# All files / src/clients europeanParliamentClient.ts

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     /**
     * @fileoverview European Parliament API Client – Facade
     *
     * Thin facade that delegates every public method to a bounded-context
     * sub-client while keeping all public method signatures identical.
     * All sub-clients share the same LRU cache and rate-limiter bucket.
     *
     * **Architecture:** Facade pattern over 8 domain sub-clients:
     * MEPClient · PlenaryClient · VotingClient · CommitteeClient ·
     * DocumentClient · LegislativeClient · QuestionClient · VocabularyClient
     *
     * **Intelligence Perspective:** Primary OSINT data collection interface—implements
     * rate-limited, cached access to all EP datasets for intelligence product generation.
     *
     * **Business Perspective:** Core API client powering all data products—reliability,
     * caching, and rate limiting directly impact SLA commitments and customer experience.
     *
     * **Marketing Perspective:** Client performance metrics (cache hit rate, response time)
     * serve as key technical differentiators in developer marketing materials.
     *
     * **ISMS Policies:**
     * - SC-002 (Secure Coding Standards)
     * - PE-001 (Performance Standards)
     * - AU-002 (Audit Logging and Monitoring)
     * - DP-001 (Data Protection and GDPR Compliance)
     *
     * @see https://github.com/Hack23/ISMS-PUBLIC/blob/main/Secure_Development_Policy.md
     * @module clients/europeanParliamentClient
     */

    import { LRUCache } from 'lru-cache';
    import { RateLimiter } from '../utils/rateLimiter.js';
    import type {
      MEP,
      MEPDetails,
      PlenarySession,
      VotingRecord,
      LegislativeDocument,
      Committee,
      ParliamentaryQuestion,
      PaginatedResponse,
      Speech,
      Procedure,
      AdoptedText,
      EPEvent,
      MeetingActivity,
      MEPDeclaration,
    } from '../types/europeanParliament.js';

    export {
      APIError,
      DEFAULT_EP_API_BASE_URL,
      DEFAULT_REQUEST_TIMEOUT_MS,
      DEFAULT_RETRY_ENABLED,
      DEFAULT_MAX_RETRIES,
      DEFAULT_RETRY_BASE_DELAY_MS,
      DEFAULT_RETRY_MAX_DELAY_MS,
      DEFAULT_CACHE_TTL_MS,
      DEFAULT_MAX_CACHE_SIZE,
      DEFAULT_RATE_LIMIT_TOKENS,
      DEFAULT_RATE_LIMIT_INTERVAL,
      DEFAULT_MAX_RESPONSE_BYTES,
    } from './ep/baseClient.js';
    export type { EPClientConfig } from './ep/baseClient.js';

    import {
      DEFAULT_EP_API_BASE_URL,
      DEFAULT_REQUEST_TIMEOUT_MS,
      DEFAULT_RETRY_ENABLED,
      DEFAULT_MAX_RETRIES,
      DEFAULT_CACHE_TTL_MS,
      DEFAULT_MAX_CACHE_SIZE,
      DEFAULT_RATE_LIMIT_TOKENS,
      DEFAULT_RATE_LIMIT_INTERVAL,
      DEFAULT_MAX_RESPONSE_BYTES,
      validateApiUrl,
      type EPClientConfig,
      type EPSharedResources,
      type JSONLDResponse,
    } from './ep/baseClient.js';
    export { validateApiUrl };

    import {
      MEPClient,
      PlenaryClient,
      VotingClient,
      CommitteeClient,
      DocumentClient,
      LegislativeClient,
      QuestionClient,
      VocabularyClient,
    } from './ep/index.js';

