Add basic index, complete login route with validation

src/pages/login.tsx

@@ -0,0 +1,55 @@
+import {NextPage} from "next";
+import {useForm} from "react-hook-form";
+import {useState} from "react";
+import {useRouter} from "next/router";
+
+
+const LoginPage: NextPage = () => {
+    type FormProps = { token: string; }
+    const {handleSubmit, register} = useForm<FormProps>();
+    const [error, setError] = useState<boolean | null>(null);
+    const router = useRouter();
+
+    async function onSubmit(data: FormProps) {
+        const response = await fetch(`/api/check?key=${data.token}`)
+        if (response.status === 200) {
+            setError(false);
+            router.push({pathname: "/", query: {"key": data.token}}).then();
+        } else
+            setError(true);
+        console.log(response);
+    }
+
+    return <div className="flex bg-zinc-900 min-h-screen h-full flex-col justify-center py-12 sm:px-6 lg:px-8">
+        <div className="mt-8 sm:mx-auto sm:w-full sm:max-w-md">
+            <div className="bg-black/ py-8 px-4 shadow sm:rounded-lg sm:px-10">
+                <form className="space-y-6" onSubmit={handleSubmit(onSubmit)}>
+                    <div>
+                        <label htmlFor="password" className="block text-sm font-medium text-gray-400">
+                            Token
+                        </label>
+                        <div className="mt-1">
+                            <input
+                                {...register("token", {required: true})}
+                                className="bg-zinc-800/80 text-zinc-300 block w-full appearance-none rounded-md border border-zinc-700/80 px-3 py-2 placeholder-gray-400 shadow-sm focus:border-indigo-800/50 focus:outline-none focus:ring-indigo-500 sm:text-sm"
+                            />
+                        </div>
+                        {error ? <p className="mt-2 text-sm text-red-600" id="email-error">
+                            The token given was not valid.
+                        </p> : null}
+                    </div>
+                    <div>
+                        <button
+                            type="submit"
+                            className="flex w-full justify-center rounded-md border border-transparent bg-indigo-900/80 py-2 px-4 text-sm font-medium text-white shadow-sm hover:bg-indigo-900 focus:outline-none focus:ring-2 focus:ring-indigo-500 focus:ring-offset-2"
+                        >
+                            Sign in
+                        </button>
+                    </div>
+                </form>
+            </div>
+        </div>
+    </div>
+}
+
+export default LoginPage;