import { KenmonError, KenmonIdentifier, KenmonMailer, KenmonReturnType } from "kenmon";

//#region src/index.d.ts
type KenmonEmailOTPErrorReason = 'not-found' | 'expired' | 'invalid-code' | 'already-used' | 'email-mismatch';
interface KenmonEmailOTP {
  id: string;
  email: string;
  code: string;
  signature: string;
  expiresAt: Date;
  used: boolean;
}
declare class KenmonEmailOTPError extends KenmonError {
  readonly reason: KenmonEmailOTPErrorReason;
  constructor(reason: KenmonEmailOTPErrorReason);
}
interface KenmonEmailOTPStorage {
  createOTP(email: string, code: string, expiresAt: Date, signature: string): Promise<KenmonEmailOTP>;
  getOTPById(id: string): Promise<KenmonEmailOTP | null>;
  markOTPAsUsed(id: string): Promise<void>;
}
interface KenmonEmailOTPProviderConfig {
  mailer: KenmonMailer;
  otpStorage: KenmonEmailOTPStorage;
  otpTtl?: number;
  otpLength?: number;
  emailFrom: string;
  emailSubject?: (code: string, signature: string, otpTtl: number) => string;
  emailTextContent?: (code: string, signature: string, otpTtl: number) => string;
  emailHtmlContent?: (code: string, signature: string, otpTtl: number) => string;
}
declare class KenmonEmailOTPAuthenticator {
  readonly type = "email-otp";
  private mailer;
  private otpStorage;
  private otpTtl;
  private otpLength;
  private emailFrom;
  private emailSubject;
  private emailTextContent;
  private emailHtmlContent;
  constructor(config: KenmonEmailOTPProviderConfig);
  sendOTP(email: string): Promise<KenmonReturnType<{
    otpId: string;
    signature: string;
  }>>;
  verifyOTP(payload: {
    email: string;
    otpId: string;
    code: string;
  }): Promise<KenmonReturnType<KenmonIdentifier>>;
  private generateOTPCode;
}
//#endregion
export { KenmonEmailOTP, KenmonEmailOTPAuthenticator, KenmonEmailOTPError, KenmonEmailOTPErrorReason, KenmonEmailOTPProviderConfig, KenmonEmailOTPStorage };
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