/**
* Breaking News Detector - Identifies urgent and breaking news articles
*/
export interface BreakingNewsResult {
isBreaking: boolean;
score: number;
reasons: string[];
}
export class BreakingNewsDetector {
// Breaking news keywords in multiple languages
private static readonly BREAKING_KEYWORDS = {
english: ['breaking', 'urgent', 'alert', 'just in', 'developing', 'live', 'emergency', 'critical'],
turkish: ['son dakika', 'acil', 'flaş', 'haber', 'şimdi', 'canlı', 'kritik'],
arabic: ['عاجل', 'خبر عاجل', 'الآن', 'طارئ', 'مباشر', 'هام', 'ضروري', 'عاجل جداً'],
kurdish: ['nûçeyeke lezgîn', 'pêwîst', 'girîng']
};
/**
* Analyze article to detect if it's breaking news
*/
static analyze(title: string, content: string, pubDate: Date): BreakingNewsResult {
const reasons: string[] = [];
let score = 0;
const combinedText = `${title} ${content || ''}`.toLowerCase();
// Check for breaking news keywords in title (higher weight)
const titleLower = title.toLowerCase();
for (const [lang, keywords] of Object.entries(this.BREAKING_KEYWORDS)) {
for (const keyword of keywords) {
if (titleLower.includes(keyword.toLowerCase())) {
score += 10;
reasons.push(`Breaking keyword in title: "${keyword}" (${lang})`);
break; // Only count once per language
}
}
}
// Check for breaking news keywords in content (lower weight)
if (content) {
for (const [lang, keywords] of Object.entries(this.BREAKING_KEYWORDS)) {
for (const keyword of keywords) {
if (combinedText.includes(keyword.toLowerCase()) && !titleLower.includes(keyword.toLowerCase())) {
score += 3;
reasons.push(`Breaking keyword in content: "${keyword}" (${lang})`);
break;
}
}
}
}
// Check for urgency indicators
const urgencyPatterns = [
/\b(just|now|minutes? ago|hours? ago)\b/i,
/\b\d+\s*(minute|hour)s?\s*ago\b/i,
/\b(immediate|instantly|right now)\b/i
];
for (const pattern of urgencyPatterns) {
if (pattern.test(combinedText)) {
score += 5;
reasons.push('Urgency indicator found');
break;
}
}
// Recency bonus - articles published within last hour get higher score
const hoursSincePublish = (Date.now() - pubDate.getTime()) / (1000 * 60 * 60);
if (hoursSincePublish < 1) {
score += 8;
reasons.push('Published within last hour');
} else if (hoursSincePublish < 6) {
score += 4;
reasons.push('Published within last 6 hours');
}
// Exclamation marks (multiple indicates urgency)
const exclamationCount = (title.match(/!/g) || []).length;
if (exclamationCount >= 2) {
score += 3;
reasons.push('Multiple exclamation marks');
}
// ALL CAPS words in title (indicates urgency)
const upperCaseWords = title.match(/\b[A-Z]{2,}\b/g) || [];
if (upperCaseWords.length >= 2) {
score += 4;
reasons.push('Multiple uppercase words in title');
}
// Determine if breaking based on score threshold
const isBreaking = score >= 10;
return {
isBreaking,
score,
reasons: reasons.slice(0, 5) // Limit to top 5 reasons
};
}
/**
* Get priority level based on breaking score
*/
static getPriorityLevel(score: number): 'critical' | 'high' | 'medium' | 'low' {
if (score >= 25) return 'critical';
if (score >= 15) return 'high';
if (score >= 10) return 'medium';
return 'low';
}
}
