Tariff: better rate matching error (#17255)

evcc-io · Nov 14, 2024 · 1a8b412 · 1a8b412
1 parent 52ca2c8
commit 1a8b412
Showing 1 changed file with 6 additions and 2 deletions.
diff --git a/api/rates.go b/api/rates.go
@@ -1,7 +1,7 @@
 package api
 
 import (
-	"errors"
+	"fmt"
 	"slices"
 	"time"
 )
@@ -36,5 +36,9 @@ func (r Rates) Current(now time.Time) (Rate, error) {
 		}
 	}
 
-	return Rate{}, errors.New("no matching rate")
+	if len(r) == 0 {
+		return Rate{}, fmt.Errorf("no matching rate for: %s", now.Local().Format(time.RFC3339))
+	}
+	return Rate{}, fmt.Errorf("no matching rate for: %s, %d rates (%s to %s)",
+		now.Local().Format(time.RFC3339), len(r), r[0].Start.Local().Format(time.RFC3339), r[len(r)-1].End.Local().Format(time.RFC3339))
 }