introduce the auth provider

src/contexts/authcontext.tsx

@@ -0,0 +1,69 @@
+import axios from 'axios';
+import { createContext, Dispatch, SetStateAction, useEffect, useState } from 'react';
+import { useNavigate } from 'react-router-dom';
+import { Configuration } from '../services';
+
+export interface User {
+  vatsimId: string;
+  fullName: string;
+  administrator: boolean;
+  airportConfigurationAccess: string[];
+};
+
+const AuthContext = createContext<{
+  auth: { valid: boolean; user: User };
+  setAuth: Dispatch<SetStateAction<{ valid: boolean; user: User }>>;
+}>({ auth: {
+  valid: false,
+  user: {
+    vatsimId: '',
+    fullName: '',
+    administrator: false,
+    airportConfigurationAccess: [],
+  },
+}, setAuth: () => {} });
+
+export const AuthProvider = ({ children }: { children: any }) => {
+  const [auth, setAuth] = useState<{ valid: boolean; user: User }>({
+    valid: false,
+    user: {
+      vatsimId: '',
+      fullName: '',
+      administrator: false,
+      airportConfigurationAccess: [],
+    },
+  });
+  const navigate = useNavigate();
+
+  useEffect(() => {
+    axios.get<User>(`${Configuration.resourceServer}/auth/user`, {
+      headers: {
+        Authorization: `Bearer ${sessionStorage.getItem('token')}`,
+      },
+    }).then((response) => {
+      setAuth({ valid: true, user: response.data });
+    }).catch(() => {
+      setAuth({
+        valid: false,
+        user: {
+          vatsimId: '',
+          fullName: '',
+          administrator: false,
+          airportConfigurationAccess: [],
+        },
+      });
+      navigate('/');
+    })
+  // eslint-disable-next-line react-hooks/exhaustive-deps
+  }, []);
+
+  return (
+    <>
+      <AuthContext.Provider value={{ auth, setAuth }}>
+        {children}
+      </AuthContext.Provider>
+    </>
+  );
+};
+
+export default AuthContext;

src/contexts/index.ts

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+import AuthContext, { AuthProvider } from "./authcontext";
+
+export { AuthContext, AuthProvider };