using System;
using System.Collections.Generic;
using System.Collections.Specialized;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Jackett.Common.Models;
using Jackett.Common.Models.IndexerConfig;
using Jackett.Common.Services.Interfaces;
using Jackett.Common.Utils;
using Jackett.Common.Utils.Clients;
using Newtonsoft.Json;
using Newtonsoft.Json.Linq;
using NLog;
using static Jackett.Common.Models.IndexerConfig.ConfigurationData;

namespace Jackett.Common.Indexers
{
    public class Corsarored : BaseWebIndexer
    {
        private string APILatest { get { return SiteLink + "api/latests"; } }
        private string APISearch { get { return SiteLink + "api/search"; } }

        private Dictionary<string, string> APIHeaders = new Dictionary<string, string>()
        {
            {"Content-Type", "application/json"},
        };

        private readonly int MAX_SEARCH_PAGE_LIMIT = 8; // 1page 25 items, 200

        private new ConfigurationData configData
        {
            get { return (ConfigurationData)base.configData; }
            set { base.configData = value; }
        }

        public Corsarored(IIndexerConfigurationService configService, WebClient wc, Logger l, IProtectionService ps)
            : base(name: "Corsaro.red",
                   description: "Italian Torrents",
                   link: "https://corsaro.red/",
                   caps: new TorznabCapabilities(),
                   configService: configService,
                   client: wc,
                   logger: l,
                   p: ps,
                   configData: new ConfigurationData())
        {
            Encoding = Encoding.UTF8;
            Language = "it-it";
            Type = "public";

            //wc.requestDelay = 2.5;

            // TNTVillage cats
            AddCategoryMapping(1, TorznabCatType.TV, "TV");
            AddCategoryMapping(2, TorznabCatType.Audio, "Music");
            AddCategoryMapping(3, TorznabCatType.BooksEbook, "Books");
            AddCategoryMapping(4, TorznabCatType.Movies, "Movies");
            AddCategoryMapping(6, TorznabCatType.PC, "Software");
            AddCategoryMapping(7, TorznabCatType.TVAnime, "Anime");
            AddCategoryMapping(8, TorznabCatType.TVAnime, "Cartoons");
            AddCategoryMapping(9, TorznabCatType.PC, "Software");
            AddCategoryMapping(10, TorznabCatType.PC0day, "Software");
            AddCategoryMapping(11, TorznabCatType.PCGames, "Games");
            AddCategoryMapping(12, TorznabCatType.Console, "Games");
            AddCategoryMapping(13, TorznabCatType.Books, "Books");
            AddCategoryMapping(14, TorznabCatType.TVDocumentary, "Documentaries");
            AddCategoryMapping(21, TorznabCatType.AudioVideo, "Music Video");
            AddCategoryMapping(22, TorznabCatType.TVSport, "Sport");
            AddCategoryMapping(23, TorznabCatType.TV, "TV");
            AddCategoryMapping(24, TorznabCatType.TV, "TV");
            AddCategoryMapping(26, TorznabCatType.Console, "Games");
            AddCategoryMapping(27, TorznabCatType.Other, "Wallpaper");
            AddCategoryMapping(29, TorznabCatType.TV, "TV Series");
            AddCategoryMapping(30, TorznabCatType.BooksComics, "Comics");
            AddCategoryMapping(31, TorznabCatType.TV, "TV");
            AddCategoryMapping(32, TorznabCatType.Console, "Games");
            AddCategoryMapping(34, TorznabCatType.AudioAudiobook, "Audiobook");
            AddCategoryMapping(35, TorznabCatType.Audio, "Music");
            AddCategoryMapping(36, TorznabCatType.Books, "Books");
            AddCategoryMapping(37, TorznabCatType.PC, "Software");
        }

        public override async Task<IndexerConfigurationStatus> ApplyConfiguration(JToken configJson)
        {
            base.LoadValuesFromJson(configJson);
            var releases = await PerformQuery(new TorznabQuery());

            await ConfigureIfOK(String.Empty, releases.Count() > 0, () =>
            {
                throw new Exception("Could not find release from this URL.");
            });

            return IndexerConfigurationStatus.Completed;
        }

        private dynamic checkResponse(WebClientStringResult result)
        {
            try
            {
                dynamic json = JsonConvert.DeserializeObject<dynamic>(result.Content);

