From 2ddfb9646e556625d10df474569d2ad160afc81a Mon Sep 17 00:00:00 2001
From: trinity-y <tayip@uwaterloo.ca>
Date: Thu, 28 Nov 2024 22:34:57 -0500
Subject: [PATCH] add loading + error modals

---
 frontend/src/components/auth/Login.tsx | 127 ++++++++++++++++++-------
 1 file changed, 95 insertions(+), 32 deletions(-)

diff --git a/frontend/src/components/auth/Login.tsx b/frontend/src/components/auth/Login.tsx
index 2ad1e14..b5a6716 100644
--- a/frontend/src/components/auth/Login.tsx
+++ b/frontend/src/components/auth/Login.tsx
@@ -1,4 +1,5 @@
 import React, { useContext, useState, useEffect } from "react";
+import { Text, Flex } from "@chakra-ui/react";
 import { Redirect } from "react-router-dom";
 import { isSignInWithEmailLink } from "firebase/auth";
 import auth from "../../firebase/firebase";
@@ -6,14 +7,19 @@ import authAPIClient from "../../APIClients/AuthAPIClient";
 import { CREATE_PASSWORD_PAGE, HOME_PAGE } from "../../constants/Routes";
 import AuthContext from "../../contexts/AuthContext";
 import { AuthenticatedUser } from "../../types/AuthTypes";
+import ResponsiveModalWindow from "../common/responsive/ResponsiveModalWindow";
 
 const Login = (): React.ReactElement => {
   const { authenticatedUser, setAuthenticatedUser } = useContext(AuthContext);
   const [email, setEmail] = useState("");
   const [password, setPassword] = useState("");
   const [redirectTo, setRedirectTo] = useState<string | null>(null);
+  const [status, setStatus] = useState<"loading" | "error" | "default">(
+    "default",
+  );
 
   useEffect(() => {
+    setStatus("loading");
     const checkIfSignInLink = async () => {
       const url = window.location.href;
       const urlSearchParams = new URLSearchParams(window.location.search);
@@ -25,8 +31,14 @@ const Login = (): React.ReactElement => {
           url,
           signInEmail,
         );
-        setAuthenticatedUser(user);
-        setRedirectTo(CREATE_PASSWORD_PAGE);
+        if (user) {
+          setAuthenticatedUser(user);
+          setRedirectTo(CREATE_PASSWORD_PAGE);
+        } else {
+          setStatus("error");
+        }
+      } else {
+        setStatus("default");
       }
     };
 
@@ -48,36 +60,87 @@ const Login = (): React.ReactElement => {
 
   return (
     <>
-      <div style={{ textAlign: "center" }}>
-        <h1>Login</h1>
-        <form>
-          <div>
-            <input
-              type="email"
-              value={email}
-              onChange={(event) => setEmail(event.target.value)}
-              placeholder="username@domain.com"
-            />
-          </div>
-          <div>
-            <input
-              type="password"
-              value={password}
-              onChange={(event) => setPassword(event.target.value)}
-              placeholder="password"
-            />
-          </div>
-          <div>
-            <button
-              className="btn btn-primary"
-              type="button"
-              onClick={onLogInClick}
-            >
-              Log In
-            </button>
-          </div>
-        </form>
-      </div>
+      {status === "loading" && (
+        <Flex
+          maxWidth="100vw"
+          height="100vh"
+          position="relative"
+          backgroundRepeat="no-repeat"
+          backgroundPosition="center"
+          backgroundSize="cover"
+          sx={{
+            "@media (orientation: landscape)": {
+              height: "auto",
+              minHeight: "100vh",
+              overflowY: "auto",
+            },
+          }}
+        >
+          <ResponsiveModalWindow>
+            <Text color="#2C5282" textAlign="center">
+              Loading, please wait...
+            </Text>
+          </ResponsiveModalWindow>
+        </Flex>
+      )}
+
+      {status === "error" && (
+        <Flex
+          maxWidth="100vw"
+          height="100vh"
+          position="relative"
+          backgroundRepeat="no-repeat"
+          backgroundPosition="center"
+          backgroundSize="cover"
+          sx={{
+            "@media (orientation: landscape)": {
+              height: "auto",
+              minHeight: "100vh",
+              overflowY: "auto",
+            },
+          }}
+        >
+          <ResponsiveModalWindow>
+            <Text color="red.500" textAlign="center">
+              An error occurred. If your link is expired, ask an adminstrator
+              for assistance.
+            </Text>
+          </ResponsiveModalWindow>
+        </Flex>
+      )}
+
+      {status === "default" && !redirectTo && (
+        <div style={{ textAlign: "center" }}>
+          <h1>Login</h1>
+          <form>
+            <div>
+              <input
+                type="email"
+                value={email}
+                onChange={(event) => setEmail(event.target.value)}
+                placeholder="username@domain.com"
+              />
+            </div>
+            <div>
+              <input
+                type="password"
+                value={password}
+                onChange={(event) => setPassword(event.target.value)}
+                placeholder="password"
+              />
+            </div>
+            <div>
+              <button
+                className="btn btn-primary"
+                type="button"
+                onClick={onLogInClick}
+              >
+                Log In
+              </button>
+            </div>
+          </form>
+        </div>
+      )}
     </>
   );
 };