import { OidcProvider } from "./OidcProvider";
import { OidcProviderConfig } from "../OidcProviderConfig";
/**
 * Provider registry for managing OIDC provider instances
 *
 * Handles:
 * - Static provider configuration
 * - Dynamic provider loading from database
 * - Provider instance caching
 * - Lazy initialization
 */
export declare class ProviderRegistry {
    private staticProviders;
    private providerInstances;
    private providerLoader?;
    constructor(staticProviders: Record<string, OidcProviderConfig>, providerLoader?: (providerName: string) => Promise<OidcProviderConfig | null>);
    /**
     * Get provider instance by name
     *
     * Looks up provider in the following order:
     * 1. Cached instance
     * 2. Static configuration
     * 3. Dynamic loader (if configured)
     *
     * Providers are lazy-initialized on first use and cached.
     *
     * @param providerName - Provider identifier
     * @returns Initialized OIDC provider instance
     * @throws Error if provider not found or initialization fails
     */
    getProvider(providerName: string): Promise<OidcProvider>;
    /**
     * Check if provider exists in static configuration or can be loaded dynamically
     *
     * @param providerName - Provider identifier
     * @returns true if provider exists, false otherwise
     */
    hasProvider(providerName: string): boolean;
    /**
     * Clear provider cache
     *
     * Forces re-initialization of providers on next access.
     * Useful when provider configurations change.
     *
     * @param providerName - Optional provider to clear (clears all if not specified)
     */
    clearCache(providerName?: string): void;
    /**
     * Get list of configured provider names
     *
     * @returns Array of provider names from static configuration
     */
    getProviderNames(): string[];
}
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