install script

.dockerignore

@@ -0,0 +1,3 @@
+**/*.sw*
+cmd/cmd
+/.git

.gitea/workflows/cicd.yaml

@@ -3,14 +3,19 @@ on:
   push:
     branches:
     - main
+    paths:
+    - 'cmd/**'
+    - 'src/**'
+    - 'build/**'
+    - '.gitea/**'
 
 jobs:
-  cicd:
-    name: cicd
+  ci:
+    name: ci
     runs-on: dind
     steps:
     - name: checkout
       uses: actions/checkout@v3
-    - name: cicd
+    - name: ci
       run: |
-        ls
+        bash ./build/build.sh

.gitignore

@@ -1,2 +1,2 @@
 **/*.sw*
-cmd/clitest/clitest
+cmd/cmd

build/Dockerfile

@@ -0,0 +1,11 @@
+FROM golang:1.23.9-alpine3.21 as builder
+
+COPY ./ /go/src/ana-ledger
+WORKDIR /go/src/ana-ledger
+RUN cd ./cmd; go build -o /go/bin/ana-ledger
+
+FROM alpine:3.18.4
+
+COPY --from=builder /go/bin/ana-ledger /bin/
+CMD []
+ENTRYPOINT ["/bin/ana-ledger"]

build/build.sh

@@ -0,0 +1,14 @@
+#! /bin/bash
+
+set -e
+
+img=registry-app.inhome.blapointe.com:5001/bel/ana-ledger:${1:-$(date +%Y%m%d%H%M)}
+cd "$(dirname "$(dirname "$(realpath "$BASH_SOURCE")")")"
+was=$(docker inspect $img | jq -r .[0].Id | sed 's/^sha256://')
+docker build -f ./build/Dockerfile -t $img .
+now=$(docker inspect $img | jq -r .[0].Id | sed 's/^sha256://')
+docker push $img
+if [ -n "$was" ] && [ "$was" != "$now" ] && docker inspect "$was" &> /dev/null; then
+   docker rmi "$was" || true
+   docker rmi $(docker ps | grep ${img%:*} | grep '<none>' | awk '{print $3}') || true
+fi

cmd/cli/config.go

@@ -0,0 +1,21 @@
+package cli
+
+type Config struct {
+	Files   FileList
+	BPI     string
+	CPI     string
+	CPIYear int
+	Query   struct {
+		Period       Period
+		Sort         string
+		NoRounding   bool
+		Depth        int
+		With         string
+		NoExchanging bool
+		Normalize    bool
+		USDOnly      bool
+	}
+	Compact   bool
+	GroupDate string
+	NoPercent bool
+}

cmd/cli/cpi.dat

@@ -0,0 +1 @@
+../../../../../../Sync/Core/ledger/cpi.dat

cmd/cli/flag.go

@@ -0,0 +1,90 @@
+package cli
+
+import (
+	"fmt"
+	"os"
+	"strings"
+	"time"
+)
+
+type FlagStringArray []string
+
+func (array *FlagStringArray) String() string {
+	return strings.Join(*array, ", ")
+}
+
+func (array *FlagStringArray) Set(s string) error {
+	*array = append(*array, s)
+	return nil
+}
+
+type FileList FlagStringArray
+
+func (fileList FileList) Strings() []string {
+	return ([]string)(fileList)
+}
+
+func (fileList *FileList) String() string {
+	return (*FlagStringArray)(fileList).String()
+}
+
+func (fileList *FileList) Set(s string) error {
+	if _, err := os.Stat(s); os.IsNotExist(err) {
+		return fmt.Errorf("file does not exist: %s", s)
+	}
+	return (*FlagStringArray)(fileList).Set(s)
+}
+
+type Period struct {
+	Start time.Time
+	Stop  time.Time
+}
+
+func (period Period) Empty() bool {
+	return period.Stop.Sub(period.Start) == 0
+}
+
+func (period *Period) String() string {
+	return fmt.Sprintf("%s..%s", period.Start, period.Stop)
+}
+
+func (period *Period) Set(s string) error {
+	ss := strings.Split(s, "..")
+	if err := period.setStartStop(ss[0]); err != nil {
+		return err
+	}
+
+	if len(ss) != 2 {
+	} else if err := period.setStop(ss[1]); err != nil {
+		return err
+	}
+
+	return nil
+}
+
+func (period *Period) setStartStop(s string) error {
+	stop, err := period.setT(s, &period.Start)
+	period.Stop = stop
+	return err
+}
+
+func (period *Period) setStop(s string) error {
+	_, err := period.setT(s, &period.Stop)
+	return err
+}
+
+func (*Period) setT(s string, t *time.Time) (time.Time, error) {
+	if result, err := time.Parse("2006", s); err == nil {
+		*t = result
+		return result.AddDate(1, 0, 0).Add(-1 * time.Minute), nil
+	}
+	if result, err := time.Parse("2006-01", s); err == nil {
+		*t = result
+		return result.AddDate(0, 1, 0).Add(-1 * time.Minute), nil
+	}
+	if result, err := time.Parse("2006-01-02", s); err == nil {
+		*t = result
+		return result.AddDate(0, 0, 1).Add(-1 * time.Minute), nil
+	}
+	return time.Time{}, fmt.Errorf("unimplemented format: %s", s)
+}

cmd/cli/main.go

@@ -0,0 +1,443 @@
+package cli
+
+import (
+	"bufio"
+	"context"
+	"flag"
+	"fmt"
+	"io"
+	"math"
+	"os"
+	"os/signal"
+	"slices"
+	"strings"
+	"syscall"
+	"time"
+
+	"gogs.inhome.blapointe.com/ana-ledger/src/ana"
+	"gogs.inhome.blapointe.com/ana-ledger/src/bank"
+	"gogs.inhome.blapointe.com/ana-ledger/src/bank/cache"
+	"gogs.inhome.blapointe.com/ana-ledger/src/bank/teller"
+	"gogs.inhome.blapointe.com/ana-ledger/src/ledger"
+
+	"github.com/guptarohit/asciigraph"
+	"golang.org/x/crypto/ssh/terminal"
+)
+
+func Main() {
+	var config Config
+
+	fs := flag.NewFlagSet(os.Args[0], flag.ContinueOnError)
+	fs.Var(&config.Files, "f", "paths to files")
+	fs.Var(&config.Query.Period, "period", "period can be YYYY, YYYY-mm, YYYY-mm-dd, x..y")
+	fs.StringVar(&config.Query.Sort, "S", "", "sort ie date")
+	fs.BoolVar(&config.Query.NoRounding, "no-rounding", false, "no rounding")
+	fs.BoolVar(&config.Compact, "c", false, "reg entries oneline")
+	fs.StringVar(&config.Query.With, "w", "", "regexp for transactions")
+	fs.IntVar(&config.Query.Depth, "depth", 0, "depth grouping")
+	fs.BoolVar(&config.Query.Normalize, "n", false, "normalize with default normalizer")
+	fs.BoolVar(&config.Query.USDOnly, "usd", false, "filter to usd")
+	fs.BoolVar(&config.Query.NoExchanging, "no-exchanging", true, "omit currency exchanges")
+	fs.StringVar(&config.BPI, "bpi", "", "path to bpi")
+	fs.StringVar(&config.CPI, "cpi", "", "path to cpi")
+	fs.StringVar(&config.GroupDate, "group-date", "^....-..-..", "date grouping")
+	fs.IntVar(&config.CPIYear, "cpiy", 0, "use cpi to convert usd to this year's value")
+	fs.BoolVar(&config.NoPercent, "no-percent", false, "compute percent")
+	if err := fs.Parse(os.Args[1:]); err != nil {
+		panic(err)
+	}
+
+	files := config.Files.Strings()
+	if len(files) == 0 {
+		panic("must specify at least one file")
+	}
+	ledgerFiles, err := ledger.NewFiles(files[0], files[1:]...)
+	if err != nil {
+		panic(err)
+	}
+
+	positional := fs.Args()
+	if len(positional) == 0 || len(positional[0]) < 3 {
+		panic("positional arguments required, ie bal|reg PATTERN MATCHING")
+	}
+	cmd := positional[0]
+
+	q, err := BuildQuery(config, positional[1:])
+	if err != nil {
+		panic(err)
+	}
+
+	deltas, err := ledgerFiles.Deltas()
+	if err != nil {
+		panic(err)
+	}
+
+	if period := config.Query.Period; !period.Empty() {
+		after := period.Start.Format("2006-01-02")
+		before := period.Stop.Format("2006-01-02")
+		deltas = deltas.Like(
+			ledger.LikeAfter(after),
+			ledger.LikeBefore(before),
+		)
+	}
+
+	pattern := ".*"
+	if depth := config.Query.Depth; depth > 0 {
+		patterns := []string{}
+		pattern = ""
+		for i := 0; i < depth; i++ {
+			pattern += "[^:]*:"
+			patterns = append([]string{strings.Trim(pattern, ":")}, patterns...)
+		}
+		pattern = strings.Join(patterns, "|")
+	}
+	group := ledger.GroupName(pattern)
+
+	bpis := make(ledger.BPIs)
+	if config.BPI != "" {
+		b, err := ledger.NewBPIs(config.BPI)
+		if err != nil {
+			panic(err)
+		}
+		bpis = b
+	}
+
+	cpiNormalizer := ana.NewNormalizer()
+	if config.CPI != "" && config.CPIYear > 0 {
+		c, err := ledger.NewBPIs(config.CPI)
+		if err != nil {
+			panic(err)
+		}
+		cpi := c["CPI"]
+		cpiy := cpi.Lookup(fmt.Sprintf("%d-06-01", config.CPIYear))
+		if cpiy == nil {
+			panic(fmt.Errorf("no cpi for year %d", config.CPIYear))
+		}
+
+		for date, value := range cpi {
+			cpiNormalizer = cpiNormalizer.With(".*", date, value/(*cpiy))
+		}
+	}
+
+	if config.Query.Normalize {
+		deltas = ana.NewDefaultNormalizer().Normalize(deltas)
+	}
+
+	if config.Query.With != "" {
+		deltas = deltas.Like(ledger.LikeWith(config.Query.With))
+	}
+
+	w := bufio.NewWriter(os.Stdout)
+	defer w.Flush()
+
+	maxAccW := 0
+	for _, delta := range deltas.Like(q).Group(group) {
+		if accW := len(delta.Name); accW > maxAccW {
+			maxAccW = accW
+		}
+	}
+
+	switch cmd[:3] {
+	case "bal": // balances
+		balances := deltas.Group(ledger.GroupDate(config.GroupDate)).Balances().
+			WithBPIs(bpis).
+			KindaLike(q).
+			KindaGroup(group).
+			Nonzero().
+			Normalize(cpiNormalizer, "9")
+
+		cumulatives := make(ledger.Balances)
+		cumulativesFormat := "%s%.2f"
+		if !config.NoPercent {
+			var sum float64
+			for key := range balances {
+				if _, ok := cumulatives[key]; !ok {
+					cumulatives[key] = make(ledger.Balance)
+				}
+				for currency, val := range balances[key] {
+					if currency == ledger.USD {
+						cumulatives[key][currency] = val
+						sum += val
+					} else {
+						cumulatives[key][currency] = 0
+					}
+				}
+			}
+			for key := range cumulatives {
+				cumulatives[key][ledger.USD] = 100 * cumulatives[key][ledger.USD] / sum
+			}
+			cumulativesFormat = "%.0f%%"
+		}
+
+		FPrintBalances(w, "", balances, cumulatives, config.Query.USDOnly, config.Query.Normalize, time.Now().Format("2006-01-02"), false, maxAccW, cumulativesFormat)
+	case "gra": // graph
+		dateGrouping := "^[0-9]{4}-[0-9]{2}"
+		if period := config.Query.Period; !period.Empty() {
+			day := time.Hour * 24
+			year := day * 365
+			r := period.Stop.Sub(period.Start)
+			if r > 10*year {
+				dateGrouping = "^[0-9]{4}"
+			} else if r > 5*year {
+			} else if r > year {
+				dateGrouping = "^[0-9]{4}-[0-9]{2}-[0-9]"
+			} else {
+				dateGrouping = "^[0-9]{4}-[0-9]{2}-[0-9]{2}"
+			}
+		}
+		deltas = deltas.Group(ledger.GroupDate(dateGrouping))
+
+		transactions := deltas.Transactions()
+		cumulative := make(ledger.Balances)
+		data := map[string][]float64{}
+		pushData := func() {
+			soFar := 0
+			for _, v := range data {
+				soFar = len(v)
+			}
+			for k, balance := range cumulative {
+				for curr, v := range balance {
+					if curr != ledger.USD {
+						continue
+					}
+					if _, ok := data[k]; !ok {
+						data[k] = make([]float64, soFar)
+					}
+					data[k] = append(data[k], v)
+				}
+			}
+		}
+		for i, transaction := range transactions {
+			if i > 0 && transactions[i-1][0].Date != transaction[0].Date {
+				pushData()
+			}
+			balances := ledger.Deltas(transaction).
+				Like(q).
+				Group(group).
+				Balances().
+				WithBPIsAt(bpis, transaction[0].Date).
+				Nonzero().
+				Normalize(cpiNormalizer, transaction[0].Date)
+			cumulative.PushAll(balances)
+		}
+		pushData()
+
+		labels := []string{}
+		for k := range data {
+			labels = append(labels, k)
+		}
+		slices.Sort(labels)
+
+		points := [][]float64{}
+		for _, k := range labels {
+			points = append(points, data[k])
+		}
+		for i := range points {
+			for j := range points[i] {
+				points[i][j] /= 1000.0
+			}
+		}
+
+		options := []asciigraph.Option{asciigraph.Precision(0)}
+		if _, h, err := terminal.GetSize(0); err == nil && h > 4 {
+			options = append(options, asciigraph.Height(h-4))
+		}
+		if len(labels) < 256 {
+			seriesColors := make([]asciigraph.AnsiColor, len(labels))
+			for i := range seriesColors {
+				seriesColors[i] = asciigraph.AnsiColor(i)
+			}
+			options = append(options, asciigraph.SeriesLegends(labels...))
+			options = append(options, asciigraph.SeriesColors(seriesColors...))
+		}
+		fmt.Println(asciigraph.PlotMany(points, options...))
+	case "rec": // reconcile via teller // DEAD
+		panic("dead and bad")
+		byDate := map[string]ledger.Deltas{}
+		for _, delta := range deltas {
+			delta := delta
+			byDate[delta.Date] = append(byDate[delta.Date], delta)
+		}
+
+		ctx, can := signal.NotifyContext(context.Background(), syscall.SIGINT)
+		defer can()
+
+		teller, err := teller.New()
+		if err != nil {
+			panic(err)
+		}
+		client := cache.New(teller)
+
+		accounts, err := client.Accounts(ctx)
+		if err != nil {
+			panic(err)
+		}
+
+		inDay := func(date string, transaction bank.Transaction) bool {
+			return slices.ContainsFunc(byDate[date], func(d ledger.Delta) bool {
+				v := fmt.Sprintf("%.2f", d.Value)
+				nv := fmt.Sprintf("%.2f", -1.0*d.Value)
+				a := fmt.Sprintf("%.2f", transaction.Amount)
+				return v == a || nv == a
+			})
+		}
+
+		for _, acc := range accounts {
+			transactions, err := client.Transactions(ctx, acc)
+			if err != nil {
+				panic(err)
+			}
+
+			for _, transaction := range transactions {
+				if inDay(transaction.Date, transaction) {
+					continue
+				}
+
+				msg := "missing"
+
+				ts, err := time.ParseInLocation("2006-01-02", transaction.Date, time.Local)
+				if err != nil {
+					panic(err)
+				}
+				dayBefore := ts.Add(-24 * time.Hour).Format("2006-01-02")
+				dayAfter := ts.Add(24 * time.Hour).Format("2006-01-02")
+				if inDay(dayBefore, transaction) || inDay(dayAfter, transaction) {
+					msg = "1dayoff"
+				}
+
+				prefix := "  "
+				if transaction.Status != "posted" {
+					prefix = "! "
+				}
+				fmt.Printf("[%s] %s  $%7.2f  %s%s (%s)\n", msg, transaction.Date, transaction.Amount, prefix, transaction.Details.CounterParty.Name, transaction.Description)
+			}
+		}
+	case "reg": // reg
+		deltas = deltas.Group(ledger.GroupDate(config.GroupDate))
+		transactions := deltas.Transactions()
+		cumulative := make(ledger.Balances)
+		for _, transaction := range transactions {
+			balances := ledger.Deltas(transaction).Like(q).Group(group).Balances().WithBPIsAt(bpis, transaction[0].Date).Nonzero().Normalize(cpiNormalizer, transaction[0].Date)
+			shouldPrint := false
+			shouldPrint = shouldPrint || len(balances) > 2
+			if config.Query.NoExchanging {
+				shouldPrint = shouldPrint || len(balances) > 1
+				for _, v := range balances {
+					shouldPrint = shouldPrint || len(v) == 1
+				}
+			} else {
+				shouldPrint = shouldPrint || len(balances) > 0
+			}
+			if shouldPrint {
+				cumulative.PushAll(balances)
+				cumulative = cumulative.Nonzero()
+				FPrintBalancesFor(transaction[0].Description, w, "\t\t", balances, cumulative, config.Query.USDOnly, config.Query.Normalize, transaction[0].Date, config.Compact, maxAccW, "%s%.2f")
+			}
+		}
+	default:
+		panic("unknown command " + positional[0])
+	}
+}
+
+func FPrintBalancesFor(description string, w io.Writer, linePrefix string, balances, cumulatives ledger.Balances, usdOnly, normalized bool, date string, compact bool, keyW int, cumulativeFormat string) {
+	if compact {
+		FPrintBalances(w, date+"\t", balances, cumulatives, usdOnly, normalized, date, compact, keyW, cumulativeFormat)
+	} else {
+		fmt.Fprintf(w, "%s\t%s\n", date, description)
+		FPrintBalances(w, linePrefix, balances, cumulatives, usdOnly, normalized, date, compact, keyW, cumulativeFormat)
+	}
+}
+
+func FPrintBalances(w io.Writer, linePrefix string, balances, cumulatives ledger.Balances, usdOnly, normalized bool, date string, fullKey bool, max int, cumulativeFormat string) {
+	maxes := map[ledger.Currency]float64{}
+	keys := []string{}
+	for k, v := range balances {
+		keys = append(keys, k)
+		for k2, v2 := range v {
+			if math.Abs(v2) > math.Abs(maxes[k2]) {
+				maxes[k2] = math.Abs(v2)
+			}
+		}
+	}
+	slices.Sort(keys)
+
+	normalizer := ana.NewDefaultNormalizer()
+
+	cumulativeFormat = strings.ReplaceAll(cumulativeFormat, "%", "%%")
+	format := fmt.Sprintf("%s%%-%ds\t%%s%%.2f ("+cumulativeFormat+")\n", linePrefix, max)
+	if normalized {
+		format = fmt.Sprintf("%s%%-%ds\t%%s%%.2f (%%s%%.2f (%%.2f @%%.2f ("+cumulativeFormat+")))\n", linePrefix, max)
+	}
+	for i, key := range keys {
+		printableKey := key
+		if fullKey {
+		} else if i == 0 {
+		} else {
+			commonPrefixLen := func() int {
+				j := 0
+				n := len(keys[i])
+				if n2 := len(keys[i-1]); n2 < n {
+					n = n2
+				}
+				for j = 0; j < n; j++ {
+					if keys[i-1][j] != keys[i][j] {
+						break
+					}
+				}
+				for keys[i][j] != ':' && j > 0 {
+					j -= 1
+				}
+				return j
+			}()
+			printableKey = strings.Repeat(" ", commonPrefixLen) + keys[i][commonPrefixLen:]
+		}
+
+		currencies := []ledger.Currency{}
+		for currency := range balances[key] {
+			currencies = append(currencies, currency)
+		}
+		slices.Sort(currencies)
+
+		for _, currency := range currencies {
+			printableCurrency := currency
+			format := format
+			if printableCurrency != "$" {
+				printableCurrency += " "
+				format = strings.ReplaceAll(format, "%.2f", "%.3f")
+			}
+			if usdOnly && printableCurrency != "$" {
+				continue
+			}
+
+			cumulative := balances[key][currency]
+			if balance, ok := cumulatives[key]; !ok {
+			} else if value, ok := balance[currency]; !ok {
+			} else {
+				cumulative = value
+			}
+
+			printingPercents := strings.Contains(cumulativeFormat, "%%%%")
+			if !printingPercents {
+				if !normalized {
+					fmt.Fprintf(w, format,
+						printableKey,
+						printableCurrency, balances[key][currency],
+						printableCurrency, cumulative,
+					)
+				} else {
+					factor := normalizer.NormalizeFactor(key, date)
+					trailingMax := maxes[currency] - math.Abs(balances[key][currency])
+					fmt.Fprintf(w, format, printableKey, printableCurrency, balances[key][currency], printableCurrency, cumulative, cumulative*factor, factor, printableCurrency, factor*trailingMax)
+				}
+			} else {
+				if !normalized {
+					fmt.Fprintf(w, format, printableKey, printableCurrency, balances[key][currency], cumulative)
+				} else {
+					factor := normalizer.NormalizeFactor(key, date)
+					trailingMax := maxes[currency] - math.Abs(balances[key][currency])
+					fmt.Fprintf(w, format, printableKey, printableCurrency, balances[key][currency], printableCurrency, cumulative, cumulative*factor, factor, factor*trailingMax)
+				}
+			}
+		}
+	}
+}

cmd/cli/query.go

@@ -0,0 +1,100 @@
+package cli
+
+import (
+	"fmt"
+	"log"
+
+	"gogs.inhome.blapointe.com/ana-ledger/src/ledger"
+)
+
+type Query struct{}
+
+func BuildQuery(config Config, args args) (ledger.Like, error) {
+	var result ledger.Like
+	var err error
+	func() {
+		defer func() {
+			if err := recover(); err != nil {
+				err = fmt.Errorf("panicked: %v", err)
+			}
+		}()
+		result, err = buildQuery(config, args)
+	}()
+	return result, err
+}
+
+func buildQuery(config Config, args args) (ledger.Like, error) {
+	likeName := func(s string) ledger.Like {
+		return ledger.LikeName(s)
+	}
+	andLike := func(a, b ledger.Like) ledger.Like {
+		return (ledger.Likes{a, b}).All
+	}
+	orLike := func(a, b ledger.Like) ledger.Like {
+		return (ledger.Likes{a, b}).Any
+	}
+	notLike := func(a ledger.Like) ledger.Like {
+		return ledger.LikeNot(a)
+	}
+
+	if !args.more() {
+		return likeName(""), nil
+	}
+	like := likeName("ajskfdlsjfkdasj")
+
+	for args.more() {
+		switch args.peek() {
+		case "and":
+			args.pop()
+			var and ledger.Like
+			switch args.peek() {
+			case "not":
+				args.pop()
+				log.Println("and not", args.peek())
+				and = notLike(likeName(args.pop()))
+			default:
+				log.Println("and ", args.peek())
+				and = likeName(args.pop())
+			}
+			like = andLike(like, and)
+		case "not":
+			args.pop()
+			log.Println("or not ", args.peek())
+			like = orLike(like, notLike(
+				likeName(args.pop()),
+			))
+		default:
+			log.Println("or ", args.peek())
+			like = orLike(like,
+				likeName(args.pop()),
+			)
+		}
+	}
+
+	return like, nil
+}
+
+type args []string
+
+func (args *args) pop() string {
+	if !args.more() {
+		panic("expected more arguments")
+	}
+	first := ""
+	if len(*args) > 0 {
+		first = (*args)[0]
+		*args = (*args)[1:]
+	}
+	return first
+}
+
+func (args *args) peek() string {
+	if len(*args) == 0 {
+		return ""
+	}
+	return (*args)[0]
+}
+
+func (args *args) more() bool {
+	return len(*args) > 0
+}

cmd/cli/run.sh

@@ -0,0 +1,12 @@
+#! /bin/bash
+
+cmd="bal"
+case "$1" in
+   bal|reg|gra|graph|rec )
+      cmd="$1"
+      shift
+   ;;
+esac
+
+cd "$(dirname "$(realpath "$BASH_SOURCE")")"
+go run ../ cli "$@" $(printf " -f %s" $HOME/Sync/Core/ledger/eras/2022-/*.txt) "$cmd" :AssetAccount:

