using Shared.Engine.RxEnumerate;
using Shared.Models.SISI.Base;
using Shared.Models.SISI.OnResult;
using Shared.Models.SISI.Xvideos;
using System.Text.Json;
using System.Text.RegularExpressions;
using System.Web;

namespace Shared.Engine.SISI
{
    public static class XnxxTo
    {
        public static string Uri(string host, string search, int pg)
        {
            if (!string.IsNullOrWhiteSpace(search))
                return $"{host}/search/{HttpUtility.UrlEncode(search)}/{pg}";

            return $"{host}/best/{DateTime.Today.AddMonths(-1):yyyy-MM}/{pg}";
        }

        #region Playlist
        public static List<PlaylistItem> Playlist(string route, ReadOnlySpan<char> html, Func<PlaylistItem, PlaylistItem> onplaylist = null)
        {
            if (html.IsEmpty)
                return null;

            var rx = Rx.Split("<div id=\"video_", html, 1);
            if (rx.Count == 0)
                return null;

            var playlists = new List<PlaylistItem>(rx.Count);

            foreach (var row in rx.Rows())
            {
                var g = row.Groups("<a href=\"/(video-[^\"]+)\" title=\"([^\"]+)\"");

                if (!string.IsNullOrEmpty(g[1].Value) && !string.IsNullOrWhiteSpace(g[2].Value))
                {
                    string img = row.Match("data-src=\"([^\"]+)\"").Replace(".THUMBNUM.", ".1.") ?? string.Empty;

                    // https://cdn77-pic.xvideos-cdn.com/videos/thumbs169ll/5a/6d/4f/5a6d4f718214eebf73225ec96b670f62-2/5a6d4f718214eebf73225ec96b670f62.27.jpg
                    // https://cdn77-pic.xvideos-cdn.com/videos/videopreview/5a/6d/4f/5a6d4f718214eebf73225ec96b670f62_169.mp4
                    string preview = Regex.Replace(img, "/thumbs[^/]+/", "/videopreview/") ?? string.Empty;
                    preview = Regex.Replace(preview, "/[^/]+$", "");
                    preview = Regex.Replace(preview, "-[0-9]+$", "");

                    var pl = new PlaylistItem()
                    {
                        name = g[2].Value,
                        video = $"{route}?uri={g[1].Value}",
                        picture = img,
                        preview = preview + "_169.mp4",
                        time = row.Match("</span>([^<]+)<span class=\"video-hd\">", trim: true),
                        quality = row.Match("<span class=\"superfluous\"> - </span>([^<]+)</span>"),
                        json = true,
                        related = true,
                        bookmark = new Bookmark()
                        {
                            site = "xnx",
                            href = g[1].Value,
                            image = img
                        }
                    };

                    if (onplaylist != null)
                        pl = onplaylist.Invoke(pl);

                    playlists.Add(pl);
                }
            }

            return playlists;
        }
        #endregion

        #region Menu
        public static List<MenuItem> Menu(string host)
        {
            host = string.IsNullOrWhiteSpace(host) ? string.Empty : $"{host}/";

            return new List<MenuItem>()
            {
                new MenuItem()
                {
                    title = "Поиск",
                    search_on = "search_on",
                    playlist_url = host + "xnx",
                }
            };
        }
        #endregion

        #region StreamLinks
        public static string StreamLinksUri(string host, string url)
        {
            if (string.IsNullOrWhiteSpace(url))
                return null;

            return $"{host}/{Regex.Replace(url ?? string.Empty, "^([^/]+)/.*", "$1/_")}";
        }

        public static StreamItem StreamLinks(ReadOnlySpan<char> html, string route, Func<string, Task<string>> onm3u = null)
        {
            if (html.IsEmpty)
                return null;

            string stream_link = Rx.Match(html, "html5player\\.setVideoHLS\\('([^']+)'\\);");
            if (string.IsNullOrWhiteSpace(stream_link))
                return null;

            #region getRelated
            List<PlaylistItem> getRelated(ReadOnlySpan<char> html)
            {
                string json = Rx.Match(html, "video_related=([^\n\r]+);window");
                if (string.IsNullOrWhiteSpace(json) || !json.StartsWith("[") || !json.EndsWith("]"))
                    return new List<PlaylistItem>();

                var related = new List<PlaylistItem>(40);

                try
                {
                    foreach (var r in JsonSerializer.Deserialize<List<Related>>(json))
                    {
                        if (string.IsNullOrEmpty(r.tf) || string.IsNullOrEmpty(r.u) || string.IsNullOrEmpty(r.i))
                            continue;

                        related.Add(new PlaylistItem()
                        {
                            name = r.tf,
                            video = $"{route}?uri={r.u.Remove(0, 1)}",
                            picture = r.i,
                            json = true,
                            related = true,
                            bookmark = new Bookmark()
                            {
                                site = "xnx",
                                href = r.u.Remove(0, 1),
                                image = r.i
                            }
                        });
                    }
                }
                catch { }

                return related;
            }
            #endregion

            return new StreamItem()
            {
                qualitys = new Dictionary<string, string>()
                {
                    ["auto"] = stream_link
                },
                recomends = getRelated(html)
            };

            //string m3u8 = onm3u == null ? null : await onm3u.Invoke(stream_link);
            //if (m3u8 == null)
            //{
            //    return new StreamItem()
            //    {
            //        qualitys = new Dictionary<string, string>()
            //        {
            //            ["auto"] = stream_link
            //        },
            //        recomends = getRelated()
            //    };
            //}

            //var stream_links = new Dictionary<int, string>();
            //foreach (Match m in Regex.Matches(m3u8, "(hls-(2160|1440|1080|720|480|360)p[^\n\r\t ]+)"))
            //{
            //    string hls = m.Groups[1].Value;
            //    if (string.IsNullOrEmpty(hls))
            //        continue;

            //    hls = $"{Regex.Replace(stream_link, "/hls\\.m3u.*", "")}/{hls}".Replace("https:", "http:");
            //    stream_links.Add(int.Parse(m.Groups[2].Value), hls);
            //}

            //return new StreamItem()
            //{
            //    qualitys = stream_links.OrderByDescending(i => i.Key).ToDictionary(k => $"{k.Key}p", v => v.Value),
            //    recomends = getRelated()
            //};
        }
        #endregion
    }
}