    /**
     * European Parliament API Client.
     *
     * Provides type-safe, high-performance access to the European Parliament Open
     * Data Portal with comprehensive caching, rate limiting, and GDPR-compliant
     * audit logging.
     *
     * **Architecture Note:** This class is a thin facade; all logic lives in the
     * bounded-context sub-clients under `src/clients/ep/`.  The facade owns the
     * shared LRU cache and rate-limiter and passes them to every sub-client so
     * they all operate within the same resource budget.
     *
     * **Performance Targets:**
     * - P50 latency: <100ms (cached responses)
     * - P95 latency: <200ms (cached responses)
     * - P99 latency: <2000ms (uncached API calls)
     *
     * **Features:**
     * - LRU caching with 15-minute TTL (500 entry max)
     * - Token bucket rate limiting (100 requests/minute)
     * - GDPR Article 30 compliant audit logging
     * - Automatic JSON-LD to internal format transformation
     * - Type-safe API with branded types
     *
     * **ISMS Policy Compliance:**
     * - SC-002: Secure coding with input validation and error handling
     * - PE-001: Performance monitoring and optimization (<200ms P95)
     * - AU-002: Comprehensive audit logging for GDPR compliance
     * - DP-001: Data protection and privacy by design
     *
     * @example
     * ```typescript
     * const client = new EuropeanParliamentClient();
     * const meps = await client.getMEPs({ country: 'SE', limit: 20 });
     * console.log(`Found ${meps.total} Swedish MEPs`);
     * ```
     *
     * @security
     * - All personal data access is audit logged per GDPR Article 30
     * - Rate limiting prevents API abuse and DoS attacks
     * - No credentials stored (EP API is public)
     * - Cache entries sanitized to prevent injection attacks
     * - TLS 1.3 enforced for all API communications
     *
     * @class
     * @public
     * @see https://data.europarl.europa.eu/api/v2/ - EP Open Data Portal API
     * @see https://github.com/Hack23/ISMS-PUBLIC/blob/main/Secure_Development_Policy.md
     * @see https://gdpr-info.eu/art-30-gdpr/ - GDPR Article 30
     */
    export class EuropeanParliamentClient {
      private readonly mepClient: MEPClient;
      private readonly plenaryClient: PlenaryClient;
      private readonly votingClient: VotingClient;
      private readonly committeeClient: CommitteeClient;
      private readonly documentClient: DocumentClient;
      private readonly legislativeClient: LegislativeClient;
      private readonly questionClient: QuestionClient;
      private readonly vocabularyClient: VocabularyClient;

      /**
       * Creates a new European Parliament API client.
       *
       * Builds shared LRU cache and rate-limiter, then wires all sub-clients
       * to use them so the whole facade operates within one resource budget.
       *
       * @param config - Optional client configuration
       */
      constructor(config: EPClientConfig = {}) {
        const shared = EuropeanParliamentClient.buildShared(config);
        this.mepClient = new MEPClient({}, shared);
        this.plenaryClient = new PlenaryClient({}, shared);
        this.votingClient = new VotingClient({}, shared);
        this.committeeClient = new CommitteeClient({}, shared);
        this.documentClient = new DocumentClient({}, shared);
        this.legislativeClient = new LegislativeClient({}, shared);
        this.questionClient = new QuestionClient({}, shared);
        this.vocabularyClient = new VocabularyClient({}, shared);
      }

      /**
       * Builds the shared resources object that is passed to all sub-clients.
       * Extracted to keep the constructor complexity within ESLint limits.
       *
       * @param config - Client configuration options
       * @returns Shared resources for all EP sub-clients
       * @private
       */
      private static buildShared(config: EPClientConfig): EPSharedResources {
        const sharedCache = new LRUCache<string, Record<string, unknown>>({
          max: config.maxCacheSize ?? DEFAULT_MAX_CACHE_SIZE,
          ttl: config.cacheTTL ?? DEFAULT_CACHE_TTL_MS,
          allowStale: false,
          updateAgeOnGet: true,
        });
        const sharedRateLimiter =
          config.rateLimiter ??
          new RateLimiter({
            tokensPerInterval: DEFAULT_RATE_LIMIT_TOKENS,
            interval: DEFAULT_RATE_LIMIT_INTERVAL,
          });
        const rawBaseURL = config.baseURL ?? DEFAULT_EP_API_BASE_URL;
        validateApiUrl(rawBaseURL, 'config.baseURL');
        const baseURL = rawBaseURL.endsWith('/') ? rawBaseURL : `${rawBaseURL}/`;
        return {
          cache: sharedCache,
          rateLimiter: sharedRateLimiter,
          baseURL,
          timeoutMs: config.timeoutMs ?? DEFAULT_REQUEST_TIMEOUT_MS,
          enableRetry: config.enableRetry ?? DEFAULT_RETRY_ENABLED,
          maxRetries: config.maxRetries ?? DEFAULT_MAX_RETRIES,
          maxResponseBytes: config.maxResponseBytes ?? DEFAULT_MAX_RESPONSE_BYTES,
          cacheCounters: { hits: 0, misses: 0 },
        };
      }