cmd/clitest/main.go

@@ -1,473 +0,0 @@
-package main
-
-import (
-	"encoding/json"
-	"flag"
-	"fmt"
-	"io"
-	"log"
-	"maps"
-	"net/http"
-	"os"
-	"slices"
-	"sort"
-	"strconv"
-	"strings"
-	"time"
-
-	"github.com/go-echarts/go-echarts/v2/charts"
-	"github.com/go-echarts/go-echarts/v2/opts"
-	"gogs.inhome.blapointe.com/ana-ledger/ana"
-	"gogs.inhome.blapointe.com/ana-ledger/ledger"
-)
-
-func main() {
-	foo := flag.String("foo", "bal", "bal or reg")
-	likeName := flag.String("like-name", ".", "regexp to match")
-	likeBefore := flag.String("like-before", "9", "date str to compare")
-	likeAfter := flag.String("like-after", "0", "date str to compare")
-	likeLedger := flag.Bool("like-ledger", false, "limit data to these -like-* rather than zoom to these -like-*")
-	groupName := flag.String("group-name", ".*", "grouping to apply to names")
-	groupDate := flag.String("group-date", ".*", "grouping to apply to dates")
-	bpiPath := flag.String("bpi", "/dev/null", "bpi file")
-	jsonOutput := flag.Bool("json", false, "json output")
-	httpOutput := flag.String("http", "", "http output listen address, like :8080")
-	flag.Parse()
-
-	if flag.NArg() < 1 {
-		panic(fmt.Errorf("positional arguments for files required"))
-	}
-
-	f, err := ledger.NewFiles(flag.Args()[0], flag.Args()[1:]...)
-	if err != nil {
-		panic(err)
-	}
-
-	bpis := make(ledger.BPIs)
-	if *bpiPath != "" {
-		bpis, err = ledger.NewBPIs(*bpiPath)
-		if err != nil {
-			panic(err)
-		}
-	}
-
-	if *httpOutput != "" {
-		foo := func(w http.ResponseWriter, r *http.Request) {
-			if !strings.HasPrefix(r.URL.Path, "/api") {
-				http.FileServer(http.Dir("./public")).ServeHTTP(w, r)
-				return
-			}
-
-			switch r.URL.Path {
-			case "/api/transactions":
-				reqF := f
-				if queryF := r.URL.Query().Get("f"); queryF != "" {
-					reqF, err = ledger.NewFiles(queryF)
-					if err != nil {
-						panic(err)
-					}
-				}
-				deltas, err := reqF.Deltas()
-				if err != nil {
-					panic(err)
-				}
-				json.NewEncoder(w).Encode(map[string]any{
-					"deltas":   deltas.Like(ledger.LikeAfter(time.Now().Add(-1 * time.Hour * 24 * 365 / 2).Format("2006-01"))),
-					"balances": deltas.Balances().Like("^AssetAccount:").WithBPIs(bpis),
-				})
-				return
-			}
-
-			deltas, err := f.Deltas()
-			if err != nil {
-				panic(err)
-			}
-			deltas = deltas.Group(ledger.GroupName(*groupName), ledger.GroupDate(*groupDate))
-			like := ledger.Likes{
-				ledger.LikeName(*likeName),
-				ledger.LikeBefore(*likeBefore),
-				ledger.LikeAfter(*likeAfter),
-			}
-
-			foolike := make(ledger.Likes, 0)
-			for _, v := range r.URL.Query()["likeName"] {
-				foolike = append(foolike, ledger.LikeName(v))
-			}
-			for _, v := range r.URL.Query()["likeAfter"] {
-				foolike = append(foolike, ledger.LikeAfter(v))
-			}
-			for _, v := range r.URL.Query()["likeBefore"] {
-				foolike = append(foolike, ledger.LikeBefore(v))
-			}
-			if len(foolike) == 0 {
-				foolike = like
-			}
-			deltas = deltas.Like(foolike...)
-
-			// MODIFIERS
-			for i, whatIf := range r.URL.Query()["whatIf"] {
-				fields := strings.Fields(whatIf)
-				date := "2001-01"
-				name := fields[0]
-				currency := ledger.Currency(fields[1])
-				value, err := strconv.ParseFloat(fields[2], 64)
-				if err != nil {
-					panic(err)
-				}
-				deltas = append(deltas, ledger.Delta{
-					Date:        date,
-					Name:        name,
-					Value:       value,
-					Currency:    currency,
-					Description: fmt.Sprintf("?whatIf[%d]", i),
-				})
-			}
-
-			register := deltas.Register()
-			predicted := make(ledger.Register)
-			bpis := maps.Clone(bpis)
-
-			if predictionMonths, err := strconv.ParseInt(r.URL.Query().Get("predictionMonths"), 10, 16); err == nil && predictionMonths > 0 {
-				window := time.Hour * 24.0 * 365.0 / 12.0 * time.Duration(predictionMonths)
-				// TODO whatif
-				prediction := make(ana.Prediction, 0)
-				for _, spec := range r.URL.Query()["prediction"] {
-					idx := strings.Index(spec, "=")
-					k := spec[:idx]
-					fields := strings.Fields(spec[idx+1:])
-					switch k {
-					case "interest":
-						apy, err := strconv.ParseFloat(fields[2], 64)
-						if err != nil {
-							panic(err)
-						}
-						prediction = append(prediction, ana.NewInterestPredictor(fields[0], fields[1], apy))
-					case "autoContributions":
-						prediction = append(prediction, ana.NewAutoContributionPredictor(register))
-					case "contributions":
-						name := fields[0]
-						currency := ledger.Currency(fields[1])
-						value, err := strconv.ParseFloat(fields[2], 64)
-						if err != nil {
-							panic(err)
-						}
-						prediction = append(prediction, ana.NewContributionPredictor(ledger.Balances{name: ledger.Balance{currency: value}}))
-					default:
-						panic(k)
-					}
-				}
-				predicted = prediction.Predict(register, window)
-
-				for _, currencyRate := range r.URL.Query()["predictFixedGrowth"] {
-					currency := strings.Split(currencyRate, "=")[0]
-					rate, err := strconv.ParseFloat(strings.Split(currencyRate, "=")[1], 64)
-					if err != nil {
-						panic(err)
-					}
-					bpis, err = ana.BPIsWithFixedGrowthPrediction(bpis, window, currency, rate)
-					if err != nil {
-						panic(err)
-					}
-				}
-			}
-
-			if r.URL.Query().Get("bpi") == "true" {
-				register = register.WithBPIs(bpis)
-				predicted = predicted.WithBPIs(bpis)
-			}
-			if zoomStart, err := time.ParseInLocation("2006-01", r.URL.Query().Get("zoomStart"), time.Local); err == nil {
-				register = register.Between(zoomStart, time.Now().Add(time.Hour*24*365*100))
-				predicted = predicted.Between(zoomStart, time.Now().Add(time.Hour*24*365*100))
-			}
-			// /MODIFIERS
-
-			dates := register.Dates()
-			names := register.Names()
-			for _, date := range predicted.Dates() {
-				found := false
-				for i := range dates {
-					found = found || dates[i] == date
-				}
-				if !found {
-					dates = append(dates, date)
-				}
-			}
-			for _, name := range predicted.Names() {
-				found := false
-				for i := range names {
-					found = found || names[i] == name
-				}
-				if !found {
-					names = append(names, name)
-				}
-			}
-			instant := map[string]string{}
-			toChart := func(cumulative bool, display string, reg ledger.Register) Chart {
-				nameCurrencyDateValue := map[string]map[ledger.Currency]map[string]float64{}
-				for date, balances := range reg {
-					for name, balance := range balances {
-						for currency, value := range balance {
-							if _, ok := nameCurrencyDateValue[name]; !ok {
-								nameCurrencyDateValue[name] = make(map[ledger.Currency]map[string]float64)
-							}
-							if _, ok := nameCurrencyDateValue[name][currency]; !ok {
-								nameCurrencyDateValue[name][currency] = make(map[string]float64)
-							}
-							nameCurrencyDateValue[name][currency][date] += value
-						}
-					}
-				}
-
-				chart := NewChart("line")
-				if v := display; v != "" {
-					chart = NewChart(v)
-				}
-
-				chart.AddX(dates)
-
-				if cumulative {
-					for _, name := range names {
-						currencyDateValue := nameCurrencyDateValue[name]
-						for currency, dateValue := range currencyDateValue {
-							series := make([]int, len(dates))
-							for i := range dates {
-								var lastValue float64
-								for j := range dates[:i+1] {
-									if newLastValue, ok := dateValue[dates[j]]; ok {
-										lastValue = newLastValue
-									}
-								}
-								series[i] = int(lastValue)
-							}
-							key := fmt.Sprintf("%s (%s)", name, currency)
-							for i := range dates {
-								if !(reg.Dates()[0] <= dates[i] && dates[i] <= reg.Dates()[len(reg.Dates())-1]) {
-									series[i] = 0
-								} else {
-									instant[key] = fmt.Sprintf("@%s %v", dates[i], series[i])
-								}
-							}
-							if slices.Min(series) != 0 || slices.Max(series) != 0 {
-								chart.AddY(key, series)
-							}
-						}
-					}
-				} else {
-					for _, name := range names {
-						currencyDateValue := nameCurrencyDateValue[name]
-						for currency, dateValue := range currencyDateValue {
-							series := make([]int, len(dates))
-							for i := range dates {
-								var prevValue float64
-								var lastValue float64
-								for j := range dates[:i+1] {
-									if newLastValue, ok := dateValue[dates[j]]; ok {
-										prevValue = lastValue
-										lastValue = newLastValue
-									}
-								}
-								series[i] = int(lastValue - prevValue)
-							}
-							for i := range series { // TODO no prior so no delta
-								if series[i] != 0 {
-									series[i] = 0
-									break
-								}
-							}
-							key := fmt.Sprintf("%s (%s)", name, currency)
-							for i := range dates {
-								if !(reg.Dates()[0] <= dates[i] && dates[i] <= reg.Dates()[len(reg.Dates())-1]) {
-									series[i] = 0
-								} else {
-									instant[key] = fmt.Sprintf("@%s %v", dates[i], series[i])
-								}
-							}
-							if slices.Min(series) != 0 || slices.Max(series) != 0 {
-								chart.AddY(key, series)
-							}
-						}
-					}
-				}
-				return chart
-			}
-			primary := toChart(r.URL.Path == "/api/bal", r.URL.Query().Get("chart"), register)
-			if len(predicted) > 0 {
-				primary.Overlap(toChart(r.URL.Path == "/api/bal", "line", predicted))
-			}
-			if err := primary.Render(w); err != nil {
-				panic(err)
-			}
-			for k, v := range instant {
-				fmt.Fprintf(w, "<br>\n%s = %s", k, v)
-			}
-		}
-
-		log.Println("listening on", *httpOutput)
-		if err := http.ListenAndServe(*httpOutput, http.HandlerFunc(foo)); err != nil {
-			panic(err)
-		}
-	} else {
-		deltas, err := f.Deltas()
-		if err != nil {
-			panic(err)
-		}
-		deltas = deltas.Group(ledger.GroupName(*groupName), ledger.GroupDate(*groupDate))
-		like := ledger.Likes{ledger.LikeName(*likeName)}
-		if *likeLedger {
-			like = append(like, ledger.LikeBefore(*likeBefore))
-			like = append(like, ledger.LikeAfter(*likeAfter))
-			deltas = deltas.Like(like...)
-		} else {
-			deltas = deltas.Like(like...)
-			like = append(like, ledger.LikeBefore(*likeBefore))
-			like = append(like, ledger.LikeAfter(*likeAfter))
-		}
-
-		jsonResult := []any{}
-
-		switch *foo {
-		case "reg":
-			sort.Slice(deltas, func(i, j int) bool {
-				return deltas[i].Debug() < deltas[j].Debug()
-			})
-			register := deltas.Register()
-			for i := range deltas {
-				if like.All(deltas[i]) {
-					if !*jsonOutput {
-						fmt.Printf("%s (%+v)\n", deltas[i].Debug(), register[deltas[i].Date][deltas[i].Name].Debug())
-					} else {
-						jsonResult = append(jsonResult, map[string]any{
-							"name":    deltas[i].Name,
-							"delta":   deltas[i],
-							"balance": register[deltas[i].Date][deltas[i].Name],
-						})
-					}
-				}
-			}
-		case "bal":
-			deltas = deltas.Like(like...)
-			for k, v := range deltas.Balances() {
-				results := []string{}
-				for subk, subv := range v {
-					results = append(results, fmt.Sprintf("%s %.2f", subk, subv))
-				}
-				if len(results) > 0 {
-					if !*jsonOutput {
-						fmt.Printf("%s\t%s\n", k, strings.Join(results, " + "))
-					} else {
-						jsonResult = append(jsonResult, map[string]any{
-							"name":    k,
-							"balance": v,
-						})
-					}
-				}
-			}
-		default:
-			panic(fmt.Errorf("not impl %q", *foo))
-		}
-
-		if *jsonOutput {
-			json.NewEncoder(os.Stdout).Encode(jsonResult)
-		}
-	}
-}
-
-type Chart interface {
-	AddX(interface{})
-	AddY(string, []int)
-	Render(io.Writer) error
-	Overlap(Chart)
-}
-
-func NewChart(name string) Chart {
-	switch name {
-	case "line":
-		return NewLine()
-	case "bar":
-		return NewBar()
-	case "stack":
-		return NewStack()
-	default:
-		panic("bad chart name " + name)
-	}
-}
-
-type Line struct {
-	*charts.Line
-}
-
-func NewLine() Line {
-	return Line{Line: charts.NewLine()}
-}
-
-func (line Line) AddX(v interface{}) {
-	line.SetXAxis(v)
-}
-
-func (line Line) AddY(name string, v []int) {
-	y := make([]opts.LineData, len(v))
-	for i := range y {
-		y[i].Value = v[i]
-	}
-	line.AddSeries(name, y).
-		SetSeriesOptions(charts.WithBarChartOpts(opts.BarChart{
-			Stack: "stackB",
-		}))
-}
-
-func (line Line) Overlap(other Chart) {
-	overlapper, ok := other.(charts.Overlaper)
-	if !ok {
-		panic(fmt.Sprintf("cannot overlap %T", other))
-	}
-	line.Line.Overlap(overlapper)
-}
-
-type Bar struct {
-	*charts.Bar
-}
-
-func NewBar() Bar {
-	return Bar{Bar: charts.NewBar()}
-}
-
-func (bar Bar) AddX(v interface{}) {
-	bar.SetXAxis(v)
-}
-
-func (bar Bar) AddY(name string, v []int) {
-	y := make([]opts.BarData, len(v))
-	for i := range v {
-		y[i].Value = v[i]
-	}
-	bar.AddSeries(name, y)
-}
-
-func (bar Bar) Overlap(other Chart) {
-	overlapper, ok := other.(charts.Overlaper)
-	if !ok {
-		panic(fmt.Sprintf("cannot overlap %T", other))
-	}
-	bar.Bar.Overlap(overlapper)
-}
-
-type Stack struct {
-	Bar
-}
-
-func NewStack() Stack {
-	bar := NewBar()
-	bar.SetSeriesOptions(charts.WithBarChartOpts(opts.BarChart{Stack: "x"}))
-	return Stack{Bar: bar}
-}
-
-func (stack Stack) AddY(name string, v []int) {
-	y := make([]opts.BarData, len(v))
-	for i := range v {
-		y[i].Value = v[i]
-	}
-	stack.AddSeries(name, y).
-		SetSeriesOptions(charts.WithBarChartOpts(opts.BarChart{
-			Stack: "stackA",
-		}))
-}

cmd/clitest/moolah.dat

@@ -1 +0,0 @@
-../../../../../../Sync/Core/tmp/moolah.dat

cmd/clitest/public/index.html

@@ -1,16 +0,0 @@
-<html style="height: calc(100% - 4em);">
-  <header>
-    <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/water.css@2/out/dark.css">
-  </header>
-  <body style="height: 100%;">
-    <h1>Moolah2 Hub</h1>
-    <ul style="line-height: 3em;">
-      <li><a href="/transactions.html">Transactions on Shared Chase</a></li>
-      <li><a href="/explore.html">Explore Bel's Money</a></li>
-      <li><a href="/api/bal?x=y&mode=bal&likeName=AssetAccount&chart=stack&predictionMonths=120&bpi=true&zoomStart=2023-06&prediction=interest=AssetAccount:Cash%20\$%200.02&prediction=contributions=AssetAccount:Bonds%20$%201875&prediction=interest=AssetAccount:Monthly%20\$%200.03&prediction=contributions=AssetAccount:Monthly%20$%202500&predictFixedGrowth=VBTLX=0.02&predictFixedGrowth=GLD=0.02&predictFixedGrowth=FXAIX=0.03&predictFixedGrowth=FSPSX=0.03&whatIf=AssetAccount:Cash%20$%20-.10000&=">Project Bel's Net Worth</a></li>
-      <li><a href="/api/reg?x=y&mode=reg&likeName=Withdrawal:&chart=stack&predictionMonths=3&bpi=false&zoomStart=2023-01&prediction=autoContributions=&predictFixedGrowth=VBTLX=0&whatIf=AssetAccount:Cash%20$%20-.10000&=">Expect Bel's Expenses</a></li>
-    </ul>
-  </body>
-  <footer>
-  </footer>
-</html>

cmd/clitest/public/transactions.html

@@ -1,85 +0,0 @@
-<html>
-  <header>
-    <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/water.css@2/out/dark.css">
-    <script>
-      function http(method, remote, callback, body) {
-         var xmlhttp = new XMLHttpRequest();
-         xmlhttp.onreadystatechange = function() {
-            if (xmlhttp.readyState == XMLHttpRequest.DONE) {
-               callback(xmlhttp.responseText, xmlhttp.status)
-            }
-         };
-         xmlhttp.open(method, remote, true);
-         if (typeof body == "undefined") {
-            body = null
-         }
-         xmlhttp.send(body);
-      }
-      function callback(responseBody, responseStatus) {
-      }
-      var f = String(window.location).split("/transactions.html")[1]
-      if (!f) {
-        f = "/moolah.dat"
-      }
-      f = "." + f
-      function init() {
-        load(f)
-      }
-      function load(f) {
-        http("GET", "/api/transactions?f="+f, (body, status) => {
-          var d = JSON.parse(body)
-          loadBalances(d.balances)
-          loadDeltas(d.deltas)
-        })
-      }
-      function loadBalances(balances) {
-        var result = `<table>`
-        for (var k in balances) {
-          result += `<tr style="display: flex; flex-direction: row; width: 100%; justify-content: space-between;"><td>${k}</td><td>${Math.floor(balances[k]["$"])}</td></tr>`
-        }
-        result += `</table>`
-        document.getElementById("bal").innerHTML = result
-      }
-      function loadDeltas(deltas) {
-        console.log(deltas[0])
-        for (var i = 0; i < deltas.length/2; i++) {
-          tmp = deltas[i]
-          deltas[i] = deltas[deltas.length-1-i]
-          deltas[deltas.length-1-i] = tmp
-        }
-        console.log(deltas[0])
-        var result = `<table>`
-        for (var k of deltas) {
-          result += `<tr>`
-          result += `  <td>${k.Date}</td>`
-          result += `  <td>${k.Description}</td>`
-          result += `  <td>${k.Name}</td>`
-          result += `  <td style="text-align: right">${k.Currency}</td>`
-          result += `  <td style="text-align: right">${k.Value}</td>`
-          result += `</tr>`
-        }
-        result += `</table>`
-        document.getElementById("reg").innerHTML = result
-      }
-    </script>
-  </header>
-  <body onload="init();">
-    <h2>Moolah2</h2>
-    <details>
-      <summary>Balance</summary>
-      <div id="bal">
-      </div>
-      <details>
-        <summary><i>Look at this graph</i></summary>
-        <iframe style="background: white; width: 100%;" src="/api/reg?x=y&mode=reg&likeName=Withdrawal:[0123]&chart=stack&predictionMonths=6&prediction=autoContributions=&bpi=true&zoomStart=2023-01"></iframe>
-      </details>
-    </details>
-    <details open>
-      <summary>Register</summary>
-      <div id="reg">
-      </div>
-    </details>
-  </body>
-  <footer>
-  </footer>
-</html>

cmd/http/draw.sh

@@ -1,12 +1,13 @@
 #! /bin/bash
 
 cd "$(dirname "$(realpath "$BASH_SOURCE")")"
-go run . -http=:8081 \
+cd ..
+go run . http -http=:8081 \
    -foo reg \
    -like-after 1023-08 \
    -group-date ^....-.. \
    -group-name '^[^:]*:[^:]*' \
    -like-name '(AssetAccount|Retirement)' \
-   -bpi ./bpi.dat \
+   -bpi ./http/bpi.dat \
    "$@" \
-   macro.d/*
+   ./http/macro.d/

cmd/http/ledger.dat

@@ -0,0 +1 @@
+moolah.dat.real

cmd/http/main.go

@@ -0,0 +1,46 @@
+package http
+
+import (
+	"flag"
+	"fmt"
+	"log"
+	"net/http"
+
+	_ "embed"
+
+	"gogs.inhome.blapointe.com/ana-ledger/src/ledger"
+)
+
+func Main() {
+	likeName := flag.String("like-name", ".", "regexp to match")
+	likeBefore := flag.String("like-before", "9", "date str to compare")
+	likeAfter := flag.String("like-after", "0", "date str to compare")
+	groupName := flag.String("group-name", ".*", "grouping to apply to names")
+	groupDate := flag.String("group-date", ".*", "grouping to apply to dates")
+	bpiPath := flag.String("bpi", "/dev/null", "bpi file")
+	httpOutput := flag.String("http", ":8080", "http output listen address, like :8080")
+	flag.Parse()
+
+	if flag.NArg() < 1 {
+		panic(fmt.Errorf("positional arguments for files required"))
+	}
+
+	f, err := ledger.NewFiles(flag.Args()[0], flag.Args()[1:]...)
+	if err != nil {
+		panic(err)
+	}
+
+	r := NewRouter(
+		f,
+		*likeName,
+		*likeBefore,
+		*likeAfter,
+		*groupName,
+		*groupDate,
+		*bpiPath,
+	)
+	log.Println("listening on", *httpOutput)
+	if err := http.ListenAndServe(*httpOutput, r); err != nil {
+		panic(err)
+	}
+}

cmd/http/public/explore.html

@@ -29,9 +29,15 @@
         console.log(path, query);
         document.getElementById("graph").src = window.origin + path + query
       }
+      function init() {
+        const zeroPad = (num, places) => String(num).padStart(places, '0')
+        var d = new Date()
+        d.setMonth(d.getMonth()-6)
+        document.getElementsByName("zoomStart")[0].value = `${d.getFullYear()}-${zeroPad(d.getMonth(), 2)}`
+      }
     </script>
   </header>
-  <body style="height: 100%;">
+  <body style="height: 100%;" onload="init();">
     <div id="grapher" style="width: 100%; height: 100%; display: flex; flex-direction: column;">
       <form onsubmit="draw(this); return false;" style="display: flex; flex-direction: row; flex-wrap: wrap; gap: 1em;">
         <span>
@@ -41,7 +47,7 @@
 
         <span>
           <label for="likeName">likeName</label>
-          <input name="likeName" type="text" value="AssetAccount"/>
+          <input name="likeName" type="text" value="Bel:AssetAccount"/>
         </span>
 
         <span>
@@ -61,12 +67,12 @@
 
         <span>
           <label for="zoomStart">zoomStart</label>
-          <input name="zoomStart" type="text" value="2023-06"/>
+          <input name="zoomStart" type="text" value="YYYY-MM"/>
         </span>
 
         <span>
           <label for="prediction">prediction</label>
-          <input name="prediction" type="text" value="interest=AssetAccount:Cash \$ 0.02&prediction=contributions=AssetAccount:Bonds $ 1875&prediction=interest=AssetAccount:Monthly \$ 0.03&prediction=contributions=AssetAccount:Monthly $ 2500"/>
+          <input name="prediction" type="text" value="interest=Bel:AssetAccount:Cash \$ 0.02&prediction=contributions=Bel:AssetAccount:Bonds $ 1916&prediction=interest=Bel:AssetAccount:Monthly \$ 0.03&prediction=contributions=Bel:AssetAccount:Monthly $ 3500"/>
         </span>
 
         <span>
@@ -76,7 +82,7 @@
 
         <span>
           <label for="whatIf">whatIf</label>
-          <input name="whatIf" type="text" value="AssetAccount:Cash $ -.10000"/>
+          <input name="whatIf" type="text" value="Bel:AssetAccount:Cash $ -.10000"/>
         </span>
 
