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

time/parse.go

@@ -0,0 +1,53 @@
+package time
+
+import (
+	"fmt"
+	"time"
+
+	"github.com/jmattheis/go-timemath"
+	"github.com/traggo/server/model"
+)
+
+const nowKey = "now"
+
+// RelativeRange represents a relative range.
+type RelativeRange struct {
+	From string
+	To   string
+}
+
+// StaticRange represents a concrete range.
+type StaticRange struct {
+	From time.Time
+	To   time.Time
+}
+
+// ParseRange parses a range and converts it to static ranges.
+func ParseRange(now time.Time, r RelativeRange, interval model.Interval, startOf, endOf time.Weekday) ([]StaticRange, error) {
+	from, err := ParseTime(now, r.From, true, startOf)
+	if err != nil {
+		return nil, fmt.Errorf("range from: %s", err)
+	}
+	to, err := ParseTime(now, r.To, false, endOf)
+	if err != nil {
+		return nil, fmt.Errorf("range to: %s", err)
+	}
+
+	return ranges(from, to, interval), nil
+}
+
+// Validate tries to parse the input and only returns the error.
+func Validate(value string) error {
+	_, err := ParseTime(time.Now(), value, true, time.Monday)
+	return err
+}
+
+// ParseTime parses time.
+func ParseTime(now time.Time, value string, startOf bool, weekday time.Weekday) (time.Time, error) {
+	parse, err := time.Parse(time.RFC3339, value)
+	if err == nil {
+		return parse, nil
+	}
+
+	return timemath.Parse(now, value, startOf, weekday)
+}