rentall-app/backend/routes/rentals.js

const express = require('express');
const { Op } = require('sequelize');
const { Rental, Item, User } = require('../models'); // Import from models/index.js to get models with associations
const { authenticateToken } = require('../middleware/auth');
const router = express.Router();

router.get('/my-rentals', authenticateToken, async (req, res) => {
  try {
    const rentals = await Rental.findAll({
      where: { renterId: req.user.id },
      include: [
        { model: Item, as: 'item' },
        { model: User, as: 'owner', attributes: ['id', 'username', 'firstName', 'lastName'] }
      ],
      order: [['createdAt', 'DESC']]
    });

    res.json(rentals);
  } catch (error) {
    res.status(500).json({ error: error.message });
  }
});

router.get('/my-listings', authenticateToken, async (req, res) => {
  try {
    const rentals = await Rental.findAll({
      where: { ownerId: req.user.id },
      include: [
        { model: Item, as: 'item' },
        { model: User, as: 'renter', attributes: ['id', 'username', 'firstName', 'lastName'] }
      ],
      order: [['createdAt', 'DESC']]
    });

    res.json(rentals);
  } catch (error) {
    res.status(500).json({ error: error.message });
  }
});

router.post('/', authenticateToken, async (req, res) => {
  try {
    const { itemId, startDate, endDate, deliveryMethod, deliveryAddress, notes } = req.body;

    const item = await Item.findByPk(itemId);
    if (!item) {
      return res.status(404).json({ error: 'Item not found' });
    }

    if (!item.availability) {
      return res.status(400).json({ error: 'Item is not available' });
    }

    const overlappingRental = await Rental.findOne({
      where: {
        itemId,
        status: { [Op.in]: ['confirmed', 'active'] },
        [Op.or]: [
          {
            startDate: { [Op.between]: [startDate, endDate] }
          },
          {
            endDate: { [Op.between]: [startDate, endDate] }
          }
        ]
      }
    });

    if (overlappingRental) {
      return res.status(400).json({ error: 'Item is already booked for these dates' });
    }

    const rentalDays = Math.ceil((new Date(endDate) - new Date(startDate)) / (1000 * 60 * 60 * 24));
    const totalAmount = rentalDays * (item.pricePerDay || 0);

    const rental = await Rental.create({
      itemId,
      renterId: req.user.id,
      ownerId: item.ownerId,
      startDate,
      endDate,
      totalAmount,
      deliveryMethod,
      deliveryAddress,
      notes
    });

    const rentalWithDetails = await Rental.findByPk(rental.id, {
      include: [
        { model: Item, as: 'item' },
        { model: User, as: 'owner', attributes: ['id', 'username', 'firstName', 'lastName'] },
        { model: User, as: 'renter', attributes: ['id', 'username', 'firstName', 'lastName'] }
      ]
    });

    res.status(201).json(rentalWithDetails);
  } catch (error) {
    res.status(500).json({ error: error.message });
  }
});

router.put('/:id/status', authenticateToken, async (req, res) => {
  try {
    const { status } = req.body;
    const rental = await Rental.findByPk(req.params.id);

    if (!rental) {
      return res.status(404).json({ error: 'Rental not found' });
    }

    if (rental.ownerId !== req.user.id && rental.renterId !== req.user.id) {
      return res.status(403).json({ error: 'Unauthorized' });
    }

    await rental.update({ status });

    const updatedRental = await Rental.findByPk(rental.id, {
      include: [
        { model: Item, as: 'item' },
        { model: User, as: 'owner', attributes: ['id', 'username', 'firstName', 'lastName'] },
        { model: User, as: 'renter', attributes: ['id', 'username', 'firstName', 'lastName'] }
      ]
    });

    res.json(updatedRental);
  } catch (error) {
    res.status(500).json({ error: error.message });
  }
});

router.post('/:id/review', authenticateToken, async (req, res) => {
  try {
    const { rating, review } = req.body;
    const rental = await Rental.findByPk(req.params.id);

    if (!rental) {
      return res.status(404).json({ error: 'Rental not found' });
    }

    if (rental.renterId !== req.user.id) {
      return res.status(403).json({ error: 'Only renters can leave reviews' });
    }

    if (rental.status !== 'completed') {
      return res.status(400).json({ error: 'Can only review completed rentals' });
    }

    await rental.update({ rating, review });

    res.json(rental);
  } catch (error) {
    res.status(500).json({ error: error.message });
  }
});

module.exports = router;