      /**
       * Clears all entries from the LRU cache.
       *
       * @example
       * ```typescript
       * client.clearCache();
       * const freshData = await client.getMEPs({ country: 'SE' });
       * ```
       * @public
       */
      clearCache(): void {
        this.mepClient.clearCache();
      }

      /**
       * Returns cache statistics for monitoring and debugging.
       *
       * All sub-clients share the same LRU cache and hit/miss counters
       * (via {@link EPSharedResources}), so delegating to any single
       * sub-client returns aggregate statistics across the entire facade.
       *
       * @returns `{ size, maxSize, hitRate, hits, misses }`
       * @public
       */
      getCacheStats(): { size: number; maxSize: number; hitRate: number; hits: number; misses: number } {
        return this.mepClient.getCacheStats();
      }

      /**
       * Retrieves Members of the European Parliament with filtering and pagination.
       *
       * @param params - country, group, committee, active, limit, offset
       * @returns Paginated MEP list
       * @security Personal data access logged per GDPR Article 30
       * @performance Cached: <100ms P50, <200ms P95. Uncached: <2s P99
       * @see https://data.europarl.europa.eu/api/v2/meps
       */
      async getMEPs(params: {
        country?: string;
        group?: string;
        committee?: string;
        active?: boolean;
        limit?: number;
        offset?: number;
      }): Promise<PaginatedResponse<MEP>> {
        return this.mepClient.getMEPs(params);
      }

      /**
       * Retrieves detailed information about a specific MEP.
       *
       * Supports numeric ID ("124936"), person URI ("person/124936"),
       * or MEP-prefixed ID ("MEP-124936").
       *
       * @param id - MEP identifier in any supported format
       * @returns Detailed MEP information
       * @security Personal data access logged per GDPR Article 30
       * @performance Cached: <100ms P50, <200ms P95. Uncached: <2s P99
       * @see https://data.europarl.europa.eu/api/v2/meps/{id}
       */
      async getMEPDetails(id: string): Promise<MEPDetails> {
        return this.mepClient.getMEPDetails(id);
      }

      /**
       * Returns all currently active MEPs for today's date.
       *
       * Unlike `getMEPs()`, this uses `GET /meps/show-current` which returns
       * `api:country-of-representation` and `api:political-group` in responses.
       * Optional `country` and `group` filters are applied client-side after fetch.
       *
       * **EP API Endpoint:** `GET /meps/show-current`
       */
      async getCurrentMEPs(params: {
        country?: string;
        group?: string;
        limit?: number;
        offset?: number;
      } = {}): Promise<PaginatedResponse<MEP>> {
        return this.mepClient.getCurrentMEPs(params);
      }

      /**
       * Returns all incoming MEPs for the current parliamentary term.
       * **EP API Endpoint:** `GET /meps/show-incoming`
       */
      async getIncomingMEPs(params: {
        limit?: number;
        offset?: number;
      } = {}): Promise<PaginatedResponse<MEP>> {
        return this.mepClient.getIncomingMEPs(params);
      }

      /**
       * Returns all outgoing MEPs for the current parliamentary term.
       * **EP API Endpoint:** `GET /meps/show-outgoing`
       */
      async getOutgoingMEPs(params: {
        limit?: number;
        offset?: number;
      } = {}): Promise<PaginatedResponse<MEP>> {
        return this.mepClient.getOutgoingMEPs(params);
      }

      /**
       * Returns homonym MEPs for the current parliamentary term.
       * **EP API Endpoint:** `GET /meps/show-homonyms`
       */
      async getHomonymMEPs(params: {
        limit?: number;
        offset?: number;
      } = {}): Promise<PaginatedResponse<MEP>> {
        return this.mepClient.getHomonymMEPs(params);
      }

      /**
       * Returns MEP declarations of financial interests.
       * **EP API Endpoint:** `GET /meps-declarations`
       * @gdpr Declarations contain personal financial data – access is audit-logged
       */
      async getMEPDeclarations(params: {
        year?: number;
        limit?: number;
        offset?: number;
      } = {}): Promise<PaginatedResponse<MEPDeclaration>> {
        return this.mepClient.getMEPDeclarations(params);
      }

