import { Router } from 'express';
import { paywallService } from '../services/paywall.js';
import { authenticate, requireCreator } from '../middleware/auth.js';
import { validateBody, createPaywallSchema, updatePaywallSchema } from '../utils/validation.js';
import { prisma } from '../config/database.js';

const router = Router();

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

// Create paywall
router.post('/', validateBody(createPaywallSchema), async (req, res, next) => {
  try {
    const paywall = await paywallService.create(req.user.id, req.body);
    res.status(201).json({ paywall });
  } catch (error) {
    next(error);
  }
});

// List paywalls
router.get('/', async (req, res, next) => {
  try {
    const { status, page = 1, limit = 20 } = req.query;
    const result = await paywallService.listByCreator(req.user.id, {
      status,
      page: parseInt(page),
      limit: parseInt(limit),
    });
    res.json(result);
  } catch (error) {
    next(error);
  }
});

// Get paywall stats
router.get('/stats', async (req, res, next) => {
  try {
    const stats = await paywallService.getStats(req.user.id);
    res.json(stats);
  } catch (error) {
    next(error);
  }
});

// Fetch URL metadata
router.post('/fetch-metadata', async (req, res, next) => {
  try {
    const { url } = req.body;
    if (!url) {
      return res.status(400).json({ error: 'URL is required' });
    }
    const metadata = await paywallService.fetchUrlMetadata(url);
    res.json(metadata);
  } catch (error) {
    next(error);
  }
});

// Get single paywall
router.get('/:id', async (req, res, next) => {
  try {
    const paywall = await paywallService.findByIdAndCreator(req.params.id, req.user.id);
    
    // Get additional stats
    const [salesCount, totalRevenue] = await Promise.all([
      prisma.sale.count({ where: { paywallId: paywall.id } }),
      prisma.sale.aggregate({
        where: { paywallId: paywall.id },
        _sum: { netSats: true },
      }),
    ]);

    res.json({
      paywall,
      stats: {
        salesCount,
        totalRevenue: totalRevenue._sum.netSats || 0,
      },
    });
  } catch (error) {
    next(error);
  }
});

// Update paywall
router.patch('/:id', validateBody(updatePaywallSchema), async (req, res, next) => {
  try {
    const paywall = await paywallService.update(req.user.id, req.params.id, req.body);
    res.json({ paywall });
  } catch (error) {
    next(error);
  }
});

// Archive paywall
router.post('/:id/archive', async (req, res, next) => {
  try {
    const paywall = await paywallService.archive(req.user.id, req.params.id);
    res.json({ paywall });
  } catch (error) {
    next(error);
  }
});

// Activate paywall
router.post('/:id/activate', async (req, res, next) => {
  try {
    await paywallService.findByIdAndCreator(req.params.id, req.user.id);
    
    const paywall = await prisma.paywall.update({
      where: { id: req.params.id },
      data: { status: 'ACTIVE' },
    });
    
    res.json({ paywall });
  } catch (error) {
    next(error);
  }
});

// Get paywall sales
router.get('/:id/sales', async (req, res, next) => {
  try {
    await paywallService.findByIdAndCreator(req.params.id, req.user.id);
    
    const { page = 1, limit = 20 } = req.query;
    const skip = (parseInt(page) - 1) * parseInt(limit);

    const [sales, total] = await Promise.all([
      prisma.sale.findMany({
        where: { paywallId: req.params.id },
        orderBy: { createdAt: 'desc' },
        skip,
        take: parseInt(limit),
      }),
      prisma.sale.count({ where: { paywallId: req.params.id } }),
    ]);

    res.json({
      sales,
      total,
      page: parseInt(page),
      totalPages: Math.ceil(total / parseInt(limit)),
    });
  } catch (error) {
    next(error);
  }
});

// Get embed code
router.get('/:id/embed', async (req, res, next) => {
  try {
    const paywall = await paywallService.findByIdAndCreator(req.params.id, req.user.id);
    const baseUrl = process.env.FRONTEND_URL || 'http://localhost:5173';
    const apiUrl = process.env.API_URL || 'http://localhost:3001';

    const embedCode = {
      iframe: `<iframe src="${baseUrl}/embed/${paywall.id}" width="100%" height="400" frameborder="0" style="border-radius: 12px; max-width: 400px;"></iframe>`,
      button: `<script src="${apiUrl}/js/paywall.js" data-paywall="${paywall.id}" data-theme="auto"></script>`,
      link: `${baseUrl}/p/${paywall.slug || paywall.id}`,
    };

    res.json(embedCode);
  } catch (error) {
    next(error);
  }
});

export default router;