package web

import (
	"net/http"
	"videoweb/app/service/playletser"
	"videoweb/pub/common/log"
	"videoweb/pub/common/useragent"

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

// History 观看历史 SSR：GET /api/app/playlet/history/list。
func History(c *gin.Context) {
	if useragent.TokenFromRequest(c.Request) == "" {
		RedirectToLogin(c)
		return
	}

	q := playletser.ParseHistoryListQuery(routeOrQuery(c, "page", "page"))
	if redirectCanonical(c, playletser.HistoryCanonicalPath(q)) {
		return
	}
	raw, code, err := playletser.FetchHistoryList(c, q)
	if err != nil {
		aborted, retry := AbortSSRIfSessionExpired(c, code)
		if aborted {
			return
		}
		if retry {
			raw, _, err = playletser.FetchHistoryList(c, q)
		}
		if err != nil {
			log.Error("fetch playlet history list failed", log.E(err))
			raw = &playletser.PlayletHistoryListResp{PageNum: q.PageNum, PageSize: q.PageSize}
		}
	}
	if raw == nil {
		raw = &playletser.PlayletHistoryListResp{PageNum: q.PageNum, PageSize: q.PageSize}
	}

	data := gin.H{
		"title":       "观看历史",
		"description": "查看黄果短剧观看历史，快速回到上次看到的剧集继续观看。",
		"navActive":   "userCenter",
		"list":        raw.List,
		"pageNum":     raw.PageNum,
		"pageSize":    raw.PageSize,
		"totalCount":  raw.TotalCount,
		"pagination":  playletser.BuildHistoryPagination(q, raw.TotalCount),
		"emptyTitle":  "暂无观看历史",
		"emptyDesc":   "开始播放短剧后，记录会出现在这里",
	}
	setNoIndex(data, false)
	HTMLOK(c, "history.html", data)
}

// HistoryClear 代理上游 POST /api/app/playlet/history/clear。
func HistoryClear(c *gin.Context) {
	if useragent.TokenFromRequest(c.Request) == "" {
		c.JSON(http.StatusOK, gin.H{
			"code": 401,
			"msg":  "unauthorized",
			"tip":  "请先登录",
			"data": nil,
		})
		return
	}

	env, err := playletser.HistoryClear(c)
	if err != nil {
		log.Error("playlet history clear upstream failed", log.E(err))
		c.JSON(http.StatusOK, gin.H{
			"code": 500,
			"msg":  "history clear failed",
			"tip":  "清空失败，请稍后重试",
			"data": nil,
		})
		return
	}
	if env != nil && TryJSONSessionRecover(c, env.Code) {
		env, err = playletser.HistoryClear(c)
		if err != nil {
			log.Error("playlet history clear retry failed", log.E(err))
			c.JSON(http.StatusOK, gin.H{
				"code": 500,
				"msg":  "history clear failed",
				"tip":  "清空失败，请稍后重试",
				"data": nil,
			})
			return
		}
	}
	if env == nil || env.Code != 200 {
		tip := "清空失败"
		msg := ""
		code := 500
		if env != nil {
			code = env.Code
			msg = env.Msg
			tip = firstNonEmpty(env.Tip, env.Msg, tip)
		}
		c.JSON(http.StatusOK, gin.H{
			"code": code,
			"msg":  msg,
			"tip":  tip,
			"data": nil,
		})
		return
	}

	c.JSON(http.StatusOK, gin.H{
		"code": 200,
		"msg":  firstNonEmpty(env.Msg, "success"),
		"tip":  firstNonEmpty(env.Tip, "已清空观看历史"),
		"data": env.Data,
	})
}