import type { CliOptions } from './cli.js';
export interface ServerConfig {
wsPort: number;
wsHost: string;
httpPort: number;
httpHost: string;
logLevel: string;
logLevelFile?: string;
logFile?: string;
requestLog?: string;
responseLog?: string;
prettyLogs: boolean;
}
/**
* Merge CLI options with environment variables and apply defaults
* Precedence: CLI > Environment Variables > Defaults
*/
export function getConfig(cliOptions: CliOptions): ServerConfig {
// Apply verbose flag override
let logLevel = cliOptions.logLevel || 'info';
if (cliOptions.verbose) {
logLevel = 'debug';
}
// Validate CLI port ranges before merging
if (cliOptions.wsPort !== undefined && (cliOptions.wsPort < 1 || cliOptions.wsPort > 65535)) {
throw new Error(`Invalid WebSocket port: ${cliOptions.wsPort}. Must be between 1 and 65535.`);
}
if (
cliOptions.httpPort !== undefined &&
(cliOptions.httpPort < 1 || cliOptions.httpPort > 65535)
) {
throw new Error(`Invalid HTTP port: ${cliOptions.httpPort}. Must be between 1 and 65535.`);
}
// Get ports with CLI > env > default precedence
const wsPort = cliOptions.wsPort || parseInt(process.env.REMNOTE_WS_PORT || '3002', 10);
const httpPort = cliOptions.httpPort || parseInt(process.env.REMNOTE_HTTP_PORT || '3001', 10);
// Get hosts with CLI > env > default precedence
// SECURITY: WebSocket ALWAYS binds to localhost, regardless of env var or CLI option
const wsHost = '127.0.0.1';
const httpHost = cliOptions.httpHost || process.env.REMNOTE_HTTP_HOST || '127.0.0.1';
// Validate port conflicts
if (wsPort === httpPort) {
throw new Error(`WebSocket port and HTTP port cannot be the same (both set to ${wsPort})`);
}
// File log level defaults to console log level if not specified
const logLevelFile = cliOptions.logLevelFile || (cliOptions.logFile ? logLevel : undefined);
// Pretty logs in development (when using pino-pretty)
const prettyLogs = process.stdout.isTTY === true;
return {
wsPort,
wsHost,
httpPort,
httpHost,
logLevel,
logLevelFile,
logFile: cliOptions.logFile,
requestLog: cliOptions.requestLog,
responseLog: cliOptions.responseLog,
prettyLogs,
};
}
