'use server'

import { createClient } from '@/lib/supabase/server'
import type { Order, EndCustomer, EndCustomerWithOrders, OrderWithRegisterName } from '@/lib/types'

/**
 * Holt alle Bestellanfragen.
 * RLS filtert automatisch auf die eigene Firma (bzw. lässt Admins alle sehen).
 */
export async function getCompanyOrders(): Promise<Order[]> {
  const supabase = await createClient()

  const { data, error } = await supabase
    .from('orders')
    .select('*')
    .order('created_at', { ascending: false })

  if (error) throw error
  return data as Order[]
}

/**
 * Holt alle Endkunden.
 * RLS filtert automatisch auf die eigene Firma (bzw. lässt Admins alle sehen).
 */
export async function getCompanyEndCustomers(): Promise<EndCustomer[]> {
  const supabase = await createClient()

  const { data, error } = await supabase
    .from('end_customers')
    .select('*')
    .order('company_name', { ascending: true })

  if (error) throw error
  return data as EndCustomer[]
}

/**
 * Holt alle Endkunden inkl. ihrer Bestellungen/Kassen verschachtelt.
 * Extrahiert den Kassen-Namen aus order_data.items[0].device_name (Fallback "Kasse 1").
 * RLS filtert automatisch über get_auth_company_id().
 */
export async function getPartnerCustomersWithOrders(): Promise<EndCustomerWithOrders[]> {
  const supabase = await createClient()

  const { data, error } = await supabase
    .from('end_customers')
    .select('*, orders(*)')
    .order('company_name', { ascending: true })

  if (error) throw error

  return (data || []).map((customer: any) => {
    const rawOrders = customer.orders || []
    // Sort orders by created_at desc
    const sortedOrders = [...rawOrders].sort(
      (a, b) => new Date(b.created_at).getTime() - new Date(a.created_at).getTime()
    )

    const orders: OrderWithRegisterName[] = sortedOrders.map((order: any) => {
      const items = order.order_data?.items || []
      const deviceName = items[0]?.device_name || 'Kasse 1'
      return {
        ...order,
        register_name: deviceName,
      }
    })

    return {
      ...customer,
      orders,
    }
  })
}