feat(secret-sync): Add gitlab secret sync

frontend/src/pages/secret-manager/integrations/GitlabOauthCallbackPage/GitlabOauthCallbackPage.tsx

@@ -3,11 +3,13 @@ import { useNavigate, useSearch } from "@tanstack/react-router";
 
 import { ROUTE_PATHS } from "@app/const/routes";
 import { useWorkspace } from "@app/context";
-import { useAuthorizeIntegration } from "@app/hooks/api";
+import { useCreateAppConnection, useUpdateAppConnection } from "@app/hooks/api/appConnections";
+import { GitlabConnectionMethod } from "@app/hooks/api/appConnections/types/gitlab-connection";
 
 export const GitLabOAuthCallbackPage = () => {
   const navigate = useNavigate();
-  const { mutateAsync } = useAuthorizeIntegration();
+  const { mutateAsync: createAppConnection } = useCreateAppConnection();
+  const { mutateAsync: updateAppConnection } = useUpdateAppConnection();
 
   const { code, state } = useSearch({
     from: ROUTE_PATHS.SecretManager.Integratons.GitlabOauthCallbackPage.id
@@ -17,37 +19,83 @@ export const GitLabOAuthCallbackPage = () => {
   useEffect(() => {
     (async () => {
       try {
-        // validate state
-        const [csrfToken, url] = (state as string).split("|", 2);
+        // Validate CSRF state token
+        const [csrfToken] = (state as string).split("|", 2);
+        const storedState = localStorage.getItem("latestCSRFToken");
+        if (csrfToken !== storedState) {
+          console.error("CSRF token mismatch");
+          navigate({
+            to: "/organization/app-connections",
+            search: { error: "invalid_state" }
+          });
+          return;
+        }
 
-        if (csrfToken !== localStorage.getItem("latestCSRFToken")) return;
         localStorage.removeItem("latestCSRFToken");
 
-        const integrationAuth = await mutateAsync({
-          workspaceId: currentWorkspace.id,
-          code: code as string,
-          integration: "gitlab",
-          ...(url === ""
-            ? {}
-            : {
-                url
-              })
-        });
+        // Retrieve stored form dataAdd commentMore actions
+        const storedFormData = localStorage.getItem("gitlabConnectionFormData");
+        if (!storedFormData) {
+          console.error("No stored form data found");
+          navigate({
+            to: "/organization/app-connections",
+            search: { error: "missing_form_data" }
+          });
+          return;
+        }
+
+        const formData = JSON.parse(storedFormData);
+        localStorage.removeItem("gitlabConnectionFormData");
+
+        // Prepare app connection data with OAuth credentials
+        const connectionData = {
+          ...formData,
+          method: GitlabConnectionMethod.OAuth,
+          credentials: {
+            code: code as string
+          }
+        };
+
+        let appConnection;
+
+        // Create or update app connection
+        if (formData.isUpdate && formData.connectionId) {
+          appConnection = await updateAppConnection({
+            connectionId: formData.connectionId,
+            ...connectionData
+          });
+        } else {
+          appConnection = await createAppConnection({
+            workspaceId: currentWorkspace.id,
+            ...connectionData
+          });
+        }
+
+        // Navigate to success page or app connections list
 
         navigate({
-          to: "/secret-manager/$projectId/integrations/gitlab/create",
-          params: {
-            projectId: currentWorkspace.id
-          },
+          to: "/organization/app-connections",
           search: {
-            integrationAuthId: integrationAuth.id
+            success: formData.isUpdate ? "connection_updated" : "connection_created",
+            connectionId: appConnection.id
           }
         });
       } catch (err) {
-        console.error(err);
+        console.error("Error handling GitLab OAuth callback:", err);
+        navigate({
+          to: "/organization/app-connections",
+          search: { error: "connection_failed" }
+        });
       }
     })();
-  }, []);
+  }, [code, state, navigate, createAppConnection, updateAppConnection, currentWorkspace.id]);
 
-  return <div />;
+  return (
+    <div className="flex h-screen items-center justify-center">
+      <div className="text-center">
+        <div className="mx-auto mb-4 h-8 w-8 animate-spin rounded-full border-b-2 border-primary" />
+        <p className="text-gray-600">Connecting to GitLab...</p>
+      </div>
+    </div>
+  );
 };