using Godot;

namespace Newlon.Components.Level;

[GlobalClass]
public partial class LevelRunner : Node
{
	private AdventureLevelResource resource;
	[Export] private RowSpawner rowSpawner;
	[Export] private Timer waveTimer;
	private int waveIndex = -1;
	[Signal] public delegate void ResourceChangedEventHandler(AdventureLevelResource resource);
	[Signal] public delegate void WaveChangedEventHandler(int to);

    public override void _Ready()
	{
		waveTimer.Timeout += SummonWave;
	}

	public void SetLevelResource(AdventureLevelResource data)
	{
		resource = data;
		waveTimer.Stop();
		waveTimer.WaitTime = resource.initialWaveDelay;
		waveTimer.Start();
		EmitSignal(SignalName.ResourceChanged, resource);
	}

	private void SummonWave()
	{
		waveIndex += 1;
		EmitSignal(SignalName.WaveChanged, waveIndex);
		rowSpawner.Add(resource.waves[waveIndex].zombiesOrdered);

		if (waveIndex == resource.waves.Count - 1) return;

		waveTimer.WaitTime = resource.waves[waveIndex].customWaveDelay > 0 ? resource.waves[waveIndex].customWaveDelay : resource.standardWaveDelay;
		waveTimer.Start();
	}
}