Major refactoring

src/contexts/CASProvider.tsx

@@ -0,0 +1,48 @@
+import React, { useState, useEffect } from 'react';
+import { User } from '../types';
+
+export interface CASContext {
+  user: User | null;
+  logout: () => void;
+}
+
+export const CASContext = React.createContext<CASContext | null>(null);
+
+export interface CASProviderProps {
+  children: React.ReactNode;
+}
+
+export const CASProvider = ({ children }: CASProviderProps) => {
+  const [user, setUser] = useState<User | null>(null);
+
+  useEffect(() => {
+    login();
+  }, []);
+
+  function login() {
+    const urlParams = new URLSearchParams(window.location.search);
+    const ticket = urlParams.get('ticket');
+
+    if (!ticket) {
+      redirectToCASLoginService();
+    }
+    if (ticket) {
+      console.log(`Ticket is: ${ticket}`);
+      setUser({ ...user, ticket: ticket });
+    }
+  }
+
+  function logout() {
+    redirectToCASLogoutService();
+  }
+
+  function redirectToCASLogoutService() {
+    window.location.replace(`https://cas.amu.edu.pl/cas/logout?service=${window.origin}`);
+  }
+
+  function redirectToCASLoginService() {
+    window.location.replace(`https://cas.amu.edu.pl/cas/login?service=${window.origin}&locale=pl`);
+  }
+
+  return <CASContext.Provider value={{ user, logout }}>{children}</CASContext.Provider>;
+};