using Godot;
using System;

public partial class Spawner : Node3D
{
	[Export(PropertyHint.NodeType)]
	public PackedScene SceneToSpawn { get; set; }
	
	[Export]
	public Resource Inputs;
	[Export]
	public Node3D Target { get; set; }
	
	[Export(PropertyHint.Range, "0.1, 100, 0.1, or_greater")]
	public float SpawnInterval { get; set; } = 1.0f;
	[Export]
	public bool IsActiveOnStart { get; set; } = true;
	
	private float _spawnTimer;
	private bool _isActive;
	
	public override void _Ready()
	{
		_isActive = IsActiveOnStart;
		_spawnTimer = SpawnInterval;
	}

	public override void _Process(double delta)
	{
		if (!_isActive) return;
		
		_spawnTimer -= (float) delta;
		if (_spawnTimer <= 0) Spawn(); 
	}

	public void Spawn()
	{
		if (SceneToSpawn == null || !SceneToSpawn.CanInstantiate()) return;
		
		var spawnedInstance = SceneToSpawn.Instantiate() as FirstEnemy;
		if (spawnedInstance == null) return;
		
		spawnedInstance.Inputs = Inputs as EnemyInitInputs;
		spawnedInstance.Target = Target;
		GetTree().GetCurrentScene().AddChild(spawnedInstance);
		spawnedInstance.GlobalPosition = GlobalPosition;
		
		_spawnTimer = SpawnInterval;
	}
	
	public void StartSpawning()
	{
		_isActive = true;
		_spawnTimer = SpawnInterval;
	}
	
	public void StopSpawning()
	{
		_isActive = false;
	}
}