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// SPDX-License-Identifier: Apache-2.0
/**
* @module Generators/DeepAnalysisContent
* @description Pure functions for building the deep political analysis HTML
* section using the "5W + Impact" framework. This section is injected into
* every article type to provide parliament-intelligence-grade analysis.
*
* The framework covers:
* - **What**: Core subject
* - **Who**: Key actors (political groups, rapporteurs, MEPs, institutions)
* - **When**: Timeline and key dates
* - **Why**: Root causes and strategic motivations
* - **Winners/Losers**: Stakeholder impact assessment
* - **Impact**: Multi-perspective consequences (political, economic, social, legal, geopolitical)
* - **Actions → Consequences**: Causal chains from decisions to outcomes
* - **Mistakes**: Miscalculations and missed opportunities
* - **Outlook**: Strategic forward look
*/
import { escapeHTML } from '../utils/file-utils.js';
import { getLocalizedString, DEEP_ANALYSIS_STRINGS } from '../constants/languages.js';
import type {
DeepAnalysis,
StakeholderOutcome,
ActionConsequence,
PoliticalMistake,
} from '../types/index.js';
// ─── Sub-section builders ────────────────────────────────────────────────────
/**
* Build the "What" sub-section
*
* @param what - Description of what happened
* @param heading - Localized heading
* @returns HTML string
*/
function buildWhatSection(what: string, heading: string): string {
Iif (!what) return '';
return `
<div class="analysis-what">
<h3>${escapeHTML(heading)}</h3>
<p>${escapeHTML(what)}</p>
</div>`;
}
/**
* Build the "Who" sub-section with key actors list
*
* @param who - Array of actor names/descriptions
* @param heading - Localized heading
* @returns HTML string
*/
function buildWhoSection(who: readonly string[], heading: string): string {
if (who.length === 0) return '';
const items = who.map((actor) => `<li>${escapeHTML(actor)}</li>`).join('\n ');
return `
<div class="analysis-who">
<h3>${escapeHTML(heading)}</h3>
<ul class="actor-list">
${items}
</ul>
</div>`;
}
/**
* Build the "When" sub-section with timeline
*
* @param when - Array of date/milestone descriptions
* @param heading - Localized heading
* @returns HTML string
*/
function buildWhenSection(when: readonly string[], heading: string): string {
if (when.length === 0) return '';
const items = when
.map((milestone) => `<li class="timeline-item">${escapeHTML(milestone)}</li>`)
.join('\n ');
return `
<div class="analysis-when">
<h3>${escapeHTML(heading)}</h3>
<ol class="timeline-list">
${items}
</ol>
</div>`;
}
/**
* Build the "Why" sub-section
*
* @param why - Root cause analysis text
* @param heading - Localized heading
* @returns HTML string
*/
function buildWhySection(why: string, heading: string): string {
Iif (!why) return '';
return `
<div class="analysis-why">
<h3>${escapeHTML(heading)}</h3>
<p>${escapeHTML(why)}</p>
</div>`;
}
/**
* Map stakeholder outcome to CSS class
*
* @param outcome - Winner/loser/neutral
* @returns CSS class name
*/
function outcomeClass(outcome: StakeholderOutcome['outcome']): string {
return `stakeholder-${outcome}`;
}
/**
* Get localized label for stakeholder outcome
*
* @param outcome - Winner/loser/neutral
* @param strings - Localized strings
* @param strings.winnerLabel
* @param strings.loserLabel
* @param strings.neutralLabel
* @returns Localized label
*/
function outcomeLabel(
outcome: StakeholderOutcome['outcome'],
strings: { winnerLabel: string; loserLabel: string; neutralLabel: string }
): string {
switch (outcome) {
case 'winner':
return strings.winnerLabel;
case 'loser':
return strings.loserLabel;
default:
return strings.neutralLabel;
}
}
/**
* Build the "Winners & Losers" sub-section
*
* @param outcomes - Stakeholder assessments
* @param heading - Localized heading
* @param strings - Localized label strings
