/**
 * Duplication Detection Service
 * SOLID Principles: Single Responsibility - Handle duplication detection algorithms only
 */
import { IDuplicationDetectionService, CodeBlock, DuplicationGroup } from '../interfaces/index';
export declare class DuplicationDetectionService implements IDuplicationDetectionService {
    private logger;
    findExactDuplicates(codeBlocks: CodeBlock[]): DuplicationGroup[];
    findStructuralDuplicates(codeBlocks: CodeBlock[], threshold: number): DuplicationGroup[];
    findSemanticDuplicates(codeBlocks: CodeBlock[], threshold: number): Promise<DuplicationGroup[]>;
    findRenamedDuplicates(codeBlocks: CodeBlock[], threshold: number): DuplicationGroup[];
    private createDuplicationGroup;
    private generateStructuralKey;
    private calculateStructuralSimilarity;
    private compareStructuralFingerprints;
    private calculateSemanticSimilarity;
    private calculateTokenSimilarity;
    private calculateContentSimilarity;
    private calculateASTSimilarity;
    private calculateAverageSemanticSimilarity;
    private normalizeIdentifiers;
    private hasActualDifferences;
    private calculateRenamedSimilarity;
    private calculateComplexity;
    private levenshteinDistance;
}
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