using DominionBase.Enums;
using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.IO;
using System.Linq;

namespace DominionBase.Cards
{
	public class Preset
	{
		private readonly List<IRandomizable> _Cards = new List<IRandomizable>();

		public string Name { get; set; } = string.Empty;

		public string Sources
		{
			get
			{
				var sources = new List<Source>(Cards.Select(c => c.Source));
				foreach (var cards in CardCards.Values)
					sources.AddRange(cards.Select(c => c.Source));
				return string.Join(", ", sources.Distinct().OrderBy(s => s));
			}
		}
		public IList<IRandomizable> Cards => _Cards;
		public SerializableDictionary<IRandomizable, List<IRandomizable>> CardCards { get; } = new SerializableDictionary<IRandomizable, List<IRandomizable>>();
		public ColonyPlatinumSelected ColonyPlatinumSelected { get; internal set; } = ColonyPlatinumSelected.Unknown;
		public ShelterSelected ShelterSelected { get; internal set; } = ShelterSelected.Unknown;

		public Preset() { }

		public Preset(string name)
		{
			Name = name;
		}

		public override string ToString()
		{
			var sources = new List<Source>(Cards.Select(c => c.Source));
			foreach (var cards in CardCards.Values)
				sources.AddRange(cards.Select(c => c.Source));

			return $"{Name} - {string.Join(", ", sources.Distinct().OrderBy(s => s))}";
		}
	}

	public class PresetCollection : List<Preset>
	{
		private static string Filename => Path.Combine(Path.GetDirectoryName(Process.GetCurrentProcess().MainModule.FileName), "presets.txt");

		public static PresetCollection Parse()
		{
			var presets = new PresetCollection();

			var allCards = CardCollection.GetAllCards(c => c.Location == Location.Kingdom || c.Location == Location.LandscapeCard);

			try
			{
				using (var sr = new StreamReader(Filename))
				{
					Preset currentPreset = null;
					while (!sr.EndOfStream)
					{
						var line = sr.ReadLine().Trim();

						if (string.IsNullOrWhiteSpace(line) || line.StartsWith("#", StringComparison.InvariantCulture))
							continue;

						if (line.EndsWith(":", StringComparison.InvariantCulture))
						{
							currentPreset = new Preset(line.Substring(0, line.LastIndexOf(':')));
							presets.Add(currentPreset);
							continue;
						}

						if (line.Contains(":"))
						{
							var special = line.Split(new char[] { ':' }, StringSplitOptions.RemoveEmptyEntries);
							var specialKeyCard = allCards.SingleOrDefault(c => c.SpecialPresetKey == special[0].Trim());
							var specialCardName = special[1].Trim();
							specialKeyCard?.CheckSetup(currentPreset, specialCardName, allCards.SingleOrDefault(c => c.Name == specialCardName));
						}

						if (line == "Use Platinum/Colony")
						{
							currentPreset.ColonyPlatinumSelected = ColonyPlatinumSelected.Yes;
							continue;
						}

						if (line == "Use Shelters")
						{
							currentPreset.ShelterSelected = ShelterSelected.Yes;
							continue;
						}

						var foundCard = allCards.SingleOrDefault(c => c.Name == line);
						if (foundCard != null)
							currentPreset.Cards.Add(foundCard);
					}
					sr.Close();
				}
			}
			catch
			{
				// ignored
			}
			return presets;
		}
	}
}