      /**
       * Returns a single MEP declaration by document ID.
       * **EP API Endpoint:** `GET /meps-declarations/{doc-id}`
       * @gdpr Declarations contain personal financial data – access is audit-logged
       */
      async getMEPDeclarationById(docId: string): Promise<MEPDeclaration> {
        return this.mepClient.getMEPDeclarationById(docId);
      }

      /**
       * Retrieves recently updated MEPs via the feed endpoint.
       * **EP API Endpoint:** `GET /meps/feed`
       */
      async getMEPsFeed(params: {
        timeframe?: string;
        startDate?: string;
      } = {}): Promise<JSONLDResponse> {
        return this.mepClient.getMEPsFeed(params);
      }

      /**
       * Retrieves recently updated MEP declarations via the feed endpoint.
       * **EP API Endpoint:** `GET /meps-declarations/feed`
       */
      async getMEPDeclarationsFeed(params: {
        timeframe?: string;
        startDate?: string;
        workType?: string;
      } = {}): Promise<JSONLDResponse> {
        return this.mepClient.getMEPDeclarationsFeed(params);
      }

      /**
       * Retrieves plenary sessions with date and location filtering.
       *
       * @param params - year, dateFrom, dateTo, location, limit, offset
       * @returns Paginated plenary session list
       * @performance Cached: <100ms P50, <200ms P95. Uncached: <2s P99
       * @see https://data.europarl.europa.eu/api/v2/meetings
       */
      async getPlenarySessions(params: {
        year?: number;
        dateFrom?: string;
        dateTo?: string;
        location?: string;
        limit?: number;
        offset?: number;
      }): Promise<PaginatedResponse<PlenarySession>> {
        return this.plenaryClient.getPlenarySessions(params);
      }

      /**
       * Returns activities linked to a specific meeting (plenary sitting).
       * **EP API Endpoint:** `GET /meetings/{sitting-id}/activities`
       */
      async getMeetingActivities(
        sittingId: string,
        params: { limit?: number; offset?: number } = {}
      ): Promise<PaginatedResponse<MeetingActivity>> {
        return this.plenaryClient.getMeetingActivities(sittingId, params);
      }

      /**
       * Returns decisions made in a specific meeting (plenary sitting).
       * **EP API Endpoint:** `GET /meetings/{sitting-id}/decisions`
       */
      async getMeetingDecisions(
        sittingId: string,
        params: { limit?: number; offset?: number } = {}
      ): Promise<PaginatedResponse<LegislativeDocument>> {
        return this.plenaryClient.getMeetingDecisions(sittingId, params);
      }

      /**
       * Returns foreseen activities linked to a specific meeting.
       * **EP API Endpoint:** `GET /meetings/{sitting-id}/foreseen-activities`
       */
      async getMeetingForeseenActivities(
        sittingId: string,
        params: { limit?: number; offset?: number } = {}
      ): Promise<PaginatedResponse<MeetingActivity>> {
        return this.plenaryClient.getMeetingForeseenActivities(sittingId, params);
      }

      /**
       * Returns plenary session documents for a specific meeting.
       * **EP API Endpoint:** `GET /meetings/{sitting-id}/plenary-session-documents`
       */
      async getMeetingPlenarySessionDocuments(
        sittingId: string,
        params: { limit?: number; offset?: number } = {}
      ): Promise<PaginatedResponse<LegislativeDocument>> {
        return this.plenaryClient.getMeetingPlenarySessionDocuments(sittingId, params);
      }

      /**
       * Returns plenary session document items for a specific meeting.
       * **EP API Endpoint:** `GET /meetings/{sitting-id}/plenary-session-document-items`
       */
      async getMeetingPlenarySessionDocumentItems(
        sittingId: string,
        params: { limit?: number; offset?: number } = {}
      ): Promise<PaginatedResponse<LegislativeDocument>> {
        return this.plenaryClient.getMeetingPlenarySessionDocumentItems(sittingId, params);
      }

      /**
       * Returns a single EP meeting by ID.
       * **EP API Endpoint:** `GET /meetings/{event-id}`
       */
      async getMeetingById(eventId: string): Promise<PlenarySession> {
        return this.plenaryClient.getMeetingById(eventId);
      }

