package upgrade

import (
	"io/ioutil"
	"os"
	"strconv"
	"strings"

	"github.com/astaxie/beego"
)

type VersionController struct {
	beego.Controller
}

func init() {

}

//检查是否有新的客户端版本.客户端本地检查接口
// @Summary 检查是否有新的客户端版本
// @router /version/isnew [get]
func (c *VersionController) IsNewClientVersion() {
	if IsNewVersion == 0 {
		c.Data["json"] = c.warpOK("")
	} else {
		c.Data["json"] = c.warpOK(GetNewVersionInfo())
	}
	c.ServeJSON()
}

//检查是否有新的客户端版本.服务端接口
// @Summary 获取最新客户端版本下载地址
// @router /version/check_client [get]
func (c *VersionController) CheckClientVersion() {
	clientVersion := c.GetString("version")
	if clientVersion == "" {
		c.Data["json"] = c.warpError("无效的客户端版本号")
		c.ServeJSON()
		return
	}
	clientVersion = strings.Replace(clientVersion, "-", "", 1)
	dir := "./static/client_version"
	_, err := os.Stat(dir)
	if err != nil {
		c.Data["json"] = c.warpError("检查版本信息时异常：" + err.Error())
		c.ServeJSON()
		return
	}
	newVersion := map[string]string{"url": "", "version": "", "desc": ""}
	if os.IsNotExist(err) {
		os.MkdirAll(dir, 0777)
		c.Data["json"] = c.warpOK(newVersion)
		c.ServeJSON()
		return
	}

	//获取目录 下最新的更新包
	//包为zip格式，包名规则为打包时的年月日时，如2022011413表示该包在2022年01月14日13点完成打包，将以此为版本号与客户端版本号进行对比
	flist, err := ioutil.ReadDir(dir)
	if err != nil {
		c.Data["json"] = c.warpError("检查版本信息时异常：" + err.Error())
		c.ServeJSON()
		return
	}
	maxVersion := 0
	filename := ""
	for _, fp := range flist {
		if fp.IsDir() {
			continue
		}
		f2 := strings.Split(fp.Name(), ".")
		if len(f2) == 1 || f2[1] != "zip" {
			continue
		}
		vvv, err := strconv.Atoi(strings.ReplaceAll(f2[0], "-", ""))
		if err != nil {
			continue
		}
		if vvv > maxVersion {
			maxVersion = vvv
			filename = f2[0]
		}
	}
	clientVersionInt, _ := strconv.Atoi(clientVersion)
	if maxVersion > clientVersionInt {
		newVersion["version"] = strconv.Itoa(maxVersion)
		newVersion["url"] = "static/client_version/" + filename + ".zip"
	}
	c.Data["json"] = c.warpOK(newVersion)
	c.ServeJSON()
}

func (c *VersionController) warpOK(data interface{}) interface{} {
	user := make(map[string]interface{})
	user["data"] = data
	user["returncode"] = 200
	user["msg"] = ""
	return user
}

func (c *VersionController) warpError(msg string) interface{} {
	user := make(map[string]interface{})
	user["data"] = ""
	user["returncode"] = 500
	user["msg"] = msg
	return user
}