import { NextRequest, NextResponse } from 'next/server'
import { mockDb } from '@/lib/mockDb'

export async function GET(req: NextRequest) {
  const { searchParams } = new URL(req.url)
  const neighborhoodSlug = searchParams.get('neighborhood')
  const categorySlug = searchParams.get('category')

  const filters: Parameters<typeof mockDb.getListings>[0] = {}

  // Neighborhood filtresi (opsiyonel - boşsa tüm Marmaris)
  if (neighborhoodSlug) {
    const neighborhood = await mockDb.getNeighborhoodBySlug(neighborhoodSlug)
    if (neighborhood) {
      filters.neighborhoodId = neighborhood.id
    }
  }

  // Category filtresi (opsiyonel)
  if (categorySlug) {
    const categories = await mockDb.getCategories()
    const cat = categories.find(c => c.slug === categorySlug)
    if (cat) {
      filters.categoryId = cat.id
    }
  }

  const listings = await mockDb.getListings(filters)

  // Shuffle for variety, limit to 5
  const shuffled = listings.sort(() => 0.5 - Math.random()).slice(0, 5)

  const formattedListings = shuffled.map(l => ({
    id: l.id,
    name: l.nameTr,
    nameEn: l.nameEn,
    nameRu: l.nameRu,
    slug: l.slug,
    categorySlug: l.category?.slug || 'isletme',
    categoryName: l.category?.nameTr || '',
    neighborhoodName: l.neighborhood?.nameTr || '',
    rating: l.rating,
    priceSymbols: '₺'.repeat(l.priceRange || 1),
    coverImage: l.images && l.images.length > 0
      ? l.images[0].url
      : 'https://images.unsplash.com/photo-1555396273-367ea4eb4db5?w=800&auto=format&fit=crop&q=80'
  }))

  return NextResponse.json({ listings: formattedListings }, {
    headers: {
      'Access-Control-Allow-Origin': '*',
      'Access-Control-Allow-Methods': 'GET, OPTIONS',
    }
  })
}

// Handle preflight OPTIONS request
export async function OPTIONS() {
  return new NextResponse(null, {
    headers: {
      'Access-Control-Allow-Origin': '*',
      'Access-Control-Allow-Methods': 'GET, OPTIONS',
      'Access-Control-Allow-Headers': 'Content-Type',
    }
  })
}