      /**
       * Returns EP events (hearings, conferences, etc.).
       * **EP API Endpoint:** `GET /events`
       *
       * **Note:** The EP API `/events` endpoint has no date filtering.
       * Only pagination (limit/offset) is supported.
       */
      async getEvents(params: {
        limit?: number;
        offset?: number;
      } = {}): Promise<PaginatedResponse<EPEvent>> {
        return this.plenaryClient.getEvents(params);
      }

      /**
       * Returns a single EP event by ID.
       * **EP API Endpoint:** `GET /events/{event-id}`
       */
      async getEventById(eventId: string): Promise<EPEvent> {
        return this.plenaryClient.getEventById(eventId);
      }

      /**
       * Retrieves recently updated events via the feed endpoint.
       * **EP API Endpoint:** `GET /events/feed`
       */
      async getEventsFeed(params: {
        timeframe?: string;
        startDate?: string;
        activityType?: string;
      } = {}): Promise<JSONLDResponse> {
        return this.plenaryClient.getEventsFeed(params);
      }

      /**
       * Retrieves voting records with filtering by session, topic, and date.
       *
       * The EP API returns only aggregate vote counts; per-MEP vote positions are
       * not available from this endpoint.
       *
       * @param params - sessionId, topic, dateFrom, dateTo, limit, offset
       * @returns Paginated voting records list
       * @security Audit logged per GDPR Article 30
       * @performance Cached: <100ms P50, <200ms P95. Uncached: <2s P99
       * @see https://data.europarl.europa.eu/api/v2/meetings/{sitting-id}/vote-results
       */
      async getVotingRecords(params: {
        sessionId?: string;
        topic?: string;
        dateFrom?: string;
        dateTo?: string;
        limit?: number;
        offset?: number;
      }): Promise<PaginatedResponse<VotingRecord>> {
        return this.votingClient.getVotingRecords(params);
      }

      /**
       * Returns plenary speeches.
       * **EP API Endpoint:** `GET /speeches`
       *
       * **Note:** The EP API `/speeches` endpoint does not support `year`.
       * Use `dateFrom`/`dateTo` (mapped to `sitting-date`/`sitting-date-end`).
       */
      async getSpeeches(params: {
        dateFrom?: string;
        dateTo?: string;
        limit?: number;
        offset?: number;
      } = {}): Promise<PaginatedResponse<Speech>> {
        return this.votingClient.getSpeeches(params);
      }

      /**
       * Returns a single speech by ID.
       * **EP API Endpoint:** `GET /speeches/{speech-id}`
       */
      async getSpeechById(speechId: string): Promise<Speech> {
        return this.votingClient.getSpeechById(speechId);
      }

      /**
       * Retrieves committee (corporate body) information by ID or abbreviation.
       *
       * @param params - id or abbreviation
       * @returns Committee information
       * @security Audit logged per GDPR Article 30
       * @performance Cached: <100ms P50, <200ms P95. Uncached: <2s P99
       * @see https://data.europarl.europa.eu/api/v2/corporate-bodies
       */
      async getCommitteeInfo(params: {
        id?: string;
        abbreviation?: string;
      }): Promise<Committee> {
        return this.committeeClient.getCommitteeInfo(params);
      }

      /**
       * Returns the list of all current EP Corporate Bodies for today's date.
       * **EP API Endpoint:** `GET /corporate-bodies/show-current`
       */
      async getCurrentCorporateBodies(params: {
        limit?: number;
        offset?: number;
      } = {}): Promise<PaginatedResponse<Committee>> {
        return this.committeeClient.getCurrentCorporateBodies(params);
      }

      /**
       * Retrieves recently updated corporate bodies via the feed endpoint.
       * **EP API Endpoint:** `GET /corporate-bodies/feed`
       * Fixed-window feed — no parameters per OpenAPI spec.
       */
      async getCorporateBodiesFeed(): Promise<JSONLDResponse> {
        return this.committeeClient.getCorporateBodiesFeed();
      }

