using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using static System.Windows.Forms.VisualStyles.VisualStyleElement;
using ProjectGasolineTanker.Drawings;
using ProjectGasolineTanker.Entities;

namespace ProjectGasolineTanker.MovementStratg
{
    public abstract class AbstractStrategy
    {

        private IMoveableObject? _moveableObject;

        private Status _state = Status.NotInit;

        protected int FieldWidth { get; private set; }

        protected int FieldHeight { get; private set; }

        public Status GetStatus() { return _state; }

        public void SetData(IMoveableObject moveableObject, int width, int height)
        {
            if (moveableObject == null)
            {
                _state = Status.NotInit;
                return;
            }
            _state = Status.InProgress;
            _moveableObject = moveableObject;
            FieldWidth = width;
            FieldHeight = height;
        }

        public void MakeStep()
        {
            if (_state != Status.InProgress)
            {
                return;
            }
            if (IsTargetDestinaion())
            {
                _state = Status.Finish;
                return;
            }
            MoveToTarget();
        }

        protected bool MoveLeft() => MoveTo(DirectionType.Left);

        protected bool MoveRight() => MoveTo(DirectionType.Right);

        protected bool MoveUp() => MoveTo(DirectionType.Up);

        protected bool MoveDown() => MoveTo(DirectionType.Down);

        protected ObjectParameters? GetObjectParameters => _moveableObject?.GetObjectPosition;

        protected int? GetStep()
        {
            if (_state != Status.InProgress)
            {
                return null;
            }
            return _moveableObject?.GetStep;
        }

        protected abstract void MoveToTarget();

        protected abstract bool IsTargetDestinaion();

        private bool MoveTo(DirectionType directionType)
        {
            if (_state != Status.InProgress)
            {
                return false;
            }
            if (_moveableObject?.CheckCanMove(directionType) ?? false)
            {
                _moveableObject.MoveObject(directionType);
                return true;
            }
            return false;
        }
    }



}