package auth

import (
	"net/http"
	"strings"
	"videoweb/app/appg"
	"videoweb/pub/common/enum/consts"
	"videoweb/pub/common/log"
	"videoweb/pub/common/srvdef"
	"videoweb/pub/common/utils"
	"videoweb/pub/pubdef"

	"github.com/gin-gonic/gin"
)

// gin 验证中间件

var (
	// 白名单，不需要验证token的api
	whiteList = []string{
		"/swagger",
		"/api/app/auth/guest",
		"/api/app/auth/register",
		"/api/app/auth/login",
		"/api/app/auth/resetPassword",
		"/api/app/video/all/list",
		"/api/app/video/topic/list",
		"/api/app/video/list",
		"/api/app/video/detail",
		"/api/app/playlet/home",
		"/api/app/playlet/all/list",
		"/api/app/playlet/topic/list",
		"/api/app/playlet/topic/detail",
		"/api/app/playlet/operate/list",
		"/api/app/playlet/rank",
		"/api/app/playlet/hot/rank/list",
		"/api/app/playlet/today-update",
		"/api/app/playlet/tag/options",
		"/api/app/playlet/tag/list",
		"/api/app/playlet/guess-like/list",
		"/api/app/playlet/search",
		"/api/app/playlet/hot-like",
		"/api/app/playlet/detail",
		"/api/app/playlet/chapter/detail",
		"/api/app/recharge/package/list",
		"/api/app/comment/list",
		"/api/app/theme/list",
		"/api/app/config/info",
		"/api/app/config/footer/info",
		"/api/app/config/richtext/list",
		"/api/app/applist",
		"/api/app/translation/category/list",
		"/api/app/navigation/header",
		"/api/app/health/ping",
		"/api/app/statcenter/sync",
		"/h5/m3u8",
		"/enkey",
		"/newenkey",
	}
)

var (
	tokener = utils.NewTokenRedis()
)

func Auth(ctx *gin.Context) {
	dotoken := func() srvdef.CodeType {
		token := ctx.Request.Header.Get("Authorization")
		// 去掉Bearer，如果有
		token = utils.StripBearerPrefixFromTokenString(token)

		if token == "" {
			for _, w := range whiteList {
				if strings.Contains(ctx.Request.URL.Path, w) {
					return srvdef.Success
				}
			}

			log.Error("Auth:token is empty", log.Any("sysType", ctx.GetString(consts.CtxSysType)))
			return srvdef.InvalidToken
		}

		userId, newToken, err := utils.ParseUserToken(token, appg.Conf.JwtKey)
		if err != nil {
			for _, w := range whiteList {
				if strings.Contains(ctx.Request.URL.Path, w) {
					return srvdef.Success
				}
			}

			log.Error("Auth:ParseUserToken", log.Any("token", token), log.E(err))
			return srvdef.InvalidToken
		}

		if pubdef.IsCrawlerUser(userId) {
			if len(newToken) > 0 {
				ctx.Writer.Header().Set("Refresh-Authorization", newToken)
			}
			ctx.Set(consts.CtxUserID, userId)
			ctx.Set(consts.CtxToken, token)
			return srvdef.Success
		}

		has, err := tokener.Exists(userId, token)
		if err != nil {
			log.Error("Auth:Exists", log.Any("userId", userId), log.Any("token", token), log.E(err))
			return srvdef.InvalidToken
		}
		if !has {
			log.Error("Auth:Exists:token not exists", log.Any("userId", userId), log.Any("token", token), log.E(err))
			return srvdef.InvalidToken
		}

		if len(newToken) > 0 {
			err = tokener.Save(userId, newToken)
			if err != nil {
				log.Error("Auth:Save", log.Any("userId", userId), log.Any("token", newToken), log.E(err))
				return srvdef.StoreLevel
			}
			ctx.Writer.Header().Set("Refresh-Authorization", newToken)
		}

		ctx.Set(consts.CtxUserID, userId)
		ctx.Set(consts.CtxToken, token)

		return srvdef.Success
	}

	errType := dotoken()
	if errType != srvdef.Success {
		// log.Info("Auth bad request", log.Any("Path", ctx.Request.URL.Path), log.Any("ip", ctx.ClientIP()))
		ctx.AbortWithStatusJSON(http.StatusOK, gin.H{
			"code": errType,
			"msg":  errType.Msg(),
		})
	}

}