      /**
       * Searches legislative documents by keyword, type, date, and committee.
       *
       * @param params - keyword, documentType, dateFrom, dateTo, committee, limit, offset
       * @returns Paginated legislative documents list
       * @security Audit logged per GDPR Article 30
       * @performance Cached: <100ms P50, <200ms P95. Uncached: <2s P99
       * @see https://data.europarl.europa.eu/api/v2/documents
       */
      async searchDocuments(params: {
        keyword: string;
        documentType?: string;
        dateFrom?: string;
        dateTo?: string;
        committee?: string;
        limit?: number;
        offset?: number;
      }): Promise<PaginatedResponse<LegislativeDocument>> {
        return this.documentClient.searchDocuments(params);
      }

      /**
       * Returns plenary documents.
       * **EP API Endpoint:** `GET /plenary-documents`
       */
      async getPlenaryDocuments(params: {
        year?: number;
        limit?: number;
        offset?: number;
      } = {}): Promise<PaginatedResponse<LegislativeDocument>> {
        return this.documentClient.getPlenaryDocuments(params);
      }

      /**
       * Returns committee documents.
       * **EP API Endpoint:** `GET /committee-documents`
       *
       * **Note:** The EP API `/committee-documents` endpoint does not support `year`.
       * Only pagination (limit/offset) is supported.
       */
      async getCommitteeDocuments(params: {
        limit?: number;
        offset?: number;
      } = {}): Promise<PaginatedResponse<LegislativeDocument>> {
        return this.documentClient.getCommitteeDocuments(params);
      }

      /**
       * Returns plenary session documents.
       * **EP API Endpoint:** `GET /plenary-session-documents`
       */
      async getPlenarySessionDocuments(params: {
        limit?: number;
        offset?: number;
      } = {}): Promise<PaginatedResponse<LegislativeDocument>> {
        return this.documentClient.getPlenarySessionDocuments(params);
      }

      /**
       * Returns all Plenary Session Document Items.
       * **EP API Endpoint:** `GET /plenary-session-documents-items`
       */
      async getPlenarySessionDocumentItems(params: {
        limit?: number;
        offset?: number;
      } = {}): Promise<PaginatedResponse<LegislativeDocument>> {
        return this.documentClient.getPlenarySessionDocumentItems(params);
      }

      /**
       * Returns all External Documents.
       * **EP API Endpoint:** `GET /external-documents`
       *
       * **Note:** The EP API `/external-documents` endpoint does not support `year`.
       * Only pagination (limit/offset) is supported.
       */
      async getExternalDocuments(params: {
        limit?: number;
        offset?: number;
      } = {}): Promise<PaginatedResponse<LegislativeDocument>> {
        return this.documentClient.getExternalDocuments(params);
      }

      /**
       * Returns a single document by ID.
       * **EP API Endpoint:** `GET /documents/{doc-id}`
       */
      async getDocumentById(docId: string): Promise<LegislativeDocument> {
        return this.documentClient.getDocumentById(docId);
      }

      /**
       * Returns a single plenary document by ID.
       * **EP API Endpoint:** `GET /plenary-documents/{doc-id}`
       */
      async getPlenaryDocumentById(docId: string): Promise<LegislativeDocument> {
        return this.documentClient.getPlenaryDocumentById(docId);
      }

      /**
       * Returns a single plenary session document by ID.
       * **EP API Endpoint:** `GET /plenary-session-documents/{doc-id}`
       */
      async getPlenarySessionDocumentById(docId: string): Promise<LegislativeDocument> {
        return this.documentClient.getPlenarySessionDocumentById(docId);
      }

      /**
       * Returns a single committee document by ID.
       * **EP API Endpoint:** `GET /committee-documents/{doc-id}`
       */
      async getCommitteeDocumentById(docId: string): Promise<LegislativeDocument> {
        return this.documentClient.getCommitteeDocumentById(docId);
      }

      /**
       * Returns a single external document by ID.
       * **EP API Endpoint:** `GET /external-documents/{doc-id}`
       */
      async getExternalDocumentById(docId: string): Promise<LegislativeDocument> {
        return this.documentClient.getExternalDocumentById(docId);
      }

      /**
       * Retrieves recently updated documents via the feed endpoint.
       * **EP API Endpoint:** `GET /documents/feed`
       * Fixed-window feed — no parameters per OpenAPI spec.
       */
      async getDocumentsFeed(): Promise<JSONLDResponse> {
        return this.documentClient.getDocumentsFeed();
      }

