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import { fetchApi } from "@/lib/api";
import { useEffect, useState } from "react";
import PageIntro from "@/components/PageIntro";
import {
ChevronDown,
ChevronUp,
Loader2,
ShieldCheck,
FileKey2,
Send,
Trash2,
} from "lucide-react";
interface VC {
id: string;
type: string;
issuer: string;
subject: string;
issuanceDate: string;
expirationDate?: string;
status: string;
claims: Record<string, string>;
}
interface ParticipantCtx {
"@id": string;
identity: string;
state: string;
}
interface CredentialDef {
id: string;
credentialType: string;
format: string;
attestations: string[];
validity: number;
}
export default function CredentialsPage() {
const [credentials, setCredentials] = useState<VC[]>([]);
const [participants, setParticipants] = useState<ParticipantCtx[]>([]);
const [credentialDefs, setCredentialDefs] = useState<CredentialDef[]>([]);
const [loading, setLoading] = useState(true);
const [expanded, setExpanded] = useState<string | null>(null);
const [requesting, setRequesting] = useState(false);
const [requestResult, setRequestResult] = useState<string | null>(null);
const [removingId, setRemovingId] = useState<string | null>(null);
// Request form
const [reqParticipant, setReqParticipant] = useState("");
const [reqType, setReqType] = useState("");
useEffect(() => {
Promise.all([
fetchApi("/api/credentials").then((r) =>
r.ok ? r.json() : { credentials: [] },
),
fetchApi("/api/participants").then((r) => (r.ok ? r.json() : [])),
fetchApi("/api/credentials/definitions").then((r) =>
r.ok ? r.json() : { definitions: [] },
),
])
.then(([creds, ctx, defs]) => {
// API returns { credentials: [...] } with Neo4j field names — map to UI shape
const raw: any[] = Array.isArray(creds)
? creds
: creds.credentials || [];
setCredentials(
raw.map((c: any) => ({
id: c.credentialId ?? c.id ?? "",
type: c.credentialType ?? c.type ?? "",
issuer: c.issuerDid ?? c.issuer ?? "",
subject: c.subjectDid ?? c.subject ?? "",
issuanceDate: c.issuedAt ?? c.issuanceDate ?? "",
expirationDate: c.expiresAt ?? c.expirationDate,
status: (c.status ?? "unknown").replace(/^\w/, (ch: string) =>
ch.toUpperCase(),
),
claims: {
...(c.holderName ? { holder: c.holderName } : {}),
...(c.holderType ? { type: c.holderType } : {}),
...(c.participantRole ? { role: c.participantRole } : {}),
...(c.membership ? { membership: c.membership } : {}),
...(c.membershipType ? { membershipType: c.membershipType } : {}),
...(c.jurisdiction ? { jurisdiction: c.jurisdiction } : {}),
...(c.ehdsArticle ? { ehdsArticle: c.ehdsArticle } : {}),
...(c.purpose ? { purpose: c.purpose } : {}),
...(c.datasetId ? { dataset: c.datasetId } : {}),
...(c.completeness != null
? { completeness: String(c.completeness) }
: {}),
...(c.conformance != null
? { conformance: String(c.conformance) }
: {}),
...(c.timeliness != null
? { timeliness: String(c.timeliness) }
: {}),
},
})),
);
// API returns flat array [...] — handle both array and { participants: [...] }
const list: ParticipantCtx[] = Array.isArray(ctx)
? ctx
: ctx.participants || [];
setParticipants(list);
if (list.length > 0) setReqParticipant(list[0]["@id"]);
// Load credential definitions from IssuerService
const defList: CredentialDef[] = Array.isArray(defs)
? defs
: defs.definitions || [];
setCredentialDefs(defList);
if (defList.length > 0) setReqType(defList[0].credentialType);
setLoading(false);
})
.catch(() => setLoading(false));
}, []);
const handleRequest = async () => {
Iif (!reqParticipant) return;
setRequesting(true);
setRequestResult(null);
try {
const res = await fetchApi("/api/credentials/request", {
method: "POST",
headers: { "Content-Type": "application/json" },
body: JSON.stringify({
participantContextId: reqParticipant,
credentialType: reqType,
}),
});
if (res.ok) {
setRequestResult("Credential request submitted successfully");
// Refresh credentials list
const updated = await fetchApi("/api/credentials");
const data = await updated.json();
const raw: any[] = Array.isArray(data) ? data : data.credentials || [];
setCredentials(
raw.map((c: any) => ({
id: c.credentialId ?? c.id ?? "",
type: c.credentialType ?? c.type ?? "",
issuer: c.issuerDid ?? c.issuer ?? "",
subject: c.subjectDid ?? c.subject ?? "",
issuanceDate: c.issuedAt ?? c.issuanceDate ?? "",
