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// SPDX-License-Identifier: Apache-2.0
/**
* @module Generators/WeekAheadContent
* @description Pure functions for parsing MCP data and building week-ahead article HTML.
* No side effects — all functions accept data and return strings.
*/
import { escapeHTML } from '../utils/file-utils.js';
import {
getLocalizedString,
EDITORIAL_STRINGS,
WEEK_AHEAD_STRINGS,
} from '../constants/languages.js';
import type {
ParliamentEvent,
CommitteeMeeting,
LegislativeDocument,
LegislativeProcedure,
ParliamentaryQuestion,
WeekAheadData,
DateRange,
MCPToolResult,
LegislativeVelocity,
} from '../types/index.js';
/** Keyword constant for article tagging */
const KEYWORD_EUROPEAN_PARLIAMENT = 'European Parliament';
/** Placeholder events used when MCP is unavailable or returns no sessions */
export const PLACEHOLDER_EVENTS: ParliamentEvent[] = [
{
date: '',
title: 'Plenary Session',
type: 'Plenary',
description: 'Full parliamentary session',
},
{
date: '',
title: 'ENVI Committee Meeting',
type: 'Committee',
description: 'Environment committee discussion',
},
];
/**
* Parse plenary sessions from a settled MCP result
*
* @param settled - Promise.allSettled result
* @param fallbackDate - Fallback date when session has none
* @returns Array of parliament events
*/
export function parsePlenarySessions(
settled: PromiseSettledResult<MCPToolResult>,
fallbackDate: string
): ParliamentEvent[] {
if (settled.status !== 'fulfilled') return [];
try {
const text = settled.value.content?.[0]?.text ?? '{}';
const data = JSON.parse(text) as {
sessions?: Array<{ date?: string; title?: string; type?: string; description?: string }>;
};
if (!data.sessions || data.sessions.length === 0) return [];
return data.sessions.map((s) => ({
date: s.date ?? fallbackDate,
title: s.title ?? 'Parliamentary Session',
type: s.type ?? 'Session',
description: s.description ?? '',
}));
} catch {
return [];
}
}
/**
* Parse EP events (hearings, conferences, seminars) from a settled MCP result
*
* @param settled - Promise.allSettled result
* @param fallbackDate - Fallback date when event has none
* @returns Array of parliament events
*/
export function parseEPEvents(
settled: PromiseSettledResult<MCPToolResult>,
fallbackDate: string
): ParliamentEvent[] {
if (settled.status !== 'fulfilled') return [];
try {
const text = settled.value.content?.[0]?.text ?? '{}';
const data = JSON.parse(text) as {
events?: Array<{
date?: string;
title?: string;
type?: string;
description?: string;
location?: string;
}>;
};
if (!data.events || data.events.length === 0) return [];
return data.events.map((e) => ({
date: e.date ?? fallbackDate,
title: e.title ?? 'EP Event',
type: e.type ?? 'Event',
description: e.description ?? '',
}));
} catch {
return [];
}
}
/**
* Parse committee meetings from a settled MCP result
*
* @param settled - Promise.allSettled result
* @param fallbackDate - Fallback date when meeting has no date
* @returns Array of committee meetings
*/
export function parseCommitteeMeetings(
settled: PromiseSettledResult<MCPToolResult>,
fallbackDate?: string
): CommitteeMeeting[] {
if (settled.status !== 'fulfilled') return [];
try {
const text = settled.value.content?.[0]?.text ?? '{}';
const data = JSON.parse(text) as {
committees?: Array<{
id?: string;
committee?: string;
committeeName?: string;
date?: string;
time?: string;
location?: string;
agenda?: Array<{ item?: number; title?: string; type?: string }>;
}>;
};
if (!data.committees || data.committees.length === 0) return [];
return data.committees.map((c) => ({
id: c.id,
committee: c.committee ?? 'Unknown',
committeeName: c.committeeName,
date: c.date ?? fallbackDate ?? '',
time: c.time,
location: c.location,
agenda: c.agenda?.map((a) => ({
item: a.item,
title: a.title ?? '',
type: a.type,
})),
}));
} catch {
return [];
}
}
/**
* Parse legislative documents from a settled MCP result
*
* @param settled - Promise.allSettled result
* @returns Array of legislative documents
*/
export function parseLegislativeDocuments(
