using Godot;
using System;
using System.Collections.Generic;
using System.Linq;

public partial class Worker : Area2D
{
	// [Signal]
	// public delegate void SwapPositionsEventHandler(Worker THIS);

	public bool _dead = false, _hovered = false, _held = false, _selected = false;
	public int _size, _health, _healthMax;
	public float _distanceTraveled, _stamina, _staminaMax;
	public Stat _aptitude = new(), _agility = new(), _ardor = new(), _accumen = new(), _awareness = new(), _appeal = new();
	public float _rotationalForce = 0;
	public Sprite2D _image;
	public ProgressBar _healthBar;
	public Manager _manager;
	public Cell _cell;
	public List<Trait> _traits = new();
	public override void _Ready()
	{
		_size = (int)(((CircleShape2D)GetNode<CollisionShape2D>("Bounds").Shape).Radius);

		_aptitude._default = 5;
		_agility._default = 5;
		_ardor._default = 5;
		_accumen._default = 5;
		_awareness._default = 5;
		_appeal._default = 5;

		_aptitude._effective = _aptitude._default;
		_agility._effective = _agility._default;
		_ardor._effective = _ardor._default;
		_accumen._effective = _accumen._default;
		_awareness._effective = _awareness._default;
		_appeal._effective = _appeal._default;

		_image = GetNode<Sprite2D>("Sprite2D");

		_traits.Add(new BasicAttack(this));

		// _healthBar = GetNode<ProgressBar>("HealthBar");
		// _healthBar.MaxValue = _healthMax;
		// _healthBar.Value = _health;
	}

	public override void _Process(double DELTA_)
	{
		if (_hovered)
		{
			if (Input.IsActionJustPressed("left_click"))
			{
				Hold();
			}
		}
		if (_held)
		{
			GlobalPosition = GetGlobalMousePosition();
			if (Input.IsActionJustReleased("left_click"))
			{
				Drop();
			}
		}

	}

	// public void ChangeHealth(int CHANGE, Node CHANGEMAKER)
	// {
	// 	if (_health <= 0 && CHANGE < 0)
	// 	{
	// 		// knock the piece off the board and out for the round!
	// 		// process on knockout
	// 	}
	// 	_health += CHANGE;
	// 	_healthBar.Value = _health;
	// 	if (_health <= 0)
	// 	{
	// 		Sleeping = true;
	// 		_dead = true;
	// 		_health = 0;
	// 		FireActions(Trigger.On.Death, _manager);
	// 	}
	// }

	public void Drop()
	{
		if (_held)
		{
			_held = false;
			GlobalPosition = _cell.GlobalPosition;
		}
	}

	public void FireActions(Trigger.On TRIGGER, Worker TARGET = null)
	{
		for (int i = 0; i < _traits.Count; i++)
		{
			if (_traits[i]._triggers.Contains(TRIGGER))
			{
				_traits[i].Target(TARGET);
				_traits[i].Fire();
			}
		}
	}

	// public bool HasCondition(string CONDITION)
	// {
	// 	List<string> conditionNames = _conditions.GetChildren().Select(c => c.GetType().ToString()).ToList();
	// 	return conditionNames.Contains(CONDITION);
	// }

	public void Hold()
	{
		if (_held)
		{
			return;
		}
		_held = true;
	}

	public void ResetStats()
	{
		_aptitude._effective = _aptitude._default;
		_agility._effective = _agility._default;
		_ardor._effective = _ardor._default;
		_accumen._effective = _accumen._default;
		_awareness._effective = _awareness._default;
		_appeal._effective = _appeal._default;
	}

	public void SwapWith(Worker OTHERWORKER)
	{
		Cell thisCell = _cell, otherCell = OTHERWORKER._cell;

		OTHERWORKER.GlobalPosition = thisCell.GlobalPosition;
		_cell = otherCell;
		OTHERWORKER._cell = thisCell;
		
		int indexA = _manager._workers.IndexOf(this), indexB = _manager._workers.IndexOf(OTHERWORKER);
		Worker placeholder = this;
		_manager._workers[indexA] = OTHERWORKER;
		_manager._workers[indexB] = placeholder;
	}

	// PRIVATE METHODS

	private void OnAreaEntered(Area2D AREA)
	{
		if (AREA is Worker)
		{
			if (_held)
			{
				SwapWith((Worker)AREA);
			}
		}
	}
	private void OnMouseEntered()
	{
		_hovered = true;
	}

	private void OnMouseExited()
	{
		_hovered = false;
	}

	// private void OnBodyEntered(Node NODE)
	// {
	// 	if (NODE is Worker)
	// 	{
	// 		FireActions(Trigger.On.Collision, NODE);

	// 		_rotationalForce *= 0.8f;
	// 		Vector2 rotatedForce = LinearVelocity.Rotated(((Worker)NODE)._rotationalForce);

	// 		ApplyCentralForce(rotatedForce);
	// 	}
	// 	else if (NODE is Tchotchke)
	// 	{
	// 		Tchotchke tchotchke = (Tchotchke)NODE;
	// 		tchotchke.FireActions(Trigger.On.Collision, this);
	// 	}
	// }

}