using Godot;
using System;
using System.Linq;
using Babushka.scripts.CSharp.Common.WorldManagement;

public partial class WorldContainer : Node
{
    [Export] private PackedScene startingWorld;
    [Export] private SpawnPointResource startingSpawnPoint;
    
    [Signal] public delegate void WorldChangedEventHandler(Vector3 spawnPointPosition);

    public void SwitchWorld(PackedScene newWorldScene, SpawnPointResource spawnPoint)
    {
        // Unload the current world
        if (GetChildCount() > 0)
        {
            GetChild(0).QueueFree();
        }

        // Load the new world
        var newWorld = newWorldScene.Instantiate<World>();
        AddChild(newWorld);

        // Switch to the new spawn point
        if (newWorld.SpawnPoints.TryGetValue(spawnPoint, out var spawnPointMarker))
        {
            EmitSignalWorldChanged(spawnPointMarker.GlobalPosition);
        }
        else
        {
            GD.PrintErr("Selected spawn point not found in the new world.");
            EmitSignalWorldChanged(newWorld.SpawnPoints.First().Value.GlobalPosition);
        }
    }

    public override void _Ready()
    {
        SwitchWorld(startingWorld,startingSpawnPoint);
    }
}