settled: PromiseSettledResult<MCPToolResult>
): LegislativeDocument[] {
if (settled.status !== 'fulfilled') return [];
try {
const text = settled.value.content?.[0]?.text ?? '{}';
const data = JSON.parse(text) as {
documents?: Array<{
id?: string;
type?: string;
title?: string;
date?: string;
status?: string;
committee?: string;
rapporteur?: string;
}>;
};
if (!data.documents || data.documents.length === 0) return [];
return data.documents.map((d) => ({
id: d.id,
type: d.type,
title: d.title ?? 'Untitled Document',
date: d.date,
status: d.status,
committee: d.committee,
rapporteur: d.rapporteur,
}));
} catch {
return [];
}
}
/**
* Parse legislative pipeline from a settled MCP result
*
* @param settled - Promise.allSettled result
* @returns Array of legislative procedures
*/
export function parseLegislativePipeline(
settled: PromiseSettledResult<MCPToolResult>
): LegislativeProcedure[] {
if (settled.status !== 'fulfilled') return [];
try {
const text = settled.value.content?.[0]?.text ?? '{}';
const data = JSON.parse(text) as {
procedures?: Array<{
id?: string;
title?: string;
stage?: string;
committee?: string;
status?: string;
bottleneck?: boolean;
}>;
};
if (!data.procedures || data.procedures.length === 0) return [];
return data.procedures.map((p) => ({
id: p.id,
title: p.title ?? 'Unnamed Procedure',
stage: p.stage,
committee: p.committee,
status: p.status,
bottleneck: p.bottleneck,
}));
} catch {
return [];
}
}
/**
* Parse parliamentary questions from a settled MCP result
*
* @param settled - Promise.allSettled result
* @returns Array of parliamentary questions
*/
export function parseParliamentaryQuestions(
settled: PromiseSettledResult<MCPToolResult>
): ParliamentaryQuestion[] {
Iif (settled.status !== 'fulfilled') return [];
try {
const text = settled.value.content?.[0]?.text ?? '{}';
const data = JSON.parse(text) as {
questions?: Array<{
id?: string;
type?: string;
author?: string;
subject?: string;
date?: string;
status?: string;
}>;
};
Eif (!data.questions || data.questions.length === 0) return [];
return data.questions.map((q) => ({
id: q.id,
type: q.type,
author: q.author,
subject: q.subject ?? 'No subject',
date: q.date,
status: q.status,
}));
} catch {
return [];
}
}
// ─── Render helpers ──────────────────────────────────────────────────────────
/**
* Render a single plenary event as HTML
*
* @param event - Parliament event data
* @returns HTML string
*/
function renderPlenaryEvent(event: ParliamentEvent): string {
return `
<div class="event-item">
<div class="event-date">${escapeHTML(event.date)}</div>
<div class="event-details">
<h3>${escapeHTML(event.title)}</h3>
<p class="event-type">${escapeHTML(event.type)}</p>
${event.description ? `<p>${escapeHTML(event.description)}</p>` : ''}
</div>
</div>`;
}
/**
* Render a single committee meeting as HTML
*
* @param meeting - Committee meeting data
* @returns HTML string
*/
function renderCommitteeMeeting(meeting: CommitteeMeeting): string {
const agendaHtml =
meeting.agenda && meeting.agenda.length > 0
? `<ul class="agenda-list">${meeting.agenda.map((item) => `<li>${escapeHTML(item.title)}${item.type ? ` <span class="agenda-type">(${escapeHTML(item.type)})</span>` : ''}</li>`).join('')}</ul>`
: '';
return `
<div class="committee-item">
<div class="committee-date">${escapeHTML(meeting.date)}${meeting.time ? ` ${escapeHTML(meeting.time)}` : ''}</div>
<div class="committee-details">
<h3>${escapeHTML(meeting.committeeName ?? meeting.committee)}</h3>
${meeting.location ? `<p class="committee-location">${escapeHTML(meeting.location)}</p>` : ''}
${agendaHtml}
</div>
</div>`;
}
/**
* Render a single legislative document as HTML
*
* @param doc - Legislative document
* @returns HTML string
*/
function renderLegislativeDocument(doc: LegislativeDocument): string {
return `
<li class="document-item">
<span class="document-title">${escapeHTML(doc.title)}</span>
${doc.type ? ` <span class="document-type">(${escapeHTML(doc.type)})</span>` : ''}
${doc.committee ? ` — <span class="document-committee">${escapeHTML(doc.committee)}</span>` : ''}
