/**
 * Mock certified retrieval receipt (JSON). Not a payment invoice.
 * @module routes/receiptRoutes
 */

import { Router } from 'express';
import { asyncHandler, AppError } from '../errors.js';
import { getJobStatus } from '../services/timestampService.js';
import { buildReceiptPdf } from '../lib/receiptPdf.js';

export const receiptRoutes = Router();

receiptRoutes.get(
  '/:jobId',
  asyncHandler(async (req, res) => {
    const { jobId } = req.params;
    const format = String(req.query.format || 'json').toLowerCase();
    const status = await getJobStatus(req.auth, jobId);
    if (status.status !== 'completed') {
      throw new AppError('Receipt only for completed jobs', { status: 409, code: 'NOT_COMPLETE' });
    }
    const retrievedAt = new Date().toISOString();
    const receipt = {
      type: 'verae.retrieval-receipt',
      format: 'json',
      jobId,
      sha256: status.sha256 ?? status.metadata?.sha256,
      timestamp: status.completedAt ?? status.metadata?.timestamp,
      certificate: status.result,
      extraSeal: {
        event: 'document.retrieved',
        retrievedAt,
        tenantId: req.auth.tenantId,
      },
    };
    if (format === 'pdf') {
      const pdf = buildReceiptPdf({ ...receipt, format: 'pdf' });
      res.setHeader('content-type', 'application/pdf');
      res.setHeader('content-disposition', `attachment; filename="verae-receipt-${jobId}.pdf"`);
      res.send(pdf);
      return;
    }
    res.json(receipt);
  }),
);