Refactored business logic provider

src/businesslogic/BusinessLogicProvider.tsx

@@ -30,17 +30,25 @@ class BusinessLogicProvider extends Component<Props, BusinessState> {
 		const ticket = urlParams.get("ticket");
 
 		if (!ticket) {
-			window.location.replace(`https://cas.amu.edu.pl/cas/login?service=${window.origin}&locale=pl`);
+			this.redirectToCASLoginService();
 		}
-		if (ticket && !this.state.user) {
+		if (ticket) {
 			this.setState({ user: { ticket } });
 		}
 	}
 
 	logout() {
+		this.redirectToCASLogoutService();
+	}
+
+	redirectToCASLogoutService() {
 		window.location.replace(`https://cas.amu.edu.pl/cas/logout?service=${window.origin}`);
 	}
 
+	redirectToCASLoginService() {
+		window.location.replace(`https://cas.amu.edu.pl/cas/login?service=${window.origin}&locale=pl`);
+	}
+
 	render() {
 		return (
 			<BusinessLogicContext.Provider

src/businesslogic/models/user.ts

@@ -1,5 +1,5 @@
 export type User = {
 	name?: string;
 	surname?: string;
-	ticket: string;
+	ticket: string | null;
 };