/**
 * Report Generator
 *
 * Generates compliance reports for auditors.
 * Supports multiple formats: JSON, CSV, PDF-ready HTML.
 *
 * Added by Pantheon Security for enterprise compliance support.
 */
/**
 * Report types
 */
export type ReportType = "compliance_summary" | "gdpr_audit" | "soc2_audit" | "cssf_audit" | "security_audit" | "incident_report" | "dsar_report" | "retention_report" | "change_management" | "full_audit";
/**
 * Report format
 */
export type ReportFormat = "json" | "csv" | "html";
/**
 * Report metadata
 */
interface ReportMetadata {
    report_id: string;
    report_type: ReportType;
    format: ReportFormat;
    generated_at: string;
    generated_by: string;
    period: {
        from: string;
        to: string;
    };
    checksum: string;
}
/**
 * Generated report
 */
export interface GeneratedReport {
    metadata: ReportMetadata;
    content: string;
    file_path?: string;
}
/**
 * Report options
 */
export interface ReportOptions {
    from?: Date;
    to?: Date;
    format?: ReportFormat;
    includeRawData?: boolean;
    saveToDisk?: boolean;
    outputDir?: string;
}
/**
 * Report Generator class
 */
export declare class ReportGenerator {
    private static instance;
    private reportsDir;
    private constructor();
    /**
     * Get singleton instance
     */
    static getInstance(): ReportGenerator;
    /**
     * Generate a report
     */
    generateReport(reportType: ReportType, options?: ReportOptions): Promise<GeneratedReport>;
    /**
     * Generate compliance summary report
     */
    private generateComplianceSummary;
    /**
     * Generate GDPR audit report
     */
    private generateGDPRAudit;
    /**
     * Generate SOC2 audit report
     */
    private generateSOC2Audit;
    /**
     * Generate CSSF audit report
     */
    private generateCSSFAudit;
    /**
     * Generate security audit report
     */
    private generateSecurityAudit;
    /**
     * Generate incident report
     */
    private generateIncidentReport;
    /**
     * Generate DSAR report
     */
    private generateDSARReport;
    /**
     * Generate retention report
     */
    private generateRetentionReport;
    /**
     * Generate change management report
     */
    private generateChangeManagementReport;
    /**
     * Generate full audit report
     */
    private generateFullAudit;
    /**
     * Generate recommendations based on dashboard data
     */
    private generateRecommendations;
    /**
     * Format output based on format type
     */
    private formatOutput;
    /**
     * Convert to CSV format (flattened)
     */
    private toCSV;
    /**
     * Quote a CSV cell and neutralize formula injection.
     * If the value begins with =, +, -, @, tab, or CR it is prefixed with a
     * single quote so spreadsheet apps (Excel/Sheets) treat it as text rather
     * than a formula. Embedded double-quotes are doubled per RFC 4180.
     */
    private csvSafeCell;
    /**
     * Flatten nested object
     */
    private flattenObject;
    /**
     * Convert to HTML format
     */
    private toHTML;
    /**
     * Convert object to HTML recursively
     */
    private objectToHTML;
    /**
     * Convert array to HTML table
     */
    private arrayToTable;
    /**
     * Get CSS class for status values
     */
    private getStatusClass;
    /**
     * Escape HTML special characters
     */
    private escapeHTML;
    /**
     * List available reports
     */
    listGeneratedReports(): Array<{
        file: string;
        type: string;
        generated: string;
    }>;
}
/**
 * Get the report generator instance
 */
export declare function getReportGenerator(): ReportGenerator;
/**
 * Generate a compliance report
 */
export declare function generateReport(reportType: ReportType, options?: ReportOptions): Promise<GeneratedReport>;
/**
 * Generate and save a report
 */
export declare function generateAndSaveReport(reportType: ReportType, options?: Omit<ReportOptions, "saveToDisk">): Promise<GeneratedReport>;
/**
 * List generated reports
 */
export declare function listReports(): ReturnType<ReportGenerator["listGeneratedReports"]>;
export {};