Add code to handle the HostGame event

src/events/HostGame.ts

@@ -0,0 +1,53 @@
+/*
+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.
+
+This will also emit the `HostInformation` event to the host client, which will
+allow us to send them information about what the game code is
+
+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 * as db from '../utils/db';
+import { Socket } from 'socket.io';
+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 (db.exists(game_code)) {
+			game_code = generate_game_code();
+		}
+
+		// Init the database
+		db.create(game_code);
+		let db_init: database = {
+			state: `lobby`,
+			host: data.username,
+			players: {},
+			game_code: game_code
+		};
+		db_init.players[data.username] = { host: true, hitler: false, president: false, chancellor: false };
+		db.write(game_code, db_init, `\t`);
+
+		console.log(`${data.username} created a game. (Gamecode: ${game_code})`);
+
+		// Respond to client
+		socket.emit(`HostInformation`, {
+			success: true,
+			game_code: game_code,
+			players: [data.username]
+		});
+	} catch (err) {
+
+		// Let client know an error occured
+		socket.emit(`HostInformation`, {
+			success: false,
+			error: `${err.name}: ${err.message}`
+		})
+	}
+};