package main

import (
	"fmt"
	"log"
	"time"

	"git.toowon.com/jimmy/go-common/datetime"
)

func main() {
	// 设置默认时区
	err := datetime.SetDefaultTimeZone(datetime.AsiaShanghai)
	if err != nil {
		log.Fatal(err)
	}

	// 获取当前时间
	now := datetime.Now()
	fmt.Printf("Current time: %s\n", datetime.FormatDateTime(now))

	// 解析时间字符串
	t, err := datetime.ParseDateTime("2024-01-01 12:00:00")
	if err != nil {
		log.Fatal(err)
	}
	fmt.Printf("Parsed time: %s\n", datetime.FormatDateTime(t))

	// 时区转换
	t2, err := datetime.ToTimezone(t, datetime.AmericaNewYork)
	if err != nil {
		log.Fatal(err)
	}
	fmt.Printf("Time in New York: %s\n", datetime.FormatDateTime(t2))

	// Unix时间戳
	unix := datetime.ToUnix(now)
	fmt.Printf("Unix timestamp: %d\n", unix)
	t3 := datetime.FromUnix(unix)
	fmt.Printf("From Unix: %s\n", datetime.FormatDateTime(t3))

	// 时间计算
	tomorrow := datetime.AddDays(now, 1)
	fmt.Printf("Tomorrow: %s\n", datetime.FormatDate(tomorrow))

	// 时间范围
	startOfDay := datetime.StartOfDay(now)
	endOfDay := datetime.EndOfDay(now)
	fmt.Printf("Start of day: %s\n", datetime.FormatDateTime(startOfDay))
	fmt.Printf("End of day: %s\n", datetime.FormatDateTime(endOfDay))

	// 时间差
	diff := datetime.DiffDays(now, tomorrow)
	fmt.Printf("Days difference: %d\n", diff)
}