Compliance Automation

class ComplianceMonitor {
  constructor(apiKey, complianceRules) {
    this.apiKey = apiKey;
    this.rules = complianceRules;
    this.baseUrl = 'https://api.taxo.co';
  }

  async runComplianceCheck(rfc, period) {
    const results = {
      compliant: true,
      issues: [],
      documents: []
    };

    // Extract all document types for the period
    const documentTypes = ['INVOICE', 'TAX_STATUS', 'TAX_RETENTION'];
    
    for (const type of documentTypes) {
      const extraction = await this.extractDocuments(rfc, type, period);
      const validation = await this.validateExtraction(extraction, type);
      
      results.documents.push(...validation.documents);
      results.issues.push(...validation.issues);
      
      if (validation.issues.length > 0) {
        results.compliant = false;
      }
    }

    return results;
  }

  async extractDocuments(rfc, informationType, period) {
    const response = await fetch(`${this.baseUrl}/v1/extractions`, {
      method: 'POST',
      headers: {
        'Authorization': `Bearer ${this.apiKey}`,
        'Content-Type': 'application/json'
      },
      body: JSON.stringify({
        subject: { identifier: rfc },
        credentials: {
          SAT: {
            type: 'USERNAME_PASSWORD',
            username: rfc,
            password: process.env.CIEC_PASSWORD
          }
        },
        options: {
          informationType,
          period
        }
      })
    });

    return response.json();
  }

  async validateExtraction(extraction, documentType) {
    const validation = {
      documents: [],
      issues: []
    };

    // Wait for extraction to complete
    const completed = await this.waitForCompletion(extraction.publicId);
    
    if (completed.status === 'COMPLETED') {
      validation.documents = completed.documents || [];
      
      // Run compliance validations
      const completenessCheck = this.checkCompleteness(completed, documentType);
      const integrityCheck = await this.checkDataIntegrity(completed);
      
      validation.issues.push(...completenessCheck.issues);
      validation.issues.push(...integrityCheck.issues);
    } else {
      validation.issues.push({
        type: 'EXTRACTION_FAILED',
        message: `Failed to extract ${documentType} documents`,
        severity: 'HIGH'
      });
    }

    return validation;
  }

  checkCompleteness(extraction, documentType) {
    const issues = [];
    const rule = this.rules[documentType];
    
    if (!rule) return { issues };

    // Check minimum document count
    if (extraction.completedCount < rule.minimumCount) {
      issues.push({
        type: 'INSUFFICIENT_DOCUMENTS',
        message: `Expected at least ${rule.minimumCount} ${documentType} documents, found ${extraction.completedCount}`,
        severity: 'MEDIUM'
      });
    }

    // Check for document gaps
    if (extraction.failedCount > rule.maxFailures) {
      issues.push({
        type: 'HIGH_FAILURE_RATE',
        message: `Too many failed documents: ${extraction.failedCount}`,
        severity: 'HIGH'
      });
    }

    return { issues };
  }

  async checkDataIntegrity(extraction) {
    const issues = [];
    
    // Download and validate sample documents
    const sampleSize = Math.min(5, extraction.completedCount);
    
    for (let i = 0; i < sampleSize; i++) {
      try {
        const document = extraction.documents[i];
        const xmlData = await this.downloadDocument(extraction.publicId, document.id);
        const validation = this.validateDocumentStructure(xmlData);
        
        if (!validation.valid) {
          issues.push({
            type: 'INVALID_DOCUMENT_STRUCTURE',
            message: `Document ${document.id} has structural issues: ${validation.errors.join(', ')}`,
            severity: 'MEDIUM'
          });
        }
      } catch (error) {
        issues.push({
          type: 'DOCUMENT_ACCESS_ERROR',
          message: `Cannot access document for validation: ${error.message}`,
          severity: 'LOW'
        });
      }
    }

    return { issues };
  }

  generateComplianceReport(results) {
    return {
      timestamp: new Date().toISOString(),
      status: results.compliant ? 'COMPLIANT' : 'NON_COMPLIANT',
      summary: {
        totalDocuments: results.documents.length,
        totalIssues: results.issues.length,
        highSeverityIssues: results.issues.filter(i => i.severity === 'HIGH').length
      },
      issues: results.issues,
      recommendations: this.generateRecommendations(results.issues)
    };
  }
}