'use strict';

const express = require('express');
const router = express.Router();
const pantryService = require('../services/pantryService');
const { authenticate } = require('../middleware/authenticate');
const { validate } = require('../utils/validate');
const { addPantryItemSchema, updatePantryItemSchema } = require('../utils/validation');

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

// GET /v1/pantry
router.get('/', async (req, res, next) => {
  try {
    const items = await pantryService.getPantryItems(req.user.sub);
    return res.status(200).json({
      items,
      synced_at: new Date().toISOString(),
    });
  } catch (err) {
    return next(err);
  }
});

// POST /v1/pantry
router.post('/', async (req, res, next) => {
  try {
    const data = validate(addPantryItemSchema, req.body);
    const item = await pantryService.addPantryItem(req.user.sub, data);
    return res.status(201).json({ item });
  } catch (err) {
    return next(err);
  }
});

// PUT /v1/pantry/:item_id
router.put('/:item_id', async (req, res, next) => {
  try {
    const data = validate(updatePantryItemSchema, req.body);
    const item = await pantryService.updatePantryItem(req.user.sub, req.params.item_id, data);
    return res.status(200).json({ item });
  } catch (err) {
    return next(err);
  }
});

// DELETE /v1/pantry/:item_id
router.delete('/:item_id', async (req, res, next) => {
  try {
    await pantryService.deletePantryItem(req.user.sub, req.params.item_id);
    return res.status(204).send();
  } catch (err) {
    return next(err);
  }
});

module.exports = router;