         <span>

cmd/http/public/index.html

@@ -0,0 +1,28 @@
+<html style="height: calc(100% - 4em);">
+  <header>
+    <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/water.css@2/out/dark.css">
+    <script>
+      function init() {
+        const zeroPad = (num, places) => String(num).padStart(places, '0')
+        var d = new Date()
+        d.setMonth(d.getMonth()-6)
+        const replacement = `${d.getFullYear()}-${zeroPad(d.getMonth(), 2)}`
+        var anchors = document.getElementsByTagName("a")
+        for (var i = 0; i < anchors.length; i++)
+          anchors[i].href = anchors[i].href.replace("YYYY-MM", replacement)
+      }
+    </script>
+  </header>
+  <body style="height: 100%;" onload="init();">
+    <h1>Moolah2 Hub</h1>
+    <ul style="line-height: 3em;">
+      <li><a href="/transactions.html">Transactions on Shared Chase</a></li>
+      <li><a href="/api/trends">Where does the house money go?</a></li>
+      <li><a href="/explore.html">Explore Bel's Money</a></li>
+      <li><a href="/api/bal?x=y&mode=bal&likeName=AssetAccount&chart=stack&predictionMonths=120&bpi=true&zoomStart=YYYY-MM&prediction=interest=AssetAccount:Cash%20\$%200.02&prediction=contributions=AssetAccount:Bonds%20$%201875&prediction=interest=AssetAccount:Monthly%20\$%200.03&prediction=contributions=AssetAccount:Monthly%20$%202500&predictFixedGrowth=VBTLX=0.02&predictFixedGrowth=GLD=0.02&predictFixedGrowth=FXAIX=0.03&predictFixedGrowth=FSPSX=0.03&whatIf=AssetAccount:Cash%20$%20-.10000&=">Project Bel's Net Worth</a></li>
+      <!--<li><a href="/api/reg?x=y&mode=reg&likeName=Bel:Withdrawal:&chart=stack&predictionMonths=3&bpi=false&zoomStart=YYYY-MM&prediction=autoContributions=&predictFixedGrowth=VBTLX=0&whatIf=AssetAccount:Cash%20$%20-.10000&=">Expect Bel's Expenses</a></li>-->
+    </ul>
+  </body>
+  <footer>
+  </footer>
+</html>

cmd/http/public/transactions.html

@@ -0,0 +1,264 @@
+<html>
+  <header>
+    <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/water.css@2/out/dark.css">
+    <style>
+      input[type="text"] {
+        border: 1px solid black;
+      }
+      .amended {
+        border: 2px solid red;
+      }
+      .revised {
+        border: 2px solid green;
+      }
+    </style>
+    <script>
+      function http(method, remote, callback, body) {
+         var xmlhttp = new XMLHttpRequest()
+         xmlhttp.onreadystatechange = function() {
+            if (xmlhttp.readyState == XMLHttpRequest.DONE) {
+               callback(xmlhttp.responseText, xmlhttp.status)
+            }
+         }
+         xmlhttp.open(method, remote, true)
+         if (typeof body == "undefined") {
+            body = null
+         }
+         xmlhttp.send(body)
+      }
+
+      function callback(responseBody, responseStatus) {
+      }
+      //var f = String(window.location).split("/transactions.html")[1]
+      //if (!f) {
+      //  f = "/ledger.dat"
+      //}
+      //f = "." + f
+
+      function init() {
+        const zeroPad = (num, places) => String(num).padStart(places, '0')
+        var d = new Date()
+        d.setMonth(d.getMonth()-6)
+        const replacement = `${d.getFullYear()}-${zeroPad(d.getMonth(), 2)}`
+        var iframe = document.getElementsByTagName("iframe")[0]
+        iframe.src = iframe.src.replace("YYYY-MM", replacement)
+
+        load()
+      }
+
+      function load(callback) {
+        http("GET", "/api/transactions", (body, status) => {
+          var d = JSON.parse(body)
+          console.log("loading",  d)
+          loadNormalized(d.normalized)
+          loadBalances(d.balances)
+          loadTransactions(d.transactions)
+          if (callback != null) {
+            callback()
+          }
+        })
+      }
+
+      function loadNormalized(normalized) {
+        console.log("loading normalized", normalized)
+        var result = `<table>`
+        for (var k in normalized) {
+          result += `<tr style="display: flex; flex-direction: row; width: 100%; justify-content: space-between;"><td>${k}</td><td>${Math.floor(normalized[k]["$"])}</td></tr>`
+        }
+        result += `</table>`
+        document.getElementById("norm").innerHTML = result
+      }
+
+
+      function loadBalances(balances) {
+        console.log("loading balances", balances)
+        var result = `<table>`
+        for (var k in balances) {
+          result += `<tr style="display: flex; flex-direction: row; width: 100%; justify-content: space-between;"><td>${k}</td><td>${Math.floor(balances[k]["$"])}</td></tr>`
+        }
+        result += `</table>`
+        document.getElementById("bal").innerHTML = result
+      }
+
+      function loadTransactions(transactions) {
+        transactions.reverse()
+        console.log(transactions[0])
+
+        var result = `<table>`
+        for (var t of transactions) {
+          result += `<tr name="transaction-${t[0].Date}-${t[0].Description}" transaction='${btoa(JSON.stringify(t))}' style="cursor: crosshair;" onclick="stageEdit(this); return false;" class="${t[0].Transaction.includes("inbox") ? "revised" : ""}">`
+          result += `  <td style="width: 6em;">${t[0].Date}</td>`
+          result += `  <td style="width: 10em;">${t[0].Description}</td>`
+          result += `  <td><table style="margin: 0;">`
+          for (var delta of t) {
+            result += `  <tr>`
+            result += `    <td><span style="font-variant: petite-caps;">${delta.Name.split(":")[0]}</span><span style="opacity: 0.6;"> :${delta.Name.split(":").slice(1, 100).join(":")}</span></td>`
+            result += `    <td style="text-align: right; width: 2em;">${delta.Payee ? delta.Currency : ""}</td>`
+            result += `    <td style="text-align: right; width: 5em;">${delta.Payee ? delta.Value : ""}</td>`
+            result += `  </tr>`
+          }
+          result += `  </table></td>`
+          result += `</tr>`
+        }
+        result += `</table>`
+
+        document.getElementById("reg").innerHTML = result
+      }
+
+      function stageEdit(row) {
+        const xactionJSON = atob(row.attributes.transaction.value)
+        const xaction = JSON.parse(xactionJSON)
+        console.log(xaction)
+
+        row.attributes.onclick = ""
+        row.onclick = ""
+        row.style = ""
+        console.log(row)
+
+        var result = `<td colspan="3">`
+        result += `<form method="modal">`
+        result += `  <div>`
+        result += `    <label for="date">Date</label>`
+        result += `    <input type="text" name="date" value='${xaction[0].Date}' style="width: 100%;"/>`
+        result += `  </div>`
+        result += `  <div>`
+        result += `    <label for="description">Description</label>`
+        result += `    <input type="text" name="description" value='${xaction[0].Description}' style="width: 100%;"/>`
+        result += `  </div>`
+
+        for (var i in xaction) {
+          var delta = xaction[i]
+          result += `<hr>`
+          result += `<div style="display: flex; flex-direction: row; width: 100%; margin-top: 1em;">`
+          result += `  <div style="flex-grow: 1; margin-left: 1em; margin-right: 1em;">`
+          result += `    <label for="name${i}">Name${i}</label>`
+          result += `    <input type="text" name="name${i}" value='${delta.Name}' style="width: 100%;"/>`
+          result += `  </div>`
+          result += `  <div style="margin-left: 1em; margin-right: 1em;">`
+          result += `    <label for="value${i}">Value${i}</label>`
+          result += `    <input type="text" name="value${i}" value='${delta.Value}' style="width: 100%;"/>`
+          result += `  </div>`
+          result += `  <input type="button" name="submit${i}" value="Submit${i}" onclick="submitEdit(this); return false;" delta="${btoa(JSON.stringify(delta))}"/>`
+          result += `</div>`
+        }
+
+        result += `</form`
+        result += `</td>`
+
+        row.innerHTML = result
+      }
+
+      function submitEdit(btn) {
+        const old = JSON.parse(atob(btn.attributes.delta.value))
+        const now = JSON.parse(atob(btn.attributes.delta.value))
+
+        const idx = btn.name.split("submit")[1]
+        const form = btn.parentElement.parentElement
+
+        now.Value = parseFloat(form[`value${idx}`].value)
+        now.Name = form[`name${idx}`].value
+        now.Description = form[`description`].value
+        now.Date = form[`date`].value
+
+        var different = false
+        for(var k in old) {
+          different = different || old[k] != now[k]
+        }
+        if (!different) {
+          return
+        }
+
+        http("PUT", "/api/amend", (body, status) => {
+          if (status != 200)
+            throw(`Unexpected status ${status}: ${body}`)
+          load(() => {
+            /*
+              var elements = document.getElementsByName(`transaction-${old.Date}-${old.Description}`)
+              for (var ele of elements)
+                ele.className = "amended"
+              var elements = document.getElementsByName(`transaction-${now.Date}-${now.Description}`)
+              for (var ele of elements)
+                ele.className = "revised"
+            */
+          })
+        }, JSON.stringify({
+          old: old,
+          now: now,
+        }))
+      }
+
+      function create() {
+        http("POST", "/api/create", (body, status) => {
+          if (status != 200)
+            throw(`Unexpected status ${status}: ${body}`)
+          loadTransactions([])
+          load()
+        }, JSON.stringify({}))
+      }
+
+      function stage(who, contributesToHouse) {
+        var d = new Date()
+        const zeroPad = (num, places) => String(num).padStart(places, '0')
+        const today = `${d.getFullYear()}-${zeroPad(1+d.getMonth(), 2)}-${zeroPad(d.getDate(), 2)}`
+
+        var who_currency = who.split(":").at(-1).toUpperCase()
+
+        var benefactor = who
+        var benefactor_value = `-0.00 ${who_currency}`
+        var beneficiary = "AssetAccount:Chase:5876"
+        var beneficiary_value = `$0.00`
+        if (!contributesToHouse) {
+          beneficiary_value = `$-0.00`
+          benefactor_value = `0.00 ${who_currency}`
+        }
+
+        console.log(`@${today} ${benefactor} gave to ${beneficiary}`)
+      }
+    </script>
+  </header>
+  <body onload="init();" style="">
+    <h2>Moolah2</h2>
+    <details open>
+      <summary>Normalized</summary>
+      <div id="norm">
+    </details>
+    <details>
+      <summary>Balance</summary>
+      <div id="bal">
+      </div>
+      <details>
+        <summary><i>Look at this graph</i></summary>
+        <iframe style="background: white; width: 100%; resize: both;" src="/api/reg?x=y&mode=reg&likeName=Withdrawal:[0123]&chart=stack&predictionMonths=6&prediction=autoContributions=&bpi=true&zoomStart=YYYY-MM"></iframe>
+      </details>
+      <details>
+        <summary><i>Where did the money go</i></summary>
+        <iframe style="background: white; width: 100%; resize: both;" src="/api/trends"></iframe>
+      </details>
+    </details>
+    <details open style="display: none;">
+      <summary>Edit</summary>
+      <div style="display:flex; flex-direction:row; width:100%; justify-content:space-between;">
+        <div>
+          <input type="button" onclick="stage('AssetAccount:Zach', true)" value="Stage Zach's Payment"/>
+          <input type="button" onclick="stage('AssetAccount:Zach', false)" value="Stage Zach's Charge"/>
+        </div>
+        <div>
+          <input type="button" onclick="stage('AssetAccount:Bel', true)" value="Stage Bel's Payment"/>
+          <input type="button" onclick="stage('AssetAccount:Bel', false)" value="Stage Bel's Charge"/>
+        </div>
+      </div>
+    </details>
+    <details open>
+      <summary>Register</summary>
+      <form action="#" onsubmit="create(); return false;">
+        <button style="width: 100%">
+          CREATE
+        </button>
+      </form>
+      <div id="reg">
+      </div>
+    </details>
+  </body>
+  <footer>
+  </footer>
+</html>

cmd/http/router.go

@@ -0,0 +1,485 @@
+package http
+
+import (
+	"embed"
+	"encoding/json"
+	"fmt"
+	"io"
+	"io/fs"
+	"math"
+	"net/http"
+	"os"
+	"slices"
+	"strconv"
+	"strings"
+	"time"
+
+	"gogs.inhome.blapointe.com/ana-ledger/src/ana"
+	"gogs.inhome.blapointe.com/ana-ledger/src/ledger"
+	"gogs.inhome.blapointe.com/ana-ledger/src/view"
+)
+
+//go:embed public/*
+var _staticFileDir embed.FS
+
+type Router struct {
+	files ledger.Files
+	like  struct {
+		name   string
+		before string
+		after  string
+	}
+	group struct {
+		name string
+		date string
+	}
+	bpiPath string
+}
+
+func NewRouter(files ledger.Files, likeName, likeBefore, likeAfter string, groupName, groupDate string, bpiPath string) Router {
+	r := Router{}
+	r.files = files
+	r.like.name = likeName
+	r.like.before = likeBefore
+	r.like.after = likeAfter
+	r.group.name = groupName
+	r.group.date = groupDate
+	r.bpiPath = bpiPath
+	return r
+}
+
+func (router Router) ServeHTTP(w http.ResponseWriter, r *http.Request) {
+	switch strings.Split(r.URL.Path, "/")[1] {
+	case "api":
+		router.API(w, r)
+	default:
+		router.FS(w, r)
+	}
+}
+
+func (router Router) FS(w http.ResponseWriter, r *http.Request) {
+	if os.Getenv("DEBUG") != "" {
+		http.FileServer(http.Dir("./http/public")).ServeHTTP(w, r)
+	} else {
+		sub, err := fs.Sub(_staticFileDir, "public")
+		if err != nil {
+			panic(err)
+		}
+		http.FileServer(http.FS(sub)).ServeHTTP(w, r)
+	}
+}
+
+func (router Router) API(w http.ResponseWriter, r *http.Request) {
+	switch r.URL.Path {
+	case "/api/transactions":
+		router.APITransactions(w, r)
+	case "/api/amend":
+		router.APIAmend(w, r)
+	case "/api/create":
+		router.APICreate(w, r)
+	case "/api/trends":
+		router.APITrends(w, r)
+	case "/api/reg", "/api/bal":
+		router.APIReg(w, r)
+	default:
+		http.NotFound(w, r)
+	}
+}
+
+func (router Router) APITransactions(w http.ResponseWriter, r *http.Request) {
+	bpis, err := router.bpis()
+	if err != nil {
+		panic(err)
+	}
+
+	deltas, err := router.files.Deltas()
+	if err != nil {
+		panic(err)
+	}
+
+	houseRelatedDeltas := deltas.Like(ledger.LikeTransactions(
+		deltas.Like(ledger.LikeName(`^House`))...,
+	))
+	recent := time.Hour * 24 * 365 / 6
+
+	normalizer := ana.NewDefaultNormalizer()
+
+	{
+		deltas := houseRelatedDeltas.
+			Like(ledger.LikeAfter(time.Now().Add(-1 * recent).Format("2006-01")))
+
+		balances := houseRelatedDeltas.Balances().
+			Like(`^(Zach|Bel|House[^:]*:Debts:)`).
+			Group(`^[^:]*`).
+			WithBPIs(bpis)
+
+		transactions := houseRelatedDeltas.
+			Like(ledger.LikeAfter(time.Now().Add(-1 * recent).Format("2006-01"))).
+			Transactions()
+
+		normalized := normalizer.Normalize(houseRelatedDeltas).Balances().
+			Like(`^(Zach|Bel):`).
+			Group(`^[^:]*:`).
+			WithBPIs(bpis)
+		var biggest float64
+		for _, v := range normalized {
+			if v := math.Abs(v["$"]); v > biggest {
+				biggest = v
+			}
+		}
+		ks := []string{}
+		for k := range normalized {
+			ks = append(ks, k)
+		}
+		for _, k := range ks {
+			v := normalized[k]
+			if v := math.Abs(v["$"]); v < biggest {
+				normalizedDelta := biggest - v
+				normalizedFactor := normalizer.NormalizeFactor(k, time.Now().Format("2006-01-02"))
+				normalized[fmt.Sprintf(`(%s trailing $)`, k)] = ledger.Balance{"$": normalizedDelta * normalizedFactor}
+			}
+		}
+
+		json.NewEncoder(w).Encode(map[string]any{
+			"deltas":       deltas,
+			"balances":     balances,
+			"normalized":   normalized,
+			"transactions": transactions,
+		})
+	}
+}
+
+func (router Router) APITrends(w http.ResponseWriter, r *http.Request) {
+	bpis, err := router.bpis()
+	if err != nil {
+		panic(err)
+	}
+
+	deltas, err := router.files.Deltas()
+	if err != nil {
+		panic(err)
+	}
+
+	recent := time.Hour * 24 * 365 / 2
+
+	pie := func(title, groupName string, min int) {
+		recentHouseRelatedDeltas := deltas.
+			Like(ledger.LikeTransactions(
+				deltas.Like(ledger.LikeName(`^House`))...,
+			)).
+			Like(ledger.LikeAfter(time.Now().Add(-1 * recent).Format("2006-01"))).
+			Group(ledger.GroupName(groupName)).
+			Group(ledger.GroupDate(`^[0-9]*-[0-9]*`)).
+			Like(ledger.LikeNotName(`^$`))
+
+		monthsToDeltas := map[string]ledger.Deltas{}
+		for _, delta := range recentHouseRelatedDeltas {
+			monthsToDeltas[delta.Date] = append(monthsToDeltas[delta.Date], delta)
+		}
+		months := []string{}
+		for k := range monthsToDeltas {
+			months = append(months, k)
+		}
+		slices.Sort(months)
+
+		catToMonth := map[string][]int{}
+		for _, month := range months {
+			balances := monthsToDeltas[month].Balances().WithBPIs(bpis)
+			for category, balance := range balances {
+				catToMonth[category] = append(catToMonth[category], int(balance[ledger.USD]))
+			}
+		}
+
+		chart := view.NewChart("pie")
+		ttl := 0
+		for cat, month := range catToMonth {
+			for i := 0; i < len(months)-len(month); i++ {
+				month = append(month, 0)
+			}
+			slices.Sort(month)
+			median := month[len(month)/2]
+			ttl += median
+			if median > min {
+				chart.AddY(cat, []int{median})
+			}
+		}
+		fmt.Fprintln(w, "<!DOCTYPE html><h2>", title, "($", ttl, ")</h2>")
+		if err := chart.Render(w); err != nil {
+			panic(err)
+		}
+	}
+
+	pie(fmt.Sprintf("Median Monthly Spending Since %dmo ago", int(recent/time.Hour/24/30)), `Withdrawal:[0-9]*`, 50)
+	pie("Median Monthly Spending (detailed)", `Withdrawal:[0-9]*:[^:]*`, 25)
+	pie("Median Monthly Spending (MORE detailed)", `Withdrawal:[0-9]*:[^:]*:[^:]*`, 10)
+}
+
+func (router Router) APICreate(w http.ResponseWriter, r *http.Request) {
+	new := ledger.Delta{
+		Name:        "TODO",
+		Date:        time.Now().Format(`2006-01-02`),
+		Description: "TODO",
+		Currency:    "$",
+		Value:       0.01,
+	}
+
+	if err := router.files.Add("HouseyMcHouseface:Withdrawal:0:TODO", new); err != nil {
+		http.Error(w, err.Error(), http.StatusBadRequest)
+		return
+	}
+}
+
+func (router Router) APIAmend(w http.ResponseWriter, r *http.Request) {
+	b, _ := io.ReadAll(r.Body)
+
+	var req struct {
+		Old ledger.Delta
+		Now ledger.Delta
+	}
+	if err := json.Unmarshal(b, &req); err != nil {
+		http.Error(w, err.Error(), http.StatusBadRequest)
+		return
+	}
+	req.Now.Name = strings.ReplaceAll(req.Now.Name, " ", "_")
+
+	if err := router.files.Amend(req.Old, req.Now); err != nil {
+		http.Error(w, err.Error(), http.StatusBadRequest)
+		return
+	}
+}
+
+func (router Router) APIReg(w http.ResponseWriter, r *http.Request) {
+	deltas, err := router.files.Deltas()
+	if err != nil {
+		panic(err)
+	}
+	deltas = deltas.Group(ledger.GroupName(router.group.name), ledger.GroupDate(router.group.date))
+	like := ledger.Likes{
+		ledger.LikeName(router.like.name),
+		ledger.LikeBefore(router.like.before),
+		ledger.LikeAfter(router.like.after),
+	}
+
+	foolike := make(ledger.Likes, 0)
+	for _, v := range r.URL.Query()["likeName"] {
+		foolike = append(foolike, ledger.LikeName(v))
+	}
+	for _, v := range r.URL.Query()["likeAfter"] {
+		foolike = append(foolike, ledger.LikeAfter(v))
+	}
+	for _, v := range r.URL.Query()["likeBefore"] {
+		foolike = append(foolike, ledger.LikeBefore(v))
+	}
+	if len(foolike) == 0 {
+		foolike = like
+	}
+	deltas = deltas.Like(foolike...)
+
+	// MODIFIERS
+	for i, whatIf := range r.URL.Query()["whatIf"] {
+		fields := strings.Fields(whatIf)
+		date := "2001-01"
+		name := fields[0]
+		currency := ledger.Currency(fields[1])
+		value, err := strconv.ParseFloat(fields[2], 64)
+		if err != nil {
+			panic(err)
+		}
+		deltas = append(deltas, ledger.Delta{
+			Date:        date,
+			Name:        name,
+			Value:       value,
+			Currency:    currency,
+			Description: fmt.Sprintf("?whatIf[%d]", i),
+		})
+	}
+
+	register := deltas.Register()
+	predicted := make(ledger.Register)
+
+	bpis, err := router.bpis()
+	if err != nil {
+		panic(err)
+	}
+
+	if predictionMonths, err := strconv.ParseInt(r.URL.Query().Get("predictionMonths"), 10, 16); err == nil && predictionMonths > 0 {
+		window := time.Hour * 24.0 * 365.0 / 12.0 * time.Duration(predictionMonths)
+		// TODO whatif
+		prediction := make(ana.Prediction, 0)
+		for _, spec := range r.URL.Query()["prediction"] {
+			idx := strings.Index(spec, "=")
+			k := spec[:idx]
+			fields := strings.Fields(spec[idx+1:])
+			switch k {
+			case "interest":
+				apy, err := strconv.ParseFloat(fields[2], 64)
+				if err != nil {
+					panic(err)
+				}
+				prediction = append(prediction, ana.NewInterestPredictor(fields[0], fields[1], apy))
+			case "autoContributions":
+				prediction = append(prediction, ana.NewAutoContributionPredictor(register))
+			case "contributions":
+				name := fields[0]
+				currency := ledger.Currency(fields[1])
+				value, err := strconv.ParseFloat(fields[2], 64)
+				if err != nil {
+					panic(err)
+				}
+				prediction = append(prediction, ana.NewContributionPredictor(ledger.Balances{name: ledger.Balance{currency: value}}))
+			default:
+				panic(k)
+			}
+		}
+		predicted = prediction.Predict(register, window)
+
+		for _, currencyRate := range r.URL.Query()["predictFixedGrowth"] {
+			currency := strings.Split(currencyRate, "=")[0]
+			rate, err := strconv.ParseFloat(strings.Split(currencyRate, "=")[1], 64)
+			if err != nil {
+				panic(err)
+			}
+			bpis, err = ana.BPIsWithFixedGrowthPrediction(bpis, window, currency, rate)
+			if err != nil {
+				panic(err)
+			}
+		}
+	}
+
+	if r.URL.Query().Get("bpi") == "true" {
+		register = register.WithBPIs(bpis)
+		predicted = predicted.WithBPIs(bpis)
+	}
+	if zoomStart, err := time.ParseInLocation("2006-01", r.URL.Query().Get("zoomStart"), time.Local); err == nil {
+		register = register.Between(zoomStart, time.Now().Add(time.Hour*24*365*100))
+		predicted = predicted.Between(zoomStart, time.Now().Add(time.Hour*24*365*100))
+	}
+	// /MODIFIERS
+
+	dates := register.Dates()
+	names := register.Names()
+	for _, date := range predicted.Dates() {
+		found := false
+		for i := range dates {
+			found = found || dates[i] == date
+		}
+		if !found {
+			dates = append(dates, date)
+		}
+	}
+	for _, name := range predicted.Names() {
+		found := false
+		for i := range names {
+			found = found || names[i] == name
+		}
+		if !found {
+			names = append(names, name)
+		}
+	}
+	instant := map[string]string{}
+	toChart := func(cumulative bool, display string, reg ledger.Register) view.Chart {
+		nameCurrencyDateValue := map[string]map[ledger.Currency]map[string]float64{}
+		for date, balances := range reg {
+			for name, balance := range balances {
+				for currency, value := range balance {
+					if _, ok := nameCurrencyDateValue[name]; !ok {
+						nameCurrencyDateValue[name] = make(map[ledger.Currency]map[string]float64)
+					}
+					if _, ok := nameCurrencyDateValue[name][currency]; !ok {
+						nameCurrencyDateValue[name][currency] = make(map[string]float64)
+					}
+					nameCurrencyDateValue[name][currency][date] += value
+				}
+			}
+		}
+
+		chart := view.NewChart("line")
+		if v := display; v != "" {
+			chart = view.NewChart(v)
+		}
+
+		chart.AddX(dates)
+
+		if cumulative {
+			for _, name := range names {
+				currencyDateValue := nameCurrencyDateValue[name]
+				for currency, dateValue := range currencyDateValue {
+					series := make([]int, len(dates))
+					for i := range dates {
+						var lastValue float64
+						for j := range dates[:i+1] {
+							if newLastValue, ok := dateValue[dates[j]]; ok {
+								lastValue = newLastValue
+							}
+						}
+						series[i] = int(lastValue)
+					}
+					key := fmt.Sprintf("%s (%s)", name, currency)
+					for i := range dates {
+						if !(reg.Dates()[0] <= dates[i] && dates[i] <= reg.Dates()[len(reg.Dates())-1]) {
+							series[i] = 0
+						} else {
+							instant[key] = fmt.Sprintf("@%s %v", dates[i], series[i])
+						}
+					}
+					if slices.Min(series) != 0 || slices.Max(series) != 0 {
+						chart.AddY(key, series)
+					}
+				}
+			}
+		} else {
+			for _, name := range names {
+				currencyDateValue := nameCurrencyDateValue[name]
+				for currency, dateValue := range currencyDateValue {
+					series := make([]int, len(dates))
+					for i := range dates {
+						var prevValue float64
+						var lastValue float64
+						for j := range dates[:i+1] {
+							if newLastValue, ok := dateValue[dates[j]]; ok {
+								prevValue = lastValue
+								lastValue = newLastValue
+							}
+						}
+						series[i] = int(lastValue - prevValue)
+					}
+					for i := range series { // TODO no prior so no delta
+						if series[i] != 0 {
+							series[i] = 0
+							break
+						}
+					}
+					key := fmt.Sprintf("%s (%s)", name, currency)
+					for i := range dates {
+						if !(reg.Dates()[0] <= dates[i] && dates[i] <= reg.Dates()[len(reg.Dates())-1]) {
+							series[i] = 0
+						} else {
+							instant[key] = fmt.Sprintf("@%s %v", dates[i], series[i])
+						}
+					}
+					if slices.Min(series) != 0 || slices.Max(series) != 0 {
+						chart.AddY(key, series)
+					}
+				}
+			}
+		}
+		return chart
+	}
+	primary := toChart(r.URL.Path == "/api/bal", r.URL.Query().Get("chart"), register)
+	if len(predicted) > 0 {
+		primary.Overlap(toChart(r.URL.Path == "/api/bal", "line", predicted))
+	}
+	if err := primary.Render(w); err != nil {
+		panic(err)
+	}
+	for k, v := range instant {
+		fmt.Fprintf(w, "<br>\n%s = %s", k, v)
+	}
+}
+
+func (r Router) bpis() (ledger.BPIs, error) {
+	if r.bpiPath == "" {
+		return make(ledger.BPIs), nil
+	}
+	return ledger.NewBPIs(r.bpiPath)
+}

cmd/install.sh

@@ -0,0 +1,3 @@
+#! /bin/bash
+cd "$(dirname "$(realpath "$BASH_SOURCE")")"
+go build -o $GOPATH/bin/ana-ledger

cmd/install_scratch.sh

@@ -0,0 +1 @@
+CGO_ENABLED=1 CC=x86_64-linux-musl-gcc   go build -ldflags="-linkmode external -extldflags -static" -o $HOME/Go/bin/ana-ledger

cmd/main.go

@@ -0,0 +1,57 @@
+package main
+
+import (
+	"context"
+	"log"
+	"os"
+	"os/signal"
+	"strings"
+	"syscall"
+
+	"gogs.inhome.blapointe.com/ana-ledger/cmd/cli"
+	"gogs.inhome.blapointe.com/ana-ledger/cmd/http"
+	"gogs.inhome.blapointe.com/ana-ledger/src/bank/teller"
+)
+
+func main() {
+	switch os.Args[1] {
+	case "tel":
+		ctx, can := signal.NotifyContext(context.Background(), syscall.SIGINT)
+		defer can()
+
+		if c, err := teller.New(); err != nil {
+		} else if _, err := c.Accounts(ctx); err != nil {
+		} else {
+			log.Println("teller already init")
+		}
+
+		if err := teller.Init(ctx); err != nil {
+			panic(err)
+		}
+	case "http":
+		os.Args = append([]string{os.Args[0]}, os.Args[2:]...)
+		http.Main()
+	case "cli":
+		os.Args = append([]string{os.Args[0]}, os.Args[2:]...)
+		cli.Main()
+	case "shared":
+		files := os.Args[2:]
+		os.Args = []string{os.Args[0], "cli"}
+		for _, f := range files {
+			if strings.HasPrefix(f, "-") {
+				os.Args = append(os.Args, f)
+			} else {
+				os.Args = append(os.Args, "-f", f)
+			}
+		}
+		os.Args = append(os.Args,
+			"-w=^Housey",
+			"--depth=1",
+			"--usd",
+			"-n",
+			"--no-percent",
+			"bal", "^Bel", "^Zach",
+		)
+		main()
+	}
+}

