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 {
  // Global
  INSTANCE_NOT_CONFIGURED = "5000",
  INVALID_EMAIL = "5005",
  EMAIL_REQUIRED = "5010",
  SIGNUP_DISABLED = "5015",
  MAGIC_LINK_LOGIN_DISABLED = "5016",
  PASSWORD_LOGIN_DISABLED = "5018",
  USER_ACCOUNT_DEACTIVATED = "5019",
  // Password strength
  INVALID_PASSWORD = "5020",
  SMTP_NOT_CONFIGURED = "5025",
  // Sign Up
  USER_ALREADY_EXIST = "5030",
  AUTHENTICATION_FAILED_SIGN_UP = "5035",
  REQUIRED_EMAIL_PASSWORD_SIGN_UP = "5040",
  INVALID_EMAIL_SIGN_UP = "5045",
  INVALID_EMAIL_MAGIC_SIGN_UP = "5050",
  MAGIC_SIGN_UP_EMAIL_CODE_REQUIRED = "5055",
  // Sign In
  USER_DOES_NOT_EXIST = "5060",
  AUTHENTICATION_FAILED_SIGN_IN = "5065",
  REQUIRED_EMAIL_PASSWORD_SIGN_IN = "5070",
  INVALID_EMAIL_SIGN_IN = "5075",
  INVALID_EMAIL_MAGIC_SIGN_IN = "5080",
  MAGIC_SIGN_IN_EMAIL_CODE_REQUIRED = "5085",
  // Both Sign in and Sign up for magic
  INVALID_MAGIC_CODE_SIGN_IN = "5090",
  INVALID_MAGIC_CODE_SIGN_UP = "5092",
  EXPIRED_MAGIC_CODE_SIGN_IN = "5095",
  EXPIRED_MAGIC_CODE_SIGN_UP = "5097",
  EMAIL_CODE_ATTEMPT_EXHAUSTED_SIGN_IN = "5100",
  EMAIL_CODE_ATTEMPT_EXHAUSTED_SIGN_UP = "5102",
  // Oauth
  GOOGLE_NOT_CONFIGURED = "5105",
  GITHUB_NOT_CONFIGURED = "5110",
  GOOGLE_OAUTH_PROVIDER_ERROR = "5115",
  GITHUB_OAUTH_PROVIDER_ERROR = "5120",
  // Reset Password
  INVALID_PASSWORD_TOKEN = "5125",
  EXPIRED_PASSWORD_TOKEN = "5130",
  // Change password
  INCORRECT_OLD_PASSWORD = "5135",
  MISSING_PASSWORD = "5138",
  INVALID_NEW_PASSWORD = "5140",
  // set passowrd
  PASSWORD_ALREADY_SET = "5145",
  // 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",
  ADMIN_USER_DEACTIVATED = "5190",
  // Rate limit
  RATE_LIMIT_EXCEEDED = "5900",
}

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

const errorCodeMessages: {
  [key in EAuthenticationErrorCodes]: { title: string; message: (email?: string | undefined) => ReactNode };
} = {
  // global
  [EAuthenticationErrorCodes.INSTANCE_NOT_CONFIGURED]: {
    title: `Instance not configured`,
    message: () => `Instance not configured. Please contact your administrator.`,
  },
  [EAuthenticationErrorCodes.INVALID_EMAIL]: {
    title: `Invalid email`,
    message: () => `Invalid email. Please try again.`,
  },
  [EAuthenticationErrorCodes.EMAIL_REQUIRED]: {
    title: `Email required`,
    message: () => `Email required. Please try again.`,
  },
  [EAuthenticationErrorCodes.SIGNUP_DISABLED]: {
    title: `Sign up disabled`,
    message: () => `Sign up disabled. Please contact your administrator.`,
  },
  [EAuthenticationErrorCodes.MAGIC_LINK_LOGIN_DISABLED]: {
    title: `Magic link login disabled`,
    message: () => `Magic link login disabled. Please contact your administrator.`,
  },
  [EAuthenticationErrorCodes.PASSWORD_LOGIN_DISABLED]: {
    title: `Password login disabled`,
    message: () => `Password login disabled. Please contact your administrator.`,
  },
  [EAuthenticationErrorCodes.USER_ACCOUNT_DEACTIVATED]: {
    title: `User account deactivated`,
    message: () => `User account deactivated. Please contact your administrator.`,
  },
  [EAuthenticationErrorCodes.INVALID_PASSWORD]: {
    title: `Invalid password`,
    message: () => `Invalid password. Please try again.`,
  },
  [EAuthenticationErrorCodes.SMTP_NOT_CONFIGURED]: {
    title: `SMTP not configured`,
    message: () => `SMTP not configured. Please contact your administrator.`,
  },

