export interface Config {
port: number;
logLevel: 'debug' | 'info' | 'warn' | 'error';
appsignal: {
apiToken: string;
};
}
export interface CliOptions {
appsignalApiToken?: string;
logLevel?: Config['logLevel'];
port?: number;
}
export function parseCliOptions(): CliOptions {
const args = process.argv.slice(2);
const options: CliOptions = {};
for (let i = 0; i < args.length; i++) {
const arg = args[i];
if (arg === '--appsignal-api-token' && i + 1 < args.length) {
options.appsignalApiToken = args[++i];
} else if (arg === '--log-level' && i + 1 < args.length) {
const level = args[++i];
if (['debug', 'info', 'warn', 'error'].includes(level)) {
options.logLevel = level as Config['logLevel'];
}
} else if (arg === '--port' && i + 1 < args.length) {
options.port = parseInt(args[++i], 10);
}
}
return options;
}
export function loadConfig(): Config {
const cliOptions = parseCliOptions();
return {
port: cliOptions.port || parseInt(process.env.PORT || '3000', 10),
logLevel: cliOptions.logLevel || (process.env.LOG_LEVEL || 'info') as Config['logLevel'],
appsignal: {
apiToken: cliOptions.appsignalApiToken || process.env.APPSIGNAL_API_TOKEN || '',
}
};
}
