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;
using MonoGameView.DataModels.Models;

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

        private GarbageType _typeOfGarbage;

        public void Invoke(IGarbageCollector _garbageCollector, object [,] grid)
        {
            
            var _garbageLocalization = (IGarbageLocalization) grid[_garbageCollector.Coords.X, _garbageCollector.Coords.Y];
            if(_garbageCollector.Coords != _garbageLocalization.Coords)
                throw new WrongPositionException("Śmieciarka nie jest w miejscu oderbania śmieci");

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

            if (_garbageCollector.TrashContainers.All(c => c.TypeOfGarbage.GarbageType != _typeOfGarbage))
                throw new TrashContainerNotFound($"Nie znaleziono kontenera na {_typeOfGarbage}.");

            _garbageCollector.TrashContainers.First(t => t.TypeOfGarbage.GarbageType == _typeOfGarbage).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));
                }
            }
            if (_garbageLocalization.TrashCans.All(x => x.FillPercent == 0.0))
                grid[_garbageCollector.Coords.X, _garbageCollector.Coords.Y] = new EmptyHouse(new Coords(_garbageCollector.Coords.X, _garbageCollector.Coords.Y));
        }
    }
}