using System;
using Godot;

namespace CodingLand.Scripts;

public partial class Multiplayer : Node
{
	[Export] public Node2D Playground;
	
	private void GameFreeze()
	{
		Playground.Hide();
		GetTree().Paused = true;
	}

	private void GameUnfreeze()
	{
		Playground.Show();
		Playground.GetNode<Camera2D>("Camera2D").Enabled = true;
		GetTree().Paused = false;
	}
	
	public override void _Ready()
	{
		GameFreeze();
		
		if (DisplayServer.GetName() == "headless")
		{
			GD.Print("Starting server in headless mode...");
			StartAsServer(4343);
		}
	}

	public bool StartAsServer(int port)
	{
		var peer = new ENetMultiplayerPeer();
		peer.CreateServer(port);
		if (peer.GetConnectionStatus() == MultiplayerPeer.ConnectionStatus.Disconnected)
		{
			GD.PrintErr("Failed to start multiplayer server...");
			OS.Alert("Failed to start multiplayer server...");
			return false;
		}

		Multiplayer.MultiplayerPeer = peer;
		GameUnfreeze();

		return true;
	}

	public bool StartAsClient(string addr, int port)
	{
		if (string.IsNullOrEmpty(addr)) return false;
		
		var peer = new ENetMultiplayerPeer();
		peer.CreateClient(addr, port);
		if (peer.GetConnectionStatus() == MultiplayerPeer.ConnectionStatus.Disconnected)
		{
			var info = $"Unable to connect multiplayer server {addr}:{port}";
			GD.PrintErr(info);
			OS.Alert(info);
			return false;
		}

		Multiplayer.MultiplayerPeer = peer;
		GameUnfreeze();
		
		return true;
	}

}