Function logWithSync

web/src/util/logger.ts:115–159

(
  level: LogLevel,
  data: LogData,
  msg?: string,
  ...args: LogArgs
)

// In dev mode, use appendFileSync for real-time file logging (Bun has issues with pino sync)
// Also output to console so logs remain visible in the terminal
function logWithSync(
  level: LogLevel,
  data: LogData,
  msg?: string,
  ...args: LogArgs
): void {
  const formattedMsg = format(msg ?? '', ...args)
  if (IS_DEV) {
    // Write to file for real-time logging
    if (debugDir) {
      const logEntry = JSON.stringify({
        level: level.toUpperCase(),
        timestamp: new Date().toISOString(),
        ...(data && typeof data === 'object' ? data : { data }),
        msg: formattedMsg,
      })
      try {
        appendFileSync(path.join(debugDir, 'web.jsonl'), logEntry + '\n')
      } catch {
        // Ignore write errors
      }
    }
    // Also output to console for interactive debugging (don't use pinoLogger here
    // as it's configured to write to the same file, which would cause double logging)
    console[level === 'fatal' ? 'error' : level](formattedMsg, data)
  } else {
    const analyticsPayloads = analyticsDispatcher.process({
      data,
      level,
      msg: formattedMsg,
    })

    analyticsPayloads.forEach((payload) => {
      trackEvent({
        event: payload.event,
        userId: payload.userId,
        properties: payload.properties,
        logger: logger as unknown as typeof logger,
      })
    })

    // In prod, use pino with splitAndLog for large payloads
    splitAndLog(level, data, msg, ...args)
  }
}

export const logger: Record<LogLevel, pino.LogFn> = Object.fromEntries(
  loggingLevels.map((level) => {