import { spawn } from 'child_process';
import { logGameExit, logGameStderr } from './server_log';

export function GetRandomPort(min: number, max: number): number {
    return randomIntFromInterval(min, max);
}

export function OpenGameInstance(path: string, port: number, matchId?: number): void {
    const args = ["-port", port.toString()];
    if (matchId != null && Number.isFinite(matchId)) {
        args.push("-matchId", String(Math.trunc(matchId)));
    }
    const child = spawn(path, args);

    child.stdout.on('data', (data: Buffer) => {
        // console.log('stdout: ' + data);
    });

    child.stderr.on('data', (data: Buffer) => {
        logGameStderr(port, data);
    });

    child.on('close', (code: number | null) => {
        logGameExit(port, code);
    });
}

function randomIntFromInterval(min: number, max: number): number {
    return Math.floor(Math.random() * (max - min + 1) + min);
}