import { BaseSocialLogin } from './base';
import type { AuthorizationCode, LoginResult, OAuth2LoginOptions, OAuth2LoginResponse, OAuth2ProviderConfig, ProviderResponseMap } from './definitions';
/**
 * OAuth2 Social Login Manager
 * Supports multiple OAuth2 provider configurations
 */
export declare class OAuth2SocialLogin extends BaseSocialLogin {
    private providers;
    private readonly TOKENS_KEY_PREFIX;
    private readonly STATE_PREFIX;
    private readonly CONFIG_KEY_PREFIX;
    constructor();
    private normalizeScopeValue;
    private normalizeConfig;
    private ensureDiscovered;
    /**
     * Initialize multiple OAuth2 providers
     */
    initializeProviders(configs: Record<string, OAuth2ProviderConfig>): Promise<void>;
    private normalizeStoredConfig;
    private getProvider;
    private getTokensKey;
    private getConfigKey;
    private persistConfiguration;
    private restoreConfigurationsFromStorage;
    login<T extends 'oauth2'>(options: OAuth2LoginOptions): Promise<{
        provider: T;
        result: ProviderResponseMap[T];
    }>;
    logout(providerId: string): Promise<void>;
    isLoggedIn(providerId: string): Promise<{
        isLoggedIn: boolean;
    }>;
    getAuthorizationCode(providerId: string): Promise<AuthorizationCode>;
    refresh(providerId: string): Promise<void>;
    refreshToken(providerId: string, refreshToken?: string, additionalParameters?: Record<string, string>): Promise<OAuth2LoginResponse>;
    handleOAuthRedirect(url: URL, expectedState?: string): Promise<LoginResult | {
        error: string;
    } | null>;
    private exchangeAuthorizationCode;
    private refreshWithRefreshToken;
    private fetchResource;
    private persistTokens;
    private getStoredTokens;
    private persistPendingLogin;
    private consumePendingLogin;
    private generateState;
    private generateCodeVerifier;
    private generateCodeChallenge;
    private base64UrlEncode;
    decodeIdToken(idToken: string): Record<string, any>;
    getAccessTokenExpirationDate(providerId: string): {
        expirationDate: string | null;
    };
    isAccessTokenAvailable(providerId: string): {
        isAvailable: boolean;
    };
    isAccessTokenExpired(providerId: string): {
        isExpired: boolean;
    };
    isRefreshTokenAvailable(providerId: string): {
        isAvailable: boolean;
    };
}