src/components/login-form.tsx
Rama main · réplica de lectura del repositorio original.
"use client";
import { useActionState, useEffect, useState } from "react";
import { useFormStatus } from "react-dom";
import { AnimatePresence, motion, type Variants } from "framer-motion";
import { EyeIcon, EyeOffIcon, LoaderCircleIcon } from "lucide-react";
import { Button } from "@/components/ui/button";
import { Input } from "@/components/ui/input";
import { Label } from "@/components/ui/label";
import { HiredMark3D } from "@/components/hired-mark-3d";
import { loginAction } from "@/server/actions";
/** The deceleration the whole app settles on: fast, then coasting. */
const EASE = [0.16, 1, 0.3, 1] as const;
/**
* The card arrives as one object and then hands out its contents in order. The
* blur is what makes it read as coming into focus rather than sliding: a card
* that only translates looks like a slide transition, and this is a door
* opening.
*/
const card: Variants = {
hidden: { opacity: 0, y: 26, scale: 0.965, filter: "blur(10px)" },
shown: {
opacity: 1,
y: 0,
scale: 1,
filter: "blur(0px)",
transition: { duration: 0.85, ease: EASE, delayChildren: 0.22, staggerChildren: 0.07 },
},
};
/**
* One row of the card. Exported because the setup and invitation forms are the
* same door and stagger the same way — anything that is a direct child of
* `AuthCard` and wants its turn in the sequence wears this.
*/
export const authRise: Variants = {
hidden: { opacity: 0, y: 10, filter: "blur(5px)" },
shown: { opacity: 1, y: 0, filter: "blur(0px)", transition: { duration: 0.55, ease: EASE } },
};
/**
* A row that is itself a list of rows — the form. It rises like any other and
* then walks its own fields in, tighter than the card walks its sections, so
* the whole sequence still lands inside a second.
*/
export const authGroup: Variants = {
hidden: { opacity: 0, y: 10, filter: "blur(5px)" },
shown: {
opacity: 1,
y: 0,
filter: "blur(0px)",
transition: { duration: 0.55, ease: EASE, staggerChildren: 0.05 },
},
};
/** The signed-in flag this instance leaves on a shared domain, if it leaves one. */
export type SignedInHint = { cookie: string; domain: string };
export function LoginForm({
instanceName,
googleReady,
openSignup,
allowedDomains,
notice,
signedInHint,
owner,
}: {
instanceName: string;
googleReady: boolean;
/** Whether a stranger with a Google account can actually get in from here. */
openSignup: boolean;
allowedDomains: string;
/** A refusal carried back from the Google callback, in Google's own words. */
notice?: string;
signedInHint: SignedInHint | null;
/** Who to ask when you are locked out. Null on an instance with no owner. */
owner: { name: string; email: string } | null;
}) {
const [state, formAction] = useActionState(loginAction, undefined);
/**
* Reaching this page means there is no session here — it redirects into the
* app when there is one. So a hint still sitting on the shared domain is
* stale, left by a session that expired or was ended from somewhere else, and
* the landing page would go on bouncing this browser here for another month.
* Clearing it is one line and this is the only page that can: the cookie is
* deliberately script-readable, and this is the page that knows it is wrong.