go.mod

@@ -1,5 +1,17 @@
 module gogs.inhome.blapointe.com/ana-ledger
 
-go 1.21.1
+go 1.23.0
 
-require github.com/go-echarts/go-echarts/v2 v2.3.1
+toolchain go1.24.2
+
+require (
+	github.com/go-echarts/go-echarts/v2 v2.3.1
+	github.com/guptarohit/asciigraph v0.7.3
+	golang.org/x/crypto v0.38.0
+	golang.org/x/time v0.11.0
+)
+
+require (
+	golang.org/x/sys v0.33.0 // indirect
+	golang.org/x/term v0.32.0 // indirect
+)

go.sum

@@ -2,9 +2,19 @@ github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/go-echarts/go-echarts/v2 v2.3.1 h1:Yw0HVjVTxpYm48l974dMjRzx8ni2ql0kKi/kawSgxFE=
 github.com/go-echarts/go-echarts/v2 v2.3.1/go.mod h1:56YlvzhW/a+du15f3S2qUGNDfKnFOeJSThBIrVFHDtI=
+github.com/guptarohit/asciigraph v0.7.3 h1:p05XDDn7cBTWiBqWb30mrwxd6oU0claAjqeytllnsPY=
+github.com/guptarohit/asciigraph v0.7.3/go.mod h1:dYl5wwK4gNsnFf9Zp+l06rFiDZ5YtXM6x7SRWZ3KGag=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
 github.com/stretchr/testify v1.6.0 h1:jlIyCplCJFULU/01vCkhKuTyc3OorI3bJFuw6obfgho=
 github.com/stretchr/testify v1.6.0/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
+golang.org/x/crypto v0.38.0 h1:jt+WWG8IZlBnVbomuhg2Mdq0+BBQaHbtqHEFEigjUV8=
+golang.org/x/crypto v0.38.0/go.mod h1:MvrbAqul58NNYPKnOra203SB9vpuZW0e+RRZV+Ggqjw=
+golang.org/x/sys v0.33.0 h1:q3i8TbbEz+JRD9ywIRlyRAQbM0qF7hu24q3teo2hbuw=
+golang.org/x/sys v0.33.0/go.mod h1:BJP2sWEmIv4KK5OTEluFJCKSidICx8ciO85XgH3Ak8k=
+golang.org/x/term v0.32.0 h1:DR4lr0TjUs3epypdhTOkMmuF5CDFJ/8pOnbzMZPQ7bg=
+golang.org/x/term v0.32.0/go.mod h1:uZG1FhGx848Sqfsq4/DlJr3xGGsYMu/L5GW4abiaEPQ=
+golang.org/x/time v0.11.0 h1:/bpjEDfN9tkoN/ryeYHnv5hcMlc8ncjMcM4XBk5NWV0=
+golang.org/x/time v0.11.0/go.mod h1:CDIdPxbZBQxdj6cxyCIdrNogrJKMJ7pr37NYpMcMDSg=
 gopkg.in/yaml.v3 v3.0.0 h1:hjy8E9ON/egN1tAYqKb61G10WtihqetD4sz2H+8nIeA=
 gopkg.in/yaml.v3 v3.0.0/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=

ledger/balances.go

@@ -1,92 +0,0 @@
-package ledger
-
-import (
-	"fmt"
-	"maps"
-	"regexp"
-	"strings"
-)
-
-type Balances map[string]Balance
-
-type Balance map[Currency]float64
-
-func (balances Balances) Like(pattern string) Balances {
-	result := make(Balances)
-	p := regexp.MustCompile(pattern)
-	for k, v := range balances {
-		if p.MatchString(k) {
-			result[k] = maps.Clone(v)
-		}
-	}
-	return result
-}
-
-func (balances Balances) WithBPIs(bpis BPIs) Balances {
-	return balances.WithBPIsAt(bpis, "9")
-}
-
-func (balances Balances) WithBPIsAt(bpis BPIs, date string) Balances {
-	result := make(Balances)
-	for k, v := range balances {
-		if _, ok := result[k]; !ok {
-			result[k] = make(Balance)
-		}
-		for k2, v2 := range v {
-			scalar := 1.0
-			if k2 != USD {
-				scalar = bpis[k2].Lookup(date)
-			}
-			result[k][USD] += v2 * scalar
-		}
-	}
-	return result
-}
-
-func (balances Balances) PushAll(other Balances) {
-	for k, v := range other {
-		if _, ok := balances[k]; !ok {
-			balances[k] = make(Balance)
-		}
-		for k2, v2 := range v {
-			if _, ok := balances[k][k2]; !ok {
-				balances[k][k2] = 0
-			}
-			balances[k][k2] += v2
-		}
-	}
-}
-
-func (balances Balances) Push(d Delta) {
-	if _, ok := balances[d.Name]; !ok {
-		balances[d.Name] = make(Balance)
-	}
-	balances[d.Name].Push(d)
-}
-
-func (balance Balance) Push(d Delta) {
-	if _, ok := balance[d.Currency]; !ok {
-		balance[d.Currency] = 0
-	}
-	balance[d.Currency] += d.Value
-}
-
-func (balances Balances) Debug() string {
-	result := []string{}
-	for k, v := range balances {
-		result = append(result, fmt.Sprintf("%s:[%s]", k, v.Debug()))
-	}
-	return strings.Join(result, " ")
-}
-
-func (balance Balance) Debug() string {
-	result := []string{}
-	for k, v := range balance {
-		if k == USD {
-			result = append(result, fmt.Sprintf("%s%.2f", k, v))
-		} else {
-			result = append(result, fmt.Sprintf("%.3f %s", v, k))
-		}
-	}
-	return strings.Join(result, " + ")
-}

ledger/delta.go

@@ -1,38 +0,0 @@
-package ledger
-
-import "fmt"
-
-type Currency string
-
-const (
-	USD = Currency("$")
-)
-
-type Delta struct {
-	Date        string
-	Name        string
-	Value       float64
-	Currency    Currency
-	Description string
-	isSet       bool
-}
-
-func newDelta(d, desc, name string, v float64, c string, isSet bool) Delta {
-	return Delta{
-		Date:        d,
-		Name:        name,
-		Value:       v,
-		Currency:    Currency(c),
-		Description: desc,
-		isSet:       isSet,
-	}
-}
-
-func (delta Delta) Debug() string {
-	return fmt.Sprintf("{@%s %s:\"%s\" %s%.2f %s}", delta.Date, delta.Name, delta.Description, func() string {
-		if !delta.isSet {
-			return ""
-		}
-		return "= "
-	}(), delta.Value, delta.Currency)
-}

ledger/file.go

@@ -1,151 +0,0 @@
-package ledger
-
-import (
-	"fmt"
-	"io"
-	"os"
-	"sort"
-	"unicode"
-)
-
-var filesAppendDelim = "\t"
-
-type Files []string
-
-func NewFiles(p string, q ...string) (Files, error) {
-	f := Files(append([]string{p}, q...))
-	_, err := f.Deltas()
-	return f, err
-}
-
-func (files Files) Add(payee string, delta Delta) error {
-	currencyValue := fmt.Sprintf("%s%.2f", delta.Currency, delta.Value)
-	if delta.Currency != USD {
-		currencyValue = fmt.Sprintf("%.2f %s", delta.Value, delta.Currency)
-	}
-	return files.append(fmt.Sprintf("%s   %s\n%s%s%s%s\n%s%s",
-		delta.Date, delta.Description,
-		filesAppendDelim, delta.Name, filesAppendDelim+filesAppendDelim+filesAppendDelim, currencyValue,
-		filesAppendDelim, payee,
-	))
-}
-
-func (files Files) append(s string) error {
-	if err := files.trimTrainlingWhitespace(); err != nil {
-		return err
-	}
-
-	f, err := os.OpenFile(string(files[0]), os.O_APPEND|os.O_CREATE|os.O_WRONLY, os.ModePerm)
-	if err != nil {
-		return err
-	}
-	defer f.Close()
-
-	fmt.Fprintf(f, "\n%s", s)
-	return f.Close()
-}
-
-func (files Files) trimTrainlingWhitespace() error {
-	idx, err := files._lastNonWhitespacePos()
-	if err != nil {
-		return err
-	}
-	if idx < 1 {
-		return nil
-	}
-
-	f, err := os.OpenFile(string(files[0]), os.O_CREATE|os.O_WRONLY, os.ModePerm)
-	if err != nil {
-		return err
-	}
-	defer f.Close()
-
-	return f.Truncate(int64(idx + 1))
-}
-
-func (files Files) _lastNonWhitespacePos() (int, error) {
-	f, err := os.Open(string(files[0]))
-	if os.IsNotExist(err) {
-		return -1, nil
-	}
-	if err != nil {
-		return -1, err
-	}
-	defer f.Close()
-
-	b, err := io.ReadAll(f)
-	if err != nil {
-		return -1, err
-	}
-	for i := len(b) - 1; i >= 0; i-- {
-		if !unicode.IsSpace(rune(b[i])) {
-			return i, nil
-		}
-	}
-	return len(b) - 1, nil
-}
-
-func (files Files) Deltas(like ...Like) (Deltas, error) {
-	transactions, err := files.transactions()
-	if err != nil {
-		return nil, err
-	}
-	sort.Slice(transactions, func(i, j int) bool {
-		return fmt.Sprintf("%s %s", transactions[i].date, transactions[i].description) < fmt.Sprintf("%s %s", transactions[j].date, transactions[j].description)
-	})
-
-	result := make(Deltas, 0, len(transactions)*2)
-	for _, transaction := range transactions {
-		sums := map[string]float64{}
-		for _, recipient := range transaction.recipients {
-			sums[recipient.currency] += recipient.value
-			delta := newDelta(
-				transaction.date,
-				transaction.description,
-				recipient.name,
-				recipient.value,
-				recipient.currency,
-				recipient.isSet,
-			)
-			result = append(result, delta)
-		}
-		for currency, value := range sums {
-			if value == 0 {
-				continue
-			}
-			if transaction.payee == "" {
-				//return nil, fmt.Errorf("didnt find net zero and no dumping ground payee set: %+v", transaction)
-			} else {
-				delta := newDelta(
-					transaction.date,
-					transaction.description,
-					transaction.payee,
-					-1.0*value,
-					currency,
-					false,
-				)
-				result = append(result, delta)
-			}
-		}
-	}
-
-	balances := make(Balances)
-	for i := range result {
-		if result[i].isSet {
-			var was float64
-			if m, ok := balances[result[i].Name]; ok {
-				was = m[result[i].Currency]
-			}
-			result[i].Value = result[i].Value - was
-			result[i].isSet = false
-		}
-		balances.Push(result[i])
-	}
-
-	for i := range result {
-		if result[i].isSet {
-			return nil, fmt.Errorf("failed to resolve isSet: %+v", result[i])
-		}
-	}
-	return result.Like(like...), nil
-}

ledger/like.go

@@ -1,49 +0,0 @@
-package ledger
-
-import (
-	"regexp"
-)
-
-type Like func(Delta) bool
-
-type Likes []Like
-
-func LikeBefore(date string) Like {
-	return func(d Delta) bool {
-		return date >= d.Date
-	}
-}
-
-func LikeAfter(date string) Like {
-	return func(d Delta) bool {
-		return date <= d.Date
-	}
-}
-
-func LikeName(pattern string) Like {
-	return func(d Delta) bool {
-		return like(pattern, d.Name)
-	}
-}
-
-func like(pattern string, other string) bool {
-	return regexp.MustCompile(pattern).MatchString(other)
-}
-
-func (likes Likes) Any(delta Delta) bool {
-	for i := range likes {
-		if likes[i](delta) {
-			return true
-		}
-	}
-	return false
-}
-
-func (likes Likes) All(delta Delta) bool {
-	for i := range likes {
-		if !likes[i](delta) {
-			return false
-		}
-	}
-	return true
-}

ledger/testdata/macro.d

@@ -1 +0,0 @@
-../../../../../../Sync/Core/ledger/eras/2022-

ledger/testdata/macro.dat

@@ -1 +0,0 @@
-../../../../../../Sync/Core/ledger/eras/2022-/fidelity.76.dat.txt

ledger/transaction.go

@@ -1,223 +0,0 @@
-package ledger
-
-import (
-	"bufio"
-	"bytes"
-	"fmt"
-	"io"
-	"os"
-	"regexp"
-	"strconv"
-	"unicode"
-)
-
-type transaction struct {
-	date        string
-	description string
-	payee       string
-	recipients  []transactionRecipient
-}
-
-func (t transaction) empty() bool {
-	return fmt.Sprint(t) == fmt.Sprint(transaction{})
-}
-
-type transactionRecipient struct {
-	name     string
-	value    float64
-	currency string
-	isSet    bool
-}
-
-func (t transactionRecipient) empty() bool {
-	return t == (transactionRecipient{})
-}
-
-func (files Files) transactions() ([]transaction, error) {
-	result := make([]transaction, 0)
-	for i := range files {
-		some, err := files._transactions(files[i])
-		if err != nil {
-			return nil, err
-		}
-		result = append(result, some...)
-	}
-	return result, nil
-}
-
-func (files Files) _transactions(file string) ([]transaction, error) {
-	f, err := os.Open(string(file))
-	if os.IsNotExist(err) {
-		return nil, nil
-	}
-	if err != nil {
-		return nil, err
-	}
-	defer f.Close()
-
-	r := bufio.NewReaderSize(f, 2048)
-
-	result := make([]transaction, 0)
-	for {
-		one, err := readTransaction(r)
-		if !one.empty() {
-			result = append(result, one)
-		}
-		if err == io.EOF {
-			return result, nil
-		}
-		if err != nil {
-			return result, err
-		}
-	}
-}
-
-func readTransaction(r *bufio.Reader) (transaction, error) {
-	result, err := _readTransaction(r)
-	if err != nil {
-		return result, err
-	}
-	if result.empty() {
-		return result, nil
-	}
-	if result.payee == "" && len(result.recipients) < 2 {
-		return result, fmt.Errorf("found a transaction with no payee and less than 2 recipeints: %+v", result)
-	}
-	if result.payee != "" && len(result.recipients) < 1 {
-		return result, fmt.Errorf("found a transaction with payee but no recipeints: %+v", result)
-	}
-	return result, nil
-}
-
-func _readTransaction(r *bufio.Reader) (transaction, error) {
-	readTransactionLeadingWhitespace(r)
-
-	firstLine, err := readTransactionLine(r)
-	if len(bytes.TrimSpace(firstLine)) == 0 {
-		return transaction{}, err
-	}
-
-	dateDescriptionPattern := regexp.MustCompile(`^([0-9]+-[0-9]+-[0-9]+)\s+(.*)$`)
-	dateDescriptionMatches := dateDescriptionPattern.FindAllSubmatch(firstLine, 4)
-	if len(dateDescriptionMatches) != 1 {
-		return transaction{}, fmt.Errorf("bad first line: %v matches: %q", len(dateDescriptionMatches), firstLine)
-	} else if len(dateDescriptionMatches[0]) != 3 {
-		return transaction{}, fmt.Errorf("bad first line: %v submatches: %q", len(dateDescriptionMatches[0]), firstLine)
-	}
-	result := transaction{
-		date:        string(dateDescriptionMatches[0][1]),
-		description: string(dateDescriptionMatches[0][2]),
-	}
-
-	for {
-		name, value, currency, isSet, err := readTransactionName(r)
-		if name != "" {
-			if currency == "" {
-				result.payee = name
-			} else {
-				result.recipients = append(result.recipients, transactionRecipient{
-					name:     name,
-					value:    value,
-					currency: currency,
-					isSet:    isSet,
-				})
-			}
-		}
-		if name == "" || err != nil {
-			return result, err
-		}
-	}
-}
-
-func readTransactionLeadingWhitespace(r *bufio.Reader) {
-	b, err := r.Peek(2048)
-	if err != nil && err != io.EOF {
-		return
-	}
-
-	i := 0
-	for i < len(b) {
-		if len(bytes.TrimSpace(b[:i])) != 0 {
-			break
-		}
-		i++
-	}
-
-	if i > 0 {
-		r.Read(make([]byte, i-1))
-	}
-}
-
-func readTransactionLine(r *bufio.Reader) ([]byte, error) {
-	for {
-		b, err := _readTransactionLine(r)
-		if err != nil || (len(bytes.TrimSpace(b)) > 0 && bytes.TrimSpace(b)[0] != '#') {
-			return b, err
-		}
-	}
-}
-
-func _readTransactionLine(r *bufio.Reader) ([]byte, error) {
-	b, err := r.Peek(2048)
-	if len(b) == 0 {
-		return nil, err
-	}
-
-	endOfLine := len(b)
-	if idx := bytes.Index(b, []byte{'\n'}); idx > -1 {
-		endOfLine = idx
-	}
-
-	b2 := make([]byte, endOfLine)
-	n, err := r.Read(b2)
-	if err == io.EOF {
-		err = nil
-	}
-
-	if check, _ := r.Peek(1); len(check) == 1 && check[0] == '\n' {
-		r.Read(make([]byte, 1))
-	}
-
-	return b2[:n], err
-}
-
-func readTransactionName(r *bufio.Reader) (string, float64, string, bool, error) {
-	line, err := readTransactionLine(r)
-	if err != nil {
-		return "", 0, "", false, err
-	}
-
-	if len(line) > 0 && !unicode.IsSpace(rune(line[0])) {
-		r2 := *r
-		*r = *bufio.NewReader(io.MultiReader(bytes.NewReader(append(line, '\n')), &r2))
-		return "", 0, "", false, nil
-	}
-
-	fields := bytes.Fields(line)
-
-	isSet := false
-	if len(fields) > 2 && string(fields[1]) == "=" {
-		isSet = true
-		fields = append(fields[:1], fields[2:]...)
-	}
-
-	switch len(fields) {
-	case 1: // payee
-		return string(fields[0]), 0, "", false, nil
-	case 2: // payee $00.00
-		b := bytes.TrimLeft(fields[1], "$")
-		value, err := strconv.ParseFloat(string(b), 64)
-		if err != nil {
-			return "", 0, "", isSet, fmt.Errorf("failed to parse value from $XX.YY from %q (%q): %w", line, fields[1], err)
-		}
-		return string(fields[0]), value, string(USD), isSet, nil
-	case 3: // payee 00.00 XYZ
-		value, err := strconv.ParseFloat(string(fields[1]), 64)
-		if err != nil {
-			return "", 0, "", false, fmt.Errorf("failed to parse value from XX.YY XYZ from %q (%q): %w", line, fields[1], err)
-		}
-		return string(fields[0]), value, string(fields[2]), isSet, nil
-	default:
-		return "", 0, "", isSet, fmt.Errorf("cannot interpret %q", line)
-	}
-}

ledger/transaction_test.go

@@ -1,68 +0,0 @@
-package ledger
-
-import (
-	"bufio"
-	"fmt"
-	"io"
-	"strings"
-	"testing"
-)
-
-func TestReadTransaction(t *testing.T) {
-	cases := map[string]struct {
-		input string
-		want  transaction
-		err   error
-	}{
-		"empty": {
-			input: "",
-			want:  transaction{},
-			err:   io.EOF,
-		},
-		"white space": {
-			input: "   ",
-			want:  transaction{},
-			err:   io.EOF,
-		},
-		"verbose": {
-			input: `
-2003-04-05            Reasoning here
-   A:B   $1.00
-   C:D   $-1.00
-         `,
-			want: transaction{
-				date:        "2003-04-05",
-				description: "Reasoning here",
-				payee:       "",
-				recipients: []transactionRecipient{
-					{
-						name:     "A:B",
-						value:    1.0,
-						currency: "$",
-					},
-					{
-						name:     "C:D",
-						value:    -1.0,
-						currency: "$",
-					},
-				},
-			},
-			err: io.EOF,
-		},
-	}
-
-	for name, d := range cases {
-		c := d
-		t.Run(name, func(t *testing.T) {
-			r := bufio.NewReader(strings.NewReader(c.input))
-			got, err := readTransaction(r)
-			if err != c.err {
-				t.Error(err)
-			}
-
-			if fmt.Sprintf("%+v", got) != fmt.Sprintf("%+v", c.want) {
-				t.Errorf("want\n\t%+v, got\n\t%+v", c.want, got)
-			}
-		})
-	}
-}

src/ana/legacy_bpi.go

@@ -5,7 +5,7 @@ import (
 	"regexp"
 	"time"
 
-	"gogs.inhome.blapointe.com/ana-ledger/ledger"
+	"gogs.inhome.blapointe.com/ana-ledger/src/ledger"
 )
 
 func BPIsWithFixedGrowthPrediction(bpis ledger.BPIs, window time.Duration, pattern string, apy float64) (ledger.BPIs, error) {

src/ana/legacy_bpi_test.go

@@ -5,7 +5,7 @@ import (
 	"testing"
 	"time"
 
-	"gogs.inhome.blapointe.com/ana-ledger/ledger"
+	"gogs.inhome.blapointe.com/ana-ledger/src/ledger"
 )
 
 func TestBPIPrediction(t *testing.T) {

src/ana/normalize.go

@@ -0,0 +1,89 @@
+package ana
+
+import (
+	"regexp"
+	"slices"
+	"strings"
+
+	"gogs.inhome.blapointe.com/ana-ledger/src/ledger"
+)
+
+type Normalizer struct {
+	m map[string][]normalize
+}
+
+type normalize struct {
+	startDate string
+	factor    float64
+}
+
+func NewDefaultNormalizer() Normalizer {
+	return NewNormalizer().
+		With("^Zach", "2025-09-01", 151). // turtle up
+		With("^Zach", "2023-10-05", 139). // to turtle
+		With("^Zach", "2021-12-30", 135). // at pluralsight
+		With("^Zach", "2020-07-30", 120). // to pluralsight
+		With("^Zach", "2019-07-16", 77).  // at fedex
+		With("^Zach", "2017-02-16", 49).  // to fedex
+		With("^Bel", "2025-10-01", 225).  // render up
+		With("^Bel", "2025-04-01", 214).  // lc4 at render
+		With("^Bel", "2023-12-05", 190).  // to render
+		With("^Bel", "2022-12-31", 154).  // at q
+		With("^Bel", "2022-06-30", 148).  // at q
+		With("^Bel", "2021-12-31", 122).  // at q
+		With("^Bel", "2020-12-31", 118).  // at q
+		With("^Bel", "2019-12-31", 111).  // at q
+		With("^Bel", "2018-12-31", 92).   // at q
+		With("^Bel", "2018-02-16", 86)    // to q
+}
+
+func NewNormalizer() Normalizer {
+	return Normalizer{
+		m: make(map[string][]normalize),
+	}
+}
+
+func (n Normalizer) With(pattern, startDate string, factor float64) Normalizer {
+	n.m[pattern] = append(n.m[pattern], normalize{startDate: startDate, factor: factor})
+	slices.SortFunc(n.m[pattern], func(a, b normalize) int {
+		return -1 * strings.Compare(a.startDate, b.startDate)
+	})
+	return n
+}
+
+func (n Normalizer) Normalize(deltas ledger.Deltas) ledger.Deltas {
+	deltas = slices.Clone(deltas)
+
+	patterns := []string{}
+	for pattern := range n.m {
+		patterns = append(patterns, pattern)
+	}
+	like := ledger.LikeName(strings.Join(patterns, "|"))
+
+	for i, delta := range deltas {
+		if !like(delta) {
+			continue
+		}
+		deltas[i] = n.NormalizeDelta(delta)
+	}
+
+	return deltas
+}
+
+func (n Normalizer) NormalizeDelta(delta ledger.Delta) ledger.Delta {
+	delta.Value /= n.NormalizeFactor(delta.Name, delta.Date)
+	return delta
+}
+
+func (n Normalizer) NormalizeFactor(name, date string) float64 {
+	for pattern := range n.m {
+		if regexp.MustCompile(pattern).MatchString(name) {
+			for _, normalize := range n.m[pattern] {
+				if normalize.startDate < date {
+					return normalize.factor
+				}
+			}
+		}
+	}
+	return 1.0
+}

src/ana/normalize_test.go

@@ -0,0 +1,30 @@
+package ana
+
+import (
+	"testing"
+
+	"gogs.inhome.blapointe.com/ana-ledger/src/ledger"
+)
+
+func TestNormalize(t *testing.T) {
+	deltas := ledger.Deltas{
+		ledger.Delta{Date: "2024-12-04", Value: 100, Name: "Bel:Withdrawal"},
+		ledger.Delta{Date: "2024-12-06", Value: 100, Name: "Bel:Withdrawal"},
+	}
+
+	normalizer := NewNormalizer().
+		With("^Bel:", "2024-12-05", 190_000).
+		With("^Bel:", "2018-02-16", 86_000)
+
+	normalized := normalizer.Normalize(deltas)
+	for i, delta := range normalized {
+		t.Logf("[%d] %+v", i, delta)
+	}
+
+	if normalized[0].Value != 100/float64(86_000) {
+		t.Errorf("earliest transaction didnt use earliest salary")
+	}
+	if normalized[1].Value != 100/float64(190_000) {
+		t.Errorf("latest transaction didnt use latest salary")
+	}
+}

src/ana/prediction.go

@@ -4,7 +4,7 @@ import (
 	"maps"
 	"time"
 
-	"gogs.inhome.blapointe.com/ana-ledger/ledger"
+	"gogs.inhome.blapointe.com/ana-ledger/src/ledger"
 )
 
 type Prediction []Predictor

src/ana/prediction_test.go

@@ -5,7 +5,7 @@ import (
 	"testing"
 	"time"
 
-	"gogs.inhome.blapointe.com/ana-ledger/ledger"
+	"gogs.inhome.blapointe.com/ana-ledger/src/ledger"
 )
 
 func TestPredictionPredict(t *testing.T) {

src/ana/predictor.go

@@ -7,7 +7,7 @@ import (
 	"slices"
 	"time"
 
-	"gogs.inhome.blapointe.com/ana-ledger/ledger"
+	"gogs.inhome.blapointe.com/ana-ledger/src/ledger"
 )
 
 const (

src/ana/predictor_test.go

@@ -4,7 +4,7 @@ import (
 	"testing"
 	"time"
 
