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import { signIn, signOut } from "next-auth/react";
import {
LogIn,
LogOut,
Settings,
Shield,
ShieldCheck,
User,
Users,
} from "lucide-react";
import { useState, useRef, useEffect } from "react";
import { ROLE_LABELS, DEMO_PERSONAS, deriveParticipantType } from "@/lib/auth";
import {
useDemoPersona,
setDemoPersona,
clearDemoPersona,
} from "@/lib/use-demo-persona";
import { useTabSession, markSessionSwitch } from "@/lib/use-tab-session";
import { BuildInfo } from "@/components/BuildInfo";
/** Badge colours per role code — uses semantic CSS tokens, adapts to light/dark. */
const ROLE_BADGE: Record<string, string> = {
EDC_ADMIN: "bg-[var(--role-admin-bg)] text-[var(--role-admin-text)]",
EDC_USER_PARTICIPANT:
"bg-[var(--role-holder-bg)] text-[var(--role-holder-text)]",
HDAB_AUTHORITY: "bg-[var(--role-hdab-bg)] text-[var(--role-hdab-text)]",
DATA_HOLDER: "bg-[var(--role-holder-bg)] text-[var(--role-holder-text)]",
DATA_USER: "bg-[var(--role-user-bg)] text-[var(--role-user-text)]",
TRUST_CENTER_OPERATOR:
"bg-[var(--role-trust-bg)] text-[var(--role-trust-text)]",
PATIENT: "bg-[var(--role-patient-bg)] text-[var(--role-patient-text)]",
};
/** Dropdown border accent per primary role. */
const ROLE_ACCENT: Record<string, string> = {
EDC_ADMIN: "border-[var(--role-admin-border)]",
HDAB_AUTHORITY: "border-[var(--role-hdab-border)]",
DATA_HOLDER: "border-[var(--role-holder-border)]",
DATA_USER: "border-[var(--role-user-border)]",
TRUST_CENTER_OPERATOR: "border-[var(--role-trust-border)]",
EDC_USER_PARTICIPANT: "border-[var(--role-holder-border)]",
PATIENT: "border-[var(--role-patient-border)]",
};
/** Shield icon colour per primary role. */
const ROLE_SHIELD: Record<string, string> = {
EDC_ADMIN: "text-[var(--role-admin-text)]",
HDAB_AUTHORITY: "text-[var(--role-hdab-text)]",
DATA_HOLDER: "text-[var(--role-holder-text)]",
DATA_USER: "text-[var(--role-user-text)]",
TRUST_CENTER_OPERATOR: "text-[var(--role-trust-text)]",
EDC_USER_PARTICIPANT: "text-[var(--text-secondary)]",
PATIENT: "text-[var(--role-patient-text)]",
};
const IS_STATIC = process.env.NEXT_PUBLIC_STATIC_EXPORT === "true";
/**
* Returns the most meaningful roles to display.
* Hides EDC_USER_PARTICIPANT when a more specific sub-role is present.
*/
function displayRolesFor(roles: string[]): string[] {
const specific = roles.filter((r) =>
[
"EDC_ADMIN",
"HDAB_AUTHORITY",
"DATA_HOLDER",
"DATA_USER",
"TRUST_CENTER_OPERATOR",
"PATIENT",
].includes(r),
);
if (specific.length === 0 && roles.includes("EDC_USER_PARTICIPANT")) {
return ["EDC_USER_PARTICIPANT"];
}
return specific;
}
/**
* Builds the Keycloak RP-initiated logout (end-session) URL.
*
* Passing `id_token_hint` lets Keycloak end the SSO session immediately
* without showing a logout-confirmation prompt; `client_id` is the fallback
* when no id_token is available. `post_logout_redirect_uri` returns the
* browser to the app afterwards.
*/
function buildKeycloakLogoutUrl(
publicUrl: string,
clientId: string,
returnUrl: string,
idToken?: string | null,
): string {
const params = new URLSearchParams({
post_logout_redirect_uri: returnUrl,
client_id: clientId,
});
if (idToken) params.set("id_token_hint", idToken);
return `${publicUrl}/protocol/openid-connect/logout?${params.toString()}`;
}
/**
* Performs a Keycloak RP-initiated logout.
