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* @module article-template/template
* @description Main article HTML template generator producing complete
* HTML5 documents with Schema.org structured data, Open Graph / Twitter
* Card metadata, hreflang tags, and 14-language support.
*
* @author Hack23 AB
* @license Apache-2.0
*/
import { escapeHtml } from '../html-utils.js';
import { CONTENT_LABELS } from '../data-transformers.js';
import type { Language } from '../types/language.js';
import type { ArticleData, EventGridItem, WatchPoint, TemplateSection } from '../types/article.js';
import { SITE_TAGLINE, OG_LOCALE_MAP, TYPE_LABELS, ALL_LANG_CODES } from './constants.js';
import { getStyleClass } from './registry.js';
import { ARTICLE_TYPE_NAMES } from './types.js';
import {
getBreadcrumbName,
getFooterLabel,
getNewsIndexFilename,
sanitizeArticleBody,
fixHtmlNesting,
formatDate,
generateEventCalendar,
generateWatchSection,
generateArticleLanguageSwitcher,
generateSiteFooter,
hreflangCode,
} from './helpers.js';
/**
* Generate complete article HTML document.
*
* @param data - Article data including title, subtitle, content, events, watchPoints, etc.
* @returns Complete HTML5 document string
*/
export function generateArticleHTML(data: ArticleData): string {
const {
slug,
title,
subtitle,
date,
type,
articleType,
readTime = '5 min read',
lang = 'en',
locale,
content,
events = [],
watchPoints = [],
sources = [],
keywords = [],
tags = [],
sections = [],
} = data;
// Use proper OG locale for the language
const ogLocale: string = locale || OG_LOCALE_MAP[lang] || 'en_US';
const dateObj: Date = new Date(date);
const formattedDate: string = formatDate(dateObj, lang);
const isoDate: string = dateObj.toISOString().split('T')[0] ?? '';
// Fix invalid HTML nesting once so both the rendered body and JSON-LD are consistent
const fixedContent: string = fixHtmlNesting(content);
// Fall back to English labels if language not supported.
// When articleType is set, prefer the per-type localized name from
// ARTICLE_TYPE_NAMES (e.g. "Propositioner") over the category label
// from TYPE_LABELS (e.g. "Analysis"). Fall back to TYPE_LABELS when
// articleType is omitted or has no entry.
const typeLabel: string = (articleType && ARTICLE_TYPE_NAMES[articleType]?.[lang])
|| (articleType && ARTICLE_TYPE_NAMES[articleType]?.['en'])
|| TYPE_LABELS[lang]?.[type]
|| TYPE_LABELS.en[type]
|| 'News';
// Derive the per-type CSS class from the registry (e.g. 'article-type-propositions')
// Only apply when articleType is explicitly set — ArticleCategory values are not
// valid ArticleType keys, so falling back to `type` would silently resolve to
// the 'breaking' default. When omitted, keep the base `.news-article` styling.
