Files
game_list/frontend/src/Login.tsx
T
2026-01-12 18:32:59 +01:00

420 lines
12 KiB
TypeScript

import { useState, useRef, useEffect } from "react";
import { LoginRequest, LoginResponse } from "../items";
interface LoginProps {
onLogin: (token: string) => void;
}
export function Login({ onLogin }: LoginProps) {
const usernameInputRef = useRef<HTMLInputElement>(null);
const [username, setUsername] = useState("");
const [password, setPassword] = useState("");
const [error, setError] = useState("");
const [isSubmitting, setIsSubmitting] = useState(false);
const [fieldErrors, setFieldErrors] = useState<{ username?: string, password?: string }>({});
const [isSuccess, setIsSuccess] = useState(false);
const [shakeCard, setShakeCard] = useState(false);
useEffect(() => {
usernameInputRef.current?.focus();
}, []);
const validateForm = () => {
const errors: { username?: string, password?: string } = {};
if (!username.trim()) errors.username = "Username is required";
if (!password) errors.password = "Password is required";
setFieldErrors(errors);
return Object.keys(errors).length === 0;
};
const handleSubmit = async (e: React.FormEvent) => {
e.preventDefault();
setError("");
if (!validateForm()) {
setShakeCard(true);
setTimeout(() => setShakeCard(false), 500);
return;
}
setIsSubmitting(true);
try {
const req = LoginRequest.create({ username: username.trim(), password });
const body = LoginRequest.encode(req).finish();
const res = await fetch("/auth/login", {
method: "POST",
body,
headers: {
"Content-Type": "application/octet-stream",
},
});
const buffer = await res.arrayBuffer();
const response = LoginResponse.decode(new Uint8Array(buffer));
if (response.success) {
setIsSuccess(true);
onLogin(response.token);
} else {
setError(response.message || "Login failed");
setShakeCard(true);
setTimeout(() => setShakeCard(false), 500);
}
} catch (err) {
console.error("Login error:", err);
setError("An unexpected error occurred. Please try again.");
setShakeCard(true);
setTimeout(() => setShakeCard(false), 500);
} finally {
setIsSubmitting(false);
}
};
const handleKeyDown = (e: React.KeyboardEvent) => {
if (e.key === "Enter") {
handleSubmit(e);
}
};
return (
<div
className="card login-card"
style={{
maxWidth: "420px",
margin: "6rem auto",
padding: "2.5rem",
background: "linear-gradient(135deg, var(--secondary-bg) 0%, var(--secondary-alt-bg) 100%)",
position: "relative"
}}
>
{isSubmitting && (
<div
style={{
position: "absolute",
top: 0,
left: 0,
right: 0,
bottom: 0,
backgroundColor: "rgba(0, 0, 0, 0.5)",
borderRadius: "16px",
display: "flex",
alignItems: "center",
justifyContent: "center",
zIndex: 10,
backdropFilter: "blur(2px)"
}}
>
<div
style={{
width: "48px",
height: "48px",
border: "4px solid rgba(255, 255, 255, 0.2)",
borderTopColor: "white",
borderRadius: "50%",
animation: "spin 0.8s linear infinite"
}}
/>
</div>
)}
{isSuccess && (
<div
style={{
position: "absolute",
top: "50%",
left: "50%",
transform: "translate(-50%, -50%)",
display: "flex",
flexDirection: "column",
alignItems: "center",
gap: "1rem",
animation: "fadeInScale 0.5s ease forwards",
zIndex: 10
}}
>
<div
style={{
width: "64px",
height: "64px",
borderRadius: "50%",
backgroundColor: "#4caf50",
display: "flex",
alignItems: "center",
justifyContent: "center",
fontSize: "2rem",
color: "white",
boxShadow: "0 0 20px rgba(76, 175, 80, 0.5)"
}}
>
</div>
<span style={{ color: "#4caf50", fontWeight: 600, fontSize: "1.1rem" }}>
Success!
</span>
</div>
)}
<h2
style={{
textAlign: "center",
marginBottom: "0.5rem",
fontSize: "2rem",
fontWeight: 700
}}
>
🎮 Login
</h2>
<p
style={{
textAlign: "center",
color: "var(--text-muted)",
marginBottom: "2rem",
fontSize: "0.95rem"
}}
>
Welcome back! Please sign in to continue.
</p>
<form onSubmit={handleSubmit} className="form-group">
<div className="form-group" style={{ marginBottom: "1.5rem" }}>
<label
style={{
display: "block",
marginBottom: "0.5rem",
fontWeight: 500,
color: "var(--text-color)",
fontSize: "0.95rem"
}}
>
Username
</label>
<div
style={{
position: "relative",
display: "flex",
alignItems: "center"
}}
>
<span
style={{
position: "absolute",
left: "0.75rem",
color: "var(--text-muted)",
pointerEvents: "none",
fontSize: "1.1rem"
}}
>
👤
</span>
<input
ref={usernameInputRef}
type="text"
value={username}
onChange={(e) => {
setUsername(e.target.value);
if (fieldErrors.username) setFieldErrors({ ...fieldErrors, username: undefined });
}}
onKeyDown={handleKeyDown}
placeholder="Enter your username"
aria-label="Username"
aria-invalid={!!fieldErrors.username}
aria-describedby={fieldErrors.username ? "username-error" : undefined}
style={{
width: "100%",
paddingLeft: "2.75rem",
paddingRight: "0.75rem",
paddingTop: "0.75rem",
paddingBottom: "0.75rem",
borderColor: fieldErrors.username ? "#f44336" : undefined,
borderWidth: fieldErrors.username ? "2px" : "1px",
fontSize: "1rem"
}}
/>
</div>
{fieldErrors.username && (
<span
id="username-error"
role="alert"
style={{
color: "#ff6b6b",
fontSize: "0.85rem",
marginTop: "0.5rem",
display: "flex",
alignItems: "center",
gap: "0.25rem"
}}
>
⚠️ {fieldErrors.username}
</span>
)}
</div>
<div className="form-group" style={{ marginBottom: "2rem" }}>
<label
style={{
display: "block",
marginBottom: "0.5rem",
fontWeight: 500,
color: "var(--text-color)",
fontSize: "0.95rem"
}}
>
Password
</label>
<div
style={{
position: "relative",
display: "flex",
alignItems: "center"
}}
>
<span
style={{
position: "absolute",
left: "0.75rem",
color: "var(--text-muted)",
pointerEvents: "none",
fontSize: "1.1rem"
}}
>
🔒
</span>
<input
type="password"
value={password}
onChange={(e) => {
setPassword(e.target.value);
if (fieldErrors.password) setFieldErrors({ ...fieldErrors, password: undefined });
}}
onKeyDown={handleKeyDown}
placeholder="Enter your password"
aria-label="Password"
aria-invalid={!!fieldErrors.password}
aria-describedby={fieldErrors.password ? "password-error" : undefined}
style={{
width: "100%",
paddingLeft: "2.75rem",
paddingRight: "0.75rem",
paddingTop: "0.75rem",
paddingBottom: "0.75rem",
borderColor: fieldErrors.password ? "#f44336" : undefined,
borderWidth: fieldErrors.password ? "2px" : "1px",
fontSize: "1rem"
}}
/>
</div>
{fieldErrors.password && (
<span
id="password-error"
role="alert"
style={{
color: "#ff6b6b",
fontSize: "0.85rem",
marginTop: "0.5rem",
display: "flex",
alignItems: "center",
gap: "0.25rem"
}}
>
⚠️ {fieldErrors.password}
</span>
)}
</div>
<button
type="submit"
style={{
marginTop: "0.5rem",
width: "100%",
padding: "0.875rem",
fontSize: "1rem",
fontWeight: 600,
opacity: isSubmitting ? 0.7 : 1,
cursor: isSubmitting ? "not-allowed" : "pointer",
background: "linear-gradient(135deg, var(--accent-color) 0%, var(--secondary-accent) 100%)",
border: "none",
transition: "transform 0.1s, box-shadow 0.2s"
}}
disabled={isSubmitting}
onMouseEnter={(e) => {
if (!isSubmitting) {
e.currentTarget.style.transform = "translateY(-1px)";
e.currentTarget.style.boxShadow = "0 4px 12px rgba(9, 109, 192, 0.4)";
}
}}
onMouseLeave={(e) => {
if (!isSubmitting) {
e.currentTarget.style.transform = "translateY(0)";
e.currentTarget.style.boxShadow = "none";
}
}}
onMouseDown={(e) => {
if (!isSubmitting) {
e.currentTarget.style.transform = "translateY(0)";
}
}}
>
Login
</button>
</form>
{error && (
<div
role="alert"
style={{
backgroundColor: "rgba(244, 67, 54, 0.15)",
border: "1px solid rgba(244, 67, 54, 0.4)",
color: "#ff6b6b",
padding: "0.875rem 1rem",
borderRadius: "8px",
marginTop: "1.5rem",
textAlign: "center",
fontSize: "0.9rem",
display: "flex",
alignItems: "center",
justifyContent: "center",
gap: "0.5rem"
}}
>
⚠️ {error}
</div>
)}
<style>{`
@keyframes spin {
to { transform: rotate(360deg); }
}
@keyframes fadeInScale {
from {
opacity: 0;
transform: translate(-50%, -40%) scale(0.8);
}
to {
opacity: 1;
transform: translate(-50%, -50%) scale(1);
}
}
.login-card {
animation: ${shakeCard ? "shake 0.5s ease" : "none"};
}
@keyframes shake {
0%, 100% {
transform: translateX(0);
}
20%, 60% {
transform: translateX(-8px);
}
40%, 80% {
transform: translateX(8px);
}
}
`}</style>
</div>
);
}