import { ReactNode } from "react";
import Link from "next/link";

export enum EPageTypes {
  PUBLIC = "PUBLIC",
  NON_AUTHENTICATED = "NON_AUTHENTICATED",
  SET_PASSWORD = "SET_PASSWORD",
  ONBOARDING = "ONBOARDING",
  AUTHENTICATED = "AUTHENTICATED",
}

export enum EAuthModes {
  SIGN_IN = "SIGN_IN",
  SIGN_UP = "SIGN_UP",
}

export enum EAuthSteps {
  EMAIL = "EMAIL",
  PASSWORD = "PASSWORD",
  UNIQUE_CODE = "UNIQUE_CODE",
}

export enum EErrorAlertType {
  BANNER_ALERT = "BANNER_ALERT",
  INLINE_FIRST_NAME = "INLINE_FIRST_NAME",
  INLINE_EMAIL = "INLINE_EMAIL",
  INLINE_PASSWORD = "INLINE_PASSWORD",
  INLINE_EMAIL_CODE = "INLINE_EMAIL_CODE",
}

export enum EAuthenticationErrorCodes {
  // Admin
  ADMIN_ALREADY_EXIST = "5150",
  REQUIRED_ADMIN_EMAIL_PASSWORD_FIRST_NAME = "5155",
  INVALID_ADMIN_EMAIL = "5160",
  INVALID_ADMIN_PASSWORD = "5165",
  REQUIRED_ADMIN_EMAIL_PASSWORD = "5170",
  ADMIN_AUTHENTICATION_FAILED = "5175",
  ADMIN_USER_ALREADY_EXIST = "5180",
  ADMIN_USER_DOES_NOT_EXIST = "5185",
}

export type TAuthErrorInfo = {
  type: EErrorAlertType;
  code: EAuthenticationErrorCodes;
  title: string;
  message: ReactNode;
};

const errorCodeMessages: {
  [key in EAuthenticationErrorCodes]: { title: string; message: (email?: string | undefined) => ReactNode };
} = {
  // admin
  [EAuthenticationErrorCodes.ADMIN_ALREADY_EXIST]: {
    title: `Admin already exists`,
    message: () => `Admin already exists. Please try again.`,
  },
  [EAuthenticationErrorCodes.REQUIRED_ADMIN_EMAIL_PASSWORD_FIRST_NAME]: {
    title: `Email, password and first name required`,
    message: () => `Email, password and first name required. Please try again.`,
  },
  [EAuthenticationErrorCodes.INVALID_ADMIN_EMAIL]: {
    title: `Invalid admin email`,
    message: () => `Invalid admin email. Please try again.`,
  },
  [EAuthenticationErrorCodes.INVALID_ADMIN_PASSWORD]: {
    title: `Invalid admin password`,
    message: () => `Invalid admin password. Please try again.`,
  },
  [EAuthenticationErrorCodes.REQUIRED_ADMIN_EMAIL_PASSWORD]: {
    title: `Email and password required`,
    message: () => `Email and password required. Please try again.`,
  },
  [EAuthenticationErrorCodes.ADMIN_AUTHENTICATION_FAILED]: {
    title: `Authentication failed`,
    message: () => `Authentication failed. Please try again.`,
  },
  [EAuthenticationErrorCodes.ADMIN_USER_ALREADY_EXIST]: {
    title: `Admin user already exists`,
    message: () => (
      <div>
        Admin user already exists.&nbsp;
        <Link className="underline underline-offset-4 font-medium hover:font-bold transition-all" href={`/admin`}>
          Sign In
        </Link>
        &nbsp;now.
      </div>
    ),
  },
  [EAuthenticationErrorCodes.ADMIN_USER_DOES_NOT_EXIST]: {
    title: `Admin user does not exist`,
    message: () => (
      <div>
        Admin user does not exist.&nbsp;
        <Link className="underline underline-offset-4 font-medium hover:font-bold transition-all" href={`/admin`}>
          Sign In
        </Link>
        &nbsp;now.
      </div>
    ),
  },
};

export const authErrorHandler = (
  errorCode: EAuthenticationErrorCodes,
  email?: string | undefined
): TAuthErrorInfo | undefined => {
  const bannerAlertErrorCodes = [
    EAuthenticationErrorCodes.REQUIRED_ADMIN_EMAIL_PASSWORD_FIRST_NAME,
    EAuthenticationErrorCodes.INVALID_ADMIN_EMAIL,
    EAuthenticationErrorCodes.INVALID_ADMIN_PASSWORD,
    EAuthenticationErrorCodes.REQUIRED_ADMIN_EMAIL_PASSWORD,
    EAuthenticationErrorCodes.ADMIN_AUTHENTICATION_FAILED,
    EAuthenticationErrorCodes.ADMIN_USER_ALREADY_EXIST,
    EAuthenticationErrorCodes.ADMIN_USER_DOES_NOT_EXIST,
  ];

  if (bannerAlertErrorCodes.includes(errorCode))
    return {
      type: EErrorAlertType.BANNER_ALERT,
      code: errorCode,
      title: errorCodeMessages[errorCode]?.title || "Error",
      message: errorCodeMessages[errorCode]?.message(email) || "Something went wrong. Please try again.",
    };

  return undefined;
};