// Composable for product lookup via Edge Function

export interface ProductData {
  barcode: string
  name: string
  brand?: string
  quantity?: string
  image_url?: string
  category?: string
  cached?: boolean
}

export const useProductLookup = () => {
  const supabase = useSupabaseClient()
  const isLoading = ref(false)
  const error = ref<string | null>(null)

  const lookupProduct = async (barcode: string): Promise<ProductData | null> => {
    isLoading.value = true
    error.value = null

    try {
      const { data, error: functionError } = await supabase.functions.invoke('product-lookup', {
        body: { barcode }
      })

      if (functionError) {
        console.error('Product lookup error:', functionError)
        error.value = functionError.message || 'Failed to lookup product'
        
        // Return basic product data even on error
        return {
          barcode,
          name: `Product ${barcode}`,
          cached: false
        }
      }

      return data as ProductData

    } catch (err) {
      console.error('Unexpected error during product lookup:', err)
      error.value = err instanceof Error ? err.message : 'Unknown error'
      
      // Return basic product data even on error
      return {
        barcode,
        name: `Product ${barcode}`,
        cached: false
      }
    } finally {
      isLoading.value = false
    }
  }

  return {
    lookupProduct,
    isLoading: readonly(isLoading),
    error: readonly(error)
  }
}