const articleTypeClass: string = articleType ? ` ${getStyleClass(articleType)}` : '';
// Generate hreflang tags for all available language variants
const isRTL: boolean = lang === 'ar' || lang === 'he';
const dirAttr: string = isRTL ? ' dir="rtl"' : '';
const baseSlug: string = slug.replace(`-${lang}.html`, '');
return `<!DOCTYPE html>
<html lang="${hreflangCode(lang)}"${dirAttr}>
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="Content-Security-Policy" content="default-src 'self' https:; script-src 'self' 'unsafe-inline' https:; style-src 'self' 'unsafe-inline' https://fonts.googleapis.com; font-src 'self' https://fonts.gstatic.com; img-src 'self' data: https:; connect-src 'self' https:; base-uri 'self'; form-action 'self'">
<title>${escapeHtml(title)}</title>
<meta name="description" content="${escapeHtml(subtitle).substring(0, 160)}">
<meta name="keywords" content="${keywords.join(', ')}">
<meta name="author" content="James Pether Sörling, CISSP, CISM">
<link rel="canonical" href="https://riksdagsmonitor.com/news/${slug}">
<!-- Open Graph / Social Media -->
<meta property="og:title" content="${escapeHtml(title)}">
<meta property="og:description" content="${escapeHtml(subtitle).substring(0, 200)}">
<meta property="og:type" content="article">
<meta property="og:url" content="https://riksdagsmonitor.com/news/${slug}">
<meta property="og:image" content="https://riksdagsmonitor.com/images/og-image-news.webp">
<meta property="og:image:width" content="1200">
<meta property="og:image:height" content="630">
<meta property="og:image:alt" content="Riksdagsmonitor - Swedish Parliament Intelligence">
<meta property="og:locale" content="${ogLocale}">
<meta property="og:site_name" content="Riksdagsmonitor - Swedish Parliament Intelligence">
<meta property="article:published_time" content="${dateObj.toISOString()}">
<meta property="article:modified_time" content="${dateObj.toISOString()}">
<meta property="article:author" content="James Pether Sörling">
<meta property="article:section" content="${typeLabel}">
${tags.map(tag => ` <meta property="article:tag" content="${escapeHtml(tag)}">`).join('\n')}
<!-- Twitter Card -->
<meta name="twitter:card" content="summary_large_image">
<meta name="twitter:title" content="${escapeHtml(title)}">
<meta name="twitter:description" content="${escapeHtml(subtitle).substring(0, 200)}">
<meta name="twitter:image" content="https://riksdagsmonitor.com/images/og-image-news.webp">
<meta name="twitter:image:alt" content="Riksdagsmonitor - Swedish Parliament Intelligence">
<meta name="twitter:site" content="@riksdagsmonitor">
<meta name="twitter:creator" content="@jamessorling">
<meta name="twitter:label1" content="${CONTENT_LABELS[lang]?.twitterLabel1 ?? CONTENT_LABELS.en.twitterLabel1}">
<meta name="twitter:data1" content="${readTime}">
<meta name="twitter:label2" content="${CONTENT_LABELS[lang]?.twitterLabel2 ?? CONTENT_LABELS.en.twitterLabel2}">
<meta name="twitter:data2" content="${typeLabel}">
<!-- Hreflang for language alternatives -->
${ALL_LANG_CODES.map(l => ` <link rel="alternate" hreflang="${hreflangCode(l)}" href="https://riksdagsmonitor.com/news/${baseSlug}-${l}.html">`).join('\n')}
<link rel="alternate" hreflang="x-default" href="https://riksdagsmonitor.com/news/${baseSlug}-en.html">
<!-- Favicons -->
<link rel="icon" type="image/png" sizes="32x32" href="/images/favicon-32x32.png">
<link rel="icon" type="image/png" sizes="16x16" href="/images/favicon-16x16.png">
<link rel="icon" type="image/png" sizes="96x96" href="/images/favicon-96x96.png">
<link rel="apple-touch-icon" sizes="180x180" href="/images/apple-touch-icon.png">
