All files / generators/strategies weekly-review-strategy.ts

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// SPDX-FileCopyrightText: 2024-2026 Hack23 AB
// SPDX-License-Identifier: Apache-2.0
 
/**
 * @module Generators/Strategies/WeeklyReviewStrategy
 * @description Article strategy for the Week In Review article type.
 * Fetches voting records, voting patterns, voting anomalies, and parliamentary
 * questions from the past 7 days, then renders a retrospective analysis article.
 */
 
import type { EuropeanParliamentMCPClient } from '../../mcp/ep-mcp-client.js';
import { ArticleCategory } from '../../types/index.js';
import type {
  LanguageCode,
  DateRange,
  VotingRecord,
  VotingPattern,
  VotingAnomaly,
  MotionsQuestion,
  EPFeedData,
} from '../../types/index.js';
import { WEEKLY_REVIEW_TITLES, getLocalizedString } from '../../constants/languages.js';
import {
  fetchVotingRecords,
  fetchVotingPatterns,
  fetchMotionsAnomalies,
  fetchParliamentaryQuestionsForMotions,
  fetchEPFeedData,
} from '../pipeline/fetch-stage.js';
import { generateMotionsContent, buildAdoptedTextsSection } from '../motions-content.js';
import { buildDeepAnalysisSection } from '../deep-analysis-content.js';
import {
  buildVotingAnalysis,
  buildVotingSwot,
  buildVotingDashboard,
} from '../analysis-builders.js';
import { buildSwotSection } from '../swot-content.js';
import { buildDashboardSection } from '../dashboard-content.js';
import type { ArticleStrategy, ArticleData, ArticleMetadata } from './article-strategy.js';
 
// ─── Data payload ─────────────────────────────────────────────────────────────
 
/** Data fetched and pre-processed by {@link WeeklyReviewStrategy} */
export interface WeeklyReviewArticleData extends ArticleData {
  /** Review period date range */
  readonly dateRange: DateRange;
  /** Voting records from the review period */
  readonly votingRecords: readonly VotingRecord[];
  /** Voting patterns analysis */
  readonly votingPatterns: readonly VotingPattern[];
  /** Detected voting anomalies */
  readonly anomalies: readonly VotingAnomaly[];
  /** Parliamentary questions from the period */
  readonly questions: readonly MotionsQuestion[];
  /** Start date string for display */
  readonly dateFromStr: string;
  /** EP feed data for enrichment (when available) */
  readonly feedData?: EPFeedData | undefined;
}
 
/** Keywords shared by all Weekly Review articles */
const WEEKLY_REVIEW_KEYWORDS = [
  'European Parliament',
  'weekly review',
  'voting records',
  'parliamentary activity',
] as const;
 
// ─── Date-range helper ────────────────────────────────────────────────────────
 
/**
 * Compute the review period covering the 7 days ending on `baseDate`.
 *
 * @param baseDate - ISO 8601 publication date (YYYY-MM-DD)
 * @returns Date range covering the past 7 days
 */
function computeWeeklyReviewDateRange(baseDate: string): DateRange {
  const end = new Date(`${baseDate}T00:00:00Z`);
  const start = new Date(end);
  start.setUTCDate(end.getUTCDate() - 7);
 
  const startParts = start.toISOString().split('T');
  const endParts = end.toISOString().split('T');
 
  Iif (!startParts[0] || !endParts[0]) {
    throw new Error('Invalid date format generated in computeWeeklyReviewDateRange');
  }
 
  return {
    start: startParts[0],
    end: endParts[0],
  };
}
 
// ─── Strategy implementation ──────────────────────────────────────────────────
 
