const express = require('express');
const router = express.Router();
const multer = require('multer');
const path = require('path');
const fs = require('fs');

// Configure multer for memory storage (we'll forward the buffer to the external API)
const upload = multer({ storage: multer.memoryStorage() });

// Ensure uploads dir exists for PDF reports
const reportsDir = path.join(__dirname, '../uploads/reports');
if (!fs.existsSync(reportsDir)) {
  fs.mkdirSync(reportsDir, { recursive: true });
}

const diskStorage = multer.diskStorage({
  destination: function (req, file, cb) {
    cb(null, reportsDir)
  },
  filename: function (req, file, cb) {
    const uniqueSuffix = Date.now() + '-' + Math.round(Math.random() * 1E9)
    cb(null, (req.body.phone || 'anonymous') + '-' + uniqueSuffix + '.pdf')
  }
});
const uploadPdf = multer({ storage: diskStorage });

// Controllers
const { analyzeImage } = require('../controllers/analysisController');
const { createUser, verifyOtp } = require('../controllers/userController');
const { createReport, getReport, savePdfReport } = require('../controllers/reportController');
const { sendOtp, sendReport } = require('../controllers/whatsappController');
const { getDashboardUsers } = require('../controllers/dashboardController');

// 1. Analysis Proxy
router.post('/perfectcorp/analyze', upload.single('image'), analyzeImage);

// 2. User & OTP Management
router.post('/users', createUser);
router.post('/verify-otp', verifyOtp);

// 3. Reports
router.post('/reports', createReport);
router.get('/reports/:reportId', getReport);
router.post('/reports/save-pdf', uploadPdf.single('pdf'), savePdfReport);

// 4. WhatsApp Integration
router.post('/whatsapp/send-otp', sendOtp);
router.post('/whatsapp/send-report', sendReport);

// 5. Admin Dashboard
router.get('/dashboard/users', getDashboardUsers);

module.exports = router;