mobile update

backend/src/services/oauth_service.rs

@@ -44,6 +44,26 @@ impl OAuthService {
         (auth_url.to_string(), csrf_token)
     }
 
+    pub fn get_auth_url_with_state(&self, state: String) -> String {
+        let client_id = std::env::var("GOOGLE_CLIENT_ID")
+            .expect("GOOGLE_CLIENT_ID must be set");
+        let client_secret = std::env::var("GOOGLE_CLIENT_SECRET")
+            .expect("GOOGLE_CLIENT_SECRET must be set");
+        let redirect_url = std::env::var("GOOGLE_REDIRECT_URL")
+            .unwrap_or_else(|_| "http://localhost:8080/api/auth/google/callback".to_string());
+
+        let client = Self::get_client(client_id, client_secret, redirect_url);
+
+        let (auth_url, _) = client
+            .authorize_url(move || CsrfToken::new(state))
+            .add_scope(Scope::new("openid".to_string()))
+            .add_scope(Scope::new("email".to_string()))
+            .add_scope(Scope::new("profile".to_string()))
+            .url();
+
+        auth_url.to_string()
+    }
+
     pub async fn exchange_code(&self, code: String) -> Result<String, OAuthError> {
         let client_id = std::env::var("GOOGLE_CLIENT_ID")
             .expect("GOOGLE_CLIENT_ID must be set");