package controllers

import (
	"car-service/models"
	"car-service/vo"
	"encoding/json"
	"fmt"
	"github.com/astaxie/beego"
	"strconv"
	"strings"
)

type AppController struct {
	beego.Controller
}

// @Title 比对版本号，看是否有升级
// @Description 比对版本号，看是否有升级
// @Param curVersion query string  true "当前版本号"
// @Success 200 {object} models.SysUpgrade
// @Failure 403 {string} json ""
// @router /version [get]
func (c *AppController)  Version() {
	curV := c.GetString("curVersion")
	platform := c.GetString("platform")
	fmt.Println("platform:",platform,"curV:", curV)
	if platform == "" {
		platform = "android"
	}
	pType := -1 //未知的平台
	if platform == "android" {
		pType = models.PlatType_Android
	} else if platform == "ios" {
		pType = models.PlatType_Ios
	}
	result := vo.Upgrade{}
	var sv models.SysUpgrade
	err := sv.GetLatest(pType)
	if err != nil {
		result.Msg = []string{}
	} else {
		latestV := sv.LatestVersion
		if shouldVersionBeUpgrade(curV, latestV) {
			result.IsUpgrade = true
			result.Url = sv.Url
			result.LatestVersion = sv.LatestVersion
			result.Time = sv.Time
			result.ForceUpgrade = sv.ForceUpgrade
			var msgArr []string
			if e1 := json.Unmarshal([]byte(sv.Msg), &msgArr);e1 ==nil {
				result.Msg = msgArr
			} else {
				fmt.Println("unmarshal err:", e1)
				result.Msg = []string{}
			}
			result.Size = sv.Size

		} else {
			result.IsUpgrade = false
			result.Msg = []string{}
		}
	}

	c.Data["json"] = result
	c.ServeJSON()
}

func shouldVersionBeUpgrade(curVersion, latestVersion string) bool {
	if curVersion == "" {
		return true
	}
	if latestVersion == "" {
		return false
	}
	curIVArr := strings.Split(curVersion, ".")
	dstIVArr := strings.Split(latestVersion, ".")
	if len(curIVArr) !=3 || len(dstIVArr) != 3{
		fmt.Println("version arr !=3")
		return false
	}
	cH,cEH := strconv.Atoi(curIVArr[0])
	cM,cEM := strconv.Atoi(curIVArr[1])
	cL,cEL := strconv.Atoi(curIVArr[2])

	dH,dEH := strconv.Atoi(dstIVArr[0])
	dM,dEM := strconv.Atoi(dstIVArr[1])
	dL,dEL := strconv.Atoi(dstIVArr[2])
	if cEH !=nil || cEM != nil || cEL != nil || dEH != nil ||dEM !=nil || dEL !=nil {
		fmt.Println("Atoi err")
		return false
	}
	if cH > dH {
		return false
	} else if cH == dH {
		if cM > dM {
			return false
		} else if cM == dM {
			if cL > dL {
				return false
			} else if cL == dL {
				return false
			} else {
				return true
			}
		} else {
			return true
		}
	} else {
		return true
	}
}