-	"gogs.inhome.blapointe.com/ana-ledger/ledger"
+	"gogs.inhome.blapointe.com/ana-ledger/src/ledger"
 )
 
 func TestNewInterestPredictor(t *testing.T) {

src/bank/cache/cache.go

@@ -0,0 +1,107 @@
+package cache
+
+import (
+	"context"
+	"encoding/json"
+	"fmt"
+	"log"
+	"os"
+	"path"
+	"time"
+
+	"gogs.inhome.blapointe.com/ana-ledger/src/bank"
+)
+
+type Client struct {
+	Client bank.Agg
+}
+
+var _ bank.Agg = Client{}
+
+func New(client bank.Agg) Client {
+	return Client{Client: client}
+}
+
+func (c Client) Accounts(ctx context.Context) ([]bank.Account, error) {
+	k := "accounts"
+	result := []bank.Account{}
+	if err := fromCache(k, &result); err != nil {
+		log.Printf("%q not in cache: %v", k, err)
+	} else {
+		return result, nil
+	}
+
+	result, err := c.Client.Accounts(ctx)
+	if err != nil {
+		return nil, err
+	}
+
+	toCache(k, result)
+
+	return result, nil
+}
+
+func (c Client) Transactions(ctx context.Context, a bank.Account) ([]bank.Transaction, error) {
+	k := path.Join("accounts.d", a.Account)
+	result := []bank.Transaction{}
+	if err := fromCache(k, &result); err != nil {
+		log.Printf("%q not in cache: %v", k, err)
+	} else {
+		return result, nil
+	}
+
+	result, err := c.Client.Transactions(ctx, a)
+	if err != nil {
+		return nil, err
+	}
+
+	toCache(k, result)
+
+	return result, nil
+}
+
+var (
+	d = path.Join("/tmp/ana_ledger_bank_cache.d")
+)
+
+func toCache(k string, v interface{}) {
+	if err := _toCache(k, v); err != nil {
+		log.Printf("failed to cache %s: %v", k, err)
+	}
+}
+
+func _toCache(k string, v interface{}) error {
+	b, err := json.Marshal(v)
+	if err != nil {
+		return err
+	}
+
+	p := path.Join(d, k)
+	os.MkdirAll(path.Dir(p), os.ModePerm)
+	if err := os.WriteFile(p, b, os.ModePerm); err != nil {
+		os.Remove(p)
+		return err
+	}
+
+	return nil
+}
+
+func fromCache(k string, ptr interface{}) error {
+	p := path.Join(d, k)
+	if stat, err := os.Stat(p); err != nil {
+		return err
+	} else if time.Since(stat.ModTime()) > 24*time.Hour {
+		return fmt.Errorf("stale")
+	}
+
+	b, err := os.ReadFile(p)
+	if err != nil {
+		return err
+	}
+
+	if err := json.Unmarshal(b, ptr); err != nil {
+		return err
+	}
+
+	return nil
+}

src/bank/cache/cache_integration_test.go

@@ -0,0 +1,50 @@
+//go:build integration
+
+package cache_test
+
+import (
+	"context"
+	"strconv"
+	"testing"
+
+	"gogs.inhome.blapointe.com/ana-ledger/src/bank/cache"
+	"gogs.inhome.blapointe.com/ana-ledger/src/bank/teller"
+)
+
+func Test(t *testing.T) {
+	tellerC, err := teller.New()
+	if err != nil {
+		t.Fatal(err)
+	}
+	client := cache.New(tellerC)
+
+	ctx := context.Background()
+
+	for i := 0; i < 2; i++ {
+		i := i
+		client := client
+		t.Run(strconv.Itoa(i), func(t *testing.T) {
+			accounts, err := client.Accounts(ctx)
+			if err != nil {
+				t.Fatal(err)
+			}
+
+			for _, account := range accounts {
+				account := account
+				t.Run(account.Account, func(t *testing.T) {
+					transactions, err := client.Transactions(ctx, account)
+					if err != nil {
+						t.Fatal(err)
+					}
+
+					for i, tr := range transactions {
+						t.Logf("[%d] %+v", i, tr)
+					}
+				})
+				break
+			}
+
+		})
+		client.Client = nil
+	}
+}

src/bank/teller/application_id.txt

@@ -0,0 +1 @@
+app_pdvv33dtmta4fema66000

src/bank/teller/certificate.pem

@@ -0,0 +1,29 @@
+-----BEGIN CERTIFICATE-----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+-----END CERTIFICATE-----
+

src/bank/teller/init.go

@@ -0,0 +1,64 @@
+package teller
+
+import (
+	"context"
+	_ "embed"
+	"fmt"
+	"io"
+	"net/http"
+	"os"
+	"slices"
+	"text/template"
+)
+
+var (
+	//go:embed application_id.txt
+	applicationId string
+	//go:embed init.html
+	initHTML string
+)
+
+func Init(ctx context.Context) error {
+	environment := "development"
+	if sandbox := !slices.Contains(os.Args, "forreal"); sandbox {
+		environment = "sandbox"
+	}
+	fmt.Printf("environment=%q\n", environment)
+
+	newTokens := make(chan string)
+	defer close(newTokens)
+	s := &http.Server{
+		Addr: ":20000",
+		Handler: http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+			if r.Method != http.MethodGet {
+				b, _ := io.ReadAll(r.Body)
+				newTokens <- string(b)
+				return
+			}
+
+			t, err := template.New("initHTML").Parse(initHTML)
+			if err != nil {
+				panic(err)
+			}
+
+			if err := t.Execute(w, map[string]string{
+				"applicationId": applicationId,
+				"environment":   environment,
+			}); err != nil {
+				panic(err)
+			}
+		}),
+	}
+	defer s.Close()
+	go s.ListenAndServe()
+
+	fmt.Println("Open http://localhost:20000")
+
+	select {
+	case <-ctx.Done():
+	case newToken := <-newTokens:
+		return fmt.Errorf("not impl: %q >> token.txt", newToken)
+	}
+
+	return ctx.Err()
+}

src/bank/teller/init.html

@@ -0,0 +1,58 @@
+<html>
+  <head></head>
+  <body>
+    <button id="teller-connect">Connect to your bank</button>
+
+    <h3 id="log">
+    </h3>
+
+    <script src="https://cdn.teller.io/connect/connect.js"></script>
+    <script>
+      function logme(msg) {
+         document.getElementById("log").innerHTML += `<br>* ${msg}`
+      }
+
+      function http(method, remote, callback, body) {
+         var xmlhttp = new XMLHttpRequest();
+         xmlhttp.onreadystatechange = function() {
+            if (xmlhttp.readyState == XMLHttpRequest.DONE) {
+               callback(xmlhttp.responseText, xmlhttp.status)
+            }
+         };
+         xmlhttp.open(method, remote, true);
+         if (typeof body == "undefined") {
+            body = null
+         }
+         xmlhttp.send(body);
+      }
+      function callback(responseBody, responseStatus) {
+      }
+
+      document.addEventListener("DOMContentLoaded", function() {
+         var tellerConnect = TellerConnect.setup({
+            applicationId: "{{.applicationId}}",
+            environment: "{{.environment}}",
+            products: ["verify", "balance", "transactions"],
+            onInit: function() {
+               logme("Teller Connect has initialized")
+            },
+            onSuccess: function(enrollment) {
+               logme(`User enrolled successfully: ${enrollment.accessToken}`)
+               http("post", "/", callback, enrollment.accessToken)
+            },
+            onExit: function() {
+               logme("User closed Teller Connect")
+            },
+            onFailure: function(failure) {
+               logme(`Failed: type=${failure.type} code=${failure.code} message=${failure.message}`)
+            },
+         });
+
+         var el = document.getElementById("teller-connect");
+         el.addEventListener("click", function() {
+            tellerConnect.open();
+         });
+      });
+    </script>
+  </body>
+</html>

src/bank/teller/private_key.pem

@@ -0,0 +1,28 @@
+-----BEGIN PRIVATE KEY-----
+MIIEvQIBADANBgkqhkiG9w0BAQEFAASCBKcwggSjAgEAAoIBAQC1ZtgBzbBAEG8o
+mFOWjlg8uqQzkaBphpZSoknlsWG35TY8vSskdtLuhEb19e2BvXaMTMPcJRQ+kLGP
+uhGBh2OLZIfk0qajczzn8KvLXLmmai2aoaWqu3TXNK2PYD4W7NEGp2ZVvUIgTaIm
+a20afcLd/04JtXmQwqt67gOFV09bt5p+mj7IgxqgnHHYIAyrDlgYrY02l6EwfOkv
+hnTTfbIRAloFuVh5RPjOAwLGi6ldDuEKzKOf/Czuhykwddj2vTzo+NpjWPrBjBf0
+5QkNfPTOCh5KGva9x+SMFzVBq9EtVBBRaBgl69L/ysJ+jfYHu5tibUKZbPZxjf7h
+RXe6KEmBAgMBAAECggEAExDEEyxzIciYZkPcRS6gx4E2UNU1buHeWsED00hZZOKK
+WMfpCOQUN01fx+oZFFG9a/GFhFXBUvISN3Du9hYsuDHQtpQNP5CVDiuVYsJUINF4
+CZCDwPYCybuXokITRIWPUou1jb1efdaq/C6+QNKG8J4srYiNRlGvhDQP2qvag2ET
+YtY+6OuQPF9QSeoKLBCJJi8bP/wy3OfOQkTqvlpyEGVOUc5utGuziITShL2mLtQw
+1O22r4BIFtkvnhM4kGimbSDMYwtAgMrBrktR4Xp7JICV6eZn6fJgjpYOix/4ILxS
+Ri69qPLso4qF+ML/vsTHlxQj7FwZDZozT4hm3DK3gQKBgQDdnEAdQYuKIvwrHflk
+Pxb9q7MjrMJMGiA9GvSVTimeWu68kH2y/dUUQyBtr8SRCScNUmhRCfaZCBakSYR0
+0v+6FLXleI28dD93Qzn70G0N6kVdKLdM3Rt0r+fojPhP+8pHn74UzvcoGUDOzoax
+VPvHLe19wqrbRFIU4IAE6qjmNQKBgQDRjUFjRJIh4wgrB6rROeoTtYRRyS9RLliw
+dpH78Vz7OYTx7qnvtVOl8led82Ott7hEXcK9Ihobz8uPCewW/x+sPYty13shT46K
+8zEj9FoP9XhAS3MOqLDNx7h5jv7nvua8aRQEPkF30SmPqb+X4nN5+JjuJiTqWgJ+
+5nfnyX4PnQKBgQCE87brVmV27GJJI+R5JfiPG7GPl5fBvHLW9hMCeDAz1u4fprgi
+6HIrg9IyvB67vLf3IBeBdu7BBL9AtPKIfAX8B2zRTLAL/doNnQFud67ViFUw/Lpr
+nMNaECabt+dJZRAIRGfvZ/OT1QKyj+jy/r9G0eEHcAC9J5HvAHkNehL2eQKBgAU+
+a6x4Qs/mRoYNIxEpSdpEaJNDXZPCfSWtUenkGFeREOqc9lOxTe6RKfAh7xShzFKp
+pf3lpJGdmZJyxR2uNLSytZKiIcqrmv2PKGOl8bsEgYXaXX64afQ8Uzl3gpl6BXwh
+hQa2KB0/drLJpKnAWPNsbSdIfRQAPJ/AVK/QMv9hAoGAMtmCDJK1KVZcpFJbFSMk
+pPJjcp1XRWKsiBOPfUKlwbBSFDBUnhyPcsfL9ooAwzBnBcpNf6S5I+I22AdDuk8E
+S3uOBBlNhoecWN1tqVlcbTR1p5kXV0WVAcQ09hGPqja5ghrTTpWbC7SviSVNa0fx
+LXKvqDx5qTleSmrPwPs5TW4=
+-----END PRIVATE KEY-----

src/bank/teller/teller.go

@@ -0,0 +1,95 @@
+package teller
+
+import (
+	"context"
+	"crypto/tls"
+	_ "embed"
+	"encoding/json"
+	"fmt"
+	"io"
+	"log"
+	"net/http"
+	"strings"
+	"time"
+
+	"gogs.inhome.blapointe.com/ana-ledger/src/bank"
+
+	"golang.org/x/time/rate"
+)
+
+type Client struct {
+	cert tls.Certificate
+}
+
+var _ bank.Agg = Client{}
+
+var (
+	//go:embed certificate.pem
+	certificate []byte
+	//go:embed private_key.pem
+	privateKey []byte
+	//go:embed token.txt
+	Tokens string
+)
+
+func New() (Client, error) {
+	cert, err := tls.X509KeyPair(certificate, privateKey)
+	return Client{cert: cert}, err
+}
+
+func (c Client) Accounts(ctx context.Context) ([]bank.Account, error) {
+	var result []bank.Account
+	for _, token := range strings.Fields(Tokens) {
+		var more []bank.Account
+		if err := c.get(ctx, "https://api.teller.io/accounts", token, &more); err != nil {
+			return nil, err
+		}
+		for i := range more {
+			more[i].Token = token
+		}
+		result = append(result, more...)
+	}
+	return result, nil
+}
+
+func (c Client) Transactions(ctx context.Context, a bank.Account) ([]bank.Transaction, error) {
+	var result []bank.Transaction
+	err := c.get(ctx, "https://api.teller.io/accounts/"+a.Account+"/transactions", a.Token, &result)
+	return result, err
+}
+
+var limiter = rate.NewLimiter(0.1, 1)
+
+func (c Client) get(ctx context.Context, url, token string, ptr interface{}) error {
+	if err := limiter.Wait(ctx); err != nil {
+		return err
+	}
+
+	log.Printf("Teller.Get(%s, %s)", url, token)
+	httpc := &http.Client{
+		Timeout: time.Second,
+		Transport: &http.Transport{
+			DisableKeepAlives: true,
+			TLSClientConfig:   &tls.Config{Certificates: []tls.Certificate{c.cert}},
+		},
+	}
+
+	req, err := http.NewRequest(http.MethodGet, url, nil)
+	if err != nil {
+		return err
+	}
+	req.SetBasicAuth(token, "")
+	req = req.WithContext(ctx)
+
+	resp, err := httpc.Do(req)
+	if err != nil {
+		return err
+	}
+	defer resp.Body.Close()
+
+	b, _ := io.ReadAll(resp.Body)
+	if err := json.Unmarshal(b, &ptr); err != nil {
+		return fmt.Errorf("cannot unmarshal: %w: %s", err, b)
+	}
+	return nil
+}

src/bank/teller/teller_integration_test.go

@@ -0,0 +1,41 @@
+//go:build integration
+
+package teller_test
+
+import (
+	"context"
+	"testing"
+
+	"gogs.inhome.blapointe.com/ana-ledger/src/bank/teller"
+)
+
+func Test(t *testing.T) {
+	teller.Tokens = "test_token_bfu2cyvq3il6o"
+
+	c, err := teller.New()
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	ctx := context.Background()
+
+	accounts, err := c.Accounts(ctx)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	for _, account := range accounts {
+		account := account
+		t.Run(account.Account, func(t *testing.T) {
+			transactions, err := c.Transactions(ctx, account)
+			if err != nil {
+				t.Fatal(err)
+			}
+
+			for i, tr := range transactions {
+				t.Logf("[%d] %+v", i, tr)
+			}
+		})
+		break
+	}
+}

src/bank/teller/teller_manual_test.go

@@ -0,0 +1,59 @@
+//go:build manual
+
+package teller_test
+
+import (
+	"crypto/tls"
+	"io"
+	"net/http"
+	"testing"
+	"time"
+
+	"gogs.inhome.blapointe.com/ana-ledger/src/bank/teller"
+)
+
+func TestIntegration(t *testing.T) {
+	teller.Tokens = "test_token_bfu2cyvq3il6o"
+
+	//curl --cert certificate.pem --cert-key private_key.pem   --auth test_token_bfu2cyvq3il6o: https://api.teller.io/accounts
+	cert, err := tls.LoadX509KeyPair("./certificate.pem", "./private_key.pem")
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	c := &http.Client{
+		Timeout: time.Second,
+		Transport: &http.Transport{
+			DisableKeepAlives: true,
+			TLSClientConfig:   &tls.Config{Certificates: []tls.Certificate{cert}},
+		},
+	}
+	//curl --cert certificate.pem --cert-key private_key.pem   --auth test_token_bfu2cyvq3il6o: https://api.teller.io/accounts
+
+	for _, url := range []string{
+		"https://api.teller.io/accounts",
+		"https://api.teller.io/accounts/acc_pdvv4810fi9hmrcn6g000/transactions",
+	} {
+		url := url
+		t.Run(url, func(t *testing.T) {
+			req, err := http.NewRequest(http.MethodGet, url, nil)
+			if err != nil {
+				t.Fatal(err)
+			}
+			req.SetBasicAuth("test_token_bfu2cyvq3il6o", "")
+
+			resp, err := c.Do(req)
+			if err != nil {
+				t.Fatal(err)
+			}
+			defer resp.Body.Close()
+
+			body, _ := io.ReadAll(resp.Body)
+			if code := resp.StatusCode; code >= 300 {
+				t.Fatalf("(%d) %s", code, body)
+			}
+
+			t.Logf("(%d) %s", resp.StatusCode, body)
+		})
+	}
+}

src/bank/teller/token.txt

@@ -0,0 +1,2 @@
+token_2utqstwpn3pxwgvyno56hqdehq
+token_vr6dnzvfv7c24wuxtmnnzyiqbm

src/bank/types.go

@@ -0,0 +1,31 @@
+package bank
+
+import "context"
+
+type Agg interface {
+	Accounts(context.Context) ([]Account, error)
+	Transactions(context.Context, Account) ([]Transaction, error)
+}
+
+type Account struct {
+	Institution struct {
+		Name string `json:"name"`
+	} `json:"institution"`
+	Name    string `json:"last_four"`
+	Account string `json:"id"`
+	Token   string `json:"__token"`
+}
+
+type Transaction struct {
+	Amount  float64 `json:"amount,string"`
+	Details struct {
+		ProcessingStatus string `json:"processing_status"`
+		CounterParty     struct {
+			Name string `json:"name"`
+		} `json:"counterparty"`
+	} `json:"details"`
+	Description string `json:"description"`
+	Date        string `json:"date"`
+	Type        string `json:"type"`
+	Status      string `json:"status"`
+}

src/ledger/balances.go

@@ -0,0 +1,263 @@
+package ledger
+
+import (
+	"fmt"
+	"maps"
+	"regexp"
+	"sort"
+	"strings"
+	"time"
+)
+
+type Normalizer interface {
+	NormalizeFactor(string, string) float64
+}
+
+type Balances map[string]Balance
+
+type Balance map[Currency]float64
+
+func (balances Balances) Sub(other Balances) Balances {
+	result := make(Balances)
+	for k, v := range balances {
+		result[k] = v.Sub(other[k])
+	}
+	for k, v := range other {
+		if _, ok := balances[k]; ok {
+			continue
+		}
+		result[k] = v.Invert()
+	}
+	return result
+}
+
+func (balances Balances) Nonzero() Balances {
+	result := make(Balances)
+	for k, v := range balances {
+		if nonzero := v.Nonzero(); len(nonzero) > 0 {
+			result[k] = nonzero
+		}
+	}
+	return result
+}
+
+func (balances Balances) NotLike(pattern string) Balances {
+	result := make(Balances)
+	p := regexp.MustCompile(pattern)
+	for k, v := range balances {
+		if !p.MatchString(k) {
+			result[k] = maps.Clone(v)
+		}
+	}
+	return result
+}
+
+func (balances Balances) KindaLike(like Like) Balances {
+	ks := []string{}
+	for k := range balances {
+		ks = append(ks, k)
+	}
+	sort.Strings(ks)
+
+	result := make(Balances)
+	for _, k := range ks {
+		v := balances[k]
+		if like(v.kinda(k)) {
+			result[k] = maps.Clone(v)
+		}
+	}
+	return result
+}
+
+func (b Balance) kinda(k string) Delta {
+	return Delta{
+		Date:        time.Now().Format("2006-01-02"),
+		Name:        k,
+		Value:       b[USD],
+		Description: k,
+		Transaction: k,
+		Payee:       false,
+	}
+}
+
+func (balances Balances) Like(pattern string) Balances {
+	result := make(Balances)
+	p := regexp.MustCompile(pattern)
+	for k, v := range balances {
+		if p.MatchString(k) {
+			result[k] = maps.Clone(v)
+		}
+	}
+	return result
+}
+
+func (balances Balances) Group(pattern string) Balances {
+	result := make(Balances)
+	p := regexp.MustCompile(pattern)
+	for k, v := range balances {
+		k2 := k
+		if p.MatchString(k) {
+			k2 = p.FindString(k)
+		}
+
+		was := result[k2]
+		if was == nil {
+			was = make(Balance)
+		}
+
+		for k3, v3 := range v {
+			was[k3] += v3
+		}
+
+		result[k2] = was
+	}
+	return result
+}
+
+func (balances Balances) KindaGroup(group Group) Balances {
+	ks := []string{}
+	for k := range balances {
+		ks = append(ks, k)
+	}
+	sort.Strings(ks)
+
+	result := make(Balances)
+	for _, k := range ks {
+		v := balances[k]
+		k2 := k
+		if k3 := group(v.kinda(k)).Name; k2 != k3 {
+			k2 = k3
+		}
+
+		if _, ok := result[k2]; !ok {
+			result[k2] = make(Balance)
+		}
+
+		for k3, v3 := range v {
+			result[k2][k3] += v3
+		}
+	}
+	return result
+}
+
+func (balances Balances) WithBPIs(bpis BPIs) Balances {
+	return balances.WithBPIsAt(bpis, "9")
+}
+
+func (balances Balances) WithBPIsAt(bpis BPIs, date string) Balances {
+	ks := []string{}
+	for k := range balances {
+		ks = append(ks, k)
+	}
+	sort.Strings(ks)
+
+	result := make(Balances)
+	for _, k := range ks {
+		v := balances[k]
+		if _, ok := result[k]; !ok {
+			result[k] = make(Balance)
+		}
+		for k2, v2 := range v {
+			if k2 == USD {
+				result[k][USD] = result[k][USD] + v2
+			} else if scalar := bpis[k2].Lookup(date); scalar != nil {
+				result[k][USD] = result[k][USD] + v2*(*scalar)
+			} else {
+				result[k][k2] = result[k][k2] + v2
+			}
+		}
+	}
+	return result
+}
+
+func (balances Balances) PushAll(other Balances) {
+	for k, v := range other {
+		if _, ok := balances[k]; !ok {
+			balances[k] = make(Balance)
+		}
+		for k2, v2 := range v {
+			if _, ok := balances[k][k2]; !ok {
+				balances[k][k2] = 0
+			}
+			balances[k][k2] += v2
+		}
+	}
+}
+
+func (balances Balances) Push(d Delta) {
+	if _, ok := balances[d.Name]; !ok {
+		balances[d.Name] = make(Balance)
+	}
+	balances[d.Name].Push(d)
+}
+
+func (balance Balance) Sub(other Balance) Balance {
+	return balance.Sum(other.Invert())
+}
+
+func (balance Balance) Sum(other Balance) Balance {
+	result := make(Balance)
+	for k, v := range balance {
+		result[k] += v
+	}
+	for k, v := range other {
+		result[k] += v
+	}
+	return result
+}
+
+func (balance Balance) Nonzero() Balance {
+	result := make(Balance)
+	for k, v := range balance {
+		if v != 0 {
+			result[k] = v
+		}
+	}
+	return result
+}
+
+func (balance Balance) Invert() Balance {
+	result := make(Balance)
+	for k, v := range balance {
+		result[k] = v * -1.0
+	}
+	return result
+}
+
+func (balance Balance) Push(d Delta) {
+	if _, ok := balance[d.Currency]; !ok {
+		balance[d.Currency] = 0
+	}
+	balance[d.Currency] += d.Value
+}
+
+func (balances Balances) Debug() string {
+	result := []string{}
+	for k, v := range balances {
+		result = append(result, fmt.Sprintf("%s:[%s]", k, v.Debug()))
+	}
+	return strings.Join(result, " ")
+}
+
+func (balance Balance) Debug() string {
+	result := []string{}
+	for k, v := range balance {
+		if k == USD {
+			result = append(result, fmt.Sprintf("%s%.2f", k, v))
+		} else {
+			result = append(result, fmt.Sprintf("%.3f %s", v, k))
+		}
+	}
+	return strings.Join(result, " + ")
+}
+
+func (balances Balances) Normalize(n Normalizer, date string) Balances {
+	result := make(Balances)
+	for name, balance := range balances {
+		result[name] = make(Balance)
+		for currency, value := range balance {
+			result[name][currency] = value / n.NormalizeFactor(name, date)
+		}
+	}
+	return result
+}

src/ledger/balances_test.go

@@ -51,4 +51,38 @@ func TestBalances(t *testing.T) {
 			t.Error("didnt sum other", b["ab"])
 		}
 	})
+
+	t.Run("like", func(t *testing.T) {
+		was := make(Balances)
+		was.Push(Delta{Name: "a", Currency: USD, Value: 0.1})
+		was.Push(Delta{Name: "ab", Currency: USD, Value: 1.2})
+
+		got := was.Like(`^ab$`)
+		if len(got) != 1 || got["ab"][USD] != 1.2 {
+			t.Error(got)
+		}
+
+		got = was.NotLike(`^ab$`)
+		if len(got) != 1 || got["a"][USD] != 0.1 {
+			t.Error(got)
+		}
+	})
+
+	t.Run("group", func(t *testing.T) {
+		was := make(Balances)
+		was.Push(Delta{Name: "a:1", Currency: USD, Value: 0.1})
+		was.Push(Delta{Name: "a:2", Currency: USD, Value: 1.2})
+		was.Push(Delta{Name: "b:1", Currency: USD, Value: 2.2})
+
+		got := was.Group(`^[^:]*`)
+		if len(got) != 2 {
+			t.Error(got)
+		}
+		if got["a"][USD] != 1.3 {
+			t.Error(got)
+		}
+		if got["b"][USD] != 2.2 {
+			t.Error(got)
+		}
+	})
 }

src/ledger/bpi.go

@@ -50,7 +50,7 @@ func NewBPIs(p string) (BPIs, error) {
 	}
 }
 
-func (bpi BPI) Lookup(date string) float64 {
+func (bpi BPI) Lookup(date string) *float64 {
 	var closestWithoutGoingOver string
 	for k := range bpi {
 		if k <= date && k > closestWithoutGoingOver {
@@ -58,7 +58,8 @@ func (bpi BPI) Lookup(date string) float64 {
 		}
 	}
 	if closestWithoutGoingOver == "" {
-		return 0
+		return nil
 	}
-	return bpi[closestWithoutGoingOver]
+	f := bpi[closestWithoutGoingOver]
+	return &f
 }

src/ledger/bpi_test.go

@@ -157,16 +157,16 @@ P 2023-10-22 07:33:56 GME $17.18
 		t.Fatal(err)
 	}
 
-	if got := got["USDC"].Lookup("2099-01-01"); got != 0 {
+	if got := got["USDC"].Lookup("2099-01-01"); got != nil {
 		t.Error("default got != 0:", got)
 	}
-	if got := got["GME"].Lookup("2099-01-01"); got != 17.18 {
+	if got := got["GME"].Lookup("2099-01-01"); got == nil || *got != 17.18 {
 		t.Errorf("shouldve returned latest but got %v", got)
 	}
-	if got := got["GME"].Lookup("2023-09-19"); got != 18.22 {
+	if got := got["GME"].Lookup("2023-09-19"); got == nil || *got != 18.22 {
 		t.Errorf("shouldve returned one day before but got %v", got)
 	}
-	if got := got["GME"].Lookup("2023-09-18"); got != 18.22 {
+	if got := got["GME"].Lookup("2023-09-18"); got == nil || *got != 18.22 {
 		t.Errorf("shouldve returned day of but got %v", got)
 	}
 	t.Log(got)

src/ledger/delta.go

@@ -0,0 +1,65 @@
+package ledger
+
+import "fmt"
+
+type Currency string
+
+const (
+	USD = Currency("$")
+)
+
+type Delta struct {
+	Date        string
+	Name        string
+	Value       float64
+	Currency    Currency
+	Description string
+	Transaction string
+	Payee       bool
+
+	isSet    bool
+	fileName string
+	lineNo   int
+	with     []Delta
+}
+
+func newDelta(transaction string, payee bool, d, desc, name string, v float64, c string, isSet bool, fileName string, lineNo int) Delta {
+	return Delta{
+		Date:        d,
+		Name:        name,
+		Value:       v,
+		Currency:    Currency(c),
+		Description: desc,
+		Transaction: transaction,
+		Payee:       payee,
+
+		isSet:    isSet,
+		fileName: fileName,
+		lineNo:   lineNo,
+	}
+}
+
+func (delta Delta) withWith(other Delta) Delta {
+	other.with = nil
+	delta.with = append(delta.with, other)
+	return delta
+}
+
+func (delta Delta) equivalent(other Delta) bool {
+	delta.fileName = ""
+	delta.lineNo = 0
+	delta.with = nil
+	other.fileName = ""
+	other.lineNo = 0
+	other.with = nil
+	return fmt.Sprintf("%+v", delta) == fmt.Sprintf("%+v", other)
+}
+
+func (delta Delta) Debug() string {
+	return fmt.Sprintf("{@%s %s(payee=%v):\"%s\" %s%.2f %s @%s#%d}", delta.Date, delta.Name, delta.Payee, delta.Description, func() string {
+		if !delta.isSet {
+			return ""
+		}
+		return "= "
+	}(), delta.Value, delta.Currency, delta.fileName, delta.lineNo)
+}

src/ledger/delta_test.go

@@ -6,8 +6,14 @@ import (
 
 func TestDelta(t *testing.T) {
 	d := "2099-08-07"
-	delta := newDelta(d, "", "name", 34.56, "$", false)
+	delta := newDelta("x", true, d, "", "name", 34.56, "$", false, "", 0)
 
