ThreadCount
057da00fd2
Uniform stock management for healthcare linen rooms: the coordinator app, the phone counter and the staff app, for your own server. Built from e2d6d42 on 2026-09-13. Licensed under the Functional Source License (FSL-1.1-ALv2).
188 lines
10 KiB
TypeScript
188 lines
10 KiB
TypeScript
"use client";
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/* Turning a second factor on, from your own account settings.
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*
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* Optional, with admins prompted rather than forced. Issuers are casual counter users on shared
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* ward phones, where mandatory TOTP gets worked around — shared logins, codes written on the wall
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* — which is worse than not having it. Admins can change pricing, delete records and wipe the
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* facility, so they get a standing nudge.
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*
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* Recovery codes are shown exactly once, at the moment they are created, because they are stored
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* hashed. The copy says so plainly: an admin locked out with no codes is a locked-out facility,
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* since deleting the last admin deletes everything.
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*/
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import { useCallback, useEffect, useState } from "react";
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import { Field } from "@/components/ui";
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type Status = { enabled: boolean; enabledAt: string | null; recoveryLeft: number };
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export default function TwoFactor({ isAdmin }: { isAdmin: boolean }) {
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const [st, setSt] = useState<Status | null>(null);
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const [busy, setBusy] = useState(false);
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const [err, setErr] = useState("");
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const [setup, setSetup] = useState<{ secret: string; qr: string } | null>(null);
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const [code, setCode] = useState("");
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const [pw, setPw] = useState("");
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const [codes, setCodes] = useState<string[] | null>(null);
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const [confirming, setConfirming] = useState<"disable" | "regenerate" | null>(null);
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/* A failed status fetch used to render nothing at all.
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*
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* With no catch and no error state, `if (!st) return null` meant a dropped connection or a 500
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* deleted the whole two-factor section out of Settings → Account — silently, so somebody who
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* came here to turn 2FA on found no control and no explanation, and the honest conclusion is
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* that ThreadCount doesn't offer it. Saying so and offering the retry is the difference between
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* a hiccup and a feature that appears not to exist. */
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const [loadErr, setLoadErr] = useState("");
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const load = useCallback(async () => {
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setLoadErr("");
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try {
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const r = await fetch("/api/2fa");
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if (!r.ok) { const j = await r.json().catch(() => ({})); setLoadErr(j.error || "Couldn’t check whether two-factor is on."); return; }
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setSt(await r.json());
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} catch {
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setLoadErr("Couldn’t reach the server, so we can’t say whether two-factor is on.");
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}
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}, []);
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useEffect(() => { void load(); }, [load]);
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async function post(body: Record<string, unknown>) {
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setBusy(true); setErr("");
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const r = await fetch("/api/2fa", { method: "POST", headers: { "content-type": "application/json" }, body: JSON.stringify(body) });
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const j = await r.json().catch(() => ({}));
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setBusy(false);
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if (!r.ok) { setErr(j.error || "That didn’t work."); return null; }
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return j;
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}
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const box: React.CSSProperties = { border: "2px solid var(--color-text)", padding: 20, marginTop: 16 };
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if (loadErr) {
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return (
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<div style={box}>
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<div style={{ fontFamily: "var(--font-heading)", fontWeight: 800, fontSize: 20 }}>Two-factor authentication</div>
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<p role="alert" style={{ fontSize: 13.5, lineHeight: 1.6, marginTop: 8, color: "var(--color-accent-700)", fontWeight: 600, maxWidth: "60ch" }}>{loadErr}</p>
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<div style={{ marginTop: 16 }}><button className="btn btn-secondary" onClick={() => void load()}>Try again</button></div>
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</div>
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);
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}
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if (!st) return null;
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// Shown once, immediately after enabling or regenerating.
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if (codes) {
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return (
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<div style={box}>
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<div style={{ fontFamily: "var(--font-heading)", fontWeight: 800, fontSize: 20 }}>Save these recovery codes</div>
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<p style={{ fontSize: 13.5, lineHeight: 1.6, marginTop: 8, color: "var(--color-neutral-800)", maxWidth: "60ch" }}>
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Each works once, in place of a code from your app. This is the only time they can be
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shown — they are stored hashed, so nobody, including us, can read them back. Print them or
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put them somewhere you would still reach without your phone.
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</p>
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<div style={{ display: "grid", gridTemplateColumns: "repeat(auto-fit, minmax(150px, 1fr))", gap: 8, marginTop: 16, fontFamily: "monospace", fontSize: 15 }}>
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{codes.map((c) => <div key={c} style={{ border: "1px solid var(--color-divider)", padding: "8px 10px", background: "#fff" }}>{c}</div>)}
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</div>
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<div style={{ display: "flex", gap: 10, marginTop: 16, flexWrap: "wrap" }}>
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<button className="btn btn-secondary" onClick={() => navigator.clipboard?.writeText(codes.join("\n")).catch(() => {})}>Copy all</button>
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<button className="btn btn-primary" onClick={() => { setCodes(null); setSetup(null); setCode(""); void load(); }}>I have saved them</button>
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</div>
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</div>
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);
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}
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if (setup) {
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return (
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<div style={box}>
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<div style={{ fontFamily: "var(--font-heading)", fontWeight: 800, fontSize: 20 }}>Scan this with your authenticator</div>
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<p style={{ fontSize: 13.5, lineHeight: 1.6, marginTop: 8, color: "var(--color-neutral-800)", maxWidth: "60ch" }}>
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Any authenticator app will do. Then type the six-digit code it shows to prove it worked —
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nothing changes until you do.
