/**
 * Security Score Calculator
 *
 * Calculates a 0-100 security score based on findings severity.
 * Uses a penalty-based diminishing returns formula to prevent negative scores.
 */
export interface FindingCounts {
    critical: number;
    high: number;
    medium: number;
    low: number;
}
export interface SecurityScore {
    score: number;
    grade: string;
    gradeColor: string;
    breakdown: {
        critical: {
            count: number;
            penalty: number;
        };
        high: {
            count: number;
            penalty: number;
        };
        medium: {
            count: number;
            penalty: number;
        };
        low: {
            count: number;
            penalty: number;
        };
        totalPenalty: number;
    };
}
export interface ScoreHistoryEntry {
    id: number;
    target: string;
    auditId: string;
    score: number;
    grade: string;
    critical: number;
    high: number;
    medium: number;
    low: number;
    timestamp: string;
}
export interface ScoreTrend {
    currentScore: number;
    previousScore: number | null;
    change: number;
    direction: 'up' | 'down' | 'same';
    history: Array<{
        timestamp: string;
        score: number;
    }>;
}
/**
 * Calculate security score from finding counts
 */
export declare function calculateSecurityScore(counts: FindingCounts): SecurityScore;
/**
 * Calculate trend from score history
 */
export declare function calculateTrend(history: ScoreHistoryEntry[]): ScoreTrend;
/**
 * Generate SVG badge for security score
 */
export declare function generateScoreBadge(score: number, grade: string, gradeColor: string): string;