66 lines
1.6 KiB
TypeScript
66 lines
1.6 KiB
TypeScript
export default function extractMainTopic(summary: string): string {
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const firstParaMatch = summary.match(/<p>(.*?)<\/p>/);
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if (!firstParaMatch) return 'tech updates';
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const firstPara = firstParaMatch[1];
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const cleanText = firstPara
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.replace(/<[^>]*>/g, '')
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.replace(/\s+/g, ' ')
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.replace(/[,.]+/g, ' ')
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.trim();
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const techAreas = [
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{
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name: 'AI',
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pattern: /\b(AI|artificial intelligence|machine learning|ML|GPT|LLM)\b/i,
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preserveCase: true
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},
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{
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name: 'security',
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pattern: /\b(security|cyber|hack|privacy|breach)\b/i
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},
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{
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name: 'Web3',
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pattern: /\b(blockchain|crypto|web3|NFT|token|ethereum|bitcoin)\b/i,
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preserveCase: true
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},
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{
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name: 'cloud',
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pattern: /\b(cloud|AWS|Azure|serverless|containerization|kubernetes)\b/i
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},
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{
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name: 'mobile',
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pattern: /\b(mobile|iOS|Android|app|smartphone)\b/i
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},
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{
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name: 'development',
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pattern: /\b(developer|programming|code|software|development)\b/i
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}
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];
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for (const area of techAreas) {
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if (area.pattern.test(cleanText)) {
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return area.preserveCase ? area.name : area.name.toLowerCase();
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}
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}
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const words = cleanText
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.split(' ')
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.filter(
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word =>
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word.length > 2 &&
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!/^(and|the|in|of|at|by|for)$/i.test(word) &&
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!/[,.]/.test(word)
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)
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.slice(0, 2)
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.join(' ');
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const topic = words.toLowerCase() || 'tech updates';
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const titleSuffix =
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topic === 'tech updates' ? topic : `tech: ${topic} in focus`;
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return `Today in ${titleSuffix}`;
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}
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