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</p>
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<div style={{ display: "flex", gap: 24, marginTop: 16, flexWrap: "wrap", alignItems: "flex-start" }}>
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<div style={{ background: "#fff", padding: 10, border: "1px solid var(--color-divider)" }} dangerouslySetInnerHTML={{ __html: setup.qr }} />
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<div>
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<div style={{ fontSize: 11.5, fontWeight: 700, letterSpacing: "0.1em", textTransform: "uppercase", color: "var(--color-neutral-600)" }}>Or type it in</div>
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<div style={{ fontFamily: "monospace", fontSize: 14, wordBreak: "break-all", maxWidth: 260, marginTop: 6 }}>{setup.secret}</div>
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</div>
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</div>
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<Field style={{ marginTop: 16, maxWidth: 220 }} label="Code from the app">
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{(c) => (
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<input {...c} className="input" inputMode="numeric" autoComplete="one-time-code" value={code} placeholder="000000"
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onChange={(e) => { setCode(e.target.value); setErr(""); }} />
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)}
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</Field>
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{err && <div style={{ marginTop: 10, color: "var(--color-accent-700)", fontWeight: 700, fontSize: 13.5 }}>{err}</div>}
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<div style={{ display: "flex", gap: 10, marginTop: 16, flexWrap: "wrap" }}>
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<button className="btn btn-primary" disabled={busy} onClick={async () => {
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const j = await post({ action: "enable", code });
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if (j?.codes) setCodes(j.codes);
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}}>{busy ? "Checking…" : "Turn it on"}</button>
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<button className="btn btn-secondary" onClick={() => { setSetup(null); setCode(""); setErr(""); }}>Cancel</button>
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</div>
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</div>
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);
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}
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return (
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<div style={box}>
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<div style={{ display: "flex", alignItems: "baseline", gap: 12, flexWrap: "wrap" }}>
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<div style={{ fontFamily: "var(--font-heading)", fontWeight: 800, fontSize: 20 }}>Two-factor authentication</div>
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<span className={st.enabled ? "tag tag-accent" : "tag tag-neutral"}>{st.enabled ? "On" : "Off"}</span>
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</div>
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{st.enabled ? (
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<>
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<p style={{ fontSize: 13.5, lineHeight: 1.6, marginTop: 8, color: "var(--color-neutral-800)", maxWidth: "60ch" }}>
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Signing in asks for a code from your authenticator app as well as your password.{" "}
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{st.recoveryLeft} recovery code{st.recoveryLeft === 1 ? "" : "s"} left.
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{st.recoveryLeft <= 2 && " Worth generating a fresh set."}
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</p>
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{confirming ? (
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<div style={{ marginTop: 14, maxWidth: 320 }}>
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<Field label="Confirm with your password">
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{(c) => (
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<input {...c} className="input" type="password" autoComplete="current-password" value={pw}
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onChange={(e) => { setPw(e.target.value); setErr(""); }} />
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)}
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</Field>
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{err && <div style={{ marginTop: 8, color: "var(--color-accent-700)", fontWeight: 700, fontSize: 13.5 }}>{err}</div>}
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<div style={{ display: "flex", gap: 10, marginTop: 12, flexWrap: "wrap" }}>
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<button className="btn btn-primary" disabled={busy} onClick={async () => {
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const j = await post({ action: confirming, password: pw });
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if (!j) return;
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setPw(""); setConfirming(null);
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if (j.codes) setCodes(j.codes); else void load();
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}}>{busy ? "Working…" : confirming === "disable" ? "Turn it off" : "Generate new codes"}</button>
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<button className="btn btn-secondary" onClick={() => { setConfirming(null); setPw(""); setErr(""); }}>Cancel</button>
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</div>
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</div>
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) : (
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<div style={{ display: "flex", gap: 10, marginTop: 14, flexWrap: "wrap" }}>
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<button className="btn btn-secondary" onClick={() => setConfirming("regenerate")}>New recovery codes</button>
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<button className="btn btn-secondary" onClick={() => setConfirming("disable")}>Turn off</button>
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</div>
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)}
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</>
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) : (
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<>
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<p style={{ fontSize: 13.5, lineHeight: 1.6, marginTop: 8, color: "var(--color-neutral-800)", maxWidth: "60ch" }}>
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A code from your phone as well as your password. ThreadCount holds names, payroll
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numbers and phone numbers for every person on your register, and a password on its own
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is thin protection for that.
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</p>
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{isAdmin && (
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<p style={{ fontSize: 13.5, lineHeight: 1.6, marginTop: 10, color: "var(--color-accent-700)", fontWeight: 600, maxWidth: "60ch" }}>
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You are an admin — you can change pricing, delete records and delete the facility.
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Worth turning on.
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</p>
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)}
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{err && <div style={{ marginTop: 10, color: "var(--color-accent-700)", fontWeight: 700, fontSize: 13.5 }}>{err}</div>}
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<button className="btn btn-primary" style={{ marginTop: 14 }} disabled={busy} onClick={async () => {
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const j = await post({ action: "setup" });
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if (j) setSetup({ secret: j.secret, qr: j.qr });
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}}>{busy ? "Preparing…" : "Set up two-factor"}</button>
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</>
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)}
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</div>
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);
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}
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