      /**
       * Retrieves recently updated plenary documents via the feed endpoint.
       * **EP API Endpoint:** `GET /plenary-documents/feed`
       * Fixed-window feed — no parameters per OpenAPI spec.
       */
      async getPlenaryDocumentsFeed(): Promise<JSONLDResponse> {
        return this.documentClient.getPlenaryDocumentsFeed();
      }

      /**
       * Retrieves recently updated committee documents via the feed endpoint.
       * **EP API Endpoint:** `GET /committee-documents/feed`
       * Fixed-window feed — no parameters per OpenAPI spec.
       */
      async getCommitteeDocumentsFeed(): Promise<JSONLDResponse> {
        return this.documentClient.getCommitteeDocumentsFeed();
      }

      /**
       * Retrieves recently updated plenary session documents via the feed endpoint.
       * **EP API Endpoint:** `GET /plenary-session-documents/feed`
       * Fixed-window feed — no parameters per OpenAPI spec.
       */
      async getPlenarySessionDocumentsFeed(): Promise<JSONLDResponse> {
        return this.documentClient.getPlenarySessionDocumentsFeed();
      }

      /**
       * Retrieves recently updated external documents via the feed endpoint.
       * **EP API Endpoint:** `GET /external-documents/feed`
       */
      async getExternalDocumentsFeed(params: {
        timeframe?: string;
        startDate?: string;
        workType?: string;
      } = {}): Promise<JSONLDResponse> {
        return this.documentClient.getExternalDocumentsFeed(params);
      }

      /**
       * Returns legislative procedures.
       * **EP API Endpoint:** `GET /procedures`
       *
       * **Note:** The EP API `/procedures` endpoint does not support `year`.
       * Only pagination (limit/offset) is supported.
       */
      async getProcedures(params: {
        limit?: number;
        offset?: number;
      } = {}): Promise<PaginatedResponse<Procedure>> {
        return this.legislativeClient.getProcedures(params);
      }

      /**
       * Returns a single procedure by ID.
       * **EP API Endpoint:** `GET /procedures/{process-id}`
       * @throws {APIError} When the procedure is not found (404)
       */
      async getProcedureById(processId: string): Promise<Procedure> {
        return this.legislativeClient.getProcedureById(processId);
      }

      /**
       * Returns events linked to a procedure.
       * **EP API Endpoint:** `GET /procedures/{process-id}/events`
       */
      async getProcedureEvents(
        processId: string,
        params: { limit?: number; offset?: number } = {}
      ): Promise<PaginatedResponse<EPEvent>> {
        return this.legislativeClient.getProcedureEvents(processId, params);
      }

      /**
       * Returns adopted texts.
       * **EP API Endpoint:** `GET /adopted-texts`
       */
      async getAdoptedTexts(params: {
        year?: number;
        limit?: number;
        offset?: number;
      } = {}): Promise<PaginatedResponse<AdoptedText>> {
        return this.legislativeClient.getAdoptedTexts(params);
      }

      /**
       * Returns a single adopted text by document ID.
       * **EP API Endpoint:** `GET /adopted-texts/{doc-id}`
       */
      async getAdoptedTextById(docId: string): Promise<AdoptedText> {
        return this.legislativeClient.getAdoptedTextById(docId);
      }

      /**
       * Retrieves recently updated procedures via the feed endpoint.
       * **EP API Endpoint:** `GET /procedures/feed`
       */
      async getProceduresFeed(params: {
        timeframe?: string;
        startDate?: string;
        processType?: string;
      } = {}): Promise<JSONLDResponse> {
        return this.legislativeClient.getProceduresFeed(params);
      }

      /**
       * Retrieves recently updated adopted texts via the feed endpoint.
       * **EP API Endpoint:** `GET /adopted-texts/feed`
       */
      async getAdoptedTextsFeed(params: {
        timeframe?: string;
        startDate?: string;
        workType?: string;
      } = {}): Promise<JSONLDResponse> {
        return this.legislativeClient.getAdoptedTextsFeed(params);
      }

      /**
       * Returns a single event within a procedure by event ID.
       * **EP API Endpoint:** `GET /procedures/{process-id}/events/{event-id}`
       *
       * @param processId - Procedure process ID
       * @param eventId - Event identifier within the procedure
       */
      async getProcedureEventById(processId: string, eventId: string): Promise<EPEvent> {
        return this.legislativeClient.getProcedureEventById(processId, eventId);
      }