${doc.status ? ` <span class="document-status">[${escapeHTML(doc.status)}]</span>` : ''}
</li>`;
}
/**
* Render a single pipeline procedure as HTML
*
* @param proc - Legislative procedure
* @returns HTML string
*/
function renderPipelineProcedure(proc: LegislativeProcedure): string {
return `
<li class="pipeline-item${proc.bottleneck ? ' bottleneck' : ''}">
<span class="procedure-title">${escapeHTML(proc.title)}</span>
${proc.stage ? ` <span class="procedure-stage">${escapeHTML(proc.stage)}</span>` : ''}
${proc.committee ? ` — <span class="procedure-committee">${escapeHTML(proc.committee)}</span>` : ''}
${proc.bottleneck ? ' <span class="bottleneck-indicator">⚠ Bottleneck</span>' : ''}
</li>`;
}
/**
* Render a single parliamentary question as HTML
*
* @param q - Parliamentary question
* @returns HTML string
*/
function renderQuestion(q: ParliamentaryQuestion): string {
return `
<li class="qa-item">
<span class="qa-subject">${escapeHTML(q.subject)}</span>
${q.type ? ` <span class="qa-type">(${escapeHTML(q.type)})</span>` : ''}
${q.author ? ` — <span class="qa-author">${escapeHTML(q.author)}</span>` : ''}
</li>`;
}
// ─── Content builders ────────────────────────────────────────────────────────
/**
* Build the supplementary lede sentence about committee and pipeline counts.
*
* @param committeeCount - Number of committee meetings
* @param pipelineCount - Number of pipeline procedures
* @returns Sentence fragment or empty string
*/
function buildLedeDetail(committeeCount: number, pipelineCount: number): string {
if (committeeCount === 0 && pipelineCount === 0) return '';
const committeePart =
committeeCount > 0
? `${committeeCount} committee meeting${committeeCount !== 1 ? 's are' : ' is'} scheduled`
: '';
const pipelinePart =
pipelineCount > 0
? `${pipelineCount} legislative procedure${pipelineCount !== 1 ? 's are' : ' is'} advancing through the pipeline`
: '';
const conjunction = committeePart && pipelinePart ? ' and ' : '';
return ` Notably, ${committeePart}${conjunction}${pipelinePart}.`;
}
/**
* Build article content HTML from week-ahead data
*
* @param weekData - Aggregated week-ahead data
* @param dateRange - Date range for the article
* @param lang - Language code for editorial strings (default: 'en')
* @returns HTML content string
*/
export function buildWeekAheadContent(
weekData: WeekAheadData,
dateRange: DateRange,
lang = 'en'
): string {
const editorial = getLocalizedString(EDITORIAL_STRINGS, lang);
const strings = getLocalizedString(WEEK_AHEAD_STRINGS, lang);
const plenaryHtml =
weekData.events.length > 0
? weekData.events.map(renderPlenaryEvent).join('')
: `<p>${escapeHTML(strings.noPlenary)}</p>`;
const committeeSection =
weekData.committees.length > 0
? `<section class="committee-calendar">
<h2>${escapeHTML(strings.committeeMeetings)}</h2>
${weekData.committees.map(renderCommitteeMeeting).join('')}
</section>`
: '';
const documentsSection =
weekData.documents.length > 0
? `<section class="legislative-documents">
<h2>${escapeHTML(strings.legislativeDocuments)}</h2>
<ul class="document-list">${weekData.documents.map(renderLegislativeDocument).join('')}</ul>
</section>`
: '';
const pipelineSection =
weekData.pipeline.length > 0
? `<section class="legislative-pipeline">
<h2>${escapeHTML(strings.legislativePipeline)}</h2>
<ul class="pipeline-list">${weekData.pipeline.map(renderPipelineProcedure).join('')}</ul>
</section>`
: '';
const qaSection =
weekData.questions.length > 0
? `<section class="qa-schedule">
<h2>${escapeHTML(strings.parliamentaryQuestions)}</h2>
<ul class="qa-list">${weekData.questions.map(renderQuestion).join('')}</ul>
</section>`
: '';
const ledeDetail = buildLedeDetail(weekData.committees.length, weekData.pipeline.length);
const whyThisMattersSection = `
<section class="why-this-matters">
<h2>${escapeHTML(editorial.whyThisMatters)}</h2>
<p>${escapeHTML(editorial.parliamentaryContext)}: ${escapeHTML(editorial.sourceAttribution)} — parliamentary schedules determine the legislative agenda affecting EU citizens directly.</p>
</section>`;
