import type {
  CancelledResponse,
  NativeModuleError,
  NoSavedCredentialFound,
} from './types';
import type {
  SignInResponse,
  SignInSilentlyResponse,
  SignInSuccessResponse,
} from './signIn/GoogleSignin';

/**
 * TypeScript helper to check if an object has the `code` property.
 * This is used to avoid `as` casting when you access the `code` property on errors returned by the module.
 */
export const isErrorWithCode = (error: any): error is NativeModuleError => {
  // to account for https://github.com/facebook/react-native/issues/41950
  // fixed in https://github.com/facebook/react-native/commit/9525074a194b9cf2b7ef8ed270978e3f7f2c41f7 0.74
  const isNewArchErrorIOS = typeof error === 'object' && error != null;
  return (error instanceof Error || isNewArchErrorIOS) && 'code' in error;
};

/**
 * TypeScript helper to check if a response is a `cancelled` response. This is the same as checking if the `response.type === "cancelled"`.
 *
 * Use this if you prefer to use a function instead of comparing with a raw string.
 *
 * It supports both One Tap and Original Google Sign In responses.
 *
 * @example
 * ```ts
 * const response = await GoogleOneTapSignIn.createAccount();
 *
 * if (isCancelledResponse(response)