import React, { useState, useEffect } from 'react'; import { AlertTriangle, FileText, Activity, Search, BookOpen, Scale } from 'lucide-react'; // --- Components --- const Panel = ({ title, children, className = "", noPadding = false }) => ( ); const Gauge = ({ score }) => { // Calculate rotation for semi-circle gauge (0 to 180 degrees) // Score 0 = 0deg, Score 100 = 180deg const rotation = (score / 100) * 180; let colorClass = "text-emerald-500"; if (score > 40) colorClass = "text-amber-500"; if (score > 70) colorClass = "text-rose-600"; return ( ); }; const App = () => { const [text, setText] = useState('The rapid advancement of artificial intelligence represents a pivotal moment in human history. By leveraging sophisticated algorithms, we can unlock unprecedented potential across various sectors. Moreover, the integration of these technologies fosters a landscape of innovation that is both comprehensive and transformative. It is crucial that we delve deeper into the nuances of this paradigm shift.'); const [isAnalyzing, setIsAnalyzing] = useState(false); const [result, setResult] = useState(null); // --- Analysis Logic (Same robust heuristic engine) --- const aiTriggerWords = [ 'delve', 'realm', 'tapestry', 'landscape', 'moreover', 'furthermore', 'essential', 'crucial', 'leveraging', 'harnessing', 'nuance', 'comprehensive', 'foster', 'underscore', 'pivotal', 'intricate', 'testament', 'demystify', 'revolutionize', 'paradigm', 'unleash', 'unlock', 'embark', 'symbiotic', 'ever-evolving', 'multifaceted', 'game-changer' ]; const analyzeText = () => { if (!text.trim()) return; setIsAnalyzing(true); setResult(null); setTimeout(() => { const sentences = text.match(/[^.!?]+[.!?]+/g) || [text]; const wordCount = text.split(/\s+/).length; let aiScore = 0; let reasons = []; let flaggedSentences = []; // 1. Vocabulary Analysis const foundTriggers = aiTriggerWords.filter(word => text.toLowerCase().includes(word)); if (foundTriggers.length > 0) { aiScore += Math.min(foundTriggers.length * 6, 35); reasons.push({ title: "Anomalous Vocabulary Clustering", desc: `Detected high frequency of LLM-favored terms: "${foundTriggers.slice(0, 3).join(", ")}...".` }); } // 2. Syntactic Uniformity (Burstiness) const sentenceLengths = sentences.map(s => s.split(/\s+/).length); const avgLength = sentenceLengths.reduce((a, b) => a + b, 0) / sentenceLengths.length; const variance = sentenceLengths.reduce((a, b) => a + Math.pow(b - avgLength, 2), 0) / sentenceLengths.length; const stdDev = Math.sqrt(variance); if (stdDev < 6 && sentenceLengths.length > 3) { aiScore += 30; reasons.push({ title: "Syntactic Uniformity Detected", desc: "Sentence length variance is statistically low, indicating artificial rhythm." }); } // 3. Sentence-Level Scoring sentences.forEach((sentence, index) => { const len = sentence.split(/\s+/).length; let sentenceRisk = 0; if (len > 15 && len < 35) sentenceRisk += 10; // "Safe" length const hasTrigger = aiTriggerWords.some(w => sentence.toLowerCase().includes(w)); if (hasTrigger) sentenceRisk += 25; if (sentenceRisk > 20) flaggedSentences.push(index); }); // 4. Human Noise Check const hasHumanQuirks = /[a-z] [i] [a-z]/.test(text) || text.includes('!!') || text.includes('..'); if (hasHumanQuirks) { aiScore -= 25; reasons.push({ title: "Human Syntax Artifacts", desc: "Informal typing patterns or irregularities suggest human origin." }); } // 5. Lexical Diversity (Type-Token Ratio approximation) const uniqueWords = new Set(text.toLowerCase().split(/\s+/)).size; const ttr = uniqueWords / wordCount; if (ttr > 0.8 && wordCount > 50) { // High diversity can sometimes be human, but extremely high precision can be AI // Neutral factor for now, but added to display } aiScore = Math.max(0, Math.min(99, aiScore + 15)); // Baseline bias let verdictText; if (aiScore > 65) { verdictText = "AI PATTERNS FOUND"; } else if (aiScore > 35) { verdictText = "INCONCLUSIVE / MIXED PATTERNS"; } else { verdictText = "HUMAN PATTERNS DOMINANT"; } setResult({ score: Math.round(aiScore), verdict: verdictText, reasons, stats: { words: wordCount, sentences: sentences.length, avgLen: Math.round(avgLength), ttr: ttr.toFixed(2) }, flaggedIndices: flaggedSentences, sentences }); setIsAnalyzing(false); }, 2000); }; useEffect(() => { // Auto-analyze initial text analyzeText(); }, []); return ( ); }; export default App;