expirationDate: c.expiresAt ?? c.expirationDate,
status: (c.status ?? "unknown").replace(/^\w/, (ch: string) =>
ch.toUpperCase(),
),
claims: {
...(c.holderName ? { holder: c.holderName } : {}),
...(c.holderType ? { type: c.holderType } : {}),
...(c.participantRole ? { role: c.participantRole } : {}),
...(c.membership ? { membership: c.membership } : {}),
...(c.membershipType ? { membershipType: c.membershipType } : {}),
...(c.jurisdiction ? { jurisdiction: c.jurisdiction } : {}),
...(c.ehdsArticle ? { ehdsArticle: c.ehdsArticle } : {}),
...(c.purpose ? { purpose: c.purpose } : {}),
...(c.datasetId ? { dataset: c.datasetId } : {}),
...(c.completeness != null
? { completeness: String(c.completeness) }
: {}),
...(c.conformance != null
? { conformance: String(c.conformance) }
: {}),
...(c.timeliness != null
? { timeliness: String(c.timeliness) }
: {}),
},
})),
);
} else {
const err = await res.json();
setRequestResult(`Error: ${err.error || "Request failed"}`);
}
} catch {
setRequestResult("Error: Failed to submit request");
} finally {
setRequesting(false);
}
};
const handleRemove = async (credentialId: string) => {
if (!confirm("Remove this credential? This cannot be undone.")) return;
setRemovingId(credentialId);
try {
const res = await fetchApi(
`/api/credentials/${encodeURIComponent(credentialId)}`,
{ method: "DELETE" },
);
if (res.ok) {
setCredentials((prev) => prev.filter((c) => c.id !== credentialId));
Eif (expanded === credentialId) setExpanded(null);
} else {
const err = await res.json();
alert(err.error || "Failed to remove credential");
}
} catch {
alert("Failed to remove credential");
} finally {
setRemovingId(null);
}
};
return (
<div className="min-h-screen bg-[var(--bg)]">
<div className="max-w-5xl mx-auto px-6 py-10">
<PageIntro
title="Verifiable Credentials"
icon={FileKey2}
description="Request and manage EHDS participant credentials issued via the IssuerService and stored in the IdentityHub. Verifiable Credentials prove identity, compliance status, and data-access authorisation within the dataspace."
prevStep={{ href: "/compliance/tck", label: "Protocol TCK" }}
nextStep={{ href: "/data/share", label: "Share Data" }}
infoText="VCs follow the W3C Verifiable Credentials standard. They are cryptographically signed by the IssuerService and can be verified by any participant using the holder's DID:web identity."
docLink={{ href: "/docs/architecture", label: "Architecture Docs" }}
/>
{/* Request new credential */}
<div className="border border-[var(--border)] rounded-xl p-5 mb-8">
<div className="flex items-center gap-2 mb-2">
<Send size={18} className="text-teal-800 dark:text-teal-300" />
<h2 className="font-semibold text-sm">Request Credential</h2>
</div>
<p className="text-xs text-[var(--text-secondary)] mb-4">
Request a Verifiable Credential (VC) from the IssuerService for a
participant. VCs prove identity, compliance, and data-access
authorization in the EHDS dataspace. They are stored in the
participant's IdentityHub and presented during
connector-to-connector negotiations.
</p>
<div className="grid sm:grid-cols-3 gap-3 items-end">
<div>
<label className="text-xs text-[var(--text-secondary)] mb-1 block">
Participant Context
</label>
<select
aria-label="Participant Context"
value={reqParticipant}
onChange={(e) => setReqParticipant(e.target.value)}
className="w-full px-3 py-2 bg-[var(--surface-2)] border border-[var(--border-ui)] rounded text-sm"
>
{participants.map((p) => (
<option key={p["@id"]} value={p["@id"]}>
{p.identity?.replace("did:web:", "").replace(/%3A/g, ":") ||
p["@id"].slice(0, 16)}
</option>
))}
</select>
</div>
<div>
<label className="text-xs text-[var(--text-secondary)] mb-1 block">
Credential Type
</label>
<select
aria-label="Credential Type"
value={reqType}
onChange={(e) => setReqType(e.target.value)}
className="w-full px-3 py-2 bg-[var(--surface-2)] border border-[var(--border-ui)] rounded text-sm"
>
{credentialDefs.length > 0 ? (
credentialDefs.map((d) => (
<option key={d.id} value={d.credentialType}>
{d.credentialType.replace(/([A-Z])/g, " $1").trim()}
</option>
))
) : (
<>
<option value="EHDSParticipantCredential">
EHDS Participant Credential
</option>
<option value="DataProcessingPurposeCredential">
Data Processing Purpose Credential
</option>
