import type { ProviderInterface, SocialUser } from './types';
export declare interface ProviderConfig {
  clientId: string
  clientSecret: string
  redirectUrl: string
  guzzle?: Record<string, any>
}
export declare abstract class AbstractProvider implements ProviderInterface {
  protected clientId: string;
  protected clientSecret: string;
  protected redirectUrl: string;
  protected parameters: Record<string, any>;
  protected _scopes: string[];
  protected scopeSeparator: string;
  protected _stateless: boolean;
  protected _usesPKCE: boolean;
  protected _state: string | null;
  protected user: SocialUser | null;
  constructor(config: ProviderConfig);
  abstract getAuthUrl(): Promise<string>;
  protected abstract getTokenUrl(): string;
  abstract getAccessToken(code: string): Promise<string>;
  abstract getUserByToken(token: string): Promise<SocialUser>;
  protected getCodeFields(state?: string | null): Record<string, any>;
  protected formatScopes(scopes: string[], scopeSeparator: string): string;
  userFromToken(token: string): Promise<SocialUser>;
  scopes(scopes: string | string[]): this;
  setScopes(scopes: string | string[]): this;
  getScopes(): string[];
  setRedirectUrl(url: string): this;
  withState(state: string): this;
  protected resolveState(): string;
  protected usesState(): boolean;
  validateState(expected: string | null | undefined, actual: string | null | undefined): boolean;
  protected isStateless(): boolean;
  stateless(): this;
  protected getState(): string;
  protected usesPKCE(): boolean;
  enablePKCE(): this;
  protected getCodeVerifier(): string;
  protected getCodeChallenge(): Promise<string>;
  protected getCodeChallengeMethod(): string;
  with(parameters: Record<string, any>): this;
  protected buildAuthUrlFromBase(url: string, state: string | null): string;
}