/*
Starts a game on the server, this also acts as the `JoinGame` event for the
host, except that it doesn't send any events out to other players as there
are none yet.

Emissions:
	HostInformation - Data containing if the game created successfully or not
		and the game code for the game if it was successful.

Client Side: After the host receives the `HostInformation` event, the Query
String parameters should be updated with the Websocket URI and the game code so
that the host is able to just send that to the other players
*/
import { Socket } from 'socket.io';
import { Game } from '../utils/Game';
import { active_games, log } from '../main';
import { generate_game_code } from '../utils/gamecode';

export const HostGame = (socket: Socket, data: HostGame) => {
	try {

		// Get a game code that is not in use to prevent join conflicts
		let game_code = generate_game_code();
		while (Object.keys(active_games).includes(game_code)) {
			game_code = generate_game_code();
		}

		// Add the user to the game's room
		socket.join(game_code);

		// Create the game
		let game = new Game(game_code);
		game.add_player(data.username, socket.id, true);
		active_games[game_code] = game;
		log.info(`${data.username} created a game. (Gamecode: ${game_code})`);

		// Respond to client
		socket.emit(`HostInformation`, {
			success: true,
			game_code: game_code
		});
	} catch (err) {
		log.prettyError(err);
		socket.emit(`HostInformation`, {
			success: false,
			error: `${err.name}: ${err.message}`
		});
	}
};