<option value="DataQualityLabelCredential">
Data Quality Label Credential
</option>
</>
)}
</select>
</div>
<button
onClick={handleRequest}
disabled={requesting || !reqParticipant}
className="flex items-center justify-center gap-2 px-4 py-2 bg-[var(--accent)] text-white dark:text-gray-900 rounded text-sm font-medium hover:bg-[var(--accent-hover)] disabled:opacity-50"
>
{requesting ? (
<Loader2 size={14} className="animate-spin" />
) : (
<FileKey2 size={14} />
)}
Request
</button>
</div>
{requestResult && (
<p
className={`mt-3 text-xs ${
requestResult.startsWith("Error")
? "text-[var(--role-admin-text)]"
: "text-[var(--role-user-text)]"
}`}
>
{requestResult}
</p>
)}
</div>
{/* Credential list */}
{loading ? (
<div className="flex items-center gap-2 text-[var(--text-secondary)]">
<Loader2 size={16} className="animate-spin" />
Loading credentials…
</div>
) : credentials.length === 0 ? (
<div className="text-center py-12">
<ShieldCheck
size={40}
className="text-[var(--text-secondary)] mx-auto mb-4"
/>
<p className="text-[var(--text-secondary)]">
No credentials found in Neo4j
</p>
<p className="text-[var(--text-secondary)] text-xs mt-1">
Register a participant and request credentials above
</p>
</div>
) : (
<div className="grid gap-3">
{credentials.map((vc) => {
const isOpen = expanded === vc.id;
return (
<div
key={vc.id}
className={`border rounded-xl transition-colors ${
isOpen
? "border-layer2 bg-[var(--surface)]/60"
: "border-[var(--border)] hover:border-layer2"
}`}
>
<button
className="w-full text-left p-4"
aria-label={`${isOpen ? "Collapse" : "Expand"} ${vc.type}`}
onClick={() => setExpanded(isOpen ? null : vc.id)}
>
<div className="flex items-center justify-between">
<div className="flex items-center gap-3">
<ShieldCheck
size={18}
className={
vc.status === "Active"
? "text-[var(--role-user-text)]"
: "text-[var(--text-secondary)]"
}
/>
<div>
<p className="font-medium text-sm text-[var(--text-primary)]">
{vc.type}
</p>
<p className="text-xs text-[var(--text-secondary)]">
{vc.subject?.slice(0, 40)}… · Issued:{" "}
{vc.issuanceDate?.split("T")[0]}
</p>
</div>
</div>
<div className="flex items-center gap-2">
<span
className={`text-xs px-2 py-0.5 rounded-full ${
vc.status === "Active"
? "bg-[var(--role-user-bg)] text-[var(--role-user-text)] border border-[var(--role-user-border)]"
: "bg-[var(--surface-2)] text-[var(--text-secondary)]"
}`}
>
{vc.status}
</span>
{isOpen ? (
<ChevronUp
size={16}
className="text-[var(--text-secondary)]"
/>
) : (
<ChevronDown
size={16}
className="text-[var(--text-secondary)]"
/>
)}
</div>
</div>
</button>
{isOpen && (
<div className="px-4 pb-4 space-y-1.5 border-t border-[var(--border)] pt-3">
<div className="flex gap-3 text-xs">
<span className="text-[var(--text-secondary)] w-28">
ID
</span>
<span className="text-[var(--text-primary)] font-mono break-all">
{vc.id}
</span>
</div>
<div className="flex gap-3 text-xs">
<span className="text-[var(--text-secondary)] w-28">
Issuer
</span>
<span className="text-[var(--text-primary)] font-mono break-all">
{vc.issuer}
</span>
</div>
<div className="flex gap-3 text-xs">
<span className="text-[var(--text-secondary)] w-28">
Subject
</span>
<span className="text-[var(--text-primary)] font-mono break-all">
{vc.subject}
</span>
</div>
{vc.expirationDate && (
<div className="flex gap-3 text-xs">
<span className="text-[var(--text-secondary)] w-28">
Expires
</span>
<span className="text-[var(--text-primary)]">
{vc.expirationDate}
</span>
</div>
)}
{vc.claims &&
Object.entries(vc.claims).map(([k, v]) => (
<div key={k} className="flex gap-3 text-xs">
<span className="text-[var(--text-secondary)] w-28">
{k}
</span>
<span className="text-[var(--text-primary)]">
{String(v)}
</span>
</div>
))}
<div className="pt-3 mt-2 border-t border-[var(--border)] flex justify-end">
<button
onClick={(e) => {
e.stopPropagation();
handleRemove(vc.id);
}}
disabled={removingId === vc.id}
className="flex items-center gap-1.5 px-3 py-1.5 text-xs text-[var(--role-admin-text)] border border-[var(--role-admin-border)] rounded hover:bg-[var(--role-admin-bg)] disabled:opacity-50 transition-colors"
>
{removingId === vc.id ? (
<Loader2 size={12} className="animate-spin" />
) : (
<Trash2 size={12} />
)}
Remove
</button>
</div>
</div>
)}
</div>
);
})}
</div>
)}
</div>
</div>
);
}
|