using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using CzokoŚmieciarka.MonoGameView.DataModels.Enums;
using CzokoŚmieciarka.MonoGameView.DataModels.Exceptions;
using CzokoŚmieciarka.MonoGameView.DataModels.Interfaces;
using CzokoŚmieciarka.MonoGameView.DataModels.Interfaces.GarbageCollector;
using CzokoŚmieciarka.MonoGameView.DataModels.Interfaces.TrashCans;

namespace CzokoŚmieciarka.MonoGameView.DataModels.Models.Steps
{
    public class SpillStep : IStep
    {
        public SpillStep(GarbageType typeOfGarbage)
        {
            this._typeOfGarbage = typeOfGarbage;
        }
      
        private GarbageType _typeOfGarbage;

        public void Invoke(IGarbageCollector _garbageCollector, object [,] grid)
        {
            var _dump = (ADump)grid[_garbageCollector.Coords.X, _garbageCollector.Coords.Y]; 
            if(_garbageCollector.Coords != _dump.Coords)
                throw new WrongPositionException("Śmieciarka nie na terenie podanego wyspiska");
            
            if(_dump.TypeOfGarbage.GarbageType != _typeOfGarbage)
                throw new TrashContainerNotFound($"Wysypisko nie przyjmuje smieci typu {_typeOfGarbage}");

            if(_garbageCollector.TrashContainers.All(c => c.TypeOfGarbage.GarbageType != _typeOfGarbage))
                throw new TrashContainerNotFound($"Smieciarka nie ma pojemnika na {_typeOfGarbage}!");

            var garbage = _garbageCollector.TrashContainers.Where(t => t.TypeOfGarbage.GarbageType == _typeOfGarbage)
                .Select(t => t.TakeGarbage())
                .Aggregate((a, b) => a + b);

            _dump.AddGarbage(garbage);
            for (int x = 0; x < grid.GetLength(0); x++)
            {
                for (int y = 0; y < grid.GetLength(1); y++)
                {
                    if (grid[x, y] is Road2) grid[x, y] = new Road1(new Coords(x, y));
                }
            }
        }
    }
}