+	if delta.Transaction != "x" {
+		t.Error(delta.Transaction)
+	}
+	if !delta.Payee {
+		t.Error(delta.Payee)
+	}
 	if delta.Date != d {
 		t.Error(delta.Date)
 	}

src/ledger/deltas.go

@@ -57,12 +57,8 @@ func (deltas Deltas) Balances() Balances {
 		}
 		result[delta.Name][delta.Currency] += delta.Value
 		if result[delta.Name][delta.Currency] < 0.000000001 && result[delta.Name][delta.Currency] > -0.000000001 {
-			delete(result[delta.Name], delta.Currency)
-			if len(result[delta.Name]) == 0 {
-				delete(result, delta.Name)
+			result[delta.Name][delta.Currency] = 0
 		}
 	}
-	}
-
 	return result
 }

src/ledger/deltas_test.go

@@ -38,9 +38,12 @@ func TestDeltas(t *testing.T) {
 		}
 
 		balances := deltas.Balances()
-		if len(balances) != 1 {
+		if len(balances) != 2 {
 			t.Error(len(balances), balances)
 		}
+		if balances["a"][""] != 0 {
+			t.Error(balances["a"])
+		}
 		if balances["b"][""] != 1.3 {
 			t.Error(balances["b"])
 		}

src/ledger/file.go

@@ -0,0 +1,205 @@
+package ledger
+
+import (
+	"fmt"
+	"io"
+	"io/fs"
+	"os"
+	"path"
+	"path/filepath"
+	"slices"
+	"sort"
+	"strings"
+	"unicode"
+)
+
+var filesAppendDelim = "\t"
+
+type Files []string
+
+func NewFiles(p string, q ...string) (Files, error) {
+	f := Files(append([]string{p}, q...))
+	_, err := f.Deltas()
+	return f, err
+}
+
+func (files Files) Amend(old, now Delta) error {
+	if now.isSet {
+		return fmt.Errorf("cannot ammend: immutable isSet is set")
+	}
+
+	xactions, err := files.transactions()
+	if err != nil {
+		return err
+	}
+
+	var transaction transaction
+	for _, xaction := range xactions {
+		if xaction.name != old.Transaction {
+			continue
+		}
+		transaction = xaction
+		break
+	}
+
+	if transaction.payee == old.Name {
+		if len(transaction.recipients) != 1 {
+			return fmt.Errorf("cannot amend: modifying original payee, but many recipients cant share new value")
+		}
+		transaction.payee, transaction.recipients[0].name, transaction.recipients[0].value = transaction.recipients[0].name, transaction.payee, transaction.recipients[0].value*-1.0
+	}
+
+	idx := -1
+	for i, recipient := range transaction.recipients {
+		if recipient.name == old.Name && recipient.value == old.Value {
+			idx = i
+		}
+	}
+	if idx == -1 {
+		return fmt.Errorf("cannot amend: no recipient with name %q value %.2f found in %+v to set new value", old.Name, old.Value, transaction)
+	}
+
+	old.Value *= -1
+	return files.Add(transaction.payee, []Delta{old, now}...)
+}
+
+func (files Files) paths() []string {
+	result := make([]string, 0, len(files))
+	for i := range files {
+		if info, err := os.Stat(files[i]); err == nil && info.IsDir() {
+			if err := filepath.WalkDir(files[i], func(p string, d fs.DirEntry, err error) error {
+				if err != nil {
+					return err
+				}
+				if !d.IsDir() {
+					result = append(result, p)
+				}
+				return nil
+			}); err != nil {
+				panic(err)
+			}
+		} else {
+			result = append(result, files[i])
+		}
+	}
+	return result
+}
+
+func (files Files) Add(payee string, deltas ...Delta) error {
+	for _, delta := range deltas {
+		if err := files.add(payee, delta); err != nil {
+			return err
+		}
+	}
+	return nil
+}
+
+func (files Files) add(payee string, delta Delta) error {
+	currencyValue := fmt.Sprintf("%s%.2f", delta.Currency, delta.Value)
+	if delta.Currency != USD {
+		currencyValue = fmt.Sprintf("%.2f %s", delta.Value, delta.Currency)
+	}
+	return files.append(fmt.Sprintf("%s   %s\n%s%s%s%s\n%s%s",
+		delta.Date, delta.Description,
+		filesAppendDelim, delta.Name, filesAppendDelim+filesAppendDelim+filesAppendDelim, currencyValue,
+		filesAppendDelim, payee,
+	))
+}
+
+func (files Files) append(s string) error {
+	p := path.Join(path.Dir(files.paths()[0]), "inbox.txt")
+
+	if err := files.trimTrailingWhitespace(p); err != nil {
+		return err
+	}
+
+	f, err := os.OpenFile(p, os.O_APPEND|os.O_CREATE|os.O_WRONLY, os.ModePerm)
+	if err != nil {
+		return err
+	}
+	defer f.Close()
+
+	fmt.Fprintf(f, "\n%s", s)
+	return f.Close()
+}
+
+func (files Files) trimTrailingWhitespace(p string) error {
+	idx, err := files._lastNonWhitespacePos(p)
+	if err != nil {
+		return err
+	}
+	if idx < 1 {
+		return nil
+	}
+
+	f, err := os.OpenFile(p, os.O_CREATE|os.O_WRONLY, os.ModePerm)
+	if err != nil {
+		return err
+	}
+	defer f.Close()
+
+	return f.Truncate(int64(idx + 1))
+}
+
+func (files Files) _lastNonWhitespacePos(p string) (int, error) {
+	f, err := os.Open(p)
+	if os.IsNotExist(err) {
+		return -1, nil
+	}
+	if err != nil {
+		return -1, err
+	}
+	defer f.Close()
+
+	b, err := io.ReadAll(f)
+	if err != nil {
+		return -1, err
+	}
+	for i := len(b) - 1; i >= 0; i-- {
+		if !unicode.IsSpace(rune(b[i])) {
+			return i, nil
+		}
+	}
+	return len(b) - 1, nil
+}
+
+func (files Files) Deltas(like ...Like) (Deltas, error) {
+	transactions, err := files.transactions()
+	if err != nil {
+		return nil, err
+	}
+	sort.Slice(transactions, func(i, j int) bool {
+		return fmt.Sprintf("%s %s", transactions[i].date, transactions[i].description) < fmt.Sprintf("%s %s", transactions[j].date, transactions[j].description)
+	})
+
+	result := make(Deltas, 0, len(transactions)*2)
+	for _, transaction := range transactions {
+		result = append(result, transaction.deltas()...)
+	}
+	slices.SortFunc(result, func(a, b Delta) int {
+		if str := strings.Compare(a.Date+a.fileName, b.Date+b.fileName); str != 0 {
+			return str
+		}
+		return a.lineNo - b.lineNo
+	})
+
+	balances := make(Balances)
+	for i := range result {
+		if result[i].isSet {
+			var was float64
+			if m, ok := balances[result[i].Name]; ok {
+				was = m[result[i].Currency]
+			}
+			result[i].Value = result[i].Value - was
+			result[i].isSet = false
+		}
+		balances.Push(result[i])
+	}
+
+	for i := range result {
+		if result[i].isSet {
+			return nil, fmt.Errorf("failed to resolve isSet: %+v", result[i])
+		}
+	}
+	return result.Like(like...), nil
+}

src/ledger/file_test.go

@@ -7,6 +7,160 @@ import (
 	"testing"
 )
 
+func TestFileAmend(t *testing.T) {
+	cases := map[string]struct {
+		from string
+		old  Delta
+		now  Delta
+		want string
+	}{
+		"multi recipient": {
+			from: `
+2006-01-02  description
+               recipientA  $3.45
+               recipientB  $6.45
+               payee
+         `,
+			old: Delta{
+				Date:        "2006-01-02",
+				Name:        "recipientB",
+				Value:       6.45,
+				Currency:    "$",
+				Description: "description",
+			},
+			now: Delta{
+				Date:        "2106-11-12",
+				Name:        "recipientC",
+				Value:       16.45,
+				Currency:    "T",
+				Description: "1description",
+			},
+			want: `
+2006-01-02   description
+	recipientB			$-6.45
+	payee
+2106-11-12   1description
+	recipientC			16.45 T
+	payee`,
+		},
+		"recipient": {
+			from: `
+2006-01-02  description
+               recipient  $3.45
+               payee      $-3.45
+         `,
+			old: Delta{
+				Date:        "2006-01-02",
+				Name:        "recipient",
+				Value:       3.45,
+				Currency:    "$",
+				Description: "description",
+			},
+			now: Delta{
+				Date:        "2106-11-12",
+				Name:        "1recipient",
+				Value:       13.45,
+				Currency:    "T",
+				Description: "1description",
+			},
+			want: `
+2006-01-02   description
+	recipient			$-3.45
+	payee
+2106-11-12   1description
+	1recipient			13.45 T
+	payee`,
+		},
+		"payee": {
+			from: `
+2006-01-02  description
+               recipient  $3.45
+               payee
+         `,
+			old: Delta{
+				Date:        "2006-01-02",
+				Name:        "payee",
+				Value:       -3.45,
+				Currency:    "$",
+				Description: "description",
+			},
+			now: Delta{
+				Date:        "2106-11-12",
+				Name:        "1payee",
+				Value:       -13.45,
+				Currency:    "T",
+				Description: "1description",
+			},
+			want: `
+2006-01-02   description
+	payee			$3.45
+	recipient
+2106-11-12   1description
+	1payee			-13.45 T
+	recipient`,
+		},
+		"was set": {
+			from: `
+2006-01-02  description
+               recipient  $3.45
+               payee
+         `,
+			old: Delta{
+				Date:        "2006-01-02",
+				Name:        "recipient",
+				Value:       3.45,
+				Currency:    "$",
+				Description: "description",
+			},
+			now: Delta{
+				Date:        "2106-11-12",
+				Name:        "1recipient",
+				Value:       13.45,
+				Currency:    "T",
+				Description: "1description",
+			},
+			want: `
+2006-01-02   description
+	recipient			$-3.45
+	payee
+2106-11-12   1description
+	1recipient			13.45 T
+	payee`,
+		},
+	}
+
+	for name, d := range cases {
+		c := d
+		t.Run(name, func(t *testing.T) {
+			p := path.Join(t.TempDir(), "dat")
+			if err := os.WriteFile(p, []byte(c.from), os.ModePerm); err != nil {
+				t.Fatal(err)
+			}
+
+			files, err := NewFiles(p)
+			if err != nil {
+				t.Fatal(err)
+			} else if deltas, err := files.Deltas(); err != nil {
+				t.Fatal(err)
+			} else if filtered := deltas.Like(func(d Delta) bool {
+				c.old.Transaction = d.Transaction
+				c.old.Payee = d.Payee
+				return d.equivalent(c.old)
+			}); len(filtered) != 1 {
+				t.Fatalf("input \n\t%s \ndidnt include old \n\t%+v \nin \n\t%+v: \n\t%+v", c.from, c.old, deltas, filtered)
+			}
+
+			if err := files.Amend(c.old, c.now); err != nil {
+				t.Fatal(err)
+			} else if b, err := os.ReadFile(path.Join(path.Dir(p), "inbox.txt")); err != nil {
+				t.Fatal(err)
+			} else if string(b) != c.want {
+				t.Fatalf("expected \n\t%q\nbut got\n\t%q\n\t%s", c.want, b, b)
+			}
+		})
+	}
+}
+
 func TestFileAdd(t *testing.T) {
 	filesAppendDelim = " "
 	payee := "name:3"
@@ -67,7 +221,7 @@ func TestFileAdd(t *testing.T) {
 	for name, d := range cases {
 		c := d
 		t.Run(name, func(t *testing.T) {
-			p := path.Join(t.TempDir(), "input")
+			p := path.Join(t.TempDir(), "inbox.txt")
 			if c.given != nil {
 				if err := os.WriteFile(p, []byte(c.given), os.ModePerm); err != nil {
 					t.Fatal(err)
@@ -97,6 +251,7 @@ func TestFileTestdataMacroWithBPI(t *testing.T) {
 	if err != nil {
 		t.Fatal(err)
 	}
+	t.Log(paths)
 
 	f, err := NewFiles(paths[0], paths[1:]...)
 	if err != nil {
@@ -217,6 +372,10 @@ func TestFileDeltas(t *testing.T) {
 			Value:       -97.92,
 			Currency:    USD,
 			Description: "Electricity / Power Bill TG2PJ-2PLP5",
+			Payee:       true,
+
+			fileName: "",
+			lineNo:   0,
 		},
 		{
 			Date:        "2022-12-12",
@@ -224,6 +383,9 @@ func TestFileDeltas(t *testing.T) {
 			Value:       97.92,
 			Currency:    USD,
 			Description: "Electricity / Power Bill TG2PJ-2PLP5",
+
+			fileName: "",
+			lineNo:   0,
 		},
 		{
 			Date:        "2022-12-12",
@@ -231,6 +393,10 @@ func TestFileDeltas(t *testing.T) {
 			Value:       -1.00,
 			Currency:    USD,
 			Description: "Test pay chase TG32S-BT2FF",
+			Payee:       true,
+
+			fileName: "",
+			lineNo:   0,
 		},
 		{
 			Date:        "2022-12-12",
@@ -238,6 +404,9 @@ func TestFileDeltas(t *testing.T) {
 			Value:       1.00,
 			Currency:    USD,
 			Description: "Test pay chase TG32S-BT2FF",
+
+			fileName: "",
+			lineNo:   0,
 		},
 	}
 
@@ -250,7 +419,8 @@ func TestFileDeltas(t *testing.T) {
 	for name, d := range cases {
 		want := d
 		t.Run(name, func(t *testing.T) {
-			f, err := NewFiles("./testdata/" + name + ".dat")
+			fileName := "./testdata/" + name + ".dat"
+			f, err := NewFiles(fileName)
 			if err != nil {
 				t.Fatal(err)
 			}
@@ -264,13 +434,34 @@ func TestFileDeltas(t *testing.T) {
 				t.Error(len(deltas))
 			}
 			for i := range want {
+				want[i].fileName = fileName
+				deltas[i].lineNo = 0
 				if i >= len(deltas) {
 					break
 				}
-				if want[i] != deltas[i] {
+				if deltas[i].Transaction == "" {
+					t.Error(deltas[i].Transaction)
+				}
+				deltas[i].Transaction = ""
+				if !want[i].equivalent(deltas[i]) {
 					t.Errorf("[%d] \n\twant=%s, \n\t got=%s", i, want[i].Debug(), deltas[i].Debug())
 				}
 			}
 		})
 	}
 }
+
+func TestFilesOfDir(t *testing.T) {
+	d := t.TempDir()
+	files := Files([]string{d, "/dev/null"})
+	if paths := files.paths(); len(paths) != 1 {
+		t.Error(paths)
+	}
+
+	os.WriteFile(path.Join(d, "1"), []byte{}, os.ModePerm)
+	os.Mkdir(path.Join(d, "d2"), os.ModePerm)
+	os.WriteFile(path.Join(d, "d2", "2"), []byte{}, os.ModePerm)
+	if paths := files.paths(); len(paths) != 3 || paths[0] != path.Join(d, "1") || paths[1] != path.Join(d, "d2", "2") {
+		t.Error(paths)
+	}
+}

src/ledger/group.go

@@ -1,6 +1,8 @@
 package ledger
 
-import "regexp"
+import (
+	"regexp"
+)
 
 type Group func(Delta) Delta
 
@@ -17,6 +19,9 @@ func GroupDate(pattern string) Group {
 	p := regexp.MustCompile(pattern)
 	return func(d Delta) Delta {
 		d.Date = p.FindString(d.Date)
+		for i := range d.with {
+			d.with[i].Date = p.FindString(d.with[i].Date)
+		}
 		return d
 	}
 }
@@ -25,6 +30,9 @@ func GroupName(pattern string) Group {
 	p := regexp.MustCompile(pattern)
 	return func(d Delta) Delta {
 		d.Name = p.FindString(d.Name)
+		for i := range d.with {
+			d.with[i].Name = p.FindString(d.with[i].Name)
+		}
 		return d
 	}
 }

src/ledger/like.go

@@ -0,0 +1,95 @@
+package ledger
+
+import (
+	"regexp"
+)
+
+type Like func(Delta) bool
+
+type Likes []Like
+
+func LikeWith(pattern string) Like {
+	l := LikeName(pattern)
+	return func(d Delta) bool {
+		if l(d) {
+			return true
+		}
+		for _, d := range d.with {
+			if l(d) {
+				return true
+			}
+		}
+		return false
+	}
+}
+
+func LikeTransactions(deltas ...Delta) Like {
+	return func(d Delta) bool {
+		for i := range deltas {
+			if deltas[i].Transaction == d.Transaction {
+				return true
+			}
+		}
+		return false
+	}
+}
+
+func LikeTransaction(delta Delta) Like {
+	return LikeTransactions(delta)
+}
+
+func LikeBefore(date string) Like {
+	return func(d Delta) bool {
+		return date >= d.Date
+	}
+}
+
+func LikeAfter(date string) Like {
+	return func(d Delta) bool {
+		return date <= d.Date
+	}
+}
+
+func LikeNotName(pattern string) Like {
+	return func(d Delta) bool {
+		return !like(pattern, d.Name)
+	}
+}
+
+func LikeNot(like Like) Like {
+	return func(d Delta) bool {
+		return !like(d)
+	}
+}
+
+func NotLikeName(pattern string) Like {
+	return LikeNot(LikeName(pattern))
+}
+
+func LikeName(pattern string) Like {
+	return func(d Delta) bool {
+		return like(pattern, d.Name)
+	}
+}
+
+func like(pattern string, other string) bool {
+	return regexp.MustCompile(pattern).MatchString(other)
+}
+
+func (likes Likes) Any(delta Delta) bool {
+	for i := range likes {
+		if likes[i](delta) {
+			return true
+		}
+	}
+	return false
+}
+
+func (likes Likes) All(delta Delta) bool {
+	for i := range likes {
+		if !likes[i](delta) {
+			return false
+		}
+	}
+	return true
+}

src/ledger/like_test.go

@@ -36,3 +36,20 @@ func TestLikesAll(t *testing.T) {
 		t.Error(likes.All(delta))
 	}
 }
+
+func TestLikeWith(t *testing.T) {
+	delta := Delta{
+		Name: "x",
+		with: []Delta{
+			Delta{Name: "y"},
+			Delta{Name: "z"},
+		},
+	}
+
+	if !LikeWith("x")(delta) {
+		t.Error("like with self not caught")
+	}
+	if !LikeWith("z")(delta) {
+		t.Error("like with reverse not caught")
+	}
+}

src/ledger/register.go

@@ -51,6 +51,26 @@ func (register Register) Names() []string {
 	return result
 }
 
+func (register Register) Like(pattern string) Register {
+	result := make(Register)
+	for k, v := range register {
+		if got := v.Like(pattern); len(got) > 0 {
+			result[k] = got
+		}
+	}
+	return result
+}
+
+func (register Register) NotLike(pattern string) Register {
+	result := make(Register)
+	for k, v := range register {
+		if got := v.NotLike(pattern); len(got) > 0 {
+			result[k] = got
+		}
+	}
+	return result
+}
+
 func (register Register) Dates() []string {
 	result := make([]string, 0, len(register))
 	for k := range register {

src/ledger/testdata/bpi.bpi

@@ -0,0 +1 @@
+../../../../../../../Sync/Core/ledger/bpi.dat

src/ledger/testdata/macro.d

@@ -0,0 +1 @@
+../../../../../../../Sync/Core/ledger/eras/2022-/

src/ledger/testdata/macro.dat

@@ -0,0 +1 @@
+../../../../../../../Sync/Core/ledger/eras/2022-/fidelity.76.dat.txt