*
* IMPORTANT: the Keycloak end-session URL must NOT be passed as
* `signOut({ callbackUrl })`. NextAuth v4's default `redirect` callback
* rejects cross-origin callback URLs and falls back to the app base URL, so
* the browser never reaches Keycloak and the SSO cookie survives — causing
* the next sign-in to silently restore the previous user (issue #52).
*
* Correct flow: clear the NextAuth session with `signOut({ redirect: false })`,
* then hard-redirect the browser to Keycloak's end-session endpoint.
*/
function keycloakLogout(logoutUrl: string): void {
signOut({ redirect: false }).then(() => {
window.location.href = logoutUrl;
});
}
/**
* Switch to a different Keycloak user.
* Must sign out from BOTH NextAuth AND Keycloak itself — otherwise Keycloak's
* SSO session cookie auto-authenticates the same user on the next signIn().
*
* After logout, redirects to NextAuth's signIn with login_hint so Keycloak
* pre-fills the username field for the target user.
*/
function switchPersona(
username: string,
_personaId: string,
onClose: () => void,
keycloakConfig: { publicUrl: string; clientId: string } | null,
idToken?: string | null,
) {
onClose();
// Fall back to same-origin "/" if the runtime config hasn't loaded yet —
// never bake in localhost since this code runs in the browser against the
// production deployment.
const keycloakPublicUrl = keycloakConfig?.publicUrl;
const clientId = keycloakConfig?.clientId ?? "health-dataspace-ui";
if (!keycloakPublicUrl) {
// Config not loaded yet — fall back to plain NextAuth signOut.
signOut({ callbackUrl: "/auth/switch" });
return;
}
// Store the target username so we can pass it as login_hint after logout
sessionStorage.setItem("switch_to_user", username);
// Mark this tab as intentionally switching — clears the session snapshot
// so the new Keycloak session is accepted after redirect.
markSessionSwitch();
// Re-show the demo password warning for the new user
sessionStorage.removeItem("demo-password-banner-dismissed");
// Sign out from NextAuth first, then redirect to Keycloak's logout endpoint.
// The post_logout_redirect_uri sends the user to /auth/switch which triggers
// a new sign-in with login_hint.
const returnUrl = window.location.origin + "/auth/switch";
keycloakLogout(
buildKeycloakLogoutUrl(keycloakPublicUrl, clientId, returnUrl, idToken),
);
}
export default function UserMenu() {
// Tab-scoped session: immune to cross-tab cookie changes in live mode.
const {
session: tabSession,
status: tabStatus,
liveSession,
} = useTabSession();
// id_token from the live NextAuth session — passed to Keycloak's
// end-session endpoint as id_token_hint so logout skips the confirm prompt.
const idToken =
(liveSession as { idToken?: string } | null | undefined)?.idToken ?? null;
// Always call useDemoPersona — hook rules require unconditional calls.
const demoPersona = useDemoPersona();
const demoSession =
IS_STATIC && demoPersona
? {
user: {
// Friendly display name (e.g. "Maria Lindqvist") in the nav chip.
name: demoPersona.displayName,
email: `${demoPersona.username}@demo.ehds.eu`,
},
roles: [...demoPersona.roles],
}
: null;
// In static mode: use demo persona (null = signed out). In live mode: use tab-scoped snapshot.
const session = IS_STATIC
? demoSession
: tabSession
? {
user: { name: tabSession.username, email: tabSession.email },
roles: tabSession.roles,
}
: null;
const status = IS_STATIC
? demoPersona
? "authenticated"
: "unauthenticated"
: tabStatus;
const [open, setOpen] = useState(false);
const ref = useRef<HTMLDivElement>(null);
// Runtime Keycloak config — fetched once on mount from /api/auth/keycloak-config.
