pstream-backend/server/utils/logger.ts

type LogLevel = 'info' | 'warn' | 'error' | 'debug';

interface LogContext {
  evt?: string;
  [key: string]: any;
}

interface Logger {
  info(message: string, context?: LogContext): void;
  warn(message: string, context?: LogContext): void;
  error(message: string, context?: LogContext): void;
  debug(message: string, context?: LogContext): void;
}

function createLogger(scope: string): Logger {
  const log = (level: LogLevel, message: string, context?: LogContext) => {
    const timestamp = new Date().toISOString();
    const logData = {
      timestamp,
      level,
      scope,
      message,
      ...context,
    };

    if (process.env.NODE_ENV === 'production') {
      console.log(JSON.stringify(logData));
    }
  };

  return {
    info: (message: string, context?: LogContext) => log('info', message, context),
    warn: (message: string, context?: LogContext) => log('warn', message, context),
    error: (message: string, context?: LogContext) => log('error', message, context),
    debug: (message: string, context?: LogContext) => log('debug', message, context),
  };
}

export function scopedLogger(scope: string): Logger {
  return createLogger(scope);
}