using System;
using System.Collections.Generic;
using System.Linq;
using Zepheus.FiestaLib;
using Zepheus.FiestaLib.Data;
using Zepheus.FiestaLib.SHN;
using Zepheus.Util;

namespace Zepheus.World.Data
{
    [ServerModule(Util.InitializationStage.DataStore)]
    public sealed class DataProvider
    {
        public static DataProvider Instance { get; private set; }
        public List<string> BadNames { get; private set; }
        public Dictionary<ushort, MapInfo> Maps { get; private set; }
        public Dictionary<Job, BaseStatsEntry> JobBasestats { get; private set; }
        public Dictionary<int, WorldGuild> Guilds { get; private set; }
        private string folder;

        public DataProvider(string path)
        {
            folder = path;
            LoadMaps();
            LoadBasestats();
            LoadBadNames();
        }

        private void LoadMaps()
        {
            Maps = new Dictionary<ushort, MapInfo>();
            using (DataTableReaderEx reader = new DataTableReaderEx(new SHNFile(folder + @"\MapInfo.shn")))
            {
                while (reader.Read())
                {
                    MapInfo info = MapInfo.Load(reader);
                    if (Maps.ContainsKey(info.ID))
                    {
                        Log.WriteLine(LogLevel.Debug, "Duplicate map ID {0} ({1})", info.ID, info.FullName);
                        Maps.Remove(info.ID);
                    }
                    Maps.Add(info.ID, info);
                }
            }
        }

        private void LoadGuilds()
        {
            Guilds = new Dictionary<int, WorldGuild>();
            foreach (var v in Program.Entity.Guilds)
            {
                Guilds.Add(v.ID, new WorldGuild(v));
            }
        }

        public void LoadBasestats()
        {
            JobBasestats = new Dictionary<Job, BaseStatsEntry>();
            JobBasestats.Add(Job.Archer, new BaseStatsEntry
            {
                Level = 1,
                Str = 4,
                End = 4,
                Dex = 6,
                Int = 1,
                Spr = 3,
                MaxHPStones = 13,
                MaxSPStones = 11,
                MaxHP = 46,
                MaxSP = 24
            });
            JobBasestats.Add(Job.Cleric, new BaseStatsEntry
            {
                Level = 1,
                Str = 5,
                End = 4,
                Dex = 3,
                Int = 1,
                Spr = 4,
                MaxHPStones = 15,
                MaxSPStones = 11,
                MaxHP = 46,
                MaxSP = 32
            });
            JobBasestats.Add(Job.Fighter, new BaseStatsEntry
            {
                Level = 1,
                Str = 6,
                End = 5,
                Dex = 3,
                Int = 1,
                Spr = 1,
                MaxHPStones = 15,
                MaxSPStones = 7,
                MaxHP = 52,
                MaxSP = 10
            });
            JobBasestats.Add(Job.Mage, new BaseStatsEntry
            {
                Level = 1,
                Str = 1,
                End = 3,
                Dex = 3,
                Int = 10,
                Spr = 5,
                MaxHPStones = 12,
                MaxSPStones = 15,
                MaxHP = 42,
                MaxSP = 46
            });
            JobBasestats.Add(Job.Trickster, new BaseStatsEntry
            {
                Level = 1,
                Str = 5,
                End = 5,
                Dex = 4,
                Int = 1,
                Spr = 3,
                MaxHPStones = 15,
                MaxSPStones = 11,
                MaxHP = 48,
                MaxSP = 21
            });
        }

        public List<ushort> GetMapsForZone(int id)
        {
            int zonecount = Settings.Instance.ZoneCount;
            if (id == zonecount - 1) //Kindom provider
            {
                List<ushort> toret = new List<ushort>();
                foreach (var map in Maps.Values.Where(m => m.Kingdom > 0))
                {
                    toret.Add(map.ID);
                }
                return toret;
            }
            else
            {
                List<ushort> normalmaps = new List<ushort>();
                foreach (MapInfo map in Maps.Values.Where(m => m.Kingdom == 0))
                {
                    normalmaps.Add(map.ID);
                }
                int splitmaps = normalmaps.Count / (zonecount - 1); //normal map zones = total - 1
                List<ushort> toret = new List<ushort>();
                for (int i = id * splitmaps; i < (splitmaps * id) + splitmaps; i++)
                {
                    toret.Add(normalmaps[i]);
                }
                return toret;
            }
        }

        private void LoadBadNames()
        {
            BadNames = new List<string>();
            using (var file = new SHNFile(folder + @"\BadNameFilter.shn"))
            {
                using (DataTableReaderEx reader = new DataTableReaderEx(file))
                {
                    while (reader.Read())
                    {
                        // Columns: BadName Type
                        BadNames.Add(reader.GetString("BadName").ToLower());
                    }
                }
            }
            Log.WriteLine(LogLevel.Info, "Loaded {0} bad names.", BadNames.Count);
        }

        public bool IsBadName(string input)
        {
            input = input.ToLower();
            foreach (var badname in BadNames)
            {
                if (input.Contains(badname))
                {
                    return true;
                }
            }
            return false;
        }

        [InitializerMethod]
        public static bool Load()
        {
            try
            {
                Instance = new DataProvider(Settings.Instance.DataFolder ?? "Data");
                Log.WriteLine(LogLevel.Info, "DataProvider initialized successfully!");
                return true;
            }
            catch (Exception ex)
            {
                Log.WriteLine(LogLevel.Exception, "Error loading DataProvider: {0}", ex.ToString());
                return false;
            }
        }
    }
}