feat: link end customers directly to companies

shop/lib/actions/end-customers.ts

@@ -30,9 +30,23 @@ export type EndCustomerFormData = {
  */
 export async function getEndCustomers(): Promise<EndCustomer[]> {
   const supabase = await createClient()
+  const { data: { user } } = await supabase.auth.getUser()
+  if (!user) throw new Error('Not authenticated')
+
+  const { data: dbUser, error: dbUserError } = await supabase
+    .from('users')
+    .select('company_id')
+    .eq('id', user.id)
+    .single()
+
+  if (dbUserError || !dbUser || !dbUser.company_id) {
+    return []
+  }
+
   const { data, error } = await supabase
     .from('end_customers')
     .select('*')
+    .eq('partner_id', dbUser.company_id)
     .order('company_name', { ascending: true })
 
   if (error) throw error
@@ -66,10 +80,20 @@ export async function createEndCustomer(formData: EndCustomerFormData): Promise<
   const { data: { user } } = await supabase.auth.getUser()
   if (!user) throw new Error('Not authenticated')
 
+  const { data: dbUser, error: dbUserError } = await supabase
+    .from('users')
+    .select('company_id')
+    .eq('id', user.id)
+    .single()
+
+  if (dbUserError || !dbUser || !dbUser.company_id) {
+    throw new Error('Kein Unternehmen zugewiesen.')
+  }
+
   const { data, error } = await supabase
     .from('end_customers')
     .insert([{
-      partner_id: user.id,
+      partner_id: dbUser.company_id,
       company_name: formData.company_name,
       vat_id: formData.vat_id || null,
       first_name: formData.first_name || null,
@@ -167,10 +191,18 @@ export async function anonymizeEndCustomer(id: string): Promise<void> {
 
 export async function getPartnerEndCustomers(partnerId: string): Promise<EndCustomer[]> {
   const admin = createAdminClient()
+  const { data: dbUser } = await admin
+    .from('users')
+    .select('company_id')
+    .eq('id', partnerId)
+    .single()
+
+  const targetId = dbUser?.company_id || partnerId
+
   const { data, error } = await admin
     .from('end_customers')
     .select('*')
-    .eq('partner_id', partnerId)
+    .eq('partner_id', targetId)
     .order('company_name', { ascending: true })
 
   if (error) throw error