src/ledger/transaction.go

@@ -0,0 +1,415 @@
+package ledger
+
+import (
+	"bufio"
+	"bytes"
+	"errors"
+	"fmt"
+	"io"
+	"os"
+	"regexp"
+	"slices"
+	"strconv"
+	"strings"
+	"unicode"
+)
+
+type Transaction Deltas
+
+type Transactions []Transaction
+
+func (transactions Transactions) Deltas() Deltas {
+	result := make(Deltas, 0, len(transactions))
+	for _, transaction := range transactions {
+		result = append(result, transaction...)
+	}
+	return result
+}
+
+func (deltas Deltas) Transactions() Transactions {
+	m := make(map[string]Transaction)
+	for _, d := range deltas {
+		m[d.Transaction] = append(m[d.Transaction], d)
+	}
+
+	result := make(Transactions, 0, len(m))
+	for _, v := range m {
+		result = append(result, v)
+	}
+
+	slices.SortFunc(result, func(a, b Transaction) int {
+		if a[0].Date == b[0].Date {
+			if a[0].Description == b[0].Description {
+				return strings.Compare(a[0].Transaction, b[0].Transaction)
+			}
+			return strings.Compare(a[0].Description, b[0].Description)
+		}
+		return strings.Compare(a[0].Date, b[0].Date)
+	})
+
+	return result
+}
+
+func (transactions Transactions) NotLike(like ...Like) Transactions {
+	result := make(Transactions, 0, len(transactions))
+	for _, transaction := range transactions {
+		if matching := (Deltas)(transaction).Like(like...); len(matching) == 0 {
+			result = append(result, transaction)
+		}
+	}
+	return result
+}
+
+func (transactions Transactions) Like(like ...Like) Transactions {
+	result := make(Transactions, 0, len(transactions))
+	for _, transaction := range transactions {
+		if matching := (Deltas)(transaction).Like(like...); len(matching) > 0 {
+			result = append(result, transaction)
+		}
+	}
+	return result
+}
+
+func (transaction Transaction) Payee() string {
+	balances := Deltas(transaction).Balances()
+
+	candidates := []string{}
+
+	for name, balance := range balances {
+		deltas := Deltas(transaction).Like(LikeName(`^` + name + `$`))
+		if len(deltas) != 1 {
+			continue
+		}
+
+		everyoneElse := balances.NotLike(`^` + name + `$`).Group(`^`)[""]
+		matches := true
+		for currency, value := range balance {
+			matches = matches && everyoneElse[currency]*-1 == value
+		}
+		if matches {
+			candidates = append(candidates, name)
+		}
+	}
+	slices.Sort(candidates)
+
+	if len(candidates) == 0 {
+		panic(balances)
+	}
+
+	for _, candidate := range candidates {
+		if strings.HasPrefix(candidate, "Withdrawal") {
+			return candidate
+		}
+	}
+	return candidates[len(candidates)-1]
+}
+
+type transaction struct {
+	date        string
+	description string
+	payee       string
+	recipients  []transactionRecipient
+	name        string
+
+	fileName string
+	lineNo   int
+}
+
+func (t transaction) empty() bool {
+	return fmt.Sprint(t) == fmt.Sprint(transaction{})
+}
+
+type transactionRecipient struct {
+	name     string
+	value    float64
+	currency string
+	isSet    bool
+}
+
+func (t transaction) deltas() Deltas {
+	result := []Delta{}
+	sums := map[string]float64{}
+	for i, recipient := range t.recipients {
+		sums[recipient.currency] += recipient.value
+		result = append(result, newDelta(
+			t.name,
+			true,
+			t.date,
+			t.description,
+			recipient.name,
+			recipient.value,
+			recipient.currency,
+			recipient.isSet,
+			t.fileName,
+			t.lineNo+i,
+		))
+	}
+	for currency, value := range sums {
+		if value == 0 {
+			continue
+		}
+		if t.payee == "" {
+			//return nil, fmt.Errorf("didnt find net zero and no dumping ground payee set: %+v", transaction)
+		} else {
+			result = append(result, newDelta(
+				t.name,
+				false,
+				t.date,
+				t.description,
+				t.payee,
+				-1.0*value,
+				currency,
+				false,
+				t.fileName,
+				t.lineNo,
+			))
+		}
+	}
+
+	for i := range result {
+		for j := range result {
+			if i != j {
+				result[i] = result[i].withWith(result[j])
+			}
+		}
+	}
+
+	return result
+}
+
+func (t transactionRecipient) empty() bool {
+	return t == (transactionRecipient{})
+}
+
+func (files Files) transactions() ([]transaction, error) {
+	result := make([]transaction, 0)
+	for _, path := range files.paths() {
+		some, err := files._transactions(path)
+		if err != nil {
+			return nil, err
+		}
+		result = append(result, some...)
+	}
+	return result, nil
+}
+
+func (files Files) _transactions(file string) ([]transaction, error) {
+	f, err := os.Open(string(file))
+	if os.IsNotExist(err) {
+		return nil, nil
+	}
+	if err != nil {
+		return nil, err
+	}
+	defer f.Close()
+
+	r := bufio.NewReaderSize(f, 2048)
+
+	result := make([]transaction, 0)
+	for {
+		name := fmt.Sprintf("%s/%d", file, len(result))
+		one, err := readTransaction(name, r)
+		if !one.empty() {
+			one.fileName = file
+			one.lineNo = len(result)
+			result = append(result, one)
+		}
+		if err == io.EOF {
+			return result, nil
+		}
+		if err != nil {
+			return result, err
+		}
+	}
+}
+
+func readTransaction(name string, r *bufio.Reader) (transaction, error) {
+	result, err := _readTransaction(name, r)
+	if err != nil && !errors.Is(err, io.EOF) {
+		return result, err
+	}
+	if result.empty() {
+		return result, err
+	}
+	if result.payee != "" && len(result.recipients) < 1 {
+		return result, fmt.Errorf("found a transaction with payee but no recipeints: %+v", result)
+	}
+	if result.payee == "" {
+		if len(result.recipients) < 2 {
+			return result, fmt.Errorf("found a transaction with no payee and less than 2 recipeints: %+v", result)
+		}
+		func() {
+			sumPerRecipient := map[string]float64{}
+			recipients := []string{}
+			for _, recipient := range result.recipients {
+				recipients = append(recipients, recipient.name)
+				sumPerRecipient[recipient.name] += recipient.value
+			}
+			slices.Sort(recipients)
+
+			for _, k := range recipients {
+				n := 0
+				for i := range result.recipients {
+					if result.recipients[i].name == k {
+						n += 1
+					}
+				}
+				if n != 1 {
+					continue
+				}
+
+				v := sumPerRecipient[k]
+				everyoneElse := 0.0
+				for j := range sumPerRecipient {
+					if k != j {
+						everyoneElse += sumPerRecipient[j]
+					}
+				}
+				if -1.0*v == everyoneElse {
+					result.payee = k
+					result.recipients = slices.DeleteFunc(result.recipients, func(recipient transactionRecipient) bool {
+						return recipient.name == k
+					})
+					return
+				}
+			}
+			return
+		}()
+	}
+	return result, err
+}
+
+func _readTransaction(name string, r *bufio.Reader) (transaction, error) {
+	readTransactionLeadingWhitespace(r)
+
+	firstLine, err := readTransactionLine(r)
+	if len(bytes.TrimSpace(firstLine)) == 0 {
+		return transaction{}, err
+	}
+
+	dateDescriptionPattern := regexp.MustCompile(`^([0-9]+-[0-9]+-[0-9]+)\s+(.*)$`)
+	dateDescriptionMatches := dateDescriptionPattern.FindAllSubmatch(firstLine, 4)
+	if len(dateDescriptionMatches) != 1 {
+		return transaction{}, fmt.Errorf("bad first line: %v matches: %q", len(dateDescriptionMatches), firstLine)
+	} else if len(dateDescriptionMatches[0]) != 3 {
+		return transaction{}, fmt.Errorf("bad first line: %v submatches: %q", len(dateDescriptionMatches[0]), firstLine)
+	}
+	result := transaction{
+		date:        string(dateDescriptionMatches[0][1]),
+		description: string(dateDescriptionMatches[0][2]),
+		name:        name,
+	}
+
+	for {
+		name, value, currency, isSet, err := readTransactionName(r)
+		if name != "" {
+			if currency == "" {
+				result.payee = name
+			} else {
+				result.recipients = append(result.recipients, transactionRecipient{
+					name:     name,
+					value:    value,
+					currency: currency,
+					isSet:    isSet,
+				})
+			}
+		}
+		if name == "" || err != nil {
+			return result, err
+		}
+	}
+}
+
+func readTransactionLeadingWhitespace(r *bufio.Reader) {
+	b, err := r.Peek(2048)
+	if err != nil && err != io.EOF {
+		return
+	}
+
+	i := 0
+	for i < len(b) {
+		if len(bytes.TrimSpace(b[:i])) != 0 {
+			break
+		}
+		i++
+	}
+
+	if i > 0 {
+		r.Read(make([]byte, i-1))
+	}
+}
+
+func readTransactionLine(r *bufio.Reader) ([]byte, error) {
+	for {
+		b, err := _readTransactionLine(r)
+		if err != nil || (len(bytes.TrimSpace(b)) > 0 && bytes.TrimSpace(b)[0] != '#') {
+			return b, err
+		}
+	}
+}
+
+func _readTransactionLine(r *bufio.Reader) ([]byte, error) {
+	b, err := r.Peek(2048)
+	if len(b) == 0 {
+		return nil, err
+	}
+
+	endOfLine := len(b)
+	if idx := bytes.Index(b, []byte{'\n'}); idx > -1 {
+		endOfLine = idx
+	}
+
+	b2 := make([]byte, endOfLine)
+	n, err := r.Read(b2)
+	if err == io.EOF {
+		err = nil
+	}
+
+	if check, _ := r.Peek(1); len(check) == 1 && check[0] == '\n' {
+		r.Read(make([]byte, 1))
+	}
+
+	return b2[:n], err
+}
+
+func readTransactionName(r *bufio.Reader) (string, float64, string, bool, error) {
+	line, err := readTransactionLine(r)
+	if err != nil {
+		return "", 0, "", false, err
+	}
+
+	if len(line) > 0 && !unicode.IsSpace(rune(line[0])) {
+		r2 := *r
+		*r = *bufio.NewReader(io.MultiReader(bytes.NewReader(append(line, '\n')), &r2))
+		return "", 0, "", false, nil
+	}
+
+	line = bytes.Split(line, []byte(";"))[0] // comment-free
+	fields := bytes.Fields(line)
+
+	isSet := false
+	if len(fields) > 2 && string(fields[1]) == "=" {
+		isSet = true
+		fields = append(fields[:1], fields[2:]...)
+	}
+
+	switch len(fields) {
+	case 1: // payee
+		return string(fields[0]), 0, "", false, nil
+	case 2: // payee $00.00
+		b := bytes.TrimLeft(fields[1], "$")
+		value, err := strconv.ParseFloat(string(b), 64)
+		if err != nil {
+			return "", 0, "", isSet, fmt.Errorf("failed to parse value from $XX.YY from %q (%q): %w", line, fields[1], err)
+		}
+		return string(fields[0]), value, string(USD), isSet, nil
+	case 3: // payee 00.00 XYZ
+		value, err := strconv.ParseFloat(string(fields[1]), 64)
+		if err != nil {
+			return "", 0, "", false, fmt.Errorf("failed to parse value from XX.YY XYZ from %q (%q): %w", line, fields[1], err)
+		}
+		return string(fields[0]), value, string(fields[2]), isSet, nil
+	default:
+		return "", 0, "", isSet, fmt.Errorf("cannot interpret %q", line)
+	}
+}

src/ledger/transaction_test.go

@@ -0,0 +1,121 @@
+package ledger
+
+import (
+	"bufio"
+	"fmt"
+	"io"
+	"strings"
+	"testing"
+)
+
+func TestTransactionPayee(t *testing.T) {
+	given := Transaction{
+		Delta{Name: "x", Transaction: "a", Value: 9},
+		Delta{Name: "Withdrawal:z", Transaction: "a", Value: -3},
+		Delta{Name: "Withdrawal:z", Transaction: "a", Value: -6},
+	}
+
+	got := given.Payee()
+	if got != "x" {
+		t.Error(got)
+	}
+}
+
+func TestDeltasTransactions(t *testing.T) {
+	given := Deltas{
+		Delta{Date: "2", Name: "x", Transaction: "a"},
+		Delta{Date: "2", Name: "y", Transaction: "a"},
+		Delta{Date: "1", Name: "z", Transaction: "b"},
+	}
+
+	got := given.Transactions()
+	if len(got) != 2 {
+		t.Error(len(got))
+	}
+	if len(got[0]) != 1 {
+		t.Error("first xaction is not earliest date", len(got[0]))
+	}
+	if len(got[1]) != 2 {
+		t.Error("second xaction is not latest date", len(got[1]))
+	}
+}
+
+func TestReadTransaction(t *testing.T) {
+	cases := map[string]struct {
+		input string
+		want  transaction
+		err   error
+	}{
+		"empty": {
+			input: "",
+			want:  transaction{},
+			err:   io.EOF,
+		},
+		"white space": {
+			input: "   ",
+			want:  transaction{},
+			err:   io.EOF,
+		},
+		"verbose": {
+			input: `
+2003-04-05            Reasoning here
+   A:B   $1.00
+   C:D   $-1.00
+         `,
+			want: transaction{
+				date:        "2003-04-05",
+				description: "Reasoning here",
+				payee:       "A:B",
+				recipients: []transactionRecipient{
+					{
+						name:     "C:D",
+						value:    -1.0,
+						currency: "$",
+					},
+				},
+			},
+			err: io.EOF,
+		},
+		"multi send": {
+			input: `
+2003-04-05            Reasoning here
+   A:B   $1.00
+   A:B   $2.00
+   C:D
+         `,
+			want: transaction{
+				date:        "2003-04-05",
+				description: "Reasoning here",
+				payee:       "C:D",
+				recipients: []transactionRecipient{
+					{
+						name:     "A:B",
+						value:    1.0,
+						currency: "$",
+					},
+					{
+						name:     "A:B",
+						value:    2.0,
+						currency: "$",
+					},
+				},
+			},
+			err: io.EOF,
+		},
+	}
+
+	for name, d := range cases {
+		c := d
+		t.Run(name, func(t *testing.T) {
+			r := bufio.NewReader(strings.NewReader(c.input))
+			got, err := readTransaction("", r)
+			if err != c.err {
+				t.Error(err)
+			}
+
+			if fmt.Sprintf("%+v", got) != fmt.Sprintf("%+v", c.want) {
+				t.Errorf("want\n\t%+v, got\n\t%+v", c.want, got)
+			}
+		})
+	}
+}

src/view/chart.go

@@ -0,0 +1,160 @@
+package view
+
+import (
+	"fmt"
+	"io"
+	"slices"
+	"strings"
+
+	"github.com/go-echarts/go-echarts/v2/charts"
+	"github.com/go-echarts/go-echarts/v2/opts"
+)
+
+type Chart interface {
+	AddX(interface{})
+	AddY(string, []int)
+	Render(io.Writer) error
+	Overlap(Chart)
+}
+
+func NewChart(name string) Chart {
+	switch name {
+	case "line":
+		return NewLine()
+	case "bar":
+		return NewBar()
+	case "stack":
+		return NewStack()
+	case "pie":
+		return NewPie()
+	default:
+		panic("bad chart name " + name)
+	}
+}
+
+type Line struct {
+	*charts.Line
+}
+
+func NewLine() Line {
+	return Line{Line: charts.NewLine()}
+}
+
+func (line Line) AddX(v interface{}) {
+	line.SetXAxis(v)
+}
+
+func (line Line) AddY(name string, v []int) {
+	y := make([]opts.LineData, len(v))
+	for i := range y {
+		y[i].Value = v[i]
+	}
+	line.AddSeries(name, y).
+		SetSeriesOptions(charts.WithBarChartOpts(opts.BarChart{
+			Stack: "stackB",
+		}))
+}
+
+func (line Line) Overlap(other Chart) {
+	overlapper, ok := other.(charts.Overlaper)
+	if !ok {
+		panic(fmt.Sprintf("cannot overlap %T", other))
+	}
+	line.Line.Overlap(overlapper)
+}
+
+type Bar struct {
+	*charts.Bar
+}
+
+func NewBar() Bar {
+	return Bar{Bar: charts.NewBar()}
+}
+
+func (bar Bar) AddX(v interface{}) {
+	bar.SetXAxis(v)
+}
+
+func (bar Bar) AddY(name string, v []int) {
+	y := make([]opts.BarData, len(v))
+	for i := range v {
+		y[i].Value = v[i]
+	}
+	bar.AddSeries(name, y)
+}
+
+func (bar Bar) Overlap(other Chart) {
+	overlapper, ok := other.(charts.Overlaper)
+	if !ok {
+		panic(fmt.Sprintf("cannot overlap %T", other))
+	}
+	bar.Bar.Overlap(overlapper)
+}
+
+type Stack struct {
+	Bar
+}
+
+func NewStack() Stack {
+	bar := NewBar()
+	bar.SetSeriesOptions(charts.WithBarChartOpts(opts.BarChart{Stack: "x"}))
+	return Stack{Bar: bar}
+}
+
+func (stack Stack) AddY(name string, v []int) {
+	y := make([]opts.BarData, len(v))
+	for i := range v {
+		y[i].Value = v[i]
+	}
+	stack.AddSeries(name, y).
+		SetSeriesOptions(charts.WithBarChartOpts(opts.BarChart{
+			Stack: "stackA",
+		}))
+}
+
+type Pie struct {
+	*charts.Pie
+	series []opts.PieData
+}
+
+func NewPie() *Pie {
+	return &Pie{Pie: charts.NewPie()}
+}
+
+func (pie *Pie) AddX(v interface{}) {
+}
+
+func (pie *Pie) Render(w io.Writer) error {
+	slices.SortFunc(pie.series, func(a, b opts.PieData) int {
+		return strings.Compare(a.Name, b.Name)
+	})
+	commonPrefixLen := -1
+	for i := 0; i < len(pie.series[0].Name) && i < len(pie.series[len(pie.series)-1].Name); i++ {
+		if pie.series[0].Name[i] != pie.series[len(pie.series)-1].Name[i] {
+			break
+		}
+		commonPrefixLen = i
+	}
+	for i := range pie.series {
+		pie.series[i].Name = pie.series[i].Name[commonPrefixLen+1:]
+	}
+
+	pie.AddSeries("", pie.series)
+	pie.SetGlobalOptions(charts.WithLegendOpts(opts.Legend{
+		Show: false,
+	}))
+	return pie.Pie.Render(w)
+}
+
+func (pie *Pie) AddY(name string, v []int) {
+	for _, v := range v {
+		pie.series = append(pie.series, opts.PieData{
+			Name:  fmt.Sprintf("%s ($%d)", name, v),
+			Value: v,
+		})
+	}
+}
+
+func (pie *Pie) Overlap(other Chart) {
+	panic("nope")
+}

todo.yaml

@@ -1,8 +1,15 @@
 todo:
-- cicd in gitea is hard to get it to build a docker image tho
-- cicd on not gogs,gitness but gitea; registry-app.inhome.blapointe.com:5001/docker
-  stuff
-- html version can accept new transactions for moolah
+- |
+    scale by salaries for proportional house contributions
+    if bel makes 190k and contributes $190
+    equal to z making 140k and contri $140
+    so contrib/sal = %of_me_contributed
+    ... is that fair tho?
+      i think it is--if we both give N%, then 100% of house is covered, so we were hit equally
+- ui can create transactions
+- combine transactions in /transactions.html
+- amend /transactions.html
+- cicd including run
 scheduled: []
 done:
 - todo: balances over time window
@@ -70,3 +77,14 @@ done:
   ts: Fri Oct 27 20:37:12 MDT 2023
 - todo: cicd on not gogs,gitness but gitea
   ts: Fri Oct 27 22:22:04 MDT 2023
+- todo: cicd in gitea is hard to get it to build a docker image tho
+  ts: Sat Oct 28 09:44:55 MDT 2023
+- todo: cicd on not gogs,gitness but gitea; registry-app.inhome.blapointe.com:5001/docker
+    stuff
+  ts: Sat Oct 28 09:44:55 MDT 2023
+- todo: services_docker including gitea cicd
+  ts: Sat Oct 28 10:10:08 MDT 2023
+- todo: go embed cmd/http/public dir?
+  ts: Sat Oct 28 10:40:50 MDT 2023
+- todo: html version can accept new transactions for moolah
+  ts: Sun Oct 29 10:11:50 MDT 2023

vendor/github.com/go-echarts/go-echarts/v2/LICENSE

@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2019~now chenjiandongx
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

vendor/github.com/go-echarts/go-echarts/v2/actions/global.go

@@ -0,0 +1,29 @@
+package actions
+
+import (
+	"math/rand"
+	"time"
+)
+
+func init() {
+	rand.Seed(time.Now().UnixNano())
+}
+
+// Type kind of dispatch action
+type Type string
+
+// Areas means select-boxes. Multi-boxes can be specified.
+// If Areas is empty, all of the select-boxes will be deleted.
+// The first area.
+type Areas struct {
+
+	//BrushType Optional: 'polygon', 'rect', 'lineX', 'lineY'
+	BrushType string `json:"brushType,omitempty"`
+
+	// CoordRange Only for "coordinate system area", define the area with the
+	// coordinates.
+	CoordRange []string `json:"coordRange,omitempty"`
+
+	// XAxisIndex Assigns which of the xAxisIndex can use Area selecting.
+	XAxisIndex interface{} `json:"xAxisIndex,omitempty"`
+}

vendor/github.com/go-echarts/go-echarts/v2/charts/bar.go

@@ -0,0 +1,63 @@
+package charts
+
+import (
+	"github.com/go-echarts/go-echarts/v2/opts"
+	"github.com/go-echarts/go-echarts/v2/render"
+	"github.com/go-echarts/go-echarts/v2/types"
+)
+
+// Bar represents a bar chart.
+type Bar struct {
+	RectChart
+
+	isXYReversal bool
+}
+
+// Type returns the chart type.
+func (*Bar) Type() string { return types.ChartBar }
+
+// NewBar creates a new bar chart instance.
+func NewBar() *Bar {
+	c := &Bar{}
+	c.initBaseConfiguration()
+	c.Renderer = render.NewChartRender(c, c.Validate)
+	c.hasXYAxis = true
+	return c
+}
+
+// EnablePolarType enables the polar bar.
+func (c *Bar) EnablePolarType() *Bar {
+	c.hasXYAxis = false
+	c.hasPolar = true
+	return c
+}
+
+// SetXAxis sets the X axis.
+func (c *Bar) SetXAxis(x interface{}) *Bar {
+	c.xAxisData = x
+	return c
+}
+
+// AddSeries adds the new series.
+func (c *Bar) AddSeries(name string, data []opts.BarData, options ...SeriesOpts) *Bar {
+	series := SingleSeries{Name: name, Type: types.ChartBar, Data: data}
+	series.ConfigureSeriesOpts(options...)
+	c.MultiSeries = append(c.MultiSeries, series)
+	return c
+}
+
+// XYReversal checks if X axis and Y axis are reversed.
+func (c *Bar) XYReversal() *Bar {
+	c.isXYReversal = true
+	return c
+}
+
+// Validate validates the given configuration.
+func (c *Bar) Validate() {
+	c.XAxisList[0].Data = c.xAxisData
+	if c.isXYReversal {
+		c.YAxisList[0].Data = c.xAxisData
+		c.XAxisList[0].Data = nil
+	}
+	c.Assets.Validate(c.AssetsHost)
+}

vendor/github.com/go-echarts/go-echarts/v2/charts/bar3d.go

@@ -0,0 +1,30 @@
+package charts
+
+import (
+	"github.com/go-echarts/go-echarts/v2/opts"
+	"github.com/go-echarts/go-echarts/v2/render"
+	"github.com/go-echarts/go-echarts/v2/types"
+)
+
+// Bar3D represents a 3D bar chart.
+type Bar3D struct {
+	Chart3D
+}
+
+// Type returns the chart type.
+func (*Bar3D) Type() string { return types.ChartBar3D }
+
+// NewBar3D creates a new 3D bar chart.
+func NewBar3D() *Bar3D {
+	c := &Bar3D{}
+	c.initBaseConfiguration()
+	c.Renderer = render.NewChartRender(c, c.Validate)
+	c.initChart3D()
+	return c
+}
+
+// AddSeries adds the new series.
+func (c *Bar3D) AddSeries(name string, data []opts.Chart3DData, options ...SeriesOpts) *Bar3D {
+	c.addSeries(types.ChartBar3D, name, data, options...)
+	return c
+}

