package models

import (
	"encoding/base64"
	"encoding/json"
	"errors"
	"fmt"
	"log"
	"regexp"

	openapi "github.com/alibabacloud-go/darabonba-openapi/client"
	"github.com/alibabacloud-go/tea/tea"
	vod20170321 "github.com/alibabacloud-go/vod-20170321/v2/client"
	"github.com/spf13/viper"
)

func GetVideoM3U8(content string) (playinfo *vod20170321.GetPlayInfoResponseBodyPlayInfoList, err error) {
	if len(regexp.MustCompile(`image.gameuiux.cn`).FindStringSubmatch(content)) > 0 {
		key := regexp.MustCompile(`^https?://image.gameuiux.cn/`).ReplaceAllString(content, "")
		log.Println("GetVideoM3U8", key)
		// 连接点播服务的OSS
		client, _err := vod20170321.NewClient(&openapi.Config{
			AccessKeyId:     tea.String(viper.GetString("video.accessID")),
			AccessKeySecret: tea.String(viper.GetString("video.accessKey")),
			RegionId:        tea.String("cn-shanghai"),
		})
		if _err != nil {
			log.Println("Ea", _err.Error())
			return nil, _err
		}
		// 通过标题查询视频ID
		response, _err := client.SearchMedia(&vod20170321.SearchMediaRequest{
			Match: tea.String(fmt.Sprintf("Title='%s'", key)),
		})
		if _err != nil {
			log.Println("Eb", _err.Error())
			return nil, _err
		}
		if len(response.Body.MediaList) > 0 && *response.Body.MediaList[0].MediaType == "video" {
			// 通过ID查询视频播放地址
			VideoId := response.Body.MediaList[0].Video.VideoId
			log.Println("GetPlayInfo", response.Body.MediaList)
			result, _err := client.GetPlayInfo(&vod20170321.GetPlayInfoRequest{VideoId: VideoId})
			if _err != nil {
				log.Println("Ex", _err.Error())
				return nil, _err
			}
			log.Println("GetPlayInfo", result.Body.PlayInfoList)
			// TODO: 返回播放地址列表
			return result.Body.PlayInfoList, nil
		}

		// TODO: 保存到点播服务
		// TODO: 返回生成后的视频地址(如果已经在生成, 上锁防止重复请求)

		log.Println("无结果, 从OSS加载视频")
		bucket := GetBucket("gameui-image2")
		rest, _err := bucket.GetObject(key)
		if _err != nil {
			log.Println("读取视频失败", _err.Error())
			return nil, _err
		}
		defer rest.Close()

		// 1.获取视频上传地址和凭证，并生成视频信息
		createUploadVideoResponse, _err := client.CreateUploadVideo(&vod20170321.CreateUploadVideoRequest{
			Title:    tea.String(key),
			FileName: tea.String(key),
		})
		if _err != nil {
			log.Println("Ee", _err.Error())
			return nil, _err
		}
		// 解码base64
		upload := struct {
			Endpoint string `json:"Endpoint"`
			Bucket   string `json:"Bucket"`
			FileName string `json:"FileName"`
		}{}
		data, _ := base64.StdEncoding.DecodeString(*createUploadVideoResponse.Body.UploadAddress)
		json.Unmarshal(data, &upload)
		if bucket := GetBucket(upload.Bucket); bucket != nil {
			if err = bucket.PutObject(upload.FileName, rest); err != nil {
				log.Println("上传视频失败", err)
				return nil, err
			}
		}

		fmt.Println("上传视频结束")

		// fmt.Println("UploadAuth", *createUploadVideoResponse.Body.UploadAuth)
		// 4.媒体上传完成之后，可以获取媒体播放信息进行播放
		// 4.1 通过播放凭证播放
		getPlayInfoReponse, _err := client.GetPlayInfo(&vod20170321.GetPlayInfoRequest{
			VideoId: createUploadVideoResponse.Body.VideoId,
		})
		if _err != nil {
			log.Println("Ef", _err.Error())
			return nil, _err
		}

		fmt.Println("GetPlayInfo", getPlayInfoReponse.Body.PlayInfoList)
		return getPlayInfoReponse.Body.PlayInfoList, nil

		//// 4.2 通过播放地址播放
		//getVideoPlayAuthRequest := &vod20170321.GetVideoPlayAuthRequest{
		//	VideoId: uploadVideoId,
		//}
		//getVideoPlayAuthReponse, _err := client.GetVideoPlayAuth(getVideoPlayAuthRequest)
		//if _err != nil {
		//	return _err
		//}
		//console.Log(util.ToJSONString(tea.ToMap(getVideoPlayAuthReponse)))
	}
	return nil, errors.New("无效的视频地址")
}