moving ledger predictions to /ana

ledger/predict.go

@@ -124,39 +124,6 @@ func registerWithContributionPredictionForNameForCurrency(reg Register, window t
 	return nil
 }
 
-func BPIsWithFixedGrowthPrediction(bpis BPIs, window time.Duration, pattern string, apy float64) (BPIs, error) {
-	last := map[Currency]struct {
-		t string
-		v float64
-	}{}
-	for currency, bpi := range bpis {
-		for date, value := range bpi {
-			if date > last[currency].t {
-				was := last[currency]
-				was.t = date
-				was.v = value
-				last[currency] = was
-			}
-		}
-	}
-
-	result := make(BPIs)
-	p := regexp.MustCompile(pattern)
-	for currency, v := range bpis {
-		result[currency] = maps.Clone(v)
-		if p.MatchString(string(currency)) {
-			for _, predictionTime := range predictionTimes(window) {
-				k2 := predictionTime.Format("2006-01")
-				was := last[currency]
-				was.v *= 1.0 + (apy / 12.0)
-				result[currency][k2] = was.v
-				last[currency] = was
-			}
-		}
-	}
-	return result, nil
-}
-
 func RegisterWithCompoundingInterestPrediction(reg Register, window time.Duration, pattern string, apy float64) (Register, error) {
 	lastBalances := make(Balances)
 	p := regexp.MustCompile(pattern)

ledger/predict_test.go

@@ -1,7 +1,6 @@
 package ledger
 
 import (
-	"slices"
 	"testing"
 	"time"
 )
@@ -51,32 +50,6 @@ func TestRegisterPrediction(t *testing.T) {
 	})
 }
 
-func TestBPIPrediction(t *testing.T) {
-	t.Run("fixed growth", func(t *testing.T) {
-		bpis := BPIs{
-			USD: BPI{
-				"2001-01": -1000,
-				"2001-02": 100,
-			},
-		}
-
-		got, err := BPIsWithFixedGrowthPrediction(bpis, time.Hour*24*365, string(USD), 0.06)
-		if err != nil {
-			t.Fatal(err)
-		}
-
-		dates := []string{}
-		for d := range got[USD] {
-			dates = append(dates, d)
-		}
-		slices.Sort(dates)
-
-		for _, d := range dates {
-			t.Logf("%s | %s %.2f", USD, d, got[USD][d])
-		}
-	})
-}
-
 func newTestRegister() map[string]Balances {
 	s := func(t time.Time) string {
 		return t.Format("2006-01")