package web

import (
	"fmt"
	"videoweb/app/service/playletser"
	"videoweb/app/service/videoser"

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

// Series 剧集列表页：GET /api/app/video/all/list + topic/list。
// 文档：http://172.104.181.99:25319/swagger/index.html#/视频相关接口/get_api_app_video_all_list
func Series(c *gin.Context) {
	q := videoser.ParseSeriesListQuery(c)
	topics := videoser.FetchVideoTopicListOrEmpty(c, q.MediaType)
	topicResolved := seriesTopicResolved(q, topics)
	raw := videoser.FetchVideoAllListOrEmpty(c, q)
	pageHeading, seoSelections := seriesSEOContext(q, topics)

	title := pageHeading + " - 黄果短剧"
	if raw != nil && raw.SeoInfo.Title != "" {
		title = raw.SeoInfo.Title
	}

	list := []videoser.VideoAllListItemResp(nil)
	total := int64(0)
	pageNum, pageSize := q.PageNum, q.PageSize
	var seo videoser.SeoInfo
	var advitise any
	if raw != nil {
		list = raw.List
		total = raw.TotalCount
		seo = raw.SeoInfo
		advitise = raw.Advitise
		if raw.PageNum > 0 {
			pageNum = raw.PageNum
		}
		if raw.PageSize > 0 {
			pageSize = raw.PageSize
		}
	}

	HTMLOK(c, "series.html", gin.H{
		"title":          title,
		"navActive":      "series",
		"seoInfo":        seo,
		"seoSelections":  seoSelections,
		"pageHeading":    pageHeading,
		"mediaType":      q.MediaType,
		"topicId":        q.TopicID,
		"sortType":       q.SortType,
		"seoEntityValid": topicResolved || total > 0,
		"topicList":      topics,
		"list":           list,
		"totalCount":     total,
		"pageNum":        pageNum,
		"pageSize":       pageSize,
		"listCount":      fmt.Sprintf("共 %d 部", total),
		"advitise":       advitise,
		"pagination":     videoser.BuildSeriesListPagination(q, total),
		"canonicalPath":  q.URL(),
	})
}

func seriesTopicResolved(q videoser.SeriesListQuery, topics []videoser.VideoTopicInfo) bool {
	if q.TopicID <= 0 {
		return true
	}
	for _, topic := range topics {
		if topic.ID == q.TopicID {
			return true
		}
	}
	return false
}

func seriesSEOContext(q videoser.SeriesListQuery, topics []videoser.VideoTopicInfo) (string, []playletser.SEOSelection) {
	heading := "剧集与动画"
	selections := make([]playletser.SEOSelection, 0, 3)
	if q.MediaType == videoser.MediaFilm || q.MediaType == videoser.MediaAnime {
		mediaName := videoser.MediaTypeLabel(q.MediaType)
		heading = mediaName
		selections = append(selections, playletser.SEOSelection{Dimension: "类型", Value: mediaName})
	}
	if q.TopicID > 0 {
		for _, topic := range topics {
			if topic.ID == q.TopicID {
				name := topic.DisplayName()
				if name != "" {
					heading = name + heading
					selections = append(selections, playletser.SEOSelection{Dimension: "题材", Value: name})
				}
				break
			}
		}
	}
	if q.SortType == videoser.SortHeat {
		selections = append(selections, playletser.SEOSelection{Dimension: "排序", Value: "最热"})
	} else if q.SortType == videoser.SortCollect {
		selections = append(selections, playletser.SEOSelection{Dimension: "排序", Value: "收藏最多"})
	}
	return heading, selections
}