import express from 'express'
import { pool } from '../../config/index.js'
import { check, validationResult } from 'express-validator'

const router = express.Router()

// Get all collections
router.get('/', async (req, res) => {
	try {
		const result = await pool.query('SELECT * FROM collections')
		res.json(result.rows)
	} catch (error) {
		console.error(error)
		res.status(500).send('Server error')
	}
})

// Get a single collection by id
router.get('/:id', async (req, res) => {
	const { id } = req.params

	try {
		const result = await pool.query('SELECT * FROM collections WHERE id = $1', [
			id,
		])
		if (result.rows.length === 0) {
			return res.status(404).send('Collection not found')
		}
		res.json(result.rows[0])
	} catch (error) {
		console.error(error)
		res.status(500).send('Server error')
	}
})

// Create a new collection
router.post(
	'/',
	[
		check('name', 'Name is required').not().isEmpty(),
		check('image_id', 'Image id is required').not().isEmpty(),
	],
	async (req, res) => {
		const errors = validationResult(req)
		if (!errors.isEmpty()) {
			return res.status(400).json({ errors: errors.array() })
		}

		const { name, image_id } = req.body

		try {
			const result = await pool.query(
				'INSERT INTO collections (name, image_id, created_at, updated_at) VALUES ($1, $2, NOW(), NOW()) RETURNING *',
				[name, image_id]
			)
			res.status(201).json(result.rows[0])
		} catch (error) {
			console.error(error)
			res.status(500).send('Server error')
		}
	}
)

// Update an existing collection
router.put(
	'/:id',
	[
		check('name', 'Name is required').not().isEmpty(),
		check('image_id', 'Image id is required').not().isEmpty(),
	],
	async (req, res) => {
		const errors = validationResult(req)
		if (!errors.isEmpty()) {
			return res.status(400).json({ errors: errors.array() })
		}

		const { name, image_id } = req.body
		const { id } = req.params

		try {
			await pool.query(
				'UPDATE collections SET name = $1, image_id = $2, updated_at = NOW() WHERE id = $3',
				[name, image_id, id]
			)
			res.send('Collection updated')
		} catch (error) {
			console.error(error)
			res.status(500).send('Server error')
		}
	}
)

// Delete an existing collection
router.delete('/:id', async (req, res) => {
	const { id } = req.params

	try {
		await pool.query('DELETE FROM collections WHERE id = $1', [id])
		res.send('Collection deleted')
	} catch (error) {
		console.error(error)
		res.status(500).send('Server error')
	}
})

export default router