// Package h5path 统一拼装花魁 NET H5 的页面路径。
// Abs 保持原有无尾斜杠规范，SitemapAbs 专用于 sitemap 页面 URL
package h5path

import (
	"hkdj-web-server/pub/common/utils"
	"net/url"
	"strconv"
	"strings"
)

// Public page prefixes shared by sitemap, API canonical metadata and SEO push.
const (
	DramaListPath     = "/dramas"
	DramaPath         = "/drama"
	CollectionsPath   = "/collections"
	CollectionPath    = "/collection"
	SeriesPath        = "/series"
	SeriesWatchPath   = "/series/watch"
	TagsPath          = "/tags"
	CuratedDramasPath = "/curated/dramas"
	CuratedSeriesPath = "/curated/series"
	RankingsPath      = "/rankings"
	LatestPath        = "/latest"
	FeaturedPath      = "/featured"
)

// Segment receives a raw model slug. Escape exactly once so slashes, queries and
// percent signs remain part of that single segment, matching the H5 route helper.
func Segment(slug string, id int64) string {
	return url.PathEscape(utils.PathSegment(slug, id))
}

// Entity 拼 /{prefix}/{slug|id}，无有效段时只返回 prefix。
func Entity(prefix, slug string, id int64) string {
	prefix = "/" + strings.Trim(prefix, "/")
	if segment := Segment(slug, id); segment != "" {
		return prefix + "/" + segment
	}
	return prefix
}

func Playlet(slug string, id int64) string {
	if Segment(slug, id) == "" {
		return ""
	}
	return Entity(DramaPath, slug, id)
}

func PlayletChapter(slug string, playletID, chapterID int64) string {
	base := Playlet(slug, playletID)
	if base == "" || chapterID <= 0 {
		return ""
	}
	return base + "/" + strconv.FormatInt(chapterID, 10)
}

func TopicDetail(slug string, id int64) string {
	if Segment(slug, id) == "" {
		return CollectionsPath
	}
	return Entity(CollectionPath, slug, id)
}

func Tag(slug string, id int64) string {
	if Segment(slug, id) == "" {
		return ""
	}
	return Entity(TagsPath, slug, id)
}

func ListTheme(slug string, id int64) string {
	if Segment(slug, id) == "" {
		return DramaListPath
	}
	return Entity(DramaListPath, slug, id)
}

func VideoPlay(slug string, id int64) string {
	if Segment(slug, id) == "" {
		return ""
	}
	return Entity(SeriesWatchPath, slug, id)
}

func MoreList(slug string, id int64) string {
	if Segment(slug, id) == "" {
		return ""
	}
	return Entity(CuratedDramasPath, slug, id)
}

func MoreSeriesList(slug string, id int64) string {
	if Segment(slug, id) == "" {
		return ""
	}
	return Entity(CuratedSeriesPath, slug, id)
}

func SeriesTopic(topicID int64) string {
	if topicID <= 0 {
		return SeriesPath
	}
	return SeriesPath + "/all/" + strconv.FormatInt(topicID, 10) + "/1"
}

// Abs 拼绝对地址。首页保留尾斜杠，其余页面与 H5 路由一致、不带尾斜杠。
func Abs(webAddr, path string) string {
	path = strings.TrimSpace(path)
	if path == "" || path == "/" {
		return utils.JoinUrlPathKeepSlash(webAddr, "/")
	}
	return utils.JoinUrlPathKeepSlash(webAddr, "/"+strings.Trim(path, "/"))
}

// SitemapAbs 拼 sitemap 页面绝对地址，统一保留尾斜杠
func SitemapAbs(webAddr, path string) string {
	path = strings.TrimSpace(path)
	if path == "" || path == "/" {
		return utils.JoinUrlPathKeepSlash(webAddr, "/")
	}
	return utils.JoinUrlPathKeepSlash(webAddr, "/"+strings.Trim(path, "/")+"/")
}