return `
<div class="article-content">
<section class="lede">
<p>${escapeHTML(strings.lede)} from ${escapeHTML(dateRange.start)} to ${escapeHTML(dateRange.end)}.${escapeHTML(ledeDetail)}</p>
</section>
${whyThisMattersSection}
<section class="plenary-schedule">
<h2>${escapeHTML(strings.plenarySessions)}</h2>
${plenaryHtml}
</section>
${committeeSection}
${documentsSection}
${pipelineSection}
${qaSection}
<!-- /article-content -->
</div>
`;
}
/**
* Build article keywords from week-ahead data
*
* @param weekData - Aggregated week-ahead data
* @returns Array of keyword strings
*/
export function buildKeywords(weekData: WeekAheadData): string[] {
const keywords = [KEYWORD_EUROPEAN_PARLIAMENT, 'week ahead', 'plenary', 'committees'];
for (const c of weekData.committees) {
if (c.committee && !keywords.includes(c.committee)) {
keywords.push(c.committee);
}
}
if (weekData.pipeline.length > 0) keywords.push('legislative pipeline');
if (weekData.questions.length > 0) keywords.push('parliamentary questions');
return keywords;
}
// ─── What-to-Watch section ─────────────────────────────────────────────────
/** CSS class for bottleneck-risk watch items */
const CSS_WATCH_HIGH = 'watch-high';
/** CSS class for bottlenecked procedure watch items */
const CSS_WATCH_PROCEDURE = 'watch-procedure';
/** CSS class for standard velocity watch items */
const CSS_WATCH_ITEM = 'watch-item';
/** Maximum number of non-bottleneck velocity items to include */
const WATCH_MAX_NORMAL_ITEMS = 3;
/**
* Build list items for high-risk velocities
*
* @param velocities - All legislative velocities
* @returns HTML list items for high bottleneck risk items
*/
function buildHighRiskItems(velocities: LegislativeVelocity[]): string {
return velocities
.filter((v) => v.bottleneckRisk === 'high')
.map(
(v) =>
`<li class="${CSS_WATCH_HIGH}">${escapeHTML(v.title)} — ` +
`Stage: ${escapeHTML(v.stage)} (bottleneck risk detected)</li>`
)
.join('');
}
/**
* Build list items for procedures flagged as bottlenecks
*
* @param procedures - All legislative procedures
* @returns HTML list items for bottlenecked procedures
*/
function buildBottleneckProcedureItems(procedures: LegislativeProcedure[]): string {
return procedures
.filter((p) => p.bottleneck === true)
.map(
(p) =>
`<li class="${CSS_WATCH_PROCEDURE}">${escapeHTML(p.title)} — ` +
`${escapeHTML(p.stage ?? 'in progress')} stage</li>`
)
.join('');
}
/**
* Build list items for normal-risk velocities
*
* @param velocities - All legislative velocities
* @returns HTML list items for the top normal-risk velocity items
*/
function buildNormalVelocityItems(velocities: LegislativeVelocity[]): string {
return velocities
.filter((v) => v.bottleneckRisk !== 'high')
.slice(0, WATCH_MAX_NORMAL_ITEMS)
.map(
(v) =>
`<li class="${CSS_WATCH_ITEM}">${escapeHTML(v.title)} — ` +
`predicted completion: ${escapeHTML(v.predictedCompletion)}</li>`
)
.join('');
}
/**
* Build predictive "What to Watch" analysis section showing legislative
* procedures and velocity data ordered by bottleneck risk.
* Returns an empty string when both input arrays are empty or yield no items.
*
* @param procedures - Legislative procedures to analyse
* @param velocities - Legislative velocity data (for example from a separate velocity analysis feed)
* @param language - BCP 47 language code used as the section lang attribute
* @returns HTML string for the "What to Watch" section
*/
export function buildWhatToWatchSection(
procedures: LegislativeProcedure[],
velocities: LegislativeVelocity[],
language: string
): string {
if (procedures.length === 0 && velocities.length === 0) return '';
const allItems =
buildHighRiskItems(velocities) +
buildBottleneckProcedureItems(procedures) +
buildNormalVelocityItems(velocities);
if (!allItems) return '';
const strings = getLocalizedString(WEEK_AHEAD_STRINGS, language);
return `
<section class="what-to-watch" lang="${escapeHTML(language)}">
<h2>${escapeHTML(strings.whatToWatch)}</h2>
<ul>
${allItems}
</ul>
</section>`;
}
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