package controllers

import (
	"car-service/extend/code"
	"car-service/models"
	"car-service/service"
	"fmt"
	"github.com/astaxie/beego"
	"net/http"
	"sort"
	"sync"
	"time"
)

type CarController struct {
	beego.Controller
}

//实时计算剩余车位数量，达到条件就推送
//要求：
//1.停车数量小于等于5个推送，5个以下的数量变化都推送，推送给已注册手机号的用户，未注册的不推
//2.满足上一条，如果此车辆已经进入学校停车场了，就不再给这个车牌对应的手机号推送空余车位消息
//3.晚上10点到10点半，每间隔10分钟，给停车场内的车辆推送消息：请尽快驶出停车场
func ComputeSpaceLeftRealTime() {
	ticker := time.NewTicker(3 * time.Second)
	prePushLeft := 0
	sv := service.NewCarService()
	initCacheM := false
	lowerLimit,_ := beego.AppConfig.Int("pushLowerLimit") //[0,5]
	nightPushTimes := 0
	for {
		select {
			case <-ticker.C:
				hikSta, flag := sv.Statistic()
				if flag {
					left := hikSta.Left
					if !initCacheM {
						models.SetSpaceNo(hikSta.TotalPlace)
						initCacheM = true
					}

					if left <=lowerLimit && left != prePushLeft {
						go func() {
							message := fmt.Sprintf("%s 剩余车位：%d个", time.Now().Format("2006-01-02 15:04:05"), left)
							b, e := service.PushByAlias("育英中学停车", message)

							prePushLeft = left

							fmt.Println("b:", b,"e:",e, "message:", message)
						}()
					}
					updateSpaceLeft(left)
				}
				//判断当前是否在22:00-22:30之间
				now := time.Now()
				if now.Hour() == 22 && now.Minute()>=0 && now.Minute() <=30{
					if now.Minute() == 0 {
						if nightPushTimes ==0 {
							go nightPush()
							nightPushTimes++
						}
					} else if now.Minute() == 10 {
						if nightPushTimes == 1 {
							go nightPush()
							nightPushTimes++
						}
					} else if now.Minute() == 20 {
						if nightPushTimes == 2{
							go nightPush()
							nightPushTimes++
						}
					} else if now.Minute() == 30 {
						if nightPushTimes == 3{
							go nightPush()
							nightPushTimes++
						}
					}
				} else {
					nightPushTimes = 0
				}

		default:
			time.Sleep(500 * time.Millisecond)
		}
	}
}

func nightPush(){

	message := fmt.Sprintf("%s 请尽快驶出停车场", time.Now().Format("2006-01-02 15:04:05"))
	b, e := service.NightPush("育英中学停车", message)

	fmt.Println("b:", b,"e:",e, "message:", message)

}

var cacheSpaceLeft int
var cLock sync.RWMutex
func updateSpaceLeft(num int) {
	cLock.Lock()
	defer cLock.Unlock()
	cacheSpaceLeft = num
}
func getSpaceLeft() int {
	cLock.Lock()
	defer cLock.Unlock()
	return cacheSpaceLeft
}

// @Title 统计剩余车位
// @Description 统计剩余车位
// @Success 200 {object} models.CarStatistic
// @Failure 403 {string} json ""
// @router /statistic [get]
func (c *CarController) Statistic() {
	left := getSpaceLeft()
	sta := models.CarStatistic{
		Left: left,
	}
	resp := code.Code{
		Success: true,
		Status: http.StatusOK,
		Data: sta,
	}
	c.Data["json"] = resp
	c.ServeJSON()
}

// @Title 根据车牌号查找车位信息
// @Description 根据车牌号查找车位信息
// @Success 200 {object} models.CarPos
// @Failure 403 {string} json ""
// @router /carPos [get]
func (c *CarController) findCar() {

}

// @Title 车位占用情况
// @Description 车位占用情况
// @Success 200 {object} models.PosResult
// @Failure 403 {string} json ""
// @router /spaceNo [get]
func (c *CarController) SpaceNo() {
	userId := c.GetString("userId")
	sv := service.NewCarService()
	spaceNos := sv.FindSpaceNo(userId)
	sort.Sort(spaceNos)
	resp := code.Code{
		Success: true,
		Status: http.StatusOK,
		Data: spaceNos,
	}
	c.Data["json"] = resp
	c.ServeJSON()
}


func (c *CarController) BindCarSpace() {

	c.ServeJSON()
}

// @router /testPush [get]
func (c *CarController) TestPush() {
	left := getSpaceLeft()
	message := fmt.Sprintf("%s 剩余车位：%d个", time.Now().Format("2006-01-02 15:04:05"), left)
	b, e := service.PushByAlias("育英中学停车", message)

	fmt.Println("b:", b,"e:",e, "message:", message)
	resp := code.Code{}
	if b {
		resp.Success = true
		resp.Status = http.StatusOK
		resp.Data = "推送成功"
	} else {
		resp.Success = false
		resp.Status = http.StatusInternalServerError
		resp.Data = e.Error()
	}
	c.Data["json"] = resp
	c.ServeJSON()
}

// @router /crossRecord [get]
func (c *CarController) CrossRecord() {
	sv := service.NewCarService()
	records := sv.CrossRecords()
	resp := code.Code{
		Success: true,
		Status:  http.StatusOK,
		Data:    records,
	}
	c.Data["json"] = resp
	c.ServeJSON()
}