export interface InitOptions {
  api_key: string;
  app_id: string; // human-readable string id
}

export interface SessionStatusResponse {
  token: string;
  status: 'pending' | 'verified' | 'revoked' | 'expired';
  phone: string;
  timestamp: number;
  ttl: number;
  verified_via?: 'whatsapp' | 'reverse_sms' | 'oneid' | 'passkey';
  device_trust_score?: number;
}

export interface ApprovalVerifyResponse {
  valid: boolean;
  session_token?: string;
  action?: string;
  approved_at?: string;
}

export declare class RauthApiClient {
  constructor(config: InitOptions);
  getSessionStatus(sessionToken: string, phone: string): Promise<SessionStatusResponse>;
  verifyApproval(approvalToken: string, phone: string): Promise<ApprovalVerifyResponse>;
}

export declare class SessionStore {
  create(token: string, phone: string, ttlSec?: number): void;
  get(token: string): { phone: string; createdAt: number; ttl: number } | null;
  remove(token: string): void;
  flush(): void;
}

export declare class RevokedStore {
  add(token: string, reason?: string): void;
  has(token: string): boolean;
  flush(): void;
}

export declare const RauthProvider: {
  init(options: InitOptions): void;
  verifySession(sessionToken: string, userPhone: string): Promise<boolean>;
  getSessionStatus(sessionToken: string, userPhone: string): Promise<SessionStatusResponse>;
  isSessionRevoked(sessionToken: string, userPhone: string): Promise<boolean>;
  verifyApproval(approvalToken: string, userPhone: string): Promise<ApprovalVerifyResponse>;
  isVerified(sessionToken: string, userPhone: string): Promise<boolean>;
};