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.GeneralModels.Models;
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;
        }
        public int ID { get
            {
                return (int) _typeOfGarbage;
            } }
        private GarbageType _typeOfGarbage;

        public bool Invoke(IGarbageCollector _garbageCollector, ICloneable [,] grid)
        {
            
            var _garbageLocalization = (IGarbageLocalization) grid[_garbageCollector.Coords.X, _garbageCollector.Coords.Y];
            
            var trashCans = _garbageLocalization.TrashCans.Where(t => t.TypeOfGarbage.GarbageType == _typeOfGarbage);
            if (!trashCans.Any()) return false;
            var mainCan = _garbageCollector
                .TrashContainers
                .Where(x => x.TypeOfGarbage.GarbageType == _typeOfGarbage)
                .First();
            var maxVolume = mainCan.MaxVolume - mainCan.Garbage.Weight;
            var preGarbage = trashCans.Select(t => t.TakeGarbage(maxVolume)).ToList();
            if (preGarbage.Any(x => x == null)) return false;
            var garbage = preGarbage.Aggregate((a,b)=>a+b);

            if (_garbageCollector.TrashContainers.All(c => c.TypeOfGarbage.GarbageType != _typeOfGarbage))
                return false;

            var r = _garbageCollector.TrashContainers.First(t => t.TypeOfGarbage.GarbageType == _typeOfGarbage).AddGarbage(garbage);
            if (!r) return false;
            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 || x.FillPercent == double.NaN))
            {
                grid[_garbageCollector.Coords.X, _garbageCollector.Coords.Y] = new EmptyHouse(new Coords(_garbageCollector.Coords.X, _garbageCollector.Coords.Y));

                _garbageCollector.HouseCounter++;
            }
            _garbageCollector.Counter = 0;
            return true;
        }
    }
}