/**
 * GET /api/products
 *
 * Returns a list of all active products available for purchase.
 * Products are sorted by category and name.
 *
 * Query Parameters:
 * - category: Filter by category (optional, comma-separated for multiple)
 */

import { eq, and, inArray } from 'drizzle-orm'
import { products } from '../../database/schema'

export default defineEventHandler(async (event) => {
  const db = useDatabase()
  const query = getQuery(event)
  const categoryParam = query.category as string | undefined

  try {
    // Build where conditions
    const conditions = [eq(products.active, true)]

    // Filter by category if provided
    if (categoryParam) {
      const categories = categoryParam.split(',').map((c) => c.trim())
      conditions.push(inArray(products.category, categories))
    }

    // Fetch products with filters
    const allProducts = await db.query.products.findMany({
      where: and(...conditions),
      orderBy: (products, { asc }) => [asc(products.category), asc(products.name)],
    })

    return allProducts
  } catch (error) {
    console.error('Error fetching products:', error)
    throw createError({
      statusCode: 500,
      statusMessage: 'Failed to fetch products',
    })
  }
})