using Godot;
using System.Collections.Generic;

public partial class EnemySpawner : Node
{
    public static EnemySpawner Instance;

    [Export] private Node _pathParent;
    [Export] private EnemyPool _pool;

    private readonly List<Path2D> _paths = new();

    public int EnemiesSpawned = 0;

    public override void _Ready()
    {
        Instance = this;

        foreach (var c in _pathParent.GetChildren())
            if (c is Path2D p)
                _paths.Add(p);

        // for (int i = 0; i < 10; i++)
        //     SpawnWithDelay(i * 0.33f);
    }

    public async void SpawnWithDelay(float t)
    {
        await ToSignal(GetTree().CreateTimer(t), SceneTreeTimer.SignalName.Timeout);
        Spawn();
    }

    private void Spawn()
    {
        if (_paths.Count == 0) return;

        var path = _paths[GD.RandRange(0, _paths.Count - 1)];
        var type = _pool.GetRandomType();
        var enemy = _pool.Get(type);

        if (enemy == null) return;

        path.AddChild(enemy);
    }
}