*/
useEffect(() => {
if (!signedInHint) return;
document.cookie = `${signedInHint.cookie}=; Max-Age=0; Path=/; Domain=${signedInHint.domain}`;
}, [signedInHint]);
return (
<AuthCard title={instanceName} subtitle="Sign in to your job search.">
{notice && (
<motion.p
variants={authRise}
className="border-warning/40 bg-warning-tint text-warning mb-5 rounded-lg border px-3 py-2 text-[13px]"
>
{notice}
</motion.p>
)}
{googleReady && (
<motion.div variants={authRise}>
<GoogleButton />
<div className="my-5 flex items-center gap-3">
<span className="auth-rule bg-border h-px flex-1" />
<span className="text-faint text-[11px] tracking-wide uppercase">or</span>
<span className="auth-rule bg-border h-px flex-1" />
</div>
</motion.div>
)}
<motion.form variants={authGroup} action={formAction} className="space-y-4">
<motion.div variants={authRise} className="space-y-2">
<Label htmlFor="email">Email</Label>
<Input
id="email"
name="email"
type="email"
required
autoFocus
autoComplete="username"
placeholder="you@example.com"
/>
</motion.div>
<motion.div variants={authRise} className="space-y-2">
<PasswordField
id="password"
label="Password"
autoComplete="current-password"
placeholder="••••••••••"
/>
</motion.div>
<motion.label
variants={authRise}
htmlFor="remember"
className="text-muted-foreground flex w-fit cursor-pointer items-center gap-2 text-[13px] leading-none font-medium select-none"
>
{/* A real checkbox rather than the Radix one. This form posts to a
server action and still works with scripting off, and Radix only
grows the hidden input carrying its value once it has hydrated —
which would quietly shorten the session of anyone without it. */}
<input
id="remember"
name="remember"
type="checkbox"
defaultChecked
className="accent-primary size-4 cursor-pointer"
/>
Keep me signed in for a month
</motion.label>
<AuthError message={state?.error} />
<motion.div variants={authRise}>
<SubmitButton label="Sign in" pendingLabel="Signing in…" />
</motion.div>
</motion.form>
{/* The truth here changes with the sign-up setting, and getting it wrong
in either direction wastes somebody's time: telling an invited person
they cannot get in, or inviting a stranger to press a button that
will refuse them. */}
<motion.p variants={authRise} className="text-muted-foreground mt-6 text-center text-xs">
{!openSignup ? (
<>
Accounts here are invite-only. {askWho(owner)} for an invitation, or to reset a
password you’ve lost.
</>
) : allowedDomains ? (
`Continue with Google to create an account, if your address is on ${allowedDomains}.`
) : (
<>Continue with Google to create an account, or {askWho(owner)} for an invitation.</>
)}
</motion.p>
</AuthCard>
);
}
/**
* A link, not a button with an onClick — the whole flow is a browser redirect,
* so there is no client-side work to do and this keeps working with JavaScript
* still loading. The mark is inline SVG because the artifact CSP and the
* offline-first posture both rule out fetching it from Google.
*/
export function GoogleButton({ label = "Continue with Google" }: { label?: string }) {
return (
<Button asChild variant="outline" size="lg" className="w-full">
<a href="/api/auth/google">
<GoogleMark />
{label}
</a>
</Button>
);
}
function GoogleMark() {
return (
<svg viewBox="0 0 18 18" className="size-4" aria-hidden="true">
<path
fill="#4285F4"
d="M17.64 9.2c0-.64-.06-1.25-.16-1.84H9v3.48h4.84a4.14 4.14 0 0 1-1.8 2.72v2.26h2.92c1.7-1.57 2.68-3.88 2.68-6.62Z"
/>
<path
fill="#34A853"
d="M9 18c2.43 0 4.47-.8 5.96-2.18l-2.92-2.26c-.8.54-1.84.86-3.04.86-2.34 0-4.32-1.58-5.03-3.7H.96v2.33A9 9 0 0 0 9 18Z"
/>
<path
fill="#FBBC05"
d="M3.97 10.72a5.4 5.4 0 0 1 0-3.44V4.95H.96a9 9 0 0 0 0 8.1l3.01-2.33Z"
/>
<path
fill="#EA4335"
d="M9 3.58c1.32 0 2.5.45 3.44 1.35l2.58-2.58C13.46.9 11.43 0 9 0A9 9 0 0 0 .96 4.95l3.01 2.33C4.68 5.16 6.66 3.58 9 3.58Z"
/>
</svg>
);
}
/**
* The card every unauthenticated page is inside.
*
* Its children are staggered rather than faded in as a block, so the eye is
* walked down the form in the order it will be filled in — mark, name of the
* instance, then each thing you have to do, arriving about seventy milliseconds
* apart. Anything a caller passes that is a `motion` element wearing
* `authRise` takes its place in that sequence; anything else simply appears
* with the card, which is a fine second-best and needs no coordination.
*/
export function AuthCard({
title,
subtitle,
children,
}: {
title: string;
subtitle: string;
children: React.ReactNode;
}) {
return (
<motion.div
variants={card}
initial="hidden"
animate="shown"
className="auth-card w-full max-w-sm p-8"
>
<motion.div variants={authRise} className="mb-7 flex flex-col items-center text-center">
<HiredMark3D size={84} className="mb-5" />
<h1 className="text-2xl font-semibold tracking-tight text-balance">{title}</h1>
<p className="text-muted-foreground mt-1.5 text-sm text-balance">{subtitle}</p>
</motion.div>
{children}
</motion.div>
);
}
/**
* A refusal, arriving and leaving rather than blinking in and out. `popLayout`
* so the button underneath moves once, with the message, instead of jumping the
* instant the text is removed.
