Project deleting

water-api/src/controllers/project.controller.ts

@@ -225,3 +225,37 @@ export async function getStats(req: Request, res: Response): Promise<void> {
     });
   }
 }
+
+/**
+ * POST /projects/:id/deactivate
+ * Deactivate a project and unassign users
+ * Requires authentication
+ */
+export async function deactivateProject(req: AuthenticatedRequest, res: Response): Promise<void> {
+  try {
+    const { id } = req.params;
+
+    const project = await projectService.getById(id);
+
+    if (!project) {
+      res.status(404).json({
+        success: false,
+        error: 'Project not found',
+      });
+      return;
+    }
+
+    const deactivatedProject = await projectService.deactivateProjectAndUnassignUsers(id);
+
+    res.status(200).json({
+      success: true,
+      data: deactivatedProject,
+    });
+  } catch (error) {
+    console.error('Error deactivating project:', error);
+    res.status(500).json({
+      success: false,
+      error: 'Failed to deactivate project',
+    });
+  }
+}

water-api/src/routes/project.routes.ts

@@ -54,6 +54,14 @@ router.put('/:id', authenticateToken, validateUpdateProject, projectController.u
  */
 router.patch('/:id', authenticateToken, validateUpdateProject, projectController.update);
 
+/**
+ * POST /projects/:id/deactivate
+ * Protected endpoint - deactivate a project and unassign users
+ * Headers: Authorization: Bearer <accessToken>
+ * Response: { success: true, data: Project }
+ */
+router.post('/:id/deactivate', authenticateToken, projectController.deactivateProject);
+
 /**
  * DELETE /projects/:id
  * Protected endpoint - delete a project (requires admin role)

water-api/src/services/project.service.ts

@@ -323,3 +323,25 @@ export async function getStats(id: string): Promise<ProjectStats | null> {
     concentrator_count: parseInt(concentratorStats.rows[0]?.count || '0', 10),
   };
 }
+
+/**
+ * Deactivate a project and unassign all users
+ * @param id - Project UUID
+ * @returns Updated project
+ */
+export async function deactivateProjectAndUnassignUsers(id: string): Promise<Project> {
+  await query(
+    'UPDATE users SET project_id = NULL WHERE project_id = $1',
+    [id]
+  );
+
+  const result = await query<Project>(
+    `UPDATE projects
+     SET status = 'INACTIVE', updated_at = NOW()
+     WHERE id = $1
+     RETURNING id, name, description, area_name, location, status, meter_type_id, created_by, created_at, updated_at`,
+    [id]
+  );
+
+  return result.rows[0];
+}