using Godot;
using System;

public partial class Spawner : Node3D
{
	[Export(PropertyHint.NodeType)]
	public PackedScene EnemyToSpawn { get; set; }
	
	[Export]
	public RMovement MovementInputs { get; set; }
	[Export]
	public RHealth HealthInputs { get; set; }
	[Export]
	public RDamage DamageInputs { get; set; }
	
	[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 (EnemyToSpawn == null || !EnemyToSpawn.CanInstantiate()) return;

		if (EnemyToSpawn.Instantiate() is not Enemy spawnedInstance) return;

		spawnedInstance.Target = Target;
		spawnedInstance.RMovement = MovementInputs;
		spawnedInstance.RDamage = DamageInputs;
		spawnedInstance.RHealth = HealthInputs;
		spawnedInstance.Initialize();

		GetTree().GetCurrentScene().AddChild(spawnedInstance);
		spawnedInstance.GlobalPosition = GlobalPosition;
		
		_spawnTimer = SpawnInterval;
	}
	
	public void StartSpawning()
	{
		_isActive = true;
		_spawnTimer = SpawnInterval;
	}
	
	public void StopSpawning()
	{
		_isActive = false;
	}
}