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const IS_STATIC = process.env.NEXT_PUBLIC_STATIC_EXPORT === "true";
/* ── Types ─────────────────────────────────────────────────────── */
export interface OdrlScope {
participantId: string;
participantName: string;
permissions: string[];
prohibitions: string[];
accessibleDatasets: string[];
temporalLimit: string | null;
policyIds: string[];
hasActiveContract: boolean;
hdabApproved: boolean;
}
/* ── Participant mapping ───────────────────────────────────────── */
const USERNAME_TO_DID: Record<string, string> = {
"admin@edc.demo": "did:web:alpha-klinik.de:participant",
"dr.schmidt@alphaklinik.de": "did:web:alpha-klinik.de:participant",
"nurse.weber@alphaklinik.de": "did:web:alpha-klinik.de:participant",
"researcher@pharmaco.de": "did:web:pharmaco.de:research",
"hdab.officer@medreg.de": "did:web:medreg.de:hdab",
"dr.janssen@lmc.nl": "did:web:lmc.nl:clinic",
"patient.mueller@demo.ehds": "did:web:alpha-klinik.de:participant",
"tc.operator@medreg.de": "did:web:medreg.de:hdab",
};
/**
* Map a session username + roles to the corresponding participant DID.
* Falls back to a generic participant DID if no mapping exists.
*/
export function userToParticipantId(
username: string,
_roles: string[],
): string {
return USERNAME_TO_DID[username] ?? `did:web:unknown:${username}`;
}
/* ── Static fallback ───────────────────────────────────────────── */
const STATIC_SCOPE: OdrlScope = {
participantId: "did:web:pharmaco.de:research",
participantName: "PharmaCo Research AG",
permissions: [
"scientific_research",
"statistics",
"policy_support",
"education",
"ai_training",
],
prohibitions: [
"re_identification",
"commercial_exploitation_without_approval",
],
accessibleDatasets: [
"dataset-synthea-fhir-r4-2026",
"dataset-synthea-omop-2026",
],
temporalLimit: "2027-12-31T23:59:59",
policyIds: ["policy-ehds-art53-synthetic-2026"],
hasActiveContract: true,
hdabApproved: true,
};
/* ── Core resolver ─────────────────────────────────────────────── */
/**
* Resolve the effective ODRL scope for a participant.
*
* Walks the Neo4j graph:
* Participant → Contract → DataProduct → GOVERNED_BY → OdrlPolicy
* HDABApproval → GRANTS_ACCESS_TO → HealthDataset
*
* Returns the union of all permissions, prohibitions, and accessible
* datasets for the caller's active contracts.
*/
export async function resolveOdrlScope(
participantId: string,
): Promise<OdrlScope> {
Iif (IS_STATIC) {
return STATIC_SCOPE;
}
try {
// Query the ODRL policy chain for this participant
const rows = await runQuery<{
participantName: string;
policyId: string;
permissions: string[];
prohibitions: string[];
temporalLimit: string | null;
datasetId: string | null;
contractStatus: string | null;
approvalStatus: string | null;
}>(
`MATCH (p:Participant)
WHERE p.participantId = $participantId
OR p.did = $participantId
OPTIONAL MATCH (p)-[:OFFERS|CONSUMES]->(:DataProduct)-[:GOVERNED_BY]->(pol:OdrlPolicy)
OPTIONAL MATCH (p)-[:HAS_CONTRACT]->(c:Contract)-[:COVERS|GOVERNS]->(:DataProduct)-[:DESCRIBED_BY]->(ds:HealthDataset)
OPTIONAL MATCH (approval:HDABApproval)-[:GRANTS_ACCESS_TO]->(ds)
RETURN p.name AS participantName,
pol.policyId AS policyId,
coalesce(pol.ehdsPermissions, []) AS permissions,
coalesce(pol.ehdsProhibitions, []) AS prohibitions,
toString(pol.temporalLimit) AS temporalLimit,
coalesce(ds.datasetId, ds.id) AS datasetId,
c.status AS contractStatus,
approval.status AS approvalStatus`,
{ participantId },
);
if (rows.length === 0) {
return {
participantId,
participantName: participantId,
permissions: [],
prohibitions: [],
accessibleDatasets: [],
temporalLimit: null,
policyIds: [],
hasActiveContract: false,
hdabApproved: false,
};
}
// Aggregate across all matching rows
const permissionSet = new Set<string>();
const prohibitionSet = new Set<string>();
const datasetSet = new Set<string>();
const policySet = new Set<string>();
let temporalLimit: string | null = null;
let hasActiveContract = false;
let hdabApproved = false;
let participantName = participantId;
for (const row of rows) {
Eif (row.participantName) participantName = row.participantName;
if (row.policyId) policySet.add(row.policyId);
for (const p of row.permissions) permissionSet.add(p);
for (const p of row.prohibitions) prohibitionSet.add(p);
if (row.datasetId) datasetSet.add(row.datasetId);
if (row.temporalLimit) temporalLimit = row.temporalLimit;
if (row.contractStatus === "ACTIVE") hasActiveContract = true;
if (row.approvalStatus === "approved") hdabApproved = true;
}
return {
participantId,
participantName,
permissions: [...permissionSet],
prohibitions: [...prohibitionSet],
accessibleDatasets: [...datasetSet],
temporalLimit,
policyIds: [...policySet],
hasActiveContract,
hdabApproved,
};
} catch (err) {
console.error("resolveOdrlScope error:", err);
return {
participantId,
participantName: participantId,
permissions: [],
prohibitions: [],
accessibleDatasets: [],
temporalLimit: null,
policyIds: [],
hasActiveContract: false,
hdabApproved: false,
};
}
}
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