package web

import (
	"strings"
	"videoweb/app/service/authser"
	"videoweb/app/service/playletser"
	"videoweb/pub/common/useragent"

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

// Play 播放页 SSR：GET /api/app/playlet/chapter/detail；seoInfo 直接注入模板。
func Play(c *gin.Context) {
	playletKey := strings.TrimSpace(c.Param("slug"))
	requestedChapterID := strings.TrimSpace(c.Param("chapterId"))
	if playletKey == "" {
		NotFound(c, "未找到可播放内容")
		return
	}
	if requestedChapterID != "" && playletser.ParseDetailID(requestedChapterID) <= 0 {
		NotFound(c, "未找到该剧集")
		return
	}
	playlet := playletser.FetchDetailOrNilByKey(c, playletKey)
	if playlet == nil {
		NotFound(c, "未找到可播放内容")
		return
	}
	q := playletser.ParsePlayQuery(playletKey, c.Param("chapterId"))
	q.PlayletID = playlet.ID
	q.PlayletSlug = playlet.Slug

	q.ChapterID = playletser.ResolvePlayChapterID(playlet, q.ChapterID)
	if q.ChapterID <= 0 {
		NotFound(c, "未找到可播放内容")
		return
	}
	target := playletser.PlayPath(q.PlayletSlug, q.PlayletID)
	if q.ChapterID > 0 {
		target = playletser.ChapterPlayPath(q.PlayletSlug, q.PlayletID, q.ChapterID)
	}
	if redirectCanonical(c, target) {
		return
	}

	chapter := playletser.FetchChapterDetailOrNil(c, q.ChapterID, q.PlayletID, q.PlayletSlug)
	if chapter == nil {
		NotFound(c, "未找到该剧集")
		return
	}

	var episodeRanges []playletser.EpisodeRange
	var chapters []playletser.PlayletChapterData
	playletID := playlet.ID
	playletSlug := playlet.Slug
	chapters = playlet.PlayletChapterInfo
	episodeRanges = playletser.BuildEpisodeRanges(chapters, playlet.TotalEpisode, 30)

	if chapter != nil && useragent.TokenFromRequest(c.Request) != "" {
		authser.SetRechargeCookie(c, chapter.Balance)
	}

	seoInfo := playletser.ResolvePlayPageSEO(chapter, playlet)

	data := gin.H{
		"title":         playletser.ResolvePlayPageTitle(chapter, playlet),
		"chapter":       chapter,
		"playlet":       playlet,
		"playletID":     playletID,
		"playletSlug":   playletSlug,
		"seoInfo":       seoInfo,
		"chapters":      chapters,
		"episodeRanges": episodeRanges,
	}
	HTMLOK(c, "play.html", data)
}