const express = require('express')
const { listGames, getGameDetail, findGameById, favoriteGame, unfavoriteGame } = require('../db')
const { requireAuth } = require('../middleware/auth')

const router = express.Router()

router.get('/', async (req, res) => {
  const games = await listGames(req.session?.userId || '')
  res.json({ games })
})

router.post('/:gameId/favorite', requireAuth, async (req, res) => {
  const game = await findGameById(req.params.gameId)
  if (!game || game.id === 'freeform') return res.status(404).json({ error: 'not_found' })
  await favoriteGame({ userId: req.session.userId, gameId: game.id })
  const games = await listGames(req.session.userId)
  const updated = games.find((entry) => entry.id === game.id) || { ...game, isFavorited: true }
  res.json({ game: updated })
})

router.delete('/:gameId/favorite', requireAuth, async (req, res) => {
  const game = await findGameById(req.params.gameId)
  if (!game || game.id === 'freeform') return res.status(404).json({ error: 'not_found' })
  await unfavoriteGame({ userId: req.session.userId, gameId: game.id })
  const games = await listGames(req.session.userId)
  const updated = games.find((entry) => entry.id === game.id) || { ...game, isFavorited: false }
  res.json({ game: updated })
})

router.get('/:gameId', async (req, res) => {
  const detail = await getGameDetail(req.params.gameId)
  if (!detail) return res.status(404).json({ error: 'not_found' })
  res.json({ game: detail.game, items: detail.items })
})

module.exports = router