feat: add company management and user-company assignment in admin panel

shop/lib/actions/companies.ts

@@ -0,0 +1,49 @@
+'use server'
+
+import { createAdminClient } from '@/lib/supabase/admin'
+import { revalidatePath } from 'next/cache'
+
+export async function getCompanies() {
+  const admin = createAdminClient()
+  const { data, error } = await admin
+    .from('companies')
+    .select('id, name, created_at')
+    .order('name', { ascending: true })
+  if (error) throw error
+  return data || []
+}
+
+export async function createCompany(name: string) {
+  const admin = createAdminClient()
+  const { data, error } = await admin
+    .from('companies')
+    .insert({ name: name.trim() })
+    .select()
+    .single()
+  if (error) throw error
+  revalidatePath('/admin/companies')
+  revalidatePath('/admin/users')
+  return data
+}
+
+export async function deleteCompany(id: string) {
+  const admin = createAdminClient()
+  const { error } = await admin
+    .from('companies')
+    .delete()
+    .eq('id', id)
+  if (error) throw error
+  revalidatePath('/admin/companies')
+  revalidatePath('/admin/users')
+}
+
+export async function assignCompanyToUser(userId: string, companyId: string | null) {
+  const admin = createAdminClient()
+  const { error } = await admin
+    .from('users')
+    .update({ company_id: companyId })
+    .eq('id', userId)
+  if (error) throw error
+  revalidatePath('/admin/users')
+  revalidatePath('/admin/einstellungen')
+}

shop/lib/actions/users.ts

@@ -10,18 +10,24 @@ export async function getUsers() {
 
   const { data: dbUsers, error: dbError } = await admin
     .from('users')
-    .select('id, role')
+    .select('id, role, company_id, companies(id, name)')
   
-  const roleMap: Record<string, string> = {}
+  const userMap: Record<string, { role: string; company_id: string | null; company_name: string | null }> = {}
   if (!dbError && dbUsers) {
-    dbUsers.forEach(u => {
-      roleMap[u.id] = u.role
+    dbUsers.forEach((u: any) => {
+      userMap[u.id] = {
+        role: u.role,
+        company_id: u.company_id || null,
+        company_name: u.companies?.name || null,
+      }
     })
   }
 
   return users.map(u => ({
     ...u,
-    role: roleMap[u.id] || 'partner'
+    role: userMap[u.id]?.role || 'partner',
+    company_id: userMap[u.id]?.company_id || null,
+    company_name: userMap[u.id]?.company_name || null,
   }))
 }
 
@@ -90,15 +96,26 @@ export async function getPartners() {
 
   const { data: dbUsers, error: dbError } = await admin
     .from('users')
-    .select('id, role')
+    .select('id, role, company_id, companies(id, name)')
     .in('role', ['partner', 'gesperrt'])
   if (dbError) throw dbError
 
-  const roleMap: Record<string, string> = {}
-  dbUsers.forEach(u => { roleMap[u.id] = u.role })
+  const userMap: Record<string, { role: string; company_id: string | null; company_name: string | null }> = {}
+  dbUsers.forEach((u: any) => {
+    userMap[u.id] = {
+      role: u.role,
+      company_id: u.company_id || null,
+      company_name: u.companies?.name || null,
+    }
+  })
 
   const partnerIds = new Set(dbUsers.map(u => u.id))
   return users
     .filter(u => partnerIds.has(u.id))
-    .map(u => ({ ...u, role: roleMap[u.id] || 'partner' }))
+    .map(u => ({
+      ...u,
+      role: userMap[u.id]?.role || 'partner',
+      company_id: userMap[u.id]?.company_id || null,
+      company_name: userMap[u.id]?.company_name || null,
+    }))
 }