* @param strings.winnerLabel
* @param strings.loserLabel
* @param strings.neutralLabel
* @returns HTML string
*/
function buildStakeholderSection(
outcomes: readonly StakeholderOutcome[],
heading: string,
strings: { winnerLabel: string; loserLabel: string; neutralLabel: string }
): string {
if (outcomes.length === 0) return '';
const items = outcomes
.map(
(s) =>
`<li class="stakeholder-item ${outcomeClass(s.outcome)}">` +
`<span class="stakeholder-badge">${escapeHTML(outcomeLabel(s.outcome, strings))}</span> ` +
`<strong>${escapeHTML(s.actor)}</strong>: ${escapeHTML(s.reason)}` +
`</li>`
)
.join('\n ');
return `
<div class="analysis-stakeholders">
<h3>${escapeHTML(heading)}</h3>
<ul class="stakeholder-list">
${items}
</ul>
</div>`;
}
/**
* Build the multi-perspective "Impact Assessment" sub-section
*
* @param impact - Impact strings per perspective
* @param heading - Localized heading
* @param labels - Localized perspective labels
* @param labels.politicalLabel
* @param labels.economicLabel
* @param labels.socialLabel
* @param labels.legalLabel
* @param labels.geopoliticalLabel
* @returns HTML string
*/
function buildImpactSection(
impact: DeepAnalysis['impactAssessment'],
heading: string,
labels: {
politicalLabel: string;
economicLabel: string;
socialLabel: string;
legalLabel: string;
geopoliticalLabel: string;
}
): string {
const perspectives = [
{ label: labels.politicalLabel, text: impact.political, css: 'impact-political' },
{ label: labels.economicLabel, text: impact.economic, css: 'impact-economic' },
{ label: labels.socialLabel, text: impact.social, css: 'impact-social' },
{ label: labels.legalLabel, text: impact.legal, css: 'impact-legal' },
{ label: labels.geopoliticalLabel, text: impact.geopolitical, css: 'impact-geopolitical' },
].filter((p) => p.text);
if (perspectives.length === 0) return '';
const items = perspectives
.map(
(p) =>
`<div class="impact-perspective ${p.css}">` +
`<h4>${escapeHTML(p.label)}</h4>` +
`<p>${escapeHTML(p.text)}</p>` +
`</div>`
)
.join('\n ');
return `
<div class="analysis-impact">
<h3>${escapeHTML(heading)}</h3>
<div class="impact-grid">
${items}
</div>
</div>`;
}
/**
* Get localized severity label
*
* @param severity - Severity level
* @param strings - Localized strings
* @param strings.severityLow
* @param strings.severityMedium
* @param strings.severityHigh
* @param strings.severityCritical
* @returns Localized label
*/
function severityLabel(
severity: ActionConsequence['severity'],
strings: {
severityLow: string;
severityMedium: string;
severityHigh: string;
severityCritical: string;
}
): string {
switch (severity) {
case 'low':
return strings.severityLow;
case 'medium':
return strings.severityMedium;
case 'high':
return strings.severityHigh;
case 'critical':
return strings.severityCritical;
default:
return String(severity);
}
}
/**
* Build the "Actions → Consequences" sub-section
*
* @param items - Action-consequence pairs
* @param heading - Localized heading
* @param labels - Localized column labels
* @param labels.actionLabel
* @param labels.consequenceLabel
* @param strings - Localized severity strings
* @param strings.severityLow
* @param strings.severityMedium
* @param strings.severityHigh
* @param strings.severityCritical
* @returns HTML string
*/
function buildConsequencesSection(
items: readonly ActionConsequence[],
heading: string,
labels: { actionLabel: string; consequenceLabel: string },
strings: {
severityLow: string;
severityMedium: string;
severityHigh: string;
severityCritical: string;
}
): string {
if (items.length === 0) return '';
const rows = items
.map(
(item) =>
`<tr class="consequence-row severity-${escapeHTML(item.severity)}">` +
`<td class="action-cell">${escapeHTML(item.action)}</td>` +
`<td class="arrow-cell">→</td>` +
`<td class="consequence-cell">${escapeHTML(item.consequence)}</td>` +
