/**
 * Structured logging utilities
 */

import pino from 'pino';
import { getEnv } from './env';

/**
 * Create a Pino logger instance
 */
export function createLogger(serviceName: string): pino.Logger {
  const env = getEnv();
  const isDevelopment = env.NODE_ENV === 'development';

  return pino({
    level: env.LOG_LEVEL,
    name: serviceName,
    transport: isDevelopment
      ? {
          target: 'pino-pretty',
          options: {
            colorize: true,
            translateTime: 'HH:MM:ss Z',
            ignore: 'pid,hostname',
          },
        }
      : undefined,
    formatters: {
      level: (label) => {
        return { level: label };
      },
    },
    timestamp: pino.stdTimeFunctions.isoTime,
  });
}

/**
 * Add correlation ID to logger context
 */
export function withCorrelationId(
  logger: pino.Logger,
  correlationId: string
): pino.Logger {
  return logger.child({ correlationId });
}