// We can't use NEXT_PUBLIC_* env vars because they're baked in at `npm run build`
// time inside the Docker image and our build doesn't pass them as build args.
const [keycloakConfig, setKeycloakConfig] = useState<{
publicUrl: string;
clientId: string;
} | null>(null);
useEffect(() => {
function handleClick(e: MouseEvent) {
if (ref.current && !ref.current.contains(e.target as Node)) {
setOpen(false);
}
}
document.addEventListener("mousedown", handleClick);
return () => document.removeEventListener("mousedown", handleClick);
}, []);
useEffect(() => {
if (IS_STATIC) return;
let cancelled = false;
fetch("/api/keycloak-config")
.then((r) => (r.ok ? r.json() : null))
.then((cfg) => {
Eif (!cancelled && cfg) setKeycloakConfig(cfg);
})
.catch(() => {
/* leave null — sign-out falls back to NextAuth-only */
});
return () => {
cancelled = true;
};
}, []);
if (status === "loading") {
return (
<div className="flex items-center gap-1.5 px-3 py-1.5 text-sm text-[var(--text-secondary)]">
<User size={15} />
<span className="animate-pulse">…</span>
</div>
);
}
if (!session) {
if (IS_STATIC) {
// Static demo: show persona picker dropdown
return (
<div ref={ref} className="relative">
<button
onClick={() => setOpen(!open)}
className="flex items-center gap-1.5 px-3 py-1.5 rounded text-sm text-[var(--text-secondary)] hover:text-[var(--text-primary)] hover:bg-[var(--surface-2)] transition-colors"
>
<LogIn size={15} />
Sign in
</button>
{open && (
<div className="absolute right-0 top-full mt-1 w-64 bg-[var(--surface-2)] border border-[var(--border)] rounded-lg shadow-xl z-50">
<div className="px-3 pt-2 pb-1 flex items-center gap-1.5">
<Users size={11} className="text-[var(--text-secondary)]" />
<span className="text-[10px] text-[var(--text-secondary)] uppercase tracking-wide font-semibold">
Choose a demo persona
</span>
</div>
<div className="px-2 pb-2 space-y-0.5">
{DEMO_PERSONAS.map((persona) => {
const pRole = [...persona.roles].find((r) =>
[
"EDC_ADMIN",
"HDAB_AUTHORITY",
"DATA_HOLDER",
"DATA_USER",
"PATIENT",
].includes(r),
);
return (
<button
key={persona.username}
onClick={() => {
setDemoPersona(persona.username);
setOpen(false);
}}
className="flex items-center gap-2 w-full px-2 py-1.5 rounded text-left hover:bg-[var(--surface-2)] cursor-pointer transition-colors"
>
<span
className={`inline-flex items-center gap-1 text-[10px] px-1.5 py-0.5 rounded font-medium shrink-0 ${
ROLE_BADGE[pRole ?? ""] ??
"bg-gray-600 text-[var(--text-primary)]"
}`}
>
<Shield size={8} />
{ROLE_LABELS[pRole ?? ""] ?? pRole}
</span>
<span className="font-mono text-xs truncate text-[var(--text-primary)]">
{persona.username}
</span>
</button>
);
})}
</div>
<BuildInfo />
</div>
)}
</div>
);
}
// Live mode: show persona picker dropdown (same as static mode but triggers Keycloak sign-in)
return (
<div ref={ref} className="relative">
<button
onClick={() => setOpen(!open)}
className="flex items-center gap-1.5 px-3 py-1.5 rounded text-sm text-[var(--text-secondary)] hover:text-[var(--text-primary)] hover:bg-[var(--surface-2)] transition-colors"
>
<LogIn size={15} />
Sign in
</button>
{open && (
<div className="absolute right-0 top-full mt-1 w-64 bg-[var(--surface-2)] border border-[var(--border)] rounded-lg shadow-xl z-50">
<div className="px-3 pt-2 pb-1 flex items-center gap-1.5">
<Users size={11} className="text-[var(--text-secondary)]" />
<span className="text-[10px] text-[var(--text-secondary)] uppercase tracking-wide font-semibold">
Returning users
</span>
</div>
<div className="px-2 pb-2 space-y-0.5">
{DEMO_PERSONAS.map((persona) => {
const pRole = [...persona.roles].find((r) =>
[
"EDC_ADMIN",
"HDAB_AUTHORITY",
"DATA_HOLDER",
"DATA_USER",
"PATIENT",
].includes(r),
);
return (
<button
key={persona.username}
onClick={() => {
setOpen(false);
signIn(
"keycloak",
{ callbackUrl: `/graph?persona=${persona.personaId}` },
{ login_hint: persona.username },
);
}}
className="flex items-center gap-2 w-full px-2 py-1.5 rounded text-left hover:bg-[var(--surface-2)] cursor-pointer transition-colors"
>
<span
className={`inline-flex items-center gap-1 text-[10px] px-1.5 py-0.5 rounded font-medium shrink-0 ${
ROLE_BADGE[pRole ?? ""] ??
