init: add code

app/routes/login.tsx

@@ -0,0 +1,92 @@
+import { useState } from "react";
+import { useNavigate } from "react-router";
+
+export default function LoginPage() {
+  const [loginRegisterSelection, setLoginRegisterSelection] = useState("option1");
+  const [userEmail, setUserEmail] = useState("");
+  const [userPassword, setUserPassword] = useState("");
+  const [userName, setUserName] = useState("");
+  const [userDisplayName, setUserDisplayName] = useState("");
+  const navigate = useNavigate();
+
+  async function loginOrRegister() {
+    if (loginRegisterSelection === "login") {
+      const response = await fetch("http://localhost:8787/users/login", {
+        method: "POST",
+        headers: {
+          "Content-Type": "application/json",
+        },
+        body: JSON.stringify({
+          email: userEmail,
+          password: userPassword // god bless HTTPS
+        }),
+        credentials: 'include'
+      });
+      if (!response.ok) {
+        throw new Error(`Got ${response.status} when trying to log in.`)
+      }
+      navigate("/");
+    } else {
+      const response = await fetch("http://localhost:8787/users/create", {
+        method: "POST",
+        headers: {
+          "Content-Type": "application/json",
+        },
+        body: JSON.stringify({
+          email: userEmail,
+          password: userPassword,
+          name: userName,
+          display_name: userDisplayName
+        }),
+        credentials: 'include'
+      });
+      if (!response.ok) {
+        throw new Error(`Got ${response.status} when trying to register.`)
+      }
+
+      navigate("/");
+    }
+
+  }
+
+  return (
+    <div className="absolute top-1/2 left-1/2 -translate-x-1/2 -translate-y-1/2 p-5 shadow-none shadow-black/0 hover:shadow-black/40 hover:shadow-2xl rounded-2xl bg-[#151515] text-center transition ease-in-out duration-300 hover:ring-2 hover:ring-[#cccccc]">
+      <h1 className="text-2xl font-black">Login/Register</h1>
+      <form action={loginOrRegister}>
+        <div className="flex gap-4 justify-center">
+          <div>
+            <input type="radio" id="loginOption" name="loginRegisterSelection" value="Login" checked={loginRegisterSelection === 'login'} onChange={() => setLoginRegisterSelection('login')} />
+            <label htmlFor="loginOption">Login</label>
+          </div>
+          <div>
+            <input type="radio" id="registerOption" name="loginRegisterSelection" value="Register" checked={loginRegisterSelection === 'register'} onChange={() => setLoginRegisterSelection('register')} />
+            <label htmlFor="registerOption">Register</label>
+          </div>
+        </div>
+
+        <div className="flex m-2 my-3">
+          <label htmlFor="email" className="mx-4">Email</label>
+          <input type="text" id="email" className="border-[1px] border-white rounded-xl text-center" onChange={(e) => setUserEmail(e.target.value)} />
+        </div>
+        <div className="flex m-2 my-3">
+          <label htmlFor="password" className="mx-4">Password</label>
+          <input type="text" id="password" className="border-[1px] border-white rounded-xl text-center" onChange={(e) => setUserPassword(e.target.value)} />
+        </div>
+        {loginRegisterSelection === 'register' &&
+          <>
+            <div className="flex m-2 my-3">
+              <label htmlFor="username" className="mx-4">Username</label>
+              <input type="text" id="username" className="border-[1px] border-white rounded-xl text-center" onChange={(e) => setUserName(e.target.value)} />
+            </div>
+            <div className="flex m-2 my-3">
+              <label htmlFor="displayName" className="mx-4">Display name</label>
+              <input type="text" id="displayName" className="border-[1px] border-white rounded-xl text-center" onChange={(e) => setUserDisplayName(e.target.value)} />
+            </div>
+          </>
+        }
+
+        <button className="bg-white text-black font-bold rounded-xl p-2" role="submit">login/register</button>
+      </form>
+    </div>
+  )
+}