      /**
       * Retrieves parliamentary questions with filtering by type, author, and status.
       *
       * @param params - type, author, topic, status, dateFrom, dateTo, limit, offset
       * @returns Paginated parliamentary questions list
       * @security Audit logged per GDPR Article 30
       * @performance Cached: <100ms P50, <200ms P95. Uncached: <2s P99
       * @see https://data.europarl.europa.eu/api/v2/parliamentary-questions
       */
      async getParliamentaryQuestions(params: {
        type?: 'WRITTEN' | 'ORAL';
        author?: string;
        topic?: string;
        status?: 'PENDING' | 'ANSWERED';
        dateFrom?: string;
        dateTo?: string;
        limit?: number;
        offset?: number;
      }): Promise<PaginatedResponse<ParliamentaryQuestion>> {
        return this.questionClient.getParliamentaryQuestions(params);
      }

      /**
       * Returns a single parliamentary question by document ID.
       * **EP API Endpoint:** `GET /parliamentary-questions/{doc-id}`
       */
      async getParliamentaryQuestionById(
        docId: string
      ): Promise<ParliamentaryQuestion> {
        return this.questionClient.getParliamentaryQuestionById(docId);
      }

      /**
       * Retrieves recently updated parliamentary questions via the feed endpoint.
       * **EP API Endpoint:** `GET /parliamentary-questions/feed`
       * Fixed-window feed — no parameters per OpenAPI spec.
       */
      async getParliamentaryQuestionsFeed(): Promise<JSONLDResponse> {
        return this.questionClient.getParliamentaryQuestionsFeed();
      }

      /**
       * Returns EP controlled vocabularies.
       * **EP API Endpoint:** `GET /controlled-vocabularies`
       */
      async getControlledVocabularies(params: {
        limit?: number;
        offset?: number;
      } = {}): Promise<PaginatedResponse<Record<string, unknown>>> {
        return this.vocabularyClient.getControlledVocabularies(params);
      }

      /**
       * Returns a single EP Controlled Vocabulary by ID.
       * **EP API Endpoint:** `GET /controlled-vocabularies/{voc-id}`
       */
      async getControlledVocabularyById(
        vocId: string
      ): Promise<Record<string, unknown>> {
        return this.vocabularyClient.getControlledVocabularyById(vocId);
      }

      /**
       * Retrieves recently updated controlled vocabularies via the feed endpoint.
       * **EP API Endpoint:** `GET /controlled-vocabularies/feed`
       * Fixed-window feed — no parameters per OpenAPI spec.
       */
      async getControlledVocabulariesFeed(): Promise<JSONLDResponse> {
        return this.vocabularyClient.getControlledVocabulariesFeed();
      }
    }

    /**
     * Singleton instance of European Parliament API client for global use.
     *
     * Pre-configured with defaults (15 min cache, 100 req/min rate limit).
     * Recommended for most use cases to share cache and rate limiter across
     * the application.
     *
     * **Environment Variables:**
     * - `EP_API_URL`: Override base API URL
     * - `EP_REQUEST_TIMEOUT_MS`: Override request timeout in milliseconds (default: `DEFAULT_REQUEST_TIMEOUT_MS`)
     *
     * @example
     * ```typescript
     * import { epClient } from './clients/europeanParliamentClient.js';
     * const meps = await epClient.getMEPs({ country: 'SE' });
     * ```
     *
     * @public
     * @see {@link EuropeanParliamentClient}
     */
    export const epClient = new EuropeanParliamentClient({
      baseURL: ((): string => {
        const raw = process.env['EP_API_URL'];
        Iif (typeof raw === 'string') {
          const trimmed = raw.trim();
          if (trimmed.length > 0) {
            const withSlash = trimmed.endsWith('/') ? trimmed : `${trimmed}/`;
            return validateApiUrl(withSlash);
          }
        }
        return DEFAULT_EP_API_BASE_URL;
      })(),
      timeoutMs: ((): number => {
        const raw = process.env['EP_REQUEST_TIMEOUT_MS'];
        Iif (typeof raw === 'string' && raw.trim().length > 0) {
          const parsed = Number.parseInt(raw, 10);
          if (Number.isFinite(parsed) && parsed > 0) return parsed;
        }
        return DEFAULT_REQUEST_TIMEOUT_MS;
      })(),
    });