<link rel="icon" href="/favicon.ico" sizes="48x48">
<link rel="manifest" href="/site.webmanifest">
<meta name="theme-color" content="#0a0e27">
<!-- Google Fonts -->
<link rel="preconnect" href="https://fonts.googleapis.com">
<link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
<link href="https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap" rel="stylesheet">
<link rel="stylesheet" href="https://fonts.googleapis.com/css2?family=Orbitron:wght@500;600;700&family=Share+Tech+Mono&display=swap" media="print" onload="this.media='all'">
<noscript><link rel="stylesheet" href="https://fonts.googleapis.com/css2?family=Orbitron:wght@500;600;700&family=Share+Tech+Mono&display=swap"></noscript>
<!-- Main stylesheet — includes all article styles + component/theme imports -->
<link rel="stylesheet" href="../styles.css">
<!-- Anti-flash: apply saved theme before first paint -->
<script>(function(){var key='riksdagsmonitor-theme';var t=null;try{t=localStorage.getItem(key);}catch(e){}if(t!=='dark'&&t!=='light'){if(t!==null){try{localStorage.removeItem(key);}catch(e){}}t=(window.matchMedia&&window.matchMedia('(prefers-color-scheme: dark)').matches)?'dark':'light';}document.documentElement.setAttribute('data-theme',t);}());</script>
<!-- Schema.org NewsArticle structured data -->
<script type="application/ld+json">
{
"@context": "https://schema.org",
"@type": "NewsArticle",
"headline": "${escapeHtml(title)}",
"alternativeHeadline": "${escapeHtml(subtitle).substring(0, 100)}",
"description": "${escapeHtml(subtitle).substring(0, 200)}",
"datePublished": "${dateObj.toISOString()}",
"dateModified": "${dateObj.toISOString()}",
"author": {
"@type": "Person",
"name": "James Pether Sörling",
"jobTitle": "${CONTENT_LABELS[lang]?.jobTitle ?? CONTENT_LABELS.en.jobTitle}",
"affiliation": {
"@type": "Organization",
"name": "Hack23 AB"
},
"url": "https://riksdagsmonitor.com"
},
"publisher": {
"@type": "Organization",
"name": "Riksdagsmonitor",
"url": "https://riksdagsmonitor.com",
"logo": {
"@type": "ImageObject",
"url": "https://riksdagsmonitor.com/images/android-chrome-512x512.png",
"width": 512,
"height": 512
}
},
"image": {
"@type": "ImageObject",
"url": "https://riksdagsmonitor.com/images/og-image-news.webp",
"width": 1200,
"height": 630
},
"articleSection": "${typeLabel}",
"articleBody": "${sanitizeArticleBody(escapeHtml(fixedContent))}...",
"wordCount": ${Math.ceil(fixedContent.length / 5)},
"inLanguage": "${hreflangCode(lang)}",
"keywords": "${keywords.join(', ')}",
"about": {
"@type": "Thing",
"name": "Swedish Parliament",
"sameAs": "https://www.wikidata.org/wiki/Q1968818"
},
"isAccessibleForFree": true,
"isPartOf": {
"@type": "WebSite",
"name": "Riksdagsmonitor",
"url": "https://riksdagsmonitor.com"
},
"mainEntityOfPage": {
"@type": "WebPage",
"@id": "https://riksdagsmonitor.com/news/${slug}"
}${tags.length > 0 ? `,
"mentions": [${tags.map(tag => `
{
"@type": "Thing",
"name": "${escapeHtml(tag)}"
}`).join(',')}
]` : ''}
}
</script>
<!-- BreadcrumbList structured data -->
<script type="application/ld+json">
{
"@context": "https://schema.org",
"@type": "BreadcrumbList",
"itemListElement": [
{
"@type": "ListItem",
"position": 1,
"name": "${getBreadcrumbName(lang, 'home')}",
"item": "https://riksdagsmonitor.com/"
},
{
"@type": "ListItem",
"position": 2,
"name": "${getBreadcrumbName(lang, 'news')}",
"item": "https://riksdagsmonitor.com/news/index.html"
},
{
"@type": "ListItem",
"position": 3,
"name": "${escapeHtml(title).substring(0, 50)}",
"item": "https://riksdagsmonitor.com/news/${slug}"
}
]
}
</script>
<!-- Organization structured data -->
<script type="application/ld+json">
