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lib/Repository/UserDepartmentRepository.php

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+<?php
+
+namespace MintyPHP\Repository;
+
+use MintyPHP\DB;
+
+class UserDepartmentRepository
+{
+    public static function listDepartmentIdsByUserId(int $userId): array
+    {
+        $rows = DB::select('select department_id from user_departments where user_id = ?', (string) $userId);
+        if (!is_array($rows)) {
+            return [];
+        }
+        $ids = [];
+        foreach ($rows as $row) {
+            $data = $row['user_departments'] ?? $row;
+            if (is_array($data) && isset($data['department_id'])) {
+                $ids[] = (int) $data['department_id'];
+            }
+        }
+        return array_values(array_unique($ids));
+    }
+
+    public static function replaceForUser(int $userId, array $departmentIds): bool
+    {
+        DB::delete('delete from user_departments where user_id = ?', (string) $userId);
+        if (!$departmentIds) {
+            return true;
+        }
+
+        foreach ($departmentIds as $departmentId) {
+            DB::insert(
+                'insert into user_departments (user_id, department_id, created) values (?,?,NOW())',
+                (string) $userId,
+                (string) $departmentId
+            );
+        }
+
+        return true;
+    }
+
+    public static function removeInvalidForDepartment(int $departmentId): int
+    {
+        $query = 'delete ud from user_departments ud ' .
+            'where ud.department_id = ? and not exists (' .
+            'select 1 from user_tenants ut ' .
+            'join tenant_departments td on td.tenant_id = ut.tenant_id ' .
+            'where ut.user_id = ud.user_id and td.department_id = ud.department_id' .
+            ')';
+        $result = DB::delete($query, (string) $departmentId);
+        return $result !== false ? (int) $result : 0;
+    }
+}