/**
 * @file Abstract base scorer class providing common functionality
 * All scorers extend this class for consistent behavior
 */
import type { JsonObject, ScoreResult, Scorer, ScorerConfig, ScorerInput, ScorerMetadata, ScoreScale } from "../../types/index.js";
/**
 * Default score scale (0-10)
 */
export declare const DEFAULT_SCORE_SCALE: ScoreScale;
/**
 * Default scorer configuration
 */
export declare const DEFAULT_SCORER_CONFIG: ScorerConfig;
/**
 * Abstract base class for all scorers
 * Provides common functionality and enforces interface compliance
 */
export declare abstract class BaseScorer implements Scorer {
    protected _config: ScorerConfig;
    protected _metadata: ScorerMetadata;
    constructor(metadata: ScorerMetadata, config?: ScorerConfig);
    /**
     * Get scorer metadata
     */
    get metadata(): ScorerMetadata;
    /**
     * Get current configuration
     */
    get config(): ScorerConfig;
    /**
     * Main scoring method - must be implemented by subclasses
     */
    abstract score(input: ScorerInput): Promise<ScoreResult>;
    /**
     * Validate input has required fields
     */
    validateInput(input: ScorerInput): {
        valid: boolean;
        errors: string[];
    };
    /**
     * Update configuration
     */
    configure(config: Partial<ScorerConfig>): void;
    /**
     * Normalize a score to 0-1 scale
     */
    protected normalizeScore(score: number, scale?: ScoreScale): number;
    /**
     * Convert normalized score back to scale
     */
    protected denormalizeScore(normalizedScore: number, scale?: ScoreScale): number;
    /**
     * Check if score passes threshold
     */
    protected checkThreshold(normalizedScore: number): boolean;
    /**
     * Create a standardized score result
     */
    protected createScoreResult(score: number, reasoning: string, options?: {
        scale?: ScoreScale;
        confidence?: number;
        metadata?: JsonObject;
        error?: string;
    }): ScoreResult;
    /**
     * Create an error score result
     */
    protected createErrorResult(error: Error | string): ScoreResult;
    /**
     * Execute scoring with timing and error handling
     */
    protected executeWithTiming(scoringFn: () => Promise<Omit<ScoreResult, "computeTime">>): Promise<ScoreResult>;
    /**
     * Execute scoring with timeout
     */
    protected executeWithTimeout<T>(fn: () => Promise<T>, timeoutMs: number, operationName: string): Promise<T>;
    /**
     * Execute with retry logic
     */
    protected executeWithRetry<T>(operation: () => Promise<T>, retries?: number): Promise<T>;
}