{
"@context": "https://schema.org",
"@type": "Organization",
"name": "Riksdagsmonitor",
"url": "https://riksdagsmonitor.com",
"logo": "https://riksdagsmonitor.com/images/android-chrome-512x512.png",
"description": "${CONTENT_LABELS[lang]?.siteDescription ?? CONTENT_LABELS.en.siteDescription}",
"foundingDate": "2020",
"founder": {
"@type": "Person",
"name": "James Pether Sörling"
},
"sameAs": [
"https://github.com/Hack23/riksdagsmonitor"
],
"contactPoint": {
"@type": "ContactPoint",
"contactType": "Technical Support",
"url": "https://github.com/Hack23/riksdagsmonitor/issues"
}
}
</script>
</head>
<body>
<a href="#main-content" class="skip-link">${getFooterLabel(lang, 'skipToContent')}</a>
<button id="theme-toggle" class="theme-toggle-btn" type="button"
aria-pressed="false"
aria-label="${getFooterLabel(lang, 'themeToDark')}"
title="${getFooterLabel(lang, 'themeToDark')}"
data-label-dark="${getFooterLabel(lang, 'themeToLight')}"
data-label-light="${getFooterLabel(lang, 'themeToDark')}">
<span class="theme-icon" aria-hidden="true">🌙</span>
</button>
${generateArticleLanguageSwitcher(baseSlug, lang)}
<div class="article-top-nav">
<a href="${getNewsIndexFilename(ALL_LANG_CODES.includes(lang as Language) ? lang : 'en')}" class="back-to-news">
\u2190 ${getFooterLabel(lang, 'backToNews')}
</a>
</div>
<article id="main-content" class="news-article${articleTypeClass}">
<header class="article-header">
<div class="hero-banner">
<img src="../images/riksdagsmonitornews-banner.webp" alt="" class="hero-banner-bg" width="1536" height="1024" loading="eager" aria-hidden="true">
</div>
<div class="hero-header-text">
<h1>${escapeHtml(title)}</h1>
<div class="site-tagline">${SITE_TAGLINE[lang] || SITE_TAGLINE.en}</div>
</div>
<a href="${getNewsIndexFilename(ALL_LANG_CODES.includes(lang as Language) ? lang : 'en')}" aria-label="Riksdagsmonitor News">
<img src="../images/riksdagsmonitornews-logo.webp" alt="Riksdagsmonitor News" class="article-site-logo" width="100" height="100" loading="eager">
</a>
<div class="article-meta">
<time datetime="${isoDate}">${formattedDate}</time>
<span class="separator">•</span>
<span class="type-badge">${typeLabel}</span>
<span class="separator">•</span>
<span>${readTime}</span>
</div>
</header>
${events.length > 0 ? generateEventCalendar(events as ReadonlyArray<EventGridItem>, lang) : ''}
<div class="article-content prose">
<p class="lede">
${escapeHtml(subtitle)}
</p>
${fixedContent}
${watchPoints.length > 0 ? generateWatchSection(watchPoints as ReadonlyArray<WatchPoint>, lang) : ''}
${(sections as TemplateSection[]).length > 0 ? (sections as TemplateSection[]).map(s => `<div id="${escapeHtml(s.id)}" class="${escapeHtml(s.className ?? 'article-section')}">${s.html}</div>`).join('\n') : ''}
</div>
<footer class="article-footer">
<div class="article-sources">
<h3>${getFooterLabel(lang, 'sourcesTitle')}</h3>
<p><strong>${getFooterLabel(lang, 'dataSources')}:</strong> ${sources.join(', ')}</p>
<p><strong>${getFooterLabel(lang, 'generatedBy')}:</strong> ${getFooterLabel(lang, 'generatedByValue')}</p>
<p><strong>${getFooterLabel(lang, 'analysisTools')}:</strong> ${getFooterLabel(lang, 'analysisToolsValue')}</p>
</div>
<div class="article-nav">
<a href="${getNewsIndexFilename(ALL_LANG_CODES.includes(lang as Language) ? lang : 'en')}" class="back-to-news">
\u2190 ${getFooterLabel(lang, 'backToNews')}
</a>
</div>
</footer>
</article>
${generateSiteFooter(lang)}
<script type="module" src="../scripts/back-to-top.ts"></script>
<script src="../js/theme-toggle.js"></script>
</body>
</html>`;
}
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