                if (json is JObject)
                    if (json["ok"] != null && ((bool)json["ok"]) == false)
                        throw new Exception("Server error");

                return json;
            }
            catch (Exception e)
            {
                logger.Error("checkResponse() Error: ", e.Message);
                throw new ExceptionWithConfigData(result.Content, configData);
            }
        }

        private async Task<dynamic> SendAPIRequest(List<KeyValuePair<string, string>> data)
        {
            var jsonData = JsonConvert.SerializeObject(data);
            var result = await PostDataWithCookiesAndRetry(APISearch, data, null, SiteLink, APIHeaders, null, true);
            return checkResponse(result);
        }

        private async Task<dynamic> SendAPIRequestLatest()
        {
            var result = await RequestStringWithCookiesAndRetry(APILatest, null, SiteLink, APIHeaders);
            return checkResponse(result);
        }

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

            var searchString = query.GetQueryString();
            var queryCollection = new List<KeyValuePair<string, string>>();
            int page = 0;

            if (!string.IsNullOrWhiteSpace(searchString))
                queryCollection.Add("term", searchString);
            else
            {
                // no term execute latest search
                var result = await SendAPIRequestLatest();

                try
                {
                    // this time is a jarray
                    JArray json = (JArray)result;

                    foreach (var torrent in json)
                    {
                        // add release
                        releases.Add(makeRelease(torrent));
                    }
                }
                catch (Exception ex)
                {
                    OnParseError(result.ToString(), ex);
                }

                return releases;
            }

            var cats = MapTorznabCapsToTrackers(query);
            if (cats.Count > 0)
                queryCollection.Add("category", string.Join(",", cats));
            else
                queryCollection.Add("category", "0");   // set ALL category

            // lazy horrible page initialization
            queryCollection.Add("page", page.ToString());

            do
            {
                // update page number
                queryCollection.RemoveAt(queryCollection.Count - 1); // remove last elem: page number 
                queryCollection.Add("page", (++page).ToString());

                var result = await SendAPIRequest(queryCollection);
                try
                {
                    // this time is a jobject
                    JObject json = (JObject)result;

                    if (json["results"] == null)
                        throw new Exception("Error invalid JSON response");

                    // check number result
                    if (((JArray)json["results"]).Count() == 0)
                        break;

                    foreach (var torrent in json["results"])
                    {
                        // add release
                        releases.Add( makeRelease(torrent) );
                    }
                }
                catch (Exception ex)
                {
                    OnParseError(result.ToString(), ex);
                }

            } while (page < MAX_SEARCH_PAGE_LIMIT);

            return releases;
        }

        private ReleaseInfo makeRelease(JToken torrent)
        {
            var release = new ReleaseInfo();

            release.Title = (String)torrent["title"];

            //https://corsaro.red/details/E5BB62E2E58C654F4450325046723A3F013CD7A4
            release.Comments = new Uri(SiteLink + "details/" + (string)torrent["hash"]);
            release.Guid = release.Comments;
            //release.Link = release.Comments;

            release.PublishDate = DateTime.Now;
            if (torrent["last_updated"] != null)
                release.PublishDate = DateTime.Parse((string)torrent["last_updated"]);

            // TODO: don't know how to map this cats..
            int cat = (int)torrent["category"];
            release.Category = MapTrackerCatToNewznab(cat.ToString());

            if (torrent["size"] != null)
                release.Size = (long)torrent["size"];

            release.Grabs = (long)torrent["completed"];

            release.Description = (string)torrent["category"] + " " + (string)torrent["description"];

            /*
            RageID = copyFrom.RageID;
            Imdb = copyFrom.Imdb;
            TMDb = copyFrom.TMDb;
            */

            release.Seeders = (int)torrent["seeders"];
            release.Peers = release.Seeders + (int)torrent["leechers"];

            release.InfoHash = (string)torrent["hash"];
            release.MagnetUri = new Uri((string)torrent["magnet"]);

            /*
            MinimumRatio = copyFrom.MinimumRatio;
            MinimumSeedTime = copyFrom.MinimumSeedTime;
            */

            release.DownloadVolumeFactor = 0;
            release.UploadVolumeFactor = 1;

            return release;
        }
    }
}