szczanieckiej/traffic/time.go

// SPDX-FileCopyrightText: Adam Evyčędo
//
// SPDX-License-Identifier: AGPL-3.0-or-later

package traffic

import (
	"fmt"
	"strconv"
	"strings"
)

func parseDepartureTime(departureTime string) (int, error) {
	hms := strings.Split(departureTime, ":")
	h, err := strconv.ParseInt(hms[0], 10, 0)
	if err != nil {
		return 0, fmt.Errorf("while parsing hour: %w", err)
	}
	m, err := strconv.ParseInt(hms[1], 10, 0)
	if err != nil {
		return 0, fmt.Errorf("while parsing minutes: %w", err)
	}
	s, err := strconv.ParseInt(hms[2], 10, 0)
	if err != nil {
		return 0, fmt.Errorf("while parsing seconds: %w", err)
	}

	return int(s + m*60 + h*3600), nil
}

func formatDepartureTime(secondsAfterMidnight int) string {
	h := secondsAfterMidnight / 3600
	ms := secondsAfterMidnight % 3600
	m := ms / 60
	s := ms % 60
	return fmt.Sprintf("%02d:%02d:%02d", h, m, s)
}