using System;
using System.Collections.Generic;
using System.Globalization;
using System.Text;
using System.Text.RegularExpressions;
using System.Threading.Tasks;
using AngleSharp.Dom;
using AngleSharp.Html.Parser;
using Jackett.Common.Helpers;
using Jackett.Common.Models;
using Jackett.Common.Models.IndexerConfig;
using Jackett.Common.Services.Interfaces;
using Jackett.Common.Utils;
using Newtonsoft.Json.Linq;
using NLog;

namespace Jackett.Common.Indexers
{
    public class Hebits : BaseWebIndexer
    {
        private string LoginUrl => SiteLink + "login.php";
        private string LoginPostUrl => SiteLink + "takeloginAjax.php";
        private string SearchUrl => SiteLink + "browse.php?sort=4&type=desc";

        private new ConfigurationDataBasicLogin configData
        {
            get => (ConfigurationDataBasicLogin)base.configData;
            set => base.configData = value;
        }

        public Hebits(IIndexerConfigurationService configService, Utils.Clients.WebClient wc, Logger l, IProtectionService ps)
            : base(name: "Hebits",
                description: "The Israeli Tracker",
                link: "https://hebits.net/",
                caps: TorznabUtil.CreateDefaultTorznabTVCaps(),
                configService: configService,
                client: wc,
                logger: l,
                p: ps,
                downloadBase: "https://hebits.net/",
                configData: new ConfigurationDataBasicLogin())
        {
            Encoding = Encoding.GetEncoding("windows-1255");
            Language = "he-il";
            Type = "private";

            AddCategoryMapping(19, TorznabCatType.MoviesSD);
            AddCategoryMapping(25, TorznabCatType.MoviesOther); // Israeli Content
            AddCategoryMapping(20, TorznabCatType.MoviesDVD);
            AddCategoryMapping(36, TorznabCatType.MoviesBluRay);
            AddCategoryMapping(27, TorznabCatType.MoviesHD);

            AddCategoryMapping(7, TorznabCatType.TVSD); // Israeli SDTV
            AddCategoryMapping(24, TorznabCatType.TVSD); // English SDTV
            AddCategoryMapping(1, TorznabCatType.TVHD); // Israel HDTV
            AddCategoryMapping(37, TorznabCatType.TVHD); // Israel HDTV
        }

        public override async Task<IndexerConfigurationStatus> ApplyConfiguration(JToken configJson)
        {
            LoadValuesFromJson(configJson);
            var pairs = new Dictionary<string, string> {
                { "username", configData.Username.Value },
                { "password", configData.Password.Value }
            };

            // Get inital cookies
            CookieHeader = string.Empty;
            var result = await RequestLoginAndFollowRedirect(LoginPostUrl, pairs, CookieHeader, true, null, SiteLink);
            await ConfigureIfOK(result.Cookies, result.Content != null && result.Content.Contains("OK"), () =>
            {
                var parser = new HtmlParser();
                var dom = parser.ParseDocument(result.Content);
                var errorMessage = dom.TextContent.Trim();
                errorMessage += " attempts left. Please check your credentials.";
                throw new ExceptionWithConfigData(errorMessage, configData);
            });
            return IndexerConfigurationStatus.RequiresTesting;
        }

        protected override async Task<IEnumerable<ReleaseInfo>> PerformQuery(TorznabQuery query)
        {
            var releases = new List<ReleaseInfo>();
            var searchString = query.GetQueryString();
            var searchUrl = SearchUrl;

            if (!string.IsNullOrWhiteSpace(searchString))
            {
                searchUrl += "&search=" + WebUtilityHelpers.UrlEncode(searchString, Encoding);
            }
            string.Format(SearchUrl, WebUtilityHelpers.UrlEncode(searchString, Encoding));

            var cats = MapTorznabCapsToTrackers(query);
            if (cats.Count > 0)
            {
                foreach (var cat in cats)
                {
                    searchUrl += "&c" + cat + "=1";
                }
            }

            var response = await RequestStringWithCookies(searchUrl);
            try
            {
                var parser = new HtmlParser();
                var dom = parser.ParseDocument(response.Content);

                var rows = dom.QuerySelectorAll(".browse > div > div");

                foreach (var row in rows)
                {
                    var release = new ReleaseInfo();

                    var debug = row.InnerHtml;

                    release.MinimumRatio = 1;
                    release.MinimumSeedTime = 172800; // 48 hours

                    var qTitle = row.QuerySelector(".bTitle");
                    var titleParts = qTitle.TextContent.Split('/');
                    if (titleParts.Length >= 2)
                        release.Title = titleParts[1].Trim();
                    else
                        release.Title = titleParts[0].Trim();

                    var qDetailsLink = qTitle.QuerySelector("a[href^=\"details.php\"]");
                    release.Comments = new Uri(SiteLink + qDetailsLink.GetAttribute("href"));
                    release.Link = new Uri(SiteLink + row.QuerySelector("a[href^=\"download.php\"]").GetAttribute("href"));
                    release.Guid = release.Link;

                    var dateString = row.QuerySelector("div:last-child").TextContent.Trim();
                    var pattern = "\\d{4}-\\d{2}-\\d{2} \\d{2}:\\d{2}:\\d{2}";
                    var match = Regex.Match(dateString, pattern);
                    if (match.Success)
                    {
                        release.PublishDate = DateTime.ParseExact(match.Value, "yyyy-MM-dd HH:mm:ss", CultureInfo.InvariantCulture);
                    }

                    var sizeStr = row.QuerySelector(".bSize").TextContent;
                    release.Size = ReleaseInfo.GetBytes(sizeStr);
                    release.Seeders = ParseUtil.CoerceInt(row.QuerySelector(".bUping").TextContent.Trim());
                    release.Peers = release.Seeders + ParseUtil.CoerceInt(row.QuerySelector(".bDowning").TextContent.Trim());

                    var files = row.QuerySelector("div.bFiles").LastChild.ToString();
                    release.Files = ParseUtil.CoerceInt(files);

                    var grabs = row.QuerySelector("div.bFinish").LastChild.ToString();
                    release.Grabs = ParseUtil.CoerceInt(grabs);

                    if (row.QuerySelector("img[src=\"/pic/free.jpg\"]") != null)
                        release.DownloadVolumeFactor = 0;
                    else
                        release.DownloadVolumeFactor = 1;

                    if (row.QuerySelector("img[src=\"/pic/triple.jpg\"]") != null)
                        release.UploadVolumeFactor = 3;
                    else if (row.QuerySelector("img[src=\"/pic/double.jpg\"]") != null)
                        release.UploadVolumeFactor = 2;
                    else
                        release.UploadVolumeFactor = 1;

                    releases.Add(release);
                }
            }
            catch (Exception ex)
            {
                OnParseError(response.Content, ex);
            }

            return releases;
        }
    }
}