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class PDFComplianceAnalyzer {
constructor() {
this.fileInput = document.getElementById('file-upload');
this.loadingElement = document.getElementById('loading');
this.resultsContainer = document.getElementById('analysis-results');
this.reportContainer = document.getElementById('compliance-report');
this.reportContent = document.querySelector('.report-content');
this.initializeEventListeners();
}
initializeEventListeners() {
this.fileInput.addEventListener('change', (e) => this.handleFileChange(e));
this.setupDragAndDrop();
}
setupDragAndDrop() {
const uploadArea = document.querySelector('.upload-area');
['dragenter', 'dragover'].forEach(eventName => {
uploadArea.addEventListener(eventName, (e) => {
e.preventDefault();
uploadArea.classList.add('drag-over');
});
});
['dragleave', 'drop'].forEach(eventName => {
uploadArea.addEventListener(eventName, (e) => {
e.preventDefault();
uploadArea.classList.remove('drag-over');
});
});
uploadArea.addEventListener('drop', (e) => {
const files = Array.from(e.dataTransfer.files);
if (files.length > 0 && files[0].type === 'application/pdf') {
this.analyzePDF(files[0]);
} else {
this.showError('Por favor, envie apenas arquivos PDF.');
}
});
}
handleFileChange(e) {
const file = e.target.files[0];
if (file && file.type === 'application/pdf') {
this.analyzePDF(file);
} else {
this.showError('Por favor, selecione um arquivo PDF válido.');
}
}
async analyzePDF(file) {
this.showLoading(true);
this.clearResults();
try {
// Simulação da análise do PDF
await this.validatePDF(file);
const report = await this.generateComplianceReport(file);
this.displayResults(report);
} catch (error) {
this.showError(error.message);
} finally {
this.showLoading(false);
}
}
async validatePDF(file) {
return new Promise((resolve, reject) => {
const reader = new FileReader();
reader.onload = (e) => {
const content = new Uint8Array(e.target.result);
const header = content.slice(0, 4);
const isPDF = String.fromCharCode(...header) === '%PDF';
if (!isPDF) {
reject(new Error('O arquivo não é um PDF válido.'));
}
resolve(true);
};
reader.onerror = () => reject(new Error('Erro ao ler o arquivo.'));
reader.readAsArrayBuffer(file);
});
}
async generateComplianceReport(file) {
// Simulação de análise de conformidade
await new Promise(resolve => setTimeout(resolve, 1500));
return {
status: 'compliant',
confidence: 92.5,
details: {
format: 'Válido',
version: 'PDF 1.7',
pages: 1,
signature: 'Presente e válida',
metadata: 'Completo',
accessibility: 'Conforme'
},
checks: [
{ name: 'Estrutura do documento', status: 'pass', score: 100 },
{ name: 'Metadados', status: 'pass', score: 95 },
{ name: 'Assinatura digital', status: 'pass', score: 100 },
{ name: 'Acessibilidade', status: 'pass', score: 85 }
]
};
}
displayResults(report) {
this.reportContainer.classList.remove('hidden');
const statusClass = report.status === 'compliant' ? 'alert-success' : 'alert-error';
const statusText = report.status === 'compliant' ? 'Conforme' : 'Não conforme';
this.reportContent.innerHTML = `
<div class="alert ${statusClass}">
<h3>Status: ${statusText}</h3>
<p>Nível de confiança: ${report.confidence}%</p>
</div>
<div class="report-section">
<h3>Detalhes do Documento</h3>
${Object.entries(report.details).map(([key, value]) => `
<div class="metric">
<span>${key}:</span>
<span>${value}</span>
</div>
`).join('')}
</div>
<div class="report-section">
<h3>Verificações de Conformidade</h3>
${report.checks.map(check => `
<div class="metric">
<span>${check.name}</span>
<span>${check.score}% - ${check.status === 'pass' ? 'Aprovado' : 'Reprovado'}</span>
</div>
`).join('')}
</div>
`;
}
showError(message) {
this.resultsContainer.innerHTML = `
<div class="alert alert-error">
<p>${message}</p>
</div>
`;
}
showLoading(show) {
if (show) {
this.loadingElement.classList.remove('hidden');
} else {
this.loadingElement.classList.add('hidden');
}
}
clearResults() {
this.resultsContainer.innerHTML = '';
this.reportContainer.classList.add('hidden');
this.reportContent.innerHTML = '';
}
}
// Inicialização
document.addEventListener('DOMContentLoaded', () => {
new PDFComplianceAnalyzer();
}); |