package configser

import (
	"encoding/json"
	"fmt"
	"net/http"
	"sort"
	"strconv"
	"strings"
	"videoweb/app/api/proto"
	"videoweb/app/appg"
	"videoweb/pub/adcenter"
	"videoweb/pub/common/httputil"
	"videoweb/pub/common/log"
	"videoweb/pub/common/netutil"
	"videoweb/pub/storage/proxy"
)

// 广告中心应用ID（本站专用）
const advertiseAppId int32 = 12

// advertiseInfo 广告中心 /api/stat/advitise/v2/get 的广告条目
type advertiseInfo struct {
	Id       int64  `json:"id"`       // 广告id
	Title    string `json:"title"`    // 广告标题
	CoverImg string `json:"coverImg"` // 封面
	LocId    int32  `json:"locId"`    // 位置id
	JumpType int32  `json:"jumpType"` // 跳转方式
	Link     string `json:"link"`     // 链接地址
	Sort     int64  `json:"sort"`     // 排序
	Tags     string `json:"tags"`     // 标签
	Remark   string `json:"remark"`   // 备注描述
}

type advertiseReq struct {
	AppId int32 `json:"appId"`
}

type advertiseRes struct {
	AdvertiseList []advertiseInfo `json:"advertiseList"`
}

// fetchAdvertiseList 请求广告中心 /api/stat/advitise/v2/get
func fetchAdvertiseList() (*advertiseRes, error) {
	versionUrl := strings.TrimRight(strings.TrimSpace(appg.Conf.VersionUrl), "/")
	if versionUrl == "" {
		return nil, fmt.Errorf("versionUrl 未配置")
	}
	url := versionUrl + "/api/stat/advitise/v2/get"
	body, _ := json.Marshal(advertiseReq{AppId: advertiseAppId})
	var resp advertiseRes
	code, err := httputil.Client().POSTJsonWithJResp(&resp, url, map[string]string{"Content-Type": "application/json"}, body)
	if err != nil {
		return nil, err
	}
	if code != http.StatusOK {
		return nil, fmt.Errorf("response status %d", code)
	}
	return &resp, nil
}

// UpdateAdvitiseDataFromJt 从广告中心拉取广告并更新内存缓存，列表为空时重试一次
func UpdateAdvitiseDataFromJt() {
	resp, err := fetchAdvertiseList()
	if err != nil {
		log.Error("UpdateAdvitiseDataFromJt fetchAdvertiseList fail", log.E(err))
		return
	}
	if len(resp.AdvertiseList) == 0 {
		resp, err = fetchAdvertiseList()
		if err != nil {
			log.Error("UpdateAdvitiseDataFromJt fetchAdvertiseList retry fail", log.E(err))
			return
		}
	}
	list := resp.AdvertiseList
	sort.SliceStable(list, func(i, j int) bool {
		if list[i].LocId != list[j].LocId {
			return list[i].LocId < list[j].LocId
		}
		return list[i].Sort < list[j].Sort
	})

	config := GetConfigInfo()
	data := proto.AdvitiseData{}
	adMap := make(map[string]adcenter.AdCacheInfo, len(list))

	for _, v := range list {
		pos := int64(v.LocId)
		info := proxy.AdvitiseInfo{
			Id:       strconv.FormatInt(v.Id, 10),
			Location: pos,
			Title:    v.Title,
			Images:   netutil.MergeURL(config.ImgCdn, strings.TrimLeft(v.CoverImg, "/")),
			Link:     strings.ReplaceAll(v.Link, "inner://yinseinner/", "yinseinner://"),
		}
		switch pos {
		case 1:
			data.DialogList = append(data.DialogList, info)
		case 2:
			data.NineGridList = append(data.NineGridList, info)
		case 3:
			data.DetailbannerList = append(data.DetailbannerList, info)
		case 12:
			data.AList = append(data.AList, info)
		case 13:
			data.BList = append(data.BList, info)
		}
		adMap[info.Id] = adcenter.AdCacheInfo{
			AdvertiseCode:         info.Id,
			AdvertiseName:         v.Title,
			AdvertiseUrl:          v.Link,
			AdvertiseIcon:         v.CoverImg,
			AdvertiseDesc:         v.Remark,
			Sort:                  int(v.Sort),
			AdvertiseLocationCode: strconv.FormatInt(pos, 10),
			AdvertiseLocationName: v.Title,
		}
	}

	CacheMgr.Lock.Lock()
	defer CacheMgr.Lock.Unlock()
	CacheMgr.Advitise = data
	CacheMgr.AdvitiseMap = adMap
}

// GetAdvertiseLocation 按广告ID反查广告详情
func GetAdvertiseLocation(adverId string) (res adcenter.AdCacheInfo) {
	CacheMgr.Lock.RLock()
	defer CacheMgr.Lock.RUnlock()
	if ad, ok := CacheMgr.AdvitiseMap[adverId]; ok {
		res = ad
	}
	return
}