package handler

import (
	"encoding/json"
	"fmt"
	"github.com/gin-gonic/gin"
	"net/http"
	"os"
	"strconv"
	"time"
	"videoplayer/proto"
	"videoplayer/service"
	"videoplayer/worker"
)

// video获取视频列表请求
type gvlReq struct {
	StartTime int64  `json:"begin" form:"begin"`
	EndTime   int64  `json:"end" form:"end"`
	IP        string `json:"ip" form:"ip"`
	Token     string `json:"token" form:"token"`
	Hour      string `json:"hour" form:"hour"`
}

// video添加视频记录请求
type videoReq struct {
	CameraID   int    `json:"camera_id"`
	VideoPath  string `json:"video_path"`
	VideoName  string `json:"video_name"`
	AuthId     int    `json:"auth_id"`
	Human      int    `json:"human"`
	IsDelete   int    `json:"is_delete"`
	CreateTime string `json:"create_time"`
	EndTime    string `json:"end_time"`
	DeleteTime string `json:"delete_time"`
	FileSize   int    `json:"file_size"`
}

type videoUpdateReq struct {
	ID         int    `json:"id"`
	CameraID   int    `json:"camera_id"`
	VideoPath  string `json:"video_path"`
	VideoName  string `json:"video_name"`
	AuthId     int    `json:"auth_id"`
	Human      int    `json:"human"`
	IsDelete   int    `json:"is_delete"`
	CreateTime string `json:"create_time"`
	EndTime    string `json:"end_time"`
	DeleteTime string `json:"delete_time"`
	FileSize   int    `json:"file_size"`
}

// video播放视频请求
type videoPReq struct {
	ID     int    `form:"id"`
	Token  string `form:"token"`
	AuthId string `form:"userId"`
	IP     string `form:"ip"`
}

type VideoDelReq struct {
	ID int `json:"id"`
}

// video延迟视频请求
type delayReq struct {
	ID     int    `form:"id"`
	Option string `form:"option"`
	AuthId int    `form:"userId"`
	IP     string `form:"ip"`
	Day    int    `form:"delay"`
}

func SetUpVideoGroup(router *gin.Engine) {
	videoGroup := router.Group("/video")
	videoGroup.POST("/get_video_list", GetVideoList)
	videoGroup.GET("/will_del_video_list", GetWillDelVideoList)
	videoGroup.POST("/create", CreateVideo)
	videoGroup.GET("/mp4", GetVideo)
	videoGroup.POST("/delay", DelayVideo)
	videoGroup.POST("/delete", DeleteVideo)
	videoGroup.POST("/update", UpdateVideo)
	videoGroup.POST("/quash_option", QuashOption)
}

func GetWillDelVideoList(c *gin.Context) {
	id, _ := c.Get("id")
	videos := service.GetWillDelVideoList(int(id.(float64)))
	c.JSON(http.StatusOK, gin.H{"videos": videos, "code": proto.SuccessCode, "message": "success"})

}

func UpdateVideo(c *gin.Context) {
	var video_req videoUpdateReq
	user_id, _ := c.Get("id")
	if err := c.ShouldBind(&video_req); err == nil {
		res := service.UpdateVideo(video_req.VideoPath, video_req.VideoName, video_req.CameraID, video_req.ID, int(user_id.(float64)), video_req.Human, video_req.IsDelete, video_req.CreateTime, video_req.EndTime, video_req.FileSize)
		if !res {
			c.JSON(http.StatusOK, gin.H{"error": "update video failed", "code": proto.OperationFailed, "message": "failed"})
			return
		}
		c.JSON(http.StatusOK, gin.H{"code": proto.SuccessCode, "message": "success", "data": "update success"})
	} else {
		c.JSON(http.StatusOK, gin.H{"error": err.Error(), "code": proto.ParameterError, "message": "failed"})
	}
}

func GetVideo(c *gin.Context) {
	var vp_req videoPReq
	user_id, _ := c.Get("id")
	if err := c.ShouldBindQuery(&vp_req); err == nil {
		fmt.Println(vp_req)
		video := service.GetVideo(vp_req.ID, int(user_id.(float64)))
		name := video.VideoName
		path := video.VideoPath
		if video.IsDelete == 0 {
			// 打开文件
			file, err := os.Open(path + name)
			if err != nil {
				c.JSON(http.StatusOK, gin.H{"error": err.Error()})
				return
			}
			defer file.Close()
			// 设置响应头
			c.Header("Content-Type", "video/mp4")

			// 开始传输文件
			http.ServeContent(c.Writer, c.Request, name, time.Now(), file) // 传输文件, 传输文件的内容类型, 文件名, 文件最后修改时间, 文件

