package main

import (
	"cr-launcher/utils"
	"fmt"
	"math/rand"
	"os/exec"
	"time"

	"github.com/fatih/color"
	"github.com/vbauerster/mpb/v8"
	"github.com/vbauerster/mpb/v8/decor"
)

func main() {

	// fmt.Println("xxxxxxxxxxxxx")
	// http 获取版本信息
	// 比较远程版本与本地版本
	// http下载文件，更新版本信息

	// 解压
	// err := utils.WriteConfig(&utils.Config{
	// 	Version: "2.0.0",
	// 	Url:     "http://www.baidu.com",
	// })
	// fmt.Println(err)
	// fmt.Println(config)
	// fmt.Println(path.Base("http://www.dddfd.com/windows.zip"))
	version, err := utils.GetLatest("http://127.0.0.1:8085/cr/version/latest")
	config, _ := utils.ReadConfig()
	if config == nil {
		// fmt.Println(err)
		fmt.Println("配置文件错误")
		return
	}
	// 服务器最新版本有变动 更新
	if version.Version != config.Version {
		// todo
		fmt.Println("更新")
	}
	// 运行应用程序
	cmd := exec.Command("data/cr.exe")
	data, err := cmd.Output()
	if err != nil {
		fmt.Println(err)
		fmt.Println("启动失败")
		return
	}
	fmt.Println(data)
	fmt.Println("启动成功")

	fmt.Println(err)
	fmt.Println(config)

	// to support color in Windows following both options are required
	p := mpb.New(
		mpb.WithOutput(color.Output),
		mpb.WithAutoRefresh(),
	)

	red, green := color.New(color.FgRed), color.New(color.FgGreen)

	fmt.Println("应用更新中...")
	task := "windows.zip"
	queue := make([]*mpb.Bar, 2)
	queue[0] = p.AddBar(rand.Int63n(201)+100,
		mpb.PrependDecorators(
			decor.Name(task, decor.WC{C: decor.DindentRight | decor.DextraSpace}),
			decor.Name("下载中:", decor.WCSyncSpaceR),
			decor.CountersNoUnit("%d / %d", decor.WCSyncWidth),
		),
		mpb.AppendDecorators(
			decor.OnComplete(decor.Percentage(decor.WC{W: 5}), "done"),
		),
	)
	queue[1] = p.AddBar(rand.Int63n(101)+100,
		mpb.BarQueueAfter(queue[0]), // this bar is queued
		mpb.BarFillerClearOnComplete(),
		mpb.PrependDecorators(
			decor.Name(task, decor.WC{C: decor.DindentRight | decor.DextraSpace}),
			decor.OnCompleteMeta(
				decor.OnComplete(
					decor.Meta(decor.Name("安装中:", decor.WCSyncSpaceR), toMetaFunc(red)),
					"更新完成!",
				),
				toMetaFunc(green),
			),
			decor.OnComplete(decor.EwmaETA(decor.ET_STYLE_MMSS, 0, decor.WCSyncWidth), ""),
		),
		mpb.AppendDecorators(
			decor.OnComplete(decor.Percentage(decor.WC{W: 5}), ""),
		),
	)

	go func() {
		for _, b := range queue {
			complete(b)
		}
	}()

	p.Wait()

}

func complete(bar *mpb.Bar) {
	max := 100 * time.Millisecond
	for !bar.Completed() {
		// start variable is solely for EWMA calculation
		// EWMA's unit of measure is an iteration's duration
		start := time.Now()
		time.Sleep(time.Duration(rand.Intn(10)+1) * max / 10)
		// we need to call EwmaIncrement to fulfill ewma decorator's contract
		bar.EwmaIncrInt64(rand.Int63n(5)+1, time.Since(start))
	}
}

func toMetaFunc(c *color.Color) func(string) string {
	return func(s string) string {
		return c.Sprint(s)
	}
}