"bg-gray-600 text-[var(--text-primary)]"
}`}
>
<Shield size={8} />
{ROLE_LABELS[pRole ?? ""] ?? pRole}
</span>
<span className="font-mono text-xs truncate text-[var(--text-primary)]">
{persona.username}
</span>
</button>
);
})}
</div>
<div className="p-2 border-t border-[var(--border)]">
<a
href="/auth/signin"
onClick={() => setOpen(false)}
className="flex items-center justify-center gap-1.5 w-full px-3 py-2 text-xs text-[var(--text-secondary)] hover:text-[var(--text-primary)] hover:bg-[var(--surface-2)] rounded transition-colors"
>
<ShieldCheck size={12} />
All users & details
</a>
</div>
<BuildInfo />
</div>
)}
</div>
);
}
const roles = (session as { roles?: string[] }).roles ?? [];
const username = session.user?.name ?? session.user?.email ?? "";
const shownRoles = displayRolesFor(roles);
const primaryRole = shownRoles[0] ?? "EDC_USER_PARTICIPANT";
// Derive a friendly participant type for display
const _participantType = deriveParticipantType(roles, username);
// Short role label for the nav bar chip
const navLabel = ROLE_LABELS[primaryRole] ?? username;
const accentClass = ROLE_ACCENT[primaryRole] ?? "border-gray-600";
const shieldClass =
ROLE_SHIELD[primaryRole] ?? "text-[var(--text-secondary)]";
return (
<div ref={ref} className="relative">
{/* ── Nav bar button ── */}
<button
onClick={() => setOpen(!open)}
className="flex items-center gap-1.5 px-2.5 py-1.5 rounded text-sm text-[var(--text-primary)] hover:text-[var(--text-primary)] hover:bg-[var(--surface-2)] transition-colors"
aria-label="User menu"
>
<Shield size={14} className={shieldClass} />
<span className="max-w-[140px] truncate text-xs font-medium">
{username}
{IS_STATIC && (
<span className="ml-1 text-[9px] text-amber-400">(demo)</span>
)}
</span>
{/* Role chip — hidden on very small screens */}
<span
className={`hidden sm:inline-block text-[10px] px-1.5 py-0.5 rounded font-medium ${
ROLE_BADGE[primaryRole] ?? "bg-gray-600 text-[var(--text-primary)]"
}`}
>
{navLabel}
</span>
</button>
{/* ── Dropdown panel ── */}
{open && (
<div
className={`absolute right-0 top-full mt-1 w-72 bg-[var(--surface-2)] border rounded-lg shadow-xl z-50 ${accentClass}`}
>
{/* Identity block */}
<div className="p-3 border-b border-[var(--border)]">
<p className="text-sm text-[var(--text-primary)] font-semibold truncate">
{username}
{IS_STATIC && (
<span className="ml-1.5 text-[10px] text-amber-400 font-normal">
demo mode
</span>
)}
</p>
<p className="text-xs text-[var(--text-secondary)] truncate mt-0.5">
{session.user?.email}
</p>
{/* Role badges */}
<div className="flex flex-wrap gap-1 mt-2">
{shownRoles.map((role) => (
<span
key={role}
className={`inline-flex items-center gap-1 text-xs px-2 py-0.5 rounded border font-medium ${
ROLE_BADGE[role] ?? "bg-gray-600 text-[var(--text-primary)]"
} border-transparent`}
>
<Shield size={9} />
{ROLE_LABELS[role] ?? role}
</span>
))}
</div>
</div>
{/* Settings link — hidden for PATIENT (no DCP business credentials) */}
{!roles.includes("PATIENT") && (
<div className="p-2 border-b border-[var(--border)]">
<a
href="/settings"
onClick={() => setOpen(false)}
className="flex items-center gap-2 w-full px-3 py-2 rounded text-sm text-[var(--text-primary)] hover:bg-[var(--surface-2)] transition-colors"
>
<Settings size={14} />
<span className="font-medium">Settings</span>