`<td class="severity-cell"><span class="severity-badge severity-${escapeHTML(item.severity)}">${escapeHTML(severityLabel(item.severity, strings))}</span></td>` +
`</tr>`
)
.join('\n ');
return `
<div class="analysis-consequences">
<h3>${escapeHTML(heading)}</h3>
<table class="consequences-table" role="table">
<thead>
<tr>
<th scope="col">${escapeHTML(labels.actionLabel)}</th>
<th scope="col" aria-hidden="true"></th>
<th scope="col">${escapeHTML(labels.consequenceLabel)}</th>
<th scope="col"></th>
</tr>
</thead>
<tbody>
${rows}
</tbody>
</table>
</div>`;
}
/**
* Build the "Mistakes" sub-section
*
* @param mistakes - Political mistake assessments
* @param heading - Localized heading
* @param alternativeLabel - Localized "should have" label
* @returns HTML string
*/
function buildMistakesSection(
mistakes: readonly PoliticalMistake[],
heading: string,
alternativeLabel: string
): string {
if (mistakes.length === 0) return '';
const items = mistakes
.map(
(m) =>
`<div class="mistake-item">` +
`<p class="mistake-actor"><strong>${escapeHTML(m.actor)}</strong></p>` +
`<p class="mistake-desc">${escapeHTML(m.description)}</p>` +
`<p class="mistake-alt"><em>${escapeHTML(alternativeLabel)}:</em> ${escapeHTML(m.alternative)}</p>` +
`</div>`
)
.join('\n ');
return `
<div class="analysis-mistakes">
<h3>${escapeHTML(heading)}</h3>
${items}
</div>`;
}
/**
* Build the "Strategic Outlook" sub-section
*
* @param outlook - Forward-looking analysis text
* @param heading - Localized heading
* @returns HTML string
*/
function buildOutlookSection(outlook: string, heading: string): string {
if (!outlook) return '';
return `
<div class="analysis-outlook">
<h3>${escapeHTML(heading)}</h3>
<p>${escapeHTML(outlook)}</p>
</div>`;
}
// ─── Main builder ────────────────────────────────────────────────────────────
/**
* Build the complete deep political analysis section HTML.
*
* This section provides parliament-intelligence-grade analysis using the
* "5W + Impact" framework. It is designed for sophisticated readers who
* want multi-perspective understanding of European Parliament decisions.
*
* Returns an empty string if the analysis object is null/undefined or
* contains no meaningful content.
*
* @param analysis - Deep analysis data (null/undefined returns empty string)
* @param lang - BCP 47 language code for localized headings
* @returns HTML section string or empty string
*/
export function buildDeepAnalysisSection(
analysis: DeepAnalysis | null | undefined,
lang: string
): string {
if (!analysis) return '';
const strings = getLocalizedString(DEEP_ANALYSIS_STRINGS, lang);
const whatHtml = buildWhatSection(analysis.what, strings.whatHeading);
const whoHtml = buildWhoSection(analysis.who, strings.whoHeading);
const whenHtml = buildWhenSection(analysis.when, strings.whenHeading);
const whyHtml = buildWhySection(analysis.why, strings.whyHeading);
const stakeholderHtml = buildStakeholderSection(
analysis.stakeholderOutcomes,
strings.stakeholderHeading,
strings
);
const impactHtml = buildImpactSection(analysis.impactAssessment, strings.impactHeading, strings);
const consequencesHtml = buildConsequencesSection(
analysis.actionConsequences,
strings.consequencesHeading,
strings,
strings
);
const mistakesHtml = buildMistakesSection(
analysis.mistakes,
strings.mistakesHeading,
strings.alternativeLabel
);
const outlookHtml = buildOutlookSection(analysis.outlook, strings.outlookHeading);
const innerContent =
whatHtml +
whoHtml +
whenHtml +
whyHtml +
stakeholderHtml +
impactHtml +
consequencesHtml +
mistakesHtml +
outlookHtml;
// If all sub-sections are empty, return nothing
Iif (!innerContent.trim()) return '';
return `
<section class="deep-analysis" lang="${escapeHTML(lang)}">
<h2>${escapeHTML(strings.sectionHeading)}</h2>
${innerContent}
</section>`;
}
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