const express = require('express');
const router = express.Router();
const { authenticate } = require('../middleware/auth');
const { uploadSingle, uploadMultiple, handleUploadError } = require('../middleware/upload');

// All routes require authentication
router.use(authenticate);

// Single file upload
router.post('/document', (req, res, next) => {
  uploadSingle(req, res, (err) => {
    if (err) {
      return handleUploadError(err, req, res, next);
    }

    if (!req.file) {
      return res.status(400).json({
        success: false,
        message: 'No file uploaded'
      });
    }

    res.json({
      success: true,
      message: 'File uploaded successfully',
      file: {
        filename: req.file.filename,
        originalName: req.file.originalname,
        size: req.file.size,
        url: `/uploads/${req.body.uploadType || 'documents'}/${req.file.filename}`
      }
    });
  });
});

// Multiple files upload
router.post('/documents', (req, res, next) => {
  uploadMultiple(req, res, (err) => {
    if (err) {
      return handleUploadError(err, req, res, next);
    }

    if (!req.files || req.files.length === 0) {
      return res.status(400).json({
        success: false,
        message: 'No files uploaded'
      });
    }

    const files = req.files.map(file => ({
      filename: file.filename,
      originalName: file.originalname,
      size: file.size,
      url: `/uploads/${req.body.uploadType || 'documents'}/${file.filename}`
    }));

    res.json({
      success: true,
      message: 'Files uploaded successfully',
      files
    });
  });
});

module.exports = router;