import { NextResponse } from 'next/server'
import { readRestaurants, writeRestaurants } from '@/app/lib/restaurants'
import { Restaurant } from '@/app/types'

export async function GET(
  _request: Request,
  { params }: { params: Promise<{ id: string }> }
) {
  const { id } = await params
  const restaurants = readRestaurants()
  const restaurant = restaurants.find((r) => r.id === id)

  if (!restaurant) {
    return NextResponse.json({ error: 'Not found' }, { status: 404 })
  }

  return NextResponse.json(restaurant)
}

export async function PUT(
  request: Request,
  { params }: { params: Promise<{ id: string }> }
) {
  const { id } = await params
  const body = await request.json() as Partial<Restaurant>
  const restaurants = readRestaurants()
  const index = restaurants.findIndex((r) => r.id === id)

  if (index === -1) {
    return NextResponse.json({ error: 'Not found' }, { status: 404 })
  }

  restaurants[index] = { ...restaurants[index], ...body, id }
  writeRestaurants(restaurants)

  return NextResponse.json(restaurants[index])
}

export async function DELETE(
  _request: Request,
  { params }: { params: Promise<{ id: string }> }
) {
  const { id } = await params
  const restaurants = readRestaurants()
  const filtered = restaurants.filter((r) => r.id !== id)

  if (filtered.length === restaurants.length) {
    return NextResponse.json({ error: 'Not found' }, { status: 404 })
  }

  writeRestaurants(filtered)
  return NextResponse.json({ success: true })
}