/**
 * SES operations handler
 *
 * Only used for:
 *  - Sending OOO replies to external addresses
 *  - Forwarding to external addresses
 */

import {
  SESClient,
  SendRawEmailCommand,
} from '@aws-sdk/client-ses';
import { config } from '../config.js';
import { log } from '../logger.js';

export class SESHandler {
  private client: SESClient;

  constructor() {
    this.client = new SESClient({ region: config.awsRegion });
  }

  /**
   * Send a raw MIME message via SES.
   * Returns true on success, false on failure (never throws).
   */
  async sendRawEmail(
    source: string,
    destination: string,
    rawMessage: Buffer,
    workerName: string,
  ): Promise<boolean> {
    try {
      await this.client.send(
        new SendRawEmailCommand({
          Source: source,
          Destinations: [destination],
          RawMessage: { Data: rawMessage },
        }),
      );
      return true;
    } catch (err: any) {
      const code = err.name ?? err.Code ?? 'Unknown';
      log(
        `⚠ SES send failed to ${destination} (${code}): ${err.message ?? err}`,
        'ERROR',
        workerName,
      );
      return false;
    }
  }
}