/**
 * Article strategy for {@link ArticleCategory.WEEK_IN_REVIEW}.
 * Fetches voting records, anomalies, patterns, and questions for the
 * past 7 days and builds a retrospective analysis article.
 */
export class WeeklyReviewStrategy implements ArticleStrategy<WeeklyReviewArticleData> {
  readonly type = ArticleCategory.WEEK_IN_REVIEW;
 
  readonly requiredMCPTools = [
    'get_voting_records',
    'analyze_voting_patterns',
    'detect_voting_anomalies',
    'get_parliamentary_questions',
    'get_adopted_texts_feed',
    'get_procedures_feed',
    'get_events_feed',
  ] as const;
 
  /**
   * Fetch weekly review data from MCP.
   *
   * @param client - MCP client or null
   * @param date - ISO 8601 publication date
   * @returns Populated weekly review data payload
   */
  async fetchData(
    client: EuropeanParliamentMCPClient | null,
    date: string
  ): Promise<WeeklyReviewArticleData> {
    const dateRange = computeWeeklyReviewDateRange(date);
    console.log(`  📊 Weekly review range: ${dateRange.start} to ${dateRange.end}`);
 
    // Fetch voting data and EP feed data in parallel
    const [votingRecords, votingPatterns, anomalies, questions, feedData] = await Promise.all([
      fetchVotingRecords(client, dateRange.start, dateRange.end),
      fetchVotingPatterns(client, dateRange.start, dateRange.end),
      fetchMotionsAnomalies(client, dateRange.start, dateRange.end),
      fetchParliamentaryQuestionsForMotions(client, dateRange.start, dateRange.end),
      fetchEPFeedData(client, 'one-week', dateRange),
    ]);
 
    return {
      date,
      dateRange,
      dateFromStr: dateRange.start,
      votingRecords,
      votingPatterns,
      anomalies,
      questions,
      feedData,
    };
  }
 
  /**
   * Build the weekly review HTML body for the specified language.
   *
   * @param data - Weekly review data payload
   * @param lang - Target language code used for editorial strings
   * @returns Article HTML body
   */
  buildContent(data: WeeklyReviewArticleData, lang: LanguageCode): string {
    const base = generateMotionsContent(
      data.dateRange.start,
      data.dateRange.end,
      [...data.votingRecords],
      [...data.votingPatterns],
      [...data.anomalies],
      [...data.questions],
      lang
    );
    const analysis = buildVotingAnalysis(
      data.dateRange.start,
      data.dateRange.end,
      data.votingRecords,
      data.votingPatterns,
      data.anomalies,
      data.questions
    );
    const deepSection = buildDeepAnalysisSection(analysis, lang, 'en');
 
    // Enrich with adopted texts from feed data when available
    const adoptedTextsHtml =
      data.feedData && data.feedData.adoptedTexts.length > 0
        ? buildAdoptedTextsSection(data.feedData.adoptedTexts, lang)
        : '';
 
    const swotData = buildVotingSwot(data.votingRecords, data.votingPatterns, data.anomalies, lang);
    const swotSection = buildSwotSection(swotData, lang);
    const dashboardData = buildVotingDashboard(
      data.votingRecords,
      data.votingPatterns,
      data.anomalies,
      lang
    );
    const dashboardSection = buildDashboardSection(dashboardData, lang);
    return base.replace(
      '<!-- /article-content -->',
      adoptedTextsHtml + deepSection + swotSection + dashboardSection
    );
  }
 
  /**
   * Return language-specific metadata for the weekly review article.
   *
   * @param data - Weekly review data payload
   * @param lang - Target language code
   * @returns Localised metadata
   */
  getMetadata(data: WeeklyReviewArticleData, lang: LanguageCode): ArticleMetadata {
    const titleFn = getLocalizedString(WEEKLY_REVIEW_TITLES, lang);
    const { title, subtitle } = titleFn(data.dateRange.start, data.dateRange.end);
    return {
      title,
      subtitle,
      keywords: [...WEEKLY_REVIEW_KEYWORDS],
      category: ArticleCategory.WEEK_IN_REVIEW,
      sources: [],
    };
  }
}
 
/** Singleton instance for use by the strategy registry */
export const weeklyReviewStrategy = new WeeklyReviewStrategy();