vendor/github.com/go-echarts/go-echarts/v2/charts/base.go

@@ -0,0 +1,430 @@
+package charts
+
+import (
+	"bytes"
+	"encoding/json"
+	"html/template"
+
+	"github.com/go-echarts/go-echarts/v2/actions"
+	"github.com/go-echarts/go-echarts/v2/datasets"
+	"github.com/go-echarts/go-echarts/v2/opts"
+	"github.com/go-echarts/go-echarts/v2/render"
+)
+
+// GlobalOpts sets the Global options for charts.
+type GlobalOpts func(bc *BaseConfiguration)
+
+// GlobalActions sets the Global actions for charts
+type GlobalActions func(ba *BaseActions)
+
+// BaseConfiguration represents an option set needed by all chart types.
+type BaseConfiguration struct {
+	opts.Legend       `json:"legend"`
+	opts.Tooltip      `json:"tooltip"`
+	opts.Toolbox      `json:"toolbox"`
+	opts.Title        `json:"title"`
+	opts.Polar        `json:"polar"`
+	opts.AngleAxis    `json:"angleAxis"`
+	opts.RadiusAxis   `json:"radiusAxis"`
+	opts.Brush        `json:"brush"`
+	*opts.AxisPointer `json:"axisPointer"`
+
+	render.Renderer        `json:"-"`
+	opts.Initialization    `json:"-"`
+	opts.Assets            `json:"-"`
+	opts.RadarComponent    `json:"-"`
+	opts.GeoComponent      `json:"-"`
+	opts.ParallelComponent `json:"-"`
+	opts.JSFunctions       `json:"-"`
+	opts.SingleAxis        `json:"-"`
+
+	MultiSeries
+	XYAxis
+
+	opts.XAxis3D
+	opts.YAxis3D
+	opts.ZAxis3D
+	opts.Grid3D
+	opts.Grid
+
+	legends []string
+	// Colors is the color list of palette.
+	// If no color is set in series, the colors would be adopted sequentially and circularly
+	// from this list as the colors of series.
+	Colors      []string
+	appendColor []string // append customize color to the Colors(reverse order)
+
+	// Animation whether enable the animation, default true
+	Animation bool `json:"animation" default:"true"`
+
+	// Array of datasets, managed by AddDataset()
+	DatasetList []opts.Dataset `json:"dataset,omitempty"`
+
+	DataZoomList  []opts.DataZoom  `json:"datazoom,omitempty"`
+	VisualMapList []opts.VisualMap `json:"visualmap,omitempty"`
+
+	// ParallelAxisList represents the component list which is the coordinate axis for parallel coordinate.
+	ParallelAxisList []opts.ParallelAxis
+
+	has3DAxis     bool
+	hasXYAxis     bool
+	hasGeo        bool
+	hasRadar      bool
+	hasParallel   bool
+	hasSingleAxis bool
+	hasPolar      bool
+	hasBrush      bool
+
+	GridList []opts.Grid `json:"grid,omitempty"`
+}
+
+// BaseActions represents a dispatchAction set needed by all chart types.
+type BaseActions struct {
+	actions.Type  `json:"type,omitempty"`
+	actions.Areas `json:"areas,omitempty"`
+}
+
+// JSON wraps all the options to a map so that it could be used in the base template
+//
+// Get data in bytes
+// bs, _ : = json.Marshal(bar.JSON())
+func (bc *BaseConfiguration) JSON() map[string]interface{} {
+	return bc.json()
+}
+
+// JSONNotEscaped works like method JSON, but it returns a marshaled object whose characters will not be escaped in the template
+func (bc *BaseConfiguration) JSONNotEscaped() template.HTML {
+	obj := bc.json()
+	buff := bytes.NewBufferString("")
+	enc := json.NewEncoder(buff)
+	enc.SetEscapeHTML(false)
+	enc.Encode(obj)
+
+	return template.HTML(buff.String())
+}
+
+// JSONNotEscapedAction works like method JSON, but it returns a marshaled object whose characters will not be escaped in the template
+func (ba *BaseActions) JSONNotEscapedAction() template.HTML {
+	obj := ba.json()
+	buff := bytes.NewBufferString("")
+	enc := json.NewEncoder(buff)
+	enc.SetEscapeHTML(false)
+	enc.Encode(obj)
+
+	return template.HTML(buff.String())
+}
+
+func (bc *BaseConfiguration) json() map[string]interface{} {
+	obj := map[string]interface{}{
+		"title":     bc.Title,
+		"legend":    bc.Legend,
+		"animation": bc.Animation,
+		"tooltip":   bc.Tooltip,
+		"series":    bc.MultiSeries,
+	}
+	// if only one item, use it directly instead of an Array
+	if len(bc.DatasetList) == 1 {
+		obj["dataset"] = bc.DatasetList[0]
+	} else if len(bc.DatasetList) > 1 {
+		obj["dataset"] = bc.DatasetList
+
+	}
+	if bc.AxisPointer != nil {
+		obj["axisPointer"] = bc.AxisPointer
+	}
+
+	if bc.hasPolar {
+		obj["polar"] = bc.Polar
+		obj["angleAxis"] = bc.AngleAxis
+		obj["radiusAxis"] = bc.RadiusAxis
+	}
+
+	if bc.hasGeo {
+		obj["geo"] = bc.GeoComponent
+	}
+
+	if bc.hasRadar {
+		obj["radar"] = bc.RadarComponent
+	}
+
+	if bc.hasParallel {
+		obj["parallel"] = bc.ParallelComponent
+		obj["parallelAxis"] = bc.ParallelAxisList
+	}
+
+	if bc.hasSingleAxis {
+		obj["singleAxis"] = bc.SingleAxis
+	}
+
+	if bc.Toolbox.Show {
+		obj["toolbox"] = bc.Toolbox
+	}
+
+	if len(bc.DataZoomList) > 0 {
+		obj["dataZoom"] = bc.DataZoomList
+	}
+
+	if len(bc.VisualMapList) > 0 {
+		obj["visualMap"] = bc.VisualMapList
+	}
+
+	if bc.hasXYAxis {
+		obj["xAxis"] = bc.XAxisList
+		obj["yAxis"] = bc.YAxisList
+	}
+
+	if bc.has3DAxis {
+		obj["xAxis3D"] = bc.XAxis3D
+		obj["yAxis3D"] = bc.YAxis3D
+		obj["zAxis3D"] = bc.ZAxis3D
+		obj["grid3D"] = bc.Grid3D
+	}
+
+	if bc.Theme == "white" {
+		obj["color"] = bc.Colors
+	}
+
+	if bc.BackgroundColor != "" {
+		obj["backgroundColor"] = bc.BackgroundColor
+	}
+
+	if len(bc.GridList) > 0 {
+		obj["grid"] = bc.GridList
+	}
+
+	if bc.hasBrush {
+		obj["brush"] = bc.Brush
+	}
+
+	return obj
+}
+
+// GetAssets returns the Assets options.
+func (bc *BaseConfiguration) GetAssets() opts.Assets {
+	return bc.Assets
+}
+
+// AddDataset adds a Dataset to this chart
+func (bc *BaseConfiguration) AddDataset(dataset ...opts.Dataset) {
+	bc.DatasetList = append(bc.DatasetList, dataset...)
+}
+
+// FillDefaultValues fill default values for chart options.
+func (bc *BaseConfiguration) FillDefaultValues() {
+	opts.SetDefaultValue(bc)
+}
+
+func (bc *BaseConfiguration) initBaseConfiguration() {
+	bc.initSeriesColors()
+	bc.InitAssets()
+	bc.initXYAxis()
+	bc.Initialization.Validate()
+	bc.FillDefaultValues()
+}
+
+func (bc *BaseConfiguration) initSeriesColors() {
+	bc.Colors = []string{
+		"#5470c6", "#91cc75", "#fac858", "#ee6666", "#73c0de",
+		"#3ba272", "#fc8452", "#9a60b4", "#ea7ccc",
+	}
+}
+
+func (bc *BaseConfiguration) insertSeriesColors(colors []string) {
+	reversed := reverseSlice(colors)
+	for i := 0; i < len(reversed); i++ {
+		bc.Colors = append(bc.Colors, "")
+		copy(bc.Colors[1:], bc.Colors[0:])
+		bc.Colors[0] = reversed[i]
+	}
+}
+
+func (bc *BaseConfiguration) setBaseGlobalOptions(opts ...GlobalOpts) {
+	for _, opt := range opts {
+		opt(bc)
+	}
+}
+
+func (ba *BaseActions) setBaseGlobalActions(opts ...GlobalActions) {
+	for _, opt := range opts {
+		opt(ba)
+	}
+}
+
+func (ba *BaseActions) json() map[string]interface{} {
+	obj := map[string]interface{}{
+		"type":  ba.Type,
+		"areas": ba.Areas,
+	}
+	return obj
+}
+
+// WithAreas sets the areas of the action
+func WithAreas(act actions.Areas) GlobalActions {
+	return func(ba *BaseActions) {
+		ba.Areas = act
+	}
+}
+
+// WithType sets the type of the action
+func WithType(act actions.Type) GlobalActions {
+	return func(ba *BaseActions) {
+		ba.Type = act
+	}
+}
+
+// WithAngleAxisOps sets the angle of the axis.
+func WithAngleAxisOps(opt opts.AngleAxis) GlobalOpts {
+	return func(bc *BaseConfiguration) {
+		bc.AngleAxis = opt
+	}
+}
+
+// WithRadiusAxisOps sets the radius of the axis.
+func WithRadiusAxisOps(opt opts.RadiusAxis) GlobalOpts {
+	return func(bc *BaseConfiguration) {
+		bc.RadiusAxis = opt
+	}
+}
+
+// WithBrush sets the Brush.
+func WithBrush(opt opts.Brush) GlobalOpts {
+	return func(bc *BaseConfiguration) {
+		bc.hasBrush = true
+		bc.Brush = opt
+	}
+}
+
+// WithPolarOps sets the polar.
+func WithPolarOps(opt opts.Polar) GlobalOpts {
+	return func(bc *BaseConfiguration) {
+		bc.Polar = opt
+	}
+}
+
+// WithTitleOpts sets the title.
+func WithTitleOpts(opt opts.Title) GlobalOpts {
+	return func(bc *BaseConfiguration) {
+		bc.Title = opt
+	}
+}
+
+// WithAnimation enable or disable the animation.
+func WithAnimation() GlobalOpts {
+	return func(bc *BaseConfiguration) {
+		bc.Animation = false
+	}
+}
+
+// WithToolboxOpts sets the toolbox.
+func WithToolboxOpts(opt opts.Toolbox) GlobalOpts {
+	return func(bc *BaseConfiguration) {
+		bc.Toolbox = opt
+	}
+}
+
+// WithSingleAxisOpts sets the single axis.
+func WithSingleAxisOpts(opt opts.SingleAxis) GlobalOpts {
+	return func(bc *BaseConfiguration) {
+		bc.SingleAxis = opt
+	}
+}
+
+// WithTooltipOpts sets the tooltip.
+func WithTooltipOpts(opt opts.Tooltip) GlobalOpts {
+	return func(bc *BaseConfiguration) {
+		bc.Tooltip = opt
+	}
+}
+
+// WithLegendOpts sets the legend.
+func WithLegendOpts(opt opts.Legend) GlobalOpts {
+	return func(bc *BaseConfiguration) {
+		bc.Legend = opt
+	}
+}
+
+// WithInitializationOpts sets the initialization.
+func WithInitializationOpts(opt opts.Initialization) GlobalOpts {
+	return func(bc *BaseConfiguration) {
+		bc.Initialization = opt
+		if bc.Initialization.Theme != "" &&
+			bc.Initialization.Theme != "white" &&
+			bc.Initialization.Theme != "dark" {
+			bc.JSAssets.Add("themes/" + opt.Theme + ".js")
+		}
+		bc.Initialization.Validate()
+	}
+}
+
+// WithDataZoomOpts sets the list of the zoom data.
+func WithDataZoomOpts(opt ...opts.DataZoom) GlobalOpts {
+	return func(bc *BaseConfiguration) {
+		bc.DataZoomList = append(bc.DataZoomList, opt...)
+	}
+}
+
+// WithVisualMapOpts sets the List of the visual map.
+func WithVisualMapOpts(opt ...opts.VisualMap) GlobalOpts {
+	return func(bc *BaseConfiguration) {
+		bc.VisualMapList = append(bc.VisualMapList, opt...)
+	}
+}
+
+// WithRadarComponentOpts sets the component of the radar.
+func WithRadarComponentOpts(opt opts.RadarComponent) GlobalOpts {
+	return func(bc *BaseConfiguration) {
+		bc.RadarComponent = opt
+	}
+}
+
+// WithGeoComponentOpts sets the geo component.
+func WithGeoComponentOpts(opt opts.GeoComponent) GlobalOpts {
+	return func(bc *BaseConfiguration) {
+		bc.GeoComponent = opt
+		bc.JSAssets.Add("maps/" + datasets.MapFileNames[opt.Map] + ".js")
+	}
+
+}
+
+// WithParallelComponentOpts sets the parallel component.
+func WithParallelComponentOpts(opt opts.ParallelComponent) GlobalOpts {
+	return func(bc *BaseConfiguration) {
+		bc.ParallelComponent = opt
+	}
+}
+
+// WithParallelAxisList sets the list of the parallel axis.
+func WithParallelAxisList(opt []opts.ParallelAxis) GlobalOpts {
+	return func(bc *BaseConfiguration) {
+		bc.ParallelAxisList = opt
+	}
+}
+
+// WithColorsOpts sets the color.
+func WithColorsOpts(opt opts.Colors) GlobalOpts {
+	return func(bc *BaseConfiguration) {
+		bc.insertSeriesColors(opt)
+	}
+}
+
+// reverseSlice reverses the string slice.
+func reverseSlice(s []string) []string {
+	for i, j := 0, len(s)-1; i < j; i, j = i+1, j-1 {
+		s[i], s[j] = s[j], s[i]
+	}
+	return s
+}
+
+// WithGridOpts sets the List of the grid.
+func WithGridOpts(opt ...opts.Grid) GlobalOpts {
+	return func(bc *BaseConfiguration) {
+		bc.GridList = append(bc.GridList, opt...)
+	}
+}
+
+// WithAxisPointerOpts sets the axis pointer.
+func WithAxisPointerOpts(opt *opts.AxisPointer) GlobalOpts {
+	return func(bc *BaseConfiguration) {
+		bc.AxisPointer = opt
+	}
+}

vendor/github.com/go-echarts/go-echarts/v2/charts/boxplot.go

@@ -0,0 +1,44 @@
+package charts
+
+import (
+	"github.com/go-echarts/go-echarts/v2/opts"
+	"github.com/go-echarts/go-echarts/v2/render"
+	"github.com/go-echarts/go-echarts/v2/types"
+)
+
+// BoxPlot represents a boxplot chart.
+type BoxPlot struct {
+	RectChart
+}
+
+// Type returns the chart type.
+func (*BoxPlot) Type() string { return types.ChartBoxPlot }
+
+// NewBoxPlot creates a new boxplot chart.
+func NewBoxPlot() *BoxPlot {
+	c := &BoxPlot{}
+	c.initBaseConfiguration()
+	c.Renderer = render.NewChartRender(c, c.Validate)
+	c.hasXYAxis = true
+	return c
+}
+
+// SetXAxis adds the X axis.
+func (c *BoxPlot) SetXAxis(x interface{}) *BoxPlot {
+	c.xAxisData = x
+	return c
+}
+
+// AddSeries adds the new series.
+func (c *BoxPlot) AddSeries(name string, data []opts.BoxPlotData, options ...SeriesOpts) *BoxPlot {
+	series := SingleSeries{Name: name, Type: types.ChartBoxPlot, Data: data}
+	series.ConfigureSeriesOpts(options...)
+	c.MultiSeries = append(c.MultiSeries, series)
+	return c
+}
+
+// Validate validates the given configuration.
+func (c *BoxPlot) Validate() {
+	c.XAxisList[0].Data = c.xAxisData
+	c.Assets.Validate(c.AssetsHost)
+}

vendor/github.com/go-echarts/go-echarts/v2/charts/chart3d.go

@@ -0,0 +1,67 @@
+package charts
+
+import (
+	"github.com/go-echarts/go-echarts/v2/opts"
+	"github.com/go-echarts/go-echarts/v2/types"
+)
+
+// Chart3D is a chart in 3D coordinates.
+type Chart3D struct {
+	BaseConfiguration
+}
+
+// WithXAxis3DOpts sets the X axis of the Chart3D instance.
+func WithXAxis3DOpts(opt opts.XAxis3D) GlobalOpts {
+	return func(bc *BaseConfiguration) {
+		bc.XAxis3D = opt
+	}
+}
+
+// WithYAxis3DOpts sets the Y axis of the Chart3D instance.
+func WithYAxis3DOpts(opt opts.YAxis3D) GlobalOpts {
+	return func(bc *BaseConfiguration) {
+		bc.YAxis3D = opt
+	}
+}
+
+// WithZAxis3DOpts sets the Z axis of the Chart3D instance.
+func WithZAxis3DOpts(opt opts.ZAxis3D) GlobalOpts {
+	return func(bc *BaseConfiguration) {
+		bc.ZAxis3D = opt
+	}
+}
+
+// WithGrid3DOpts sets the grid of the Chart3D instance.
+func WithGrid3DOpts(opt opts.Grid3D) GlobalOpts {
+	return func(bc *BaseConfiguration) {
+		bc.Grid3D = opt
+	}
+}
+
+func (c *Chart3D) initChart3D() {
+	c.JSAssets.Add(opts.CompatibleEchartsJS)
+	c.JSAssets.Add("echarts-gl.min.js")
+	c.has3DAxis = true
+}
+
+func (c *Chart3D) addSeries(chartType, name string, data []opts.Chart3DData, options ...SeriesOpts) {
+	series := SingleSeries{
+		Name:        name,
+		Type:        chartType,
+		Data:        data,
+		CoordSystem: types.ChartCartesian3D,
+	}
+	series.ConfigureSeriesOpts(options...)
+	c.MultiSeries = append(c.MultiSeries, series)
+}
+
+// SetGlobalOptions sets options for the Chart3D instance.
+func (c *Chart3D) SetGlobalOptions(options ...GlobalOpts) *Chart3D {
+	c.BaseConfiguration.setBaseGlobalOptions(options...)
+	return c
+}
+
+// Validate validates the given configuration.
+func (c *Chart3D) Validate() {
+	c.Assets.Validate(c.AssetsHost)
+}

vendor/github.com/go-echarts/go-echarts/v2/charts/effectscatter.go

@@ -0,0 +1,44 @@
+package charts
+
+import (
+	"github.com/go-echarts/go-echarts/v2/opts"
+	"github.com/go-echarts/go-echarts/v2/render"
+	"github.com/go-echarts/go-echarts/v2/types"
+)
+
+// EffectScatter represents an effect scatter chart.
+type EffectScatter struct {
+	RectChart
+}
+
+// Type returns the chart type.
+func (*EffectScatter) Type() string { return types.ChartEffectScatter }
+
+// NewEffectScatter creates a new effect scatter chart.
+func NewEffectScatter() *EffectScatter {
+	c := &EffectScatter{}
+	c.initBaseConfiguration()
+	c.Renderer = render.NewChartRender(c, c.Validate)
+	c.hasXYAxis = true
+	return c
+}
+
+// SetXAxis adds the X axis.
+func (c *EffectScatter) SetXAxis(x interface{}) *EffectScatter {
+	c.xAxisData = x
+	return c
+}
+
+// AddSeries adds the Y axis.
+func (c *EffectScatter) AddSeries(name string, data []opts.EffectScatterData, options ...SeriesOpts) *EffectScatter {
+	series := SingleSeries{Name: name, Type: types.ChartEffectScatter, Data: data}
+	series.ConfigureSeriesOpts(options...)
+	c.MultiSeries = append(c.MultiSeries, series)
+	return c
+}
+
+// Validate validates the given configuration.
+func (c *EffectScatter) Validate() {
+	c.XAxisList[0].Data = c.xAxisData
+	c.Assets.Validate(c.AssetsHost)
+}

vendor/github.com/go-echarts/go-echarts/v2/charts/funnel.go

@@ -0,0 +1,49 @@
+package charts
+
+import (
+	"github.com/go-echarts/go-echarts/v2/opts"
+	"github.com/go-echarts/go-echarts/v2/render"
+	"github.com/go-echarts/go-echarts/v2/types"
+)
+
+// Funnel represents a funnel chart.
+type Funnel struct {
+	BaseConfiguration
+	BaseActions
+}
+
+// Type returns the chart type.
+func (*Funnel) Type() string { return types.ChartFunnel }
+
+// NewFunnel creates a new funnel chart.
+func NewFunnel() *Funnel {
+	c := &Funnel{}
+	c.initBaseConfiguration()
+	c.Renderer = render.NewChartRender(c, c.Validate)
+	return c
+}
+
+// AddSeries adds new data sets.
+func (c *Funnel) AddSeries(name string, data []opts.FunnelData, options ...SeriesOpts) *Funnel {
+	series := SingleSeries{Name: name, Type: types.ChartFunnel, Data: data}
+	series.ConfigureSeriesOpts(options...)
+	c.MultiSeries = append(c.MultiSeries, series)
+	return c
+}
+
+// SetGlobalOptions sets options for the Funnel instance.
+func (c *Funnel) SetGlobalOptions(options ...GlobalOpts) *Funnel {
+	c.BaseConfiguration.setBaseGlobalOptions(options...)
+	return c
+}
+
+// SetDispatchActions sets actions for the Gauge instance.
+func (c *Funnel) SetDispatchActions(actions ...GlobalActions) *Funnel {
+	c.BaseActions.setBaseGlobalActions(actions...)
+	return c
+}
+
+// Validate validates the given configuration.
+func (c *Funnel) Validate() {
+	c.Assets.Validate(c.AssetsHost)
+}

vendor/github.com/go-echarts/go-echarts/v2/charts/gauge.go

@@ -0,0 +1,49 @@
+package charts
+
+import (
+	"github.com/go-echarts/go-echarts/v2/opts"
+	"github.com/go-echarts/go-echarts/v2/render"
+	"github.com/go-echarts/go-echarts/v2/types"
+)
+
+// Gauge represents a gauge chart.
+type Gauge struct {
+	BaseConfiguration
+	BaseActions
+}
+
+// Type returns the chart type.
+func (*Gauge) Type() string { return types.ChartGauge }
+
+// NewGauge creates a new gauge chart.
+func NewGauge() *Gauge {
+	c := &Gauge{}
+	c.initBaseConfiguration()
+	c.Renderer = render.NewChartRender(c, c.Validate)
+	return c
+}
+
+// AddSeries adds new data sets.
+func (c *Gauge) AddSeries(name string, data []opts.GaugeData, options ...SeriesOpts) *Gauge {
+	series := SingleSeries{Name: name, Type: types.ChartGauge, Data: data}
+	series.ConfigureSeriesOpts(options...)
+	c.MultiSeries = append(c.MultiSeries, series)
+	return c
+}
+
+// SetGlobalOptions sets options for the Gauge instance.
+func (c *Gauge) SetGlobalOptions(options ...GlobalOpts) *Gauge {
+	c.BaseConfiguration.setBaseGlobalOptions(options...)
+	return c
+}
+
+// SetDispatchActions sets actions for the Gauge instance.
+func (c *Gauge) SetDispatchActions(actions ...GlobalActions) *Gauge {
+	c.BaseActions.setBaseGlobalActions(actions...)
+	return c
+}
+
+// Validate validates the given configuration.
+func (c *Gauge) Validate() {
+	c.Assets.Validate(c.AssetsHost)
+}

vendor/github.com/go-echarts/go-echarts/v2/charts/geo.go

@@ -0,0 +1,75 @@
+package charts
+
+import (
+	"log"
+
+	"github.com/go-echarts/go-echarts/v2/datasets"
+	"github.com/go-echarts/go-echarts/v2/opts"
+	"github.com/go-echarts/go-echarts/v2/render"
+	"github.com/go-echarts/go-echarts/v2/types"
+)
+
+// Geo represents a geo chart.
+type Geo struct {
+	BaseConfiguration
+	BaseActions
+}
+
+// Type returns the chart type.
+func (*Geo) Type() string { return types.ChartGeo }
+
+var geoFormatter = `function (params) {
+		return params.name + ' : ' + params.value[2];
+}`
+
+// NewGeo creates a new geo chart.
+func NewGeo() *Geo {
+	c := &Geo{}
+	c.initBaseConfiguration()
+	c.Renderer = render.NewChartRender(c, c.Validate)
+	c.hasGeo = true
+	return c
+}
+
+// AddSeries adds new data sets.
+// geoType options:
+// * types.ChartScatter
+// * types.ChartEffectScatter
+// * types.ChartHeatMap
+func (c *Geo) AddSeries(name, geoType string, data []opts.GeoData, options ...SeriesOpts) *Geo {
+	series := SingleSeries{Name: name, Type: geoType, Data: data, CoordSystem: types.ChartGeo}
+	series.ConfigureSeriesOpts(options...)
+	c.MultiSeries = append(c.MultiSeries, series)
+	return c
+}
+
+func (c *Geo) extendValue(region string, v float32) []float32 {
+	res := make([]float32, 0)
+	tv := datasets.Coordinates[region]
+	if tv == [2]float32{0, 0} {
+		log.Printf("goecharts: No coordinate is specified for %s\n", region)
+	} else {
+		res = append(tv[:], v)
+	}
+	return res
+}
+
+// SetGlobalOptions sets options for the Geo instance.
+func (c *Geo) SetGlobalOptions(options ...GlobalOpts) *Geo {
+	c.BaseConfiguration.setBaseGlobalOptions(options...)
+	return c
+}
+
+// SetDispatchActions sets actions for the Geo instance.
+func (c *Geo) SetDispatchActions(actions ...GlobalActions) *Geo {
+	c.BaseActions.setBaseGlobalActions(actions...)
+	return c
+}
+
+// Validate validates the given configuration.
+func (c *Geo) Validate() {
+	if c.Tooltip.Formatter == "" {
+		c.Tooltip.Formatter = opts.FuncOpts(geoFormatter)
+	}
+	c.Assets.Validate(c.AssetsHost)
+}

vendor/github.com/go-echarts/go-echarts/v2/charts/graph.go

@@ -0,0 +1,55 @@
+package charts
+
+import (
+	"github.com/go-echarts/go-echarts/v2/opts"
+	"github.com/go-echarts/go-echarts/v2/render"
+	"github.com/go-echarts/go-echarts/v2/types"
+)
+
+// Graph represents a graph chart.
+type Graph struct {
+	BaseConfiguration
+	BaseActions
+}
+
+// Type returns the chart type.
+func (*Graph) Type() string { return types.ChartGraph }
+
+// NewGraph creates a new graph chart.
+func NewGraph() *Graph {
+	chart := new(Graph)
+	chart.initBaseConfiguration()
+	chart.Renderer = render.NewChartRender(chart, chart.Validate)
+	return chart
+}
+
+// AddSeries adds the new series.
+func (c *Graph) AddSeries(name string, nodes []opts.GraphNode, links []opts.GraphLink, options ...SeriesOpts) *Graph {
+	series := SingleSeries{Name: name, Type: types.ChartGraph, Links: links, Data: nodes}
+	series.ConfigureSeriesOpts(options...)
+	c.MultiSeries = append(c.MultiSeries, series)
+	return c
+}
+
+// SetGlobalOptions sets options for the Graph instance.
+func (c *Graph) SetGlobalOptions(options ...GlobalOpts) *Graph {
+	c.BaseConfiguration.setBaseGlobalOptions(options...)
+	return c
+}
+
+// SetDispatchActions sets actions for the Graph instance.
+func (c *Graph) SetDispatchActions(actions ...GlobalActions) *Graph {
+	c.BaseActions.setBaseGlobalActions(actions...)
+	return c
+}
+
+// Validate validates the given configuration.
+func (c *Graph) Validate() {
+	// If there is no layout setting, default layout is set to "force".
+	for i := 0; i < len(c.MultiSeries); i++ {
+		if c.MultiSeries[i].Layout == "" {
+			c.MultiSeries[i].Layout = "force"
+		}
+	}
+	c.Assets.Validate(c.AssetsHost)
+}

vendor/github.com/go-echarts/go-echarts/v2/charts/heatmap.go

@@ -0,0 +1,43 @@
+package charts
+
+import (
+	"github.com/go-echarts/go-echarts/v2/opts"
+	"github.com/go-echarts/go-echarts/v2/render"
+	"github.com/go-echarts/go-echarts/v2/types"
+)
+
+// HeatMap represents a heatmap chart.
+type HeatMap struct {
+	RectChart
+}
+
+// Type returns the chart type.
+func (*HeatMap) Type() string { return types.ChartHeatMap }
+
+// NewHeatMap creates a new heatmap chart.
+func NewHeatMap() *HeatMap {
+	c := &HeatMap{}
+	c.initBaseConfiguration()
+	c.Renderer = render.NewChartRender(c, c.Validate)
+	c.hasXYAxis = true
+	return c
+}
+
+// SetXAxis adds the X axis.
+func (c *HeatMap) SetXAxis(x interface{}) *HeatMap {
+	c.xAxisData = x
+	return c
+}
+
+// AddSeries adds the new series.
+func (c *HeatMap) AddSeries(name string, data []opts.HeatMapData, options ...SeriesOpts) *HeatMap {
+	series := SingleSeries{Name: name, Type: types.ChartHeatMap, Data: data}
+	series.ConfigureSeriesOpts(options...)
+	c.MultiSeries = append(c.MultiSeries, series)
+	return c
+}
+
+// Validate validates the given configuration.
+func (c *HeatMap) Validate() {
+	c.Assets.Validate(c.AssetsHost)
+}

vendor/github.com/go-echarts/go-echarts/v2/charts/kline.go

@@ -0,0 +1,44 @@
+package charts
+
+import (
+	"github.com/go-echarts/go-echarts/v2/opts"
+	"github.com/go-echarts/go-echarts/v2/render"
+	"github.com/go-echarts/go-echarts/v2/types"
+)
+
+// Kline represents a kline chart.
+type Kline struct {
+	RectChart
+}
+
+// Type returns the chart type.
+func (*Kline) Type() string { return types.ChartKline }
+
+// NewKLine creates a new kline chart.
+func NewKLine() *Kline {
+	c := &Kline{}
+	c.initBaseConfiguration()
+	c.Renderer = render.NewChartRender(c, c.Validate)
+	c.hasXYAxis = true
+	return c
+}
+
+// SetXAxis adds the X axis.
+func (c *Kline) SetXAxis(xAxis interface{}) *Kline {
+	c.xAxisData = xAxis
+	return c
+}
+
+// AddSeries adds the new series.
+func (c *Kline) AddSeries(name string, data []opts.KlineData, options ...SeriesOpts) *Kline {
+	series := SingleSeries{Name: name, Type: types.ChartKline, Data: data}
+	series.ConfigureSeriesOpts(options...)
+	c.MultiSeries = append(c.MultiSeries, series)
+	return c
+}
+
+// Validate validates the given configuration.
+func (c *Kline) Validate() {
+	c.XAxisList[0].Data = c.xAxisData
+	c.Assets.Validate(c.AssetsHost)
+}