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// SPDX-License-Identifier: Apache-2.0
/**
* @module Generators/Strategies/WeekAheadStrategy
* @description Article strategy for the Week Ahead article type.
* Fetches plenary sessions, committee meetings, documents, pipeline and
* parliamentary questions then renders a forward-looking HTML article.
*/
import type { EuropeanParliamentMCPClient } from '../../mcp/ep-mcp-client.js';
import { ArticleCategory } from '../../types/index.js';
import type { LanguageCode, DateRange, WeekAheadData, EPFeedData } from '../../types/index.js';
import { WEEK_AHEAD_TITLES, getLocalizedString } from '../../constants/languages.js';
import { fetchWeekAheadData, fetchEPFeedData } from '../pipeline/fetch-stage.js';
import {
buildWeekAheadContent,
buildKeywords,
buildWhatToWatchSection,
} from '../week-ahead-content.js';
import { buildDeepAnalysisSection } from '../deep-analysis-content.js';
import {
buildProspectiveAnalysis,
buildProspectiveSwot,
buildProspectiveDashboard,
buildProspectiveMindmap,
} from '../analysis-builders.js';
import { buildSwotSection } from '../swot-content.js';
import { buildDashboardSection } from '../dashboard-content.js';
import { buildIntelligenceMindmapSection } from '../mindmap-content.js';
import type { ArticleStrategy, ArticleData, ArticleMetadata } from './article-strategy.js';
import { pl } from '../../utils/metadata-utils.js';
// ─── Data payload ─────────────────────────────────────────────────────────────
/** Data fetched and pre-processed by {@link WeekAheadStrategy} */
export interface WeekAheadArticleData extends ArticleData {
/** Week-ahead date range */
readonly dateRange: DateRange;
/** Aggregated week-ahead domain data */
readonly weekData: WeekAheadData;
/** SEO keywords derived from the week-ahead data */
readonly keywords: readonly string[];
/** EP feed data for enrichment (when available) */
readonly feedData?: EPFeedData | undefined;
}
// ─── Date-range helper ────────────────────────────────────────────────────────
/**
* Compute the week-ahead date range starting the day after `baseDate`.
*
* @param baseDate - ISO 8601 publication date (YYYY-MM-DD)
* @returns Date range spanning the next 7 days
*/
function computeWeekAheadDateRange(baseDate: string): DateRange {
const base = new Date(`${baseDate}T00:00:00Z`);
const startDate = new Date(base);
startDate.setUTCDate(base.getUTCDate() + 1);
const endDate = new Date(startDate);
endDate.setUTCDate(startDate.getUTCDate() + 7);
const startParts = startDate.toISOString().split('T');
const endParts = endDate.toISOString().split('T');
Iif (!startParts[0] || !endParts[0]) {
throw new Error('Invalid date format generated in computeWeekAheadDateRange');
}
return {
start: startParts[0],
end: endParts[0],
};
}
// ─── Content-aware metadata helpers ───────────────────────────────────────────
/**
* Build a content-aware title suffix from week-ahead data counts.
*
* @param weekData - Aggregated week-ahead domain data
* @returns Short suffix for the title, or empty string
*/
function buildWeekAheadTitleSuffix(weekData: WeekAheadData): string {
const parts: string[] = [];
if (weekData.events.length > 0) parts.push(pl(weekData.events.length, 'Event', 'Events'));
if (weekData.committees.length > 0)
parts.push(pl(weekData.committees.length, 'Committee Meeting', 'Committee Meetings'));
if (weekData.pipeline.length > 0)
parts.push(pl(weekData.pipeline.length, 'Pipeline Item', 'Pipeline Items'));
return parts.join(', ');
}
/**
* Build a content-aware description from week-ahead data.
* Summarises event counts, committee meetings, and key highlights.
*
* @param weekData - Aggregated week-ahead domain data
* @param dateRange - Date range for the article
* @returns SEO-friendly description (≤ 200 chars)
*/
function buildWeekAheadDescription(weekData: WeekAheadData, dateRange: DateRange): string {
const parts: string[] = [];
if (weekData.events.length > 0)
parts.push(`${pl(weekData.events.length, 'scheduled event', 'scheduled events')}`);
if (weekData.committees.length > 0)
parts.push(`${pl(weekData.committees.length, 'committee meeting', 'committee meetings')}`);
if (weekData.pipeline.length > 0)
parts.push(
`${pl(weekData.pipeline.length, 'legislative pipeline item', 'legislative pipeline items')}`
);
if (weekData.questions.length > 0)
parts.push(
`${pl(weekData.questions.length, 'parliamentary question', 'parliamentary questions')}`
);
if (parts.length === 0) {
return `European Parliament calendar and plenary agenda for ${dateRange.start} to ${dateRange.end}.`;
}
const highlight = weekData.events[0]?.title ?? '';
const base = `EP week ahead (${dateRange.start}–${dateRange.end}): ${parts.join(', ')}`;
if (highlight) {
const full = `${base}. Key: ${highlight}`;
return full.length > 200 ? full.slice(0, 197) + '...' : full;
}
return base.length > 200 ? base.slice(0, 197) + '...' : base;
}
// ─── Strategy implementation ──────────────────────────────────────────────────
/**
* Article strategy for {@link ArticleCategory.WEEK_AHEAD}.
