/**
 * Base embedding provider interface
 */
import type { Embedding, BatchEmbeddingResult, ProviderConfig, ProviderHealth, EmbeddingOptions } from './types.js';
/**
 * Base interface for embedding providers
 */
export interface EmbeddingProvider {
    /**
     * Provider name
     */
    readonly name: string;
    /**
     * Get default model name
     */
    readonly defaultModel: string;
    /**
     * Get default dimensions
     */
    readonly defaultDimensions: number;
    /**
     * Generate embedding for a single text
     */
    embed(_text: string, _options?: EmbeddingOptions): Promise<Embedding>;
    /**
     * Generate embeddings for multiple texts
     */
    embedBatch(_texts: string[], _options?: EmbeddingOptions): Promise<BatchEmbeddingResult>;
    /**
     * Check provider health and availability
     */
    healthCheck(): Promise<ProviderHealth>;
    /**
     * Get provider configuration
     */
    getConfig(): ProviderConfig;
    /**
     * Update provider configuration
     */
    updateConfig(_config: Partial<ProviderConfig>): void;
}
/**
 * Abstract base class for embedding providers
 */
export declare abstract class BaseEmbeddingProvider implements EmbeddingProvider {
    abstract readonly name: string;
    abstract readonly defaultModel: string;
    abstract readonly defaultDimensions: number;
    protected config: ProviderConfig;
    constructor(config: ProviderConfig);
    abstract embed(_text: string, _options?: EmbeddingOptions): Promise<Embedding>;
    abstract embedBatch(_texts: string[], _options?: EmbeddingOptions): Promise<BatchEmbeddingResult>;
    abstract healthCheck(): Promise<ProviderHealth>;
    getConfig(): ProviderConfig;
    updateConfig(_config: Partial<ProviderConfig>): void;
    /**
     * Validate text before embedding
     */
    protected validateText(text: string): void;
    /**
     * Validate texts array
     */
    protected validateTexts(texts: string[]): void;
    /**
     * Clean text for embedding
     */
    protected cleanText(text: string): string;
    /**
     * Truncate text to maximum length
     */
    protected truncateText(text: string, maxLength: number): string;
    /**
     * Get model to use for embedding
     */
    protected getModel(options?: EmbeddingOptions): string;
    /**
     * Get dimensions to use for embedding
     */
    protected getDimensions(options?: EmbeddingOptions): number;
}
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