using Godot;
using Newlon.Components.Zombies;
using System.Collections.Generic;

namespace Newlon.Components.Level;

public partial class ZombieLevelPreviewer : Node2D
{
	public void OnLevelStateChanged(RuntimeLevelData.LevelStates state)
	{
		switch (state)
		{
			case RuntimeLevelData.LevelStates.ChooseYourSeeds:
				SetupZombies();
				break;
			case RuntimeLevelData.LevelStates.Pregame:
				break;
			default:
				QueueFree();
				break;
		}
	}
	public void SetupZombies()
	{
		var to_spawn = FindUnique();

		foreach (var zombie in to_spawn)
		{
			var rng_x = (float)GD.RandRange(0.0, 2.0);
			var rng_y = (float)GD.RandRange(1.0, 5.0);

			var spawned = zombie.Scene.Instantiate<RuntimeZombieData>();
			spawned.DisableBrain();
			AddChild(spawned);
			spawned.Position += new Vector2(rng_x*Utility.TileWidth, rng_y*Utility.TileHeight);
		}
	}
	public List<ZombieResource> FindUnique()
	{
		List<ZombieResource> zombies = new();

		foreach (var wave in RuntimeLevelData.Instance.levelResource.waves)
		{
			foreach (var spawn in wave.zombiesOrdered)
			{
				foreach (var zombie in spawn.zombies)
				{
					if (zombie == null || zombies.Contains(zombie)) continue;
					zombies.Add(zombie);
				}
			}
		}

		return zombies;
	}
}