* Fetches plenary, committee, document, pipeline and question data then builds
* a forward-looking preview of the upcoming parliamentary week.
*/
export class WeekAheadStrategy implements ArticleStrategy<WeekAheadArticleData> {
readonly type = ArticleCategory.WEEK_AHEAD;
readonly requiredMCPTools = [
'get_plenary_sessions',
'get_committee_info',
'search_documents',
'monitor_legislative_pipeline',
'get_parliamentary_questions',
'get_events',
'get_events_feed',
'get_plenary_documents_feed',
'get_adopted_texts_feed',
] as const;
/**
* Fetch week-ahead data from MCP.
*
* @param client - MCP client or null
* @param date - ISO 8601 publication date
* @returns Populated week-ahead data payload
*/
async fetchData(
client: EuropeanParliamentMCPClient | null,
date: string
): Promise<WeekAheadArticleData> {
const dateRange = computeWeekAheadDateRange(date);
console.log(` 📆 Date range: ${dateRange.start} to ${dateRange.end}`);
// Fetch traditional MCP data and EP feeds in parallel
const [weekData, feedData] = await Promise.all([
fetchWeekAheadData(client, dateRange),
fetchEPFeedData(client, 'one-week', dateRange),
]);
const keywords = buildKeywords(weekData);
return {
date,
dateRange,
weekData,
keywords,
feedData,
};
}
/**
* Build the week-ahead HTML body for the specified language.
*
* @param data - Week-ahead data payload
* @param lang - Target language code used for editorial strings
* @returns Article HTML body
*/
buildContent(data: WeekAheadArticleData, lang: LanguageCode): string {
const base = buildWeekAheadContent(data.weekData, data.dateRange, lang);
const watchSection = buildWhatToWatchSection(data.weekData.pipeline, [], lang);
const analysis = buildProspectiveAnalysis(data.weekData, data.dateRange, 'week');
const analysisSection = buildDeepAnalysisSection(analysis, lang, 'en');
const mindmapData = buildProspectiveMindmap(data.weekData, lang);
const mindmapSection = buildIntelligenceMindmapSection(mindmapData, lang);
const swotData = buildProspectiveSwot(data.weekData, 'week', lang);
const swotSection = buildSwotSection(swotData, lang);
const dashboardData = buildProspectiveDashboard(data.weekData, 'week', lang);
const dashboardSection = buildDashboardSection(dashboardData, lang);
// Inject at the explicit <!-- /article-content --> marker position so the
// section stays inside the .article-content styling scope. The marker is
// removed from the final HTML output to avoid unnecessary bytes.
const injection =
(watchSection || '') + analysisSection + mindmapSection + swotSection + dashboardSection;
Eif (injection) {
return base.replace('<!-- /article-content -->', injection);
}
return base.replace('<!-- /article-content -->', '');
}
/**
* Return language-specific metadata for the week-ahead article.
*
* @param data - Week-ahead data payload
* @param lang - Target language code
* @returns Localised metadata
*/
getMetadata(data: WeekAheadArticleData, lang: LanguageCode): ArticleMetadata {
const titleFn = getLocalizedString(WEEK_AHEAD_TITLES, lang);
const { title: baseTitle, subtitle: baseSubtitle } = titleFn(
data.dateRange.start,
data.dateRange.end
);
const suffix = lang === 'en' ? buildWeekAheadTitleSuffix(data.weekData) : '';
const title = suffix ? `${baseTitle} — ${suffix}` : baseTitle;
const subtitle =
lang === 'en'
? buildWeekAheadDescription(data.weekData, data.dateRange) || baseSubtitle
: baseSubtitle;
return {
title,
subtitle,
keywords: data.keywords,
category: ArticleCategory.WEEK_AHEAD,
sources: [],
};
}
}
/** Singleton instance for use by the strategy registry */
export const weekAheadStrategy = new WeekAheadStrategy();
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