  // sign up
  [EAuthenticationErrorCodes.USER_ALREADY_EXIST]: {
    title: `User already exists`,
    message: (email = undefined) => (
      <div>
        Your account is already registered.&nbsp;
        <Link
          className="underline underline-offset-4 font-medium hover:font-bold transition-all"
          href={`/sign-in${email ? `?email=${encodeURIComponent(email)}` : ``}`}
        >
          Sign In
        </Link>
        &nbsp;now.
      </div>
    ),
  },
  [EAuthenticationErrorCodes.REQUIRED_EMAIL_PASSWORD_SIGN_UP]: {
    title: `Email and password required`,
    message: () => `Email and password required. Please try again.`,
  },
  [EAuthenticationErrorCodes.AUTHENTICATION_FAILED_SIGN_UP]: {
    title: `Authentication failed`,
    message: () => `Authentication failed. Please try again.`,
  },
  [EAuthenticationErrorCodes.INVALID_EMAIL_SIGN_UP]: {
    title: `Invalid email`,
    message: () => `Invalid email. Please try again.`,
  },
  [EAuthenticationErrorCodes.MAGIC_SIGN_UP_EMAIL_CODE_REQUIRED]: {
    title: `Email and code required`,
    message: () => `Email and code required. Please try again.`,
  },
  [EAuthenticationErrorCodes.INVALID_EMAIL_MAGIC_SIGN_UP]: {
    title: `Invalid email`,
    message: () => `Invalid email. Please try again.`,
  },

  [EAuthenticationErrorCodes.USER_DOES_NOT_EXIST]: {
    title: `User does not exist`,
    message: (email = undefined) => (
      <div>
        No account found.&nbsp;
        <Link
          className="underline underline-offset-4 font-medium hover:font-bold transition-all"
          href={`/${email ? `?email=${encodeURIComponent(email)}` : ``}`}
        >
          Create one
        </Link>
        &nbsp;to get started.
      </div>
    ),
  },
  [EAuthenticationErrorCodes.REQUIRED_EMAIL_PASSWORD_SIGN_IN]: {
    title: `Email and password required`,
    message: () => `Email and password required. Please try again.`,
  },
  [EAuthenticationErrorCodes.AUTHENTICATION_FAILED_SIGN_IN]: {
    title: `Authentication failed`,
    message: () => `Authentication failed. Please try again.`,
  },
  [EAuthenticationErrorCodes.INVALID_EMAIL_SIGN_IN]: {
    title: `Invalid email`,
    message: () => `Invalid email. Please try again.`,
  },
  [EAuthenticationErrorCodes.MAGIC_SIGN_IN_EMAIL_CODE_REQUIRED]: {
    title: `Email and code required`,
    message: () => `Email and code required. Please try again.`,
  },
  [EAuthenticationErrorCodes.INVALID_EMAIL_MAGIC_SIGN_IN]: {
    title: `Invalid email`,
    message: () => `Invalid email. Please try again.`,
  },

  // Both Sign in and Sign up
  [EAuthenticationErrorCodes.INVALID_MAGIC_CODE_SIGN_IN]: {
    title: `Authentication failed`,
    message: () => `Invalid magic code. Please try again.`,
  },
  [EAuthenticationErrorCodes.INVALID_MAGIC_CODE_SIGN_UP]: {
    title: `Authentication failed`,
    message: () => `Invalid magic code. Please try again.`,
  },
  [EAuthenticationErrorCodes.EXPIRED_MAGIC_CODE_SIGN_IN]: {
    title: `Expired magic code`,
    message: () => `Expired magic code. Please try again.`,
  },
  [EAuthenticationErrorCodes.EXPIRED_MAGIC_CODE_SIGN_UP]: {
    title: `Expired magic code`,
    message: () => `Expired magic code. Please try again.`,
  },
  [EAuthenticationErrorCodes.EMAIL_CODE_ATTEMPT_EXHAUSTED_SIGN_IN]: {
    title: `Expired magic code`,
    message: () => `Expired magic code. Please try again.`,
  },
  [EAuthenticationErrorCodes.EMAIL_CODE_ATTEMPT_EXHAUSTED_SIGN_UP]: {
    title: `Expired magic code`,
    message: () => `Expired magic code. Please try again.`,
  },

  // Oauth
  [EAuthenticationErrorCodes.GOOGLE_NOT_CONFIGURED]: {
    title: `Google not configured`,
    message: () => `Google not configured. Please contact your administrator.`,
  },
  [EAuthenticationErrorCodes.GITHUB_NOT_CONFIGURED]: {
    title: `GitHub not configured`,
    message: () => `GitHub not configured. Please contact your administrator.`,
  },
  [EAuthenticationErrorCodes.GOOGLE_OAUTH_PROVIDER_ERROR]: {
    title: `Google OAuth provider error`,
    message: () => `Google OAuth provider error. Please try again.`,
  },
  [EAuthenticationErrorCodes.GITHUB_OAUTH_PROVIDER_ERROR]: {
    title: `GitHub OAuth provider error`,
    message: () => `GitHub OAuth provider error. Please try again.`,
  },

  // Reset Password
  [EAuthenticationErrorCodes.INVALID_PASSWORD_TOKEN]: {
    title: `Invalid password token`,
    message: () => `Invalid password token.`,
  },
  [EAuthenticationErrorCodes.EXPIRED_PASSWORD_TOKEN]: {
    title: `Expired password token`,
    message: () => `Expired password token. Please try again.`,
  },