			// 返回文件
			c.JSON(http.StatusOK, gin.H{"message": "success", "code": 200})
		} else {
			c.JSON(http.StatusOK, gin.H{"error": "video is deleted"})
		}
	} else {
		c.JSON(http.StatusOK, gin.H{"error": err.Error()})
	}
}
func CreateVideo(c *gin.Context) {
	var video_req videoReq
	user_id, _ := c.Get("id")
	if err := c.ShouldBind(&video_req); err == nil {
		fmt.Println(video_req)
		id := service.CreateVideo(video_req.VideoPath, video_req.VideoName, video_req.CameraID, int(user_id.(float64)), video_req.Human, video_req.IsDelete, video_req.CreateTime, video_req.EndTime, video_req.DeleteTime, video_req.FileSize)
		if id == 0 {
			c.JSON(http.StatusOK, gin.H{"error": "create video failed", "code": proto.DataNotFound, "message": "failed"})
			return
		}
		c.JSON(http.StatusOK, gin.H{"id": id, "code": proto.SuccessCode, "message": "success"})
	} else {
		c.JSON(http.StatusOK, gin.H{"error": err.Error(), "code": proto.ParameterError, "message": "failed"})
	}
}

func GetVideoList(c *gin.Context) {
	var gvl_req gvlReq
	gvl_req.Hour = "33"
	id, _ := c.Get("id")
	if err := c.ShouldBind(&gvl_req); err == nil {
		const layout = "2006-01-02 15:04:05"
		tm1 := time.Unix(gvl_req.StartTime, 0).Format(layout)
		tm2 := time.Unix(gvl_req.EndTime, 0).Format(layout)
		videos := service.GetVideoList(int(id.(float64)), tm1, tm2, gvl_req.Hour)
		c.JSON(http.StatusOK, gin.H{"data": videos, "code": proto.SuccessCode, "message": "success"})
	} else {
		c.JSON(http.StatusOK, gin.H{"error": err.Error(), "code": proto.ParameterError, "message": "failed"})
	}
}

func DelayVideo(c *gin.Context) {
	var delay_req delayReq
	id, _ := c.Get("id")
	user, _ := c.Get("username")
	cnt := 0
	if err := c.ShouldBind(&delay_req); err == nil {
		if delay_req.Day > 30 || delay_req.Day < 1 {
			c.JSON(http.StatusOK, gin.H{"code": proto.VideoDelayOperationFailed, "data": "延迟天数过大或过小", "message": "failed"})
			return
		}
		if delay_req.Option == "all" {
			cnt = service.DelayAllVideo(int(id.(float64)), delay_req.Day)
		}
		if delay_req.Option == "one" {
			cnt = service.DelayVideo(delay_req.ID, int(id.(float64)), delay_req.Day)
		}
		if cnt == 0 {
			c.JSON(http.StatusOK, gin.H{"code": proto.OperationFailed, "data": "延迟失败数据", "message": "failed,cnt:" + strconv.Itoa(cnt)})
		} else {
			data := map[string]interface{}{"auth_id": int(id.(float64)), "method": "delay", "delay_time": time.Now().Format("2006-01-02 15:04:05"), "delay_day": delay_req.Day, "option": delay_req.Option, "id": delay_req.ID}
			str, _ := json.Marshal(data)
			worker.PushRedisList(user.(string)+"-"+strconv.Itoa(int(id.(float64)))+"-option", string(str))
			c.JSON(http.StatusOK, gin.H{"code": proto.SuccessCode, "data": "延迟成功,影响记录:" + strconv.Itoa(cnt), "message": "success cnt:" + strconv.Itoa(cnt)})
		}
	} else {
		c.JSON(http.StatusOK, gin.H{"error": err.Error(), "code": proto.ParameterError, "message": "failed"})
	}
}

func DeleteVideo(c *gin.Context) {
	var video_req VideoDelReq
	id, _ := c.Get("id")
	user, _ := c.Get("username")
	if err := c.ShouldBind(&video_req); err == nil {
		res := service.DeleteVideo(video_req.ID, int(id.(float64)))
		if res != 0 {
			data := map[string]interface{}{"id": video_req.ID, "auth_id": int(id.(float64)), "delete_time": time.Now().Format("2006-01-02 15:04:05"), "method": "delete"}
			str, _ := json.Marshal(data)
			worker.PushRedisList(user.(string)+"-"+strconv.Itoa(int(id.(float64)))+"-option", string(str))
			c.JSON(http.StatusOK, gin.H{"code": proto.SuccessCode, "message": "success"})
		} else {
			c.JSON(http.StatusOK, gin.H{"code": proto.ParameterError, "message": "failed"})
		}
	} else {
		c.JSON(http.StatusOK, gin.H{"error": err.Error(), "code": proto.ParameterError, "message": "failed"})
	}
}

func QuashOption(c *gin.Context) {
	id, _ := c.Get("id")
	user, _ := c.Get("username")
	res := worker.PopRedisList(user.(string) + "-" + strconv.Itoa(int(id.(float64))) + "-option")
	if res != "" {
		var retrievedData map[string]interface{}
		err2 := json.Unmarshal([]byte(res), &retrievedData)
		if err2 == nil {
			code, msg := service.QuashVideo(int(id.(float64)), retrievedData)
			c.JSON(http.StatusOK, gin.H{"code": code, "message": msg, "data": msg})
		} else {
			worker.PushRedisList(user.(string)+"-"+strconv.Itoa(int(id.(float64)))+"-option", res) //未操作成功重新添加到队列
			c.JSON(http.StatusOK, gin.H{"code": proto.ParameterError, "message": err2, "data": "json解析错误"})
			return
		}
	} else {
		c.JSON(http.StatusOK, gin.H{"code": proto.ParameterError, "message": "redis data not found", "data": "error"})
	}
}