From e25d52b141c775c8d61ee0b938c81f33d8907e52 Mon Sep 17 00:00:00 2001
From: Bel LaPointe <153096461+breel-render@users.noreply.github.com>
Date: Thu, 12 Dec 2024 22:33:21 -0700
Subject: [PATCH] prettier printing

---
 cmd/cli/config.go  |  1 +
 cmd/cli/main.go    | 20 +++++++++++++++-----
 src/ledger/like.go |  9 ++++++---
 3 files changed, 22 insertions(+), 8 deletions(-)

diff --git a/cmd/cli/config.go b/cmd/cli/config.go
index 1189989..f1c12d5 100644
--- a/cmd/cli/config.go
+++ b/cmd/cli/config.go
@@ -7,5 +7,6 @@ type Config struct {
 		Sort       string
 		NoRounding bool
 		Depth      int
+		Reverse    bool
 	}
 }
diff --git a/cmd/cli/main.go b/cmd/cli/main.go
index f420e7a..203f1d7 100644
--- a/cmd/cli/main.go
+++ b/cmd/cli/main.go
@@ -19,6 +19,7 @@ func Main() {
 	fs.StringVar(&config.Query.Sort, "S", "", "sort ie date")
 	fs.BoolVar(&config.Query.NoRounding, "no-rounding", false, "no rounding")
 	fs.IntVar(&config.Query.Depth, "depth", 0, "depth grouping")
+	fs.BoolVar(&config.Query.Reverse, "r", false, "reverse printed accounts")
 	if err := fs.Parse(os.Args[1:]); err != nil {
 		panic(err)
 	}
@@ -86,31 +87,40 @@ func Main() {
 			balances = balances.NotLike(notLikePattern)
 		}
 
-		FPrintBalances(os.Stdout, balances)
+		FPrintBalances(os.Stdout, "", balances)
 	case "reg":
 		transactions := deltas.Transactions()
 		likes := []ledger.Like{}
 		if likePattern != "" {
 			like := ledger.LikeName(likePattern)
 			transactions = transactions.Like(like)
+			if config.Query.Reverse {
+				like = ledger.LikeNot(like)
+			}
 			likes = append(likes, like)
 		}
 		if notLikePattern != "" {
 			like := ledger.NotLikeName(notLikePattern)
 			transactions = transactions.NotLike(like)
+			if config.Query.Reverse {
+				like = ledger.LikeNot(like)
+			}
 			likes = append(likes, like)
 		}
 
 		for _, transaction := range transactions {
-			fmt.Println(transaction[0].Date)
-			FPrintBalances(os.Stdout, ledger.Deltas(transaction).Like(likes...).Balances())
+			balances := ledger.Deltas(transaction).Like(likes...).Balances()
+			if len(balances) > 0 {
+				fmt.Printf("%s\t%s\n", transaction[0].Date, transaction[0].Description)
+				FPrintBalances(os.Stdout, "\t\t", ledger.Deltas(transaction).Like(likes...).Balances())
+			}
 		}
 	default:
 		panic("unknown command " + positional[0])
 	}
 }
 
-func FPrintBalances(w io.Writer, balances ledger.Balances) {
+func FPrintBalances(w io.Writer, linePrefix string, balances ledger.Balances) {
 	keys := []string{}
 	for k := range balances {
 		keys = append(keys, k)
@@ -124,7 +134,7 @@ func FPrintBalances(w io.Writer, balances ledger.Balances) {
 		}
 	}
 
-	format := fmt.Sprintf("%%-%ds\t%%s%%.2f\n", max)
+	format := fmt.Sprintf("%s%%-%ds\t%%s%%.2f\n", linePrefix, max)
 	for _, key := range keys {
 		currencies := []ledger.Currency{}
 		for currency := range balances[key] {
diff --git a/src/ledger/like.go b/src/ledger/like.go
index c2fe36f..0a71d45 100644
--- a/src/ledger/like.go
+++ b/src/ledger/like.go
@@ -41,13 +41,16 @@ func LikeNotName(pattern string) Like {
 	}
 }
 
-func NotLikeName(pattern string) Like {
-	foo := LikeName(pattern)
+func LikeNot(like Like) Like {
 	return func(d Delta) bool {
-		return !foo(d)
+		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)