</a>
</div>
)}
{/* Persona switcher — Keycloak in live mode, localStorage in static demo */}
<div className="border-t border-[var(--border)]">
<div className="px-3 pt-2 pb-1 flex items-center gap-1.5">
<Users size={11} className="text-[var(--text-secondary)]" />
<span className="text-[10px] text-[var(--text-secondary)] uppercase tracking-wide font-semibold">
{IS_STATIC ? "Switch demo persona" : "Returning users"}
</span>
</div>
<div className="px-2 pb-2 space-y-0.5">
{DEMO_PERSONAS.map((persona) => {
const isActive = persona.username === username;
const primaryRole = [...persona.roles].find((r) =>
[
"EDC_ADMIN",
"HDAB_AUTHORITY",
"DATA_HOLDER",
"DATA_USER",
"PATIENT",
].includes(r),
);
return (
<button
key={persona.username}
disabled={isActive}
onClick={() => {
if (IS_STATIC) {
setDemoPersona(persona.username);
setOpen(false);
} else {
switchPersona(
persona.username,
persona.personaId,
() => setOpen(false),
keycloakConfig,
idToken,
);
}
}}
className={`flex items-center gap-2 w-full px-2 py-1.5 rounded text-left transition-colors ${
isActive
? "bg-[var(--surface-2)] cursor-default"
: "hover:bg-[var(--surface-2)] cursor-pointer"
}`}
>
<span
className={`inline-flex items-center gap-1 text-[10px] px-1.5 py-0.5 rounded font-medium shrink-0 ${
ROLE_BADGE[primaryRole ?? ""] ??
"bg-gray-600 text-[var(--text-primary)]"
}`}
>
<Shield size={8} />
{ROLE_LABELS[primaryRole ?? ""] ?? primaryRole}
</span>
<span
className={`font-mono text-xs truncate ${
isActive
? "text-[var(--accent)] font-semibold"
: "text-[var(--text-primary)]"
}`}
>
{persona.username}
</span>
{isActive && (
<span className="ml-auto text-[9px] text-[var(--text-secondary)] shrink-0">
active
</span>
)}
</button>
);
})}
</div>
</div>
{/* Sign out + build info — inline on one row to save vertical
space. Sign out stays left-aligned; BuildInfo right-aligned. */}
<div className="flex items-center justify-between gap-2 p-2 border-t border-[var(--border)]">
<button
onClick={() => {
setOpen(false);
sessionStorage.removeItem("demo-password-banner-dismissed");
// Clear the tab session snapshot so re-login gets a fresh one
markSessionSwitch();
if (IS_STATIC) {
clearDemoPersona();
// Navigate home so the signed-out patient's data leaves the
// screen (full reload → fresh, signed-out state).
const base =
process.env.NEXT_PUBLIC_STATIC_EXPORT === "true"
? "/MinimumViableHealthDataspacev2"
: "";
window.location.href = `${base}/`;
return;
}
// Sign out of Keycloak's SSO session too — not just the
// NextAuth app cookie. Passing the Keycloak end-session URL
// as signOut({ callbackUrl }) does NOT work: NextAuth drops
// cross-origin callback URLs, so the browser never reaches
// Keycloak and the SSO cookie survives — the next sign-in
// then silently restores this same user (issue #52).
if (keycloakConfig?.publicUrl) {
keycloakLogout(
buildKeycloakLogoutUrl(
keycloakConfig.publicUrl,
keycloakConfig.clientId,
window.location.origin,
idToken,
),
);
} else {
// Runtime config not loaded — fall back to NextAuth-only
// sign-out (Keycloak SSO cookie cannot be cleared here).
signOut({ callbackUrl: "/" });
}
}}
className="flex items-center gap-2 px-3 py-2 text-sm text-red-400 hover:bg-[var(--surface-2)] rounded transition-colors"
>
<LogOut size={14} />
Sign out
</button>
<BuildInfo />
</div>
</div>
)}
</div>
);
}
|