import { ModelPricing, PricingConfig } from '../config/types.js';
export interface CostCalculation {
    inputCost: number;
    outputCost: number;
    totalCost: number;
}
/**
 * PricingService manages token pricing data.
 *
 * It merges hardcoded default pricing with optional user config overrides.
 * User overrides take precedence over defaults.
 */
export declare class PricingService {
    private pricing;
    constructor(configPricing?: PricingConfig);
    /**
     * Deep merge pricing configs. Overrides take precedence.
     */
    private mergePricing;
    /**
     * Resolve provider name, checking for aliases.
     * First checks if provider exists directly, then checks aliases.
     */
    private resolveProvider;
    /**
     * Get pricing for a specific provider and model.
     * Returns undefined if pricing is not configured.
     * Supports provider aliases.
     */
    getPricing(provider: string, model: string): ModelPricing | undefined;
    /**
     * Calculate the cost for a given number of tokens.
     * Returns null if pricing is not configured for the provider/model.
     */
    calculateCost(provider: string, model: string, promptTokens: number, completionTokens: number): CostCalculation | null;
    /**
     * Check if pricing is configured for a provider/model combination.
     * Supports provider aliases.
     */
    hasPricingFor(provider: string, model: string): boolean;
    /**
     * Get all pricing data (for debugging/display).
     * Returns a deep copy to prevent external mutation.
     */
    getAllPricing(): PricingConfig;
    /**
     * Get list of all configured providers.
     */
    getProviders(): string[];
    /**
     * Get list of all models for a provider.
     * Supports provider aliases.
     */
    getModelsForProvider(provider: string): string[];
}
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