snapshot of https://github.com/traggo/server.git (master, 2026-09-16; blobs > 131072B omitted)

time/range.go

@@ -0,0 +1,41 @@
+package time
+
+import (
+	"time"
+
+	"github.com/jmattheis/go-timemath"
+	"github.com/traggo/server/model"
+)
+
+func ranges(from time.Time, to time.Time, interval model.Interval) []StaticRange {
+	switch interval {
+	case model.IntervalSingle:
+		return []StaticRange{{From: from, To: to}}
+	case model.IntervalHourly:
+		return rangeForUnit(from, to, timemath.Hour)
+	case model.IntervalDaily:
+		return rangeForUnit(from, to, timemath.Day)
+	case model.IntervalWeekly:
+		return rangeForUnit(from, to, timemath.Week)
+	case model.IntervalMonthly:
+		return rangeForUnit(from, to, timemath.Month)
+	case model.IntervalYearly:
+		return rangeForUnit(from, to, timemath.Year)
+	default:
+		panic("unknown interval type")
+	}
+}
+
+func rangeForUnit(from time.Time, to time.Time, u timemath.Unit) []StaticRange {
+	var result []StaticRange
+	newFrom := from
+	for newFrom.Before(to) {
+		newTo := timemath.Second.Subtract(u.Add(newFrom, 1), 1)
+		if newTo.After(to) {
+			newTo = to
+		}
+		result = append(result, StaticRange{From: newFrom, To: newTo})
+		newFrom = timemath.Second.Add(newTo, 1)
+	}
+	return result
+}