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* @fileoverview Parliamentary Questions sub-client for European Parliament API
*
* Handles retrieval and filtering of parliamentary questions
* (written, oral, interpellations, question time).
*
* @module clients/ep/questionClient
*/
import { auditLogger } from '../../utils/auditLogger.js';
import type {
ParliamentaryQuestion,
PaginatedResponse,
} from '../../types/europeanParliament.js';
import {
transformParliamentaryQuestion as _transformParliamentaryQuestion,
} from './transformers.js';
import {
BaseEPClient,
APIError,
type EPClientConfig,
type EPSharedResources,
type JSONLDResponse,
} from './baseClient.js';
// ─── Question Client ──────────────────────────────────────────────────────────
/**
* Sub-client for parliamentary-questions EP API endpoints.
*
* @extends BaseEPClient
* @public
*/
export class QuestionClient extends BaseEPClient {
constructor(config: EPClientConfig = {}, shared?: EPSharedResources) {
super(config, shared);
}
// ─── Transform helpers ────────────────────────────────────────────────────
private transformParliamentaryQuestion(
apiData: Record<string, unknown>
): ParliamentaryQuestion {
return _transformParliamentaryQuestion(apiData);
}
// ─── Private helpers ──────────────────────────────────────────────────────
/**
* Builds EP API parameters for parliamentary question search.
* @private
*/
private buildQuestionSearchParams(params: {
type?: 'WRITTEN' | 'ORAL';
dateFrom?: string;
limit?: number;
offset?: number;
}): Record<string, unknown> {
const apiParams: Record<string, unknown> = {};
Eif (params.limit !== undefined) apiParams['limit'] = params.limit;
if (params.offset !== undefined) apiParams['offset'] = params.offset;
if (params.type === 'WRITTEN') apiParams['work-type'] = 'QUESTION_WRITTEN';
else if (params.type === 'ORAL') apiParams['work-type'] = 'QUESTION_ORAL';
if (params.dateFrom !== undefined && params.dateFrom !== '') {
apiParams['year'] = params.dateFrom.substring(0, 4);
}
return apiParams;
}
/**
* Applies client-side filters to parliamentary questions.
* @private
*/
private filterQuestions(
questions: ParliamentaryQuestion[],
params: { author?: string; topic?: string; status?: 'PENDING' | 'ANSWERED'; dateTo?: string }
): ParliamentaryQuestion[] {
let filtered = questions;
if (params.author !== undefined && params.author !== '') {
const authorLower = params.author.toLowerCase();
filtered = filtered.filter((q) =>
q.author.toLowerCase().includes(authorLower)
);
}
if (params.topic !== undefined && params.topic !== '') {
const topicLower = params.topic.toLowerCase();
filtered = filtered.filter((q) =>
q.topic.toLowerCase().includes(topicLower)
);
}
if (params.status !== undefined) {
filtered = filtered.filter((q) => q.status === params.status);
}
Iif (params.dateTo !== undefined && params.dateTo !== '') {
const dateTo = params.dateTo;
filtered = filtered.filter((q) => q.date <= dateTo);
}
return filtered;
}
// ─── Public methods ───────────────────────────────────────────────────────
/**
* Retrieves parliamentary questions with filtering by type, author, and status.
*
* **EP API Endpoint:** `GET /parliamentary-questions`
*
* @param params - type, author, topic, status, dateFrom, dateTo, limit, offset
* @returns Paginated parliamentary questions list
* @security Audit logged per GDPR Article 30
*/
async getParliamentaryQuestions(params: {
type?: 'WRITTEN' | 'ORAL';
author?: string;
topic?: string;
status?: 'PENDING' | 'ANSWERED';
dateFrom?: string;
dateTo?: string;
limit?: number;
offset?: number;
}): Promise<PaginatedResponse<ParliamentaryQuestion>> {
const action = 'get_parliamentary_questions';
try {
const apiParams = this.buildQuestionSearchParams(params);
const response = await this.get<JSONLDResponse>(
'parliamentary-questions',
apiParams
);
let questions = response.data.map((item) =>
this.transformParliamentaryQuestion(item)
);
questions = this.filterQuestions(questions, params);
const result: PaginatedResponse<ParliamentaryQuestion> = {
data: questions,
total: (params.offset ?? 0) + questions.length,
limit: params.limit ?? 50,
offset: params.offset ?? 0,
hasMore: questions.length >= (params.limit ?? 50),
};
auditLogger.logDataAccess(action, params, result.data.length);
return result;
} catch (error) {
auditLogger.logError(
action,
params,
error instanceof Error ? error.message : 'Unknown error'
);
throw error;
}
}
/**
* Returns a single parliamentary question by document ID.
* **EP API Endpoint:** `GET /parliamentary-questions/{doc-id}`
*/
async getParliamentaryQuestionById(docId: string): Promise<ParliamentaryQuestion> {
if (docId.trim() === '') throw new APIError('Document ID is required', 400);
const response = await this.get<Record<string, unknown>>(
`parliamentary-questions/${docId}`,
{ format: 'application/ld+json' }
);
return this.transformParliamentaryQuestion(response);
}
}
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