From 7df5994251c30c1e9e7c0e7f73a177fc8409ee65 Mon Sep 17 00:00:00 2001
From: toir-bot <toir-bot@greact.ru>
Date: Mon, 13 Apr 2026 15:16:37 +0000
Subject: [PATCH] chore: initial project scaffold: frontend/src/authProvider.ts

---
 frontend/src/authProvider.ts | 60 ++++++++++++++++++++++++++++++++++++
 1 file changed, 60 insertions(+)
 create mode 100644 frontend/src/authProvider.ts

diff --git a/frontend/src/authProvider.ts b/frontend/src/authProvider.ts
new file mode 100644
index 0000000..917d221
--- /dev/null
+++ b/frontend/src/authProvider.ts
@@ -0,0 +1,60 @@
+import Keycloak from 'keycloak-js';
+import { AuthProvider } from 'react-admin';
+
+const keycloak = new Keycloak({
+  url: import.meta.env.VITE_KEYCLOAK_URL,
+  realm: import.meta.env.VITE_KEYCLOAK_REALM,
+  clientId: import.meta.env.VITE_KEYCLOAK_CLIENT_ID,
+});
+
+let authenticated = false;
+
+export const initKeycloak = async (): Promise<boolean> => {
+  authenticated = await keycloak.init({
+    onLoad: 'login-required',
+    checkLoginIframe: false,
+  });
+  return authenticated;
+};
+
+export const getToken = (): string | undefined => keycloak.token;
+
+export const authProvider: AuthProvider = {
+  login: async () => {
+    if (!authenticated) {
+      await keycloak.login();
+    }
+  },
+  logout: async () => {
+    await keycloak.logout({ redirectUri: window.location.origin });
+  },
+  checkError: async (error) => {
+    if (error.status === 401 || error.status === 403) {
+      try {
+        const refreshed = await keycloak.updateToken(30);
+        if (!refreshed) throw new Error('Token refresh failed');
+      } catch {
+        await keycloak.logout({ redirectUri: window.location.origin });
+        throw new Error('Session expired');
+      }
+    }
+  },
+  checkAuth: async () => {
+    if (!keycloak.authenticated) {
+      throw new Error('Not authenticated');
+    }
+    try {
+      await keycloak.updateToken(30);
+    } catch {
+      throw new Error('Token refresh failed');
+    }
+  },
+  getPermissions: async () => {
+    const roles = keycloak.tokenParsed?.realm_access?.roles ?? [];
+    return roles;
+  },
+  getIdentity: async () => ({
+    id: keycloak.tokenParsed?.sub ?? '',
+    fullName: keycloak.tokenParsed?.preferred_username ?? '',
+  }),
+};