using System;
using System.Collections.Generic;
using MLEM.Textures;
using Newtonsoft.Json;

namespace TouchyTickets.Attractions {
    [JsonConverter(typeof(Converter))]
    public class AttractionType {

        public static readonly Dictionary<string, AttractionType> Attractions = new Dictionary<string, AttractionType>();

        static AttractionType() {
            Register(new AttractionType("Carousel", new[,] {{true}}, Attraction.Texture[0, 0, 1, 1], 0.5F, 50));
            Register(new AttractionType("FoodCourt", new[,] {{true, true}}, Attraction.Texture[1, 0, 2, 1], 1.1F, 300));
        }

        public readonly string Name;
        public readonly bool[,] Area;
        public int Width => this.Area.GetLength(1);
        public int Height => this.Area.GetLength(0);
        public readonly TextureRegion TextureRegion;
        public readonly float GenerationPerSecond;
        public readonly long InitialPrice;
        private readonly Constructor create;

        public AttractionType(string name, bool[,] area, TextureRegion texture, float generationPerSecond, long initialPrice, Constructor constructor = null) {
            this.Name = name;
            this.Area = area;
            this.TextureRegion = texture;
            this.GenerationPerSecond = generationPerSecond;
            this.InitialPrice = initialPrice;
            this.create = constructor ?? (t => new Attraction(t));
        }

        public Attraction Create() {
            return this.create(this);
        }

        private static void Register(AttractionType type) {
            Attractions[type.Name] = type;
        }

        public delegate Attraction Constructor(AttractionType type);

        public class Converter : JsonConverter<AttractionType> {

            public override void WriteJson(JsonWriter writer, AttractionType value, JsonSerializer serializer) {
                if (value != null)
                    writer.WriteValue(value.Name);
            }

            public override AttractionType ReadJson(JsonReader reader, Type objectType, AttractionType existingValue, bool hasExistingValue, JsonSerializer serializer) {
                return reader.Value != null ? Attractions[reader.Value.ToString()] : null;
            }

        }

    }
}