'use strict';

const marketplaceService = require('../services/marketplace.service');
const bookingService = require('../services/booking.service');

const asyncHandler = (fn) => (req, res, next) => {
  Promise.resolve(fn(req, res, next)).catch(next);
};

const list = asyncHandler(async (req, res) => {
  const { category, limit, offset } = req.query;
  const products = await marketplaceService.listProducts({ category, limit, offset });
  res.json({ data: products });
});

const getById = asyncHandler(async (req, res) => {
  const product = await marketplaceService.getProductById(req.params.id);
  if (!product) return res.status(404).json({ error: { message: 'Product not found' } });
  res.json({ data: product });
});

const create = asyncHandler(async (req, res) => {
  const userId = req.user.id;
  const providerProfile = await bookingService.getProviderProfile(userId);
  
  if (!providerProfile) {
    return res.status(403).json({ error: { message: 'Only registered providers can list products' } });
  }

  const product = await marketplaceService.createProduct({
    providerId: providerProfile.id,
    ...req.body
  });

  res.status(201).json({ data: product });
});

const update = asyncHandler(async (req, res) => {
  const userId = req.user.id;
  const providerProfile = await bookingService.getProviderProfile(userId);
  
  if (!providerProfile) {
    return res.status(403).json({ error: { message: 'Unauthorized' } });
  }

  try {
    const product = await marketplaceService.updateProduct(req.params.id, req.body, providerProfile.id);
    if (!product) return res.status(404).json({ error: { message: 'Product not found' } });
    res.json({ data: product });
  } catch (err) {
    res.status(403).json({ error: { message: err.message } });
  }
});

const remove = asyncHandler(async (req, res) => {
  const userId = req.user.id;
  const providerProfile = await bookingService.getProviderProfile(userId);
  
  if (!providerProfile) {
    return res.status(403).json({ error: { message: 'Unauthorized' } });
  }

  try {
    const result = await marketplaceService.deleteProduct(req.params.id, providerProfile.id);
    if (!result) return res.status(404).json({ error: { message: 'Product not found' } });
    res.json({ success: true, message: 'Product deleted' });
  } catch (err) {
    res.status(403).json({ error: { message: err.message } });
  }
});

module.exports = {
  list,
  getById,
  create,
  update,
  remove
};