  // Change password
  [EAuthenticationErrorCodes.MISSING_PASSWORD]: {
    title: `Password required`,
    message: () => `Password required. Please try again.`,
  },
  [EAuthenticationErrorCodes.INCORRECT_OLD_PASSWORD]: {
    title: `Incorrect old password`,
    message: () => `Incorrect old password. Please try again.`,
  },
  [EAuthenticationErrorCodes.INVALID_NEW_PASSWORD]: {
    title: `Invalid new password`,
    message: () => `Invalid new password. Please try again.`,
  },

  // set password
  [EAuthenticationErrorCodes.PASSWORD_ALREADY_SET]: {
    title: `Password already set`,
    message: () => `Password already set. Please try again.`,
  },

  // 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>
    ),
  },
  [EAuthenticationErrorCodes.ADMIN_USER_DEACTIVATED]: {
    title: `Admin user deactivated`,
    message: () => <div>Your account is deactivated</div>,
  },
  [EAuthenticationErrorCodes.RATE_LIMIT_EXCEEDED]: {
    title: "",
    message: () => `Rate limit exceeded. Please try again later.`,
  },
};

export const authErrorHandler = (
  errorCode: EAuthenticationErrorCodes,
  email?: string | undefined
): TAuthErrorInfo | undefined => {
  const bannerAlertErrorCodes = [
    EAuthenticationErrorCodes.INSTANCE_NOT_CONFIGURED,
    EAuthenticationErrorCodes.INVALID_EMAIL,
    EAuthenticationErrorCodes.EMAIL_REQUIRED,
    EAuthenticationErrorCodes.SIGNUP_DISABLED,
    EAuthenticationErrorCodes.MAGIC_LINK_LOGIN_DISABLED,
    EAuthenticationErrorCodes.PASSWORD_LOGIN_DISABLED,
    EAuthenticationErrorCodes.USER_ACCOUNT_DEACTIVATED,
    EAuthenticationErrorCodes.INVALID_PASSWORD,
    EAuthenticationErrorCodes.SMTP_NOT_CONFIGURED,
    EAuthenticationErrorCodes.USER_ALREADY_EXIST,
    EAuthenticationErrorCodes.AUTHENTICATION_FAILED_SIGN_UP,
    EAuthenticationErrorCodes.REQUIRED_EMAIL_PASSWORD_SIGN_UP,
    EAuthenticationErrorCodes.INVALID_EMAIL_SIGN_UP,
    EAuthenticationErrorCodes.INVALID_EMAIL_MAGIC_SIGN_UP,
    EAuthenticationErrorCodes.MAGIC_SIGN_UP_EMAIL_CODE_REQUIRED,
    EAuthenticationErrorCodes.USER_DOES_NOT_EXIST,
    EAuthenticationErrorCodes.AUTHENTICATION_FAILED_SIGN_IN,
    EAuthenticationErrorCodes.REQUIRED_EMAIL_PASSWORD_SIGN_IN,
    EAuthenticationErrorCodes.INVALID_EMAIL_SIGN_IN,
    EAuthenticationErrorCodes.INVALID_EMAIL_MAGIC_SIGN_IN,
    EAuthenticationErrorCodes.MAGIC_SIGN_IN_EMAIL_CODE_REQUIRED,
    EAuthenticationErrorCodes.INVALID_MAGIC_CODE_SIGN_IN,
    EAuthenticationErrorCodes.INVALID_MAGIC_CODE_SIGN_UP,
    EAuthenticationErrorCodes.EXPIRED_MAGIC_CODE_SIGN_IN,
    EAuthenticationErrorCodes.EXPIRED_MAGIC_CODE_SIGN_UP,
    EAuthenticationErrorCodes.EMAIL_CODE_ATTEMPT_EXHAUSTED_SIGN_IN,
    EAuthenticationErrorCodes.EMAIL_CODE_ATTEMPT_EXHAUSTED_SIGN_UP,
    EAuthenticationErrorCodes.GOOGLE_NOT_CONFIGURED,
    EAuthenticationErrorCodes.GITHUB_NOT_CONFIGURED,
    EAuthenticationErrorCodes.GOOGLE_OAUTH_PROVIDER_ERROR,
    EAuthenticationErrorCodes.GITHUB_OAUTH_PROVIDER_ERROR,
    EAuthenticationErrorCodes.INVALID_PASSWORD_TOKEN,
    EAuthenticationErrorCodes.EXPIRED_PASSWORD_TOKEN,
    EAuthenticationErrorCodes.INCORRECT_OLD_PASSWORD,
    EAuthenticationErrorCodes.MISSING_PASSWORD,
    EAuthenticationErrorCodes.INVALID_NEW_PASSWORD,
    EAuthenticationErrorCodes.PASSWORD_ALREADY_SET,
    EAuthenticationErrorCodes.ADMIN_ALREADY_EXIST,
    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,
    EAuthenticationErrorCodes.ADMIN_USER_DEACTIVATED,
    EAuthenticationErrorCodes.RATE_LIMIT_EXCEEDED,
  ];

  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;
};