*/
export function AuthError({ message }: { message?: string }) {
return (
<AnimatePresence mode="popLayout" initial={false}>
{message && (
<motion.p
key={message}
initial={{ opacity: 0, height: 0, y: -4 }}
animate={{ opacity: 1, height: "auto", y: 0 }}
exit={{ opacity: 0, height: 0, y: -4 }}
transition={{ duration: 0.32, ease: EASE }}
className="text-destructive overflow-hidden text-sm"
>
{message}
</motion.p>
)}
</AnimatePresence>
);
}
export function SubmitButton({
label,
pendingLabel,
}: {
label: string;
pendingLabel: string;
}) {
const { pending } = useFormStatus();
return (
<Button
type="submit"
variant="default"
size="lg"
className="auth-submit w-full"
disabled={pending}
>
{/* Both labels are laid on top of each other and cross-faded, so the
button never changes width mid-submit — "Sign in" and "Signing in…"
are different lengths and a resizing primary action reads as a
glitch. The invisible one is the longer of the two, which is what
holds the width. */}
<span className="relative inline-flex items-center justify-center gap-2">
<span aria-hidden className="invisible flex items-center gap-2">
<LoaderCircleIcon className="size-4" />
{pendingLabel.length > label.length ? pendingLabel : label}
</span>
<AnimatePresence initial={false} mode="popLayout">
<motion.span
key={pending ? "pending" : "idle"}
initial={{ opacity: 0, y: 6 }}
animate={{ opacity: 1, y: 0 }}
exit={{ opacity: 0, y: -6 }}
transition={{ duration: 0.22, ease: EASE }}
className="absolute inset-0 flex items-center justify-center gap-2"
>
{pending && <LoaderCircleIcon className="size-4 animate-spin" />}
{pending ? pendingLabel : label}
</motion.span>
</AnimatePresence>
</span>
</Button>
);
}
/**
* A password box you can look at.
*
* The sign-in screen had this and the two screens where you INVENT a password —
* the invitation and the first-boot setup — did not: a bare dot field, no
* reveal, no minimum enforced in the browser, so the only feedback on a short
* one was a round trip to the server. That is the wrong way round. Somebody
* typing a password they already know can retype it; somebody making one up on
* a phone keyboard needs to see it.
*
* `minLength` matches the server's rule so the browser says it first, and the
* server still says it too — the client is a courtesy, never the check.
*/
export function PasswordField({
id,
name,
label,
autoComplete,
placeholder,
minLength,
hint,
}: {
id: string;
name?: string;
label: string;
autoComplete: string;
placeholder: string;
minLength?: number;
hint?: string;
}) {
const [shown, setShown] = useState(false);
return (
<>
<Label htmlFor={id}>{label}</Label>
<div className="relative">
<Input
id={id}
name={name ?? id}
type={shown ? "text" : "password"}
required
minLength={minLength}
autoComplete={autoComplete}
placeholder={placeholder}
className="pr-10"
/>
<button
type="button"
onClick={() => setShown((was) => !was)}
aria-label={shown ? "Hide password" : "Show password"}
aria-pressed={shown}
className="text-faint hover:text-foreground absolute inset-y-0 right-0 flex w-10 cursor-pointer items-center justify-center rounded-r-control transition-colors focus-visible:ring-ring/25 focus-visible:ring-2 outline-none"
>
{shown ? <EyeOffIcon className="size-4" /> : <EyeIcon className="size-4" />}
</button>
</div>
{hint && <p className="text-faint text-[12px]">{hint}</p>}
</>
);
}
/**
* "Ask Priya" with her address behind it, rather than "ask an admin".
*
* The only way back from a lost password on this instance is a person, and the
* page that says so is the one page somebody locked out can actually reach. It
* named a role instead of a name, which is no help at all to a friend who was
* invited by a friend.
*/
function askWho(owner: { name: string; email: string } | null) {
if (!owner) return "Ask whoever runs this";
return (
<>
Ask{" "}
<a className="hover:text-foreground underline underline-offset-2" href={`mailto:${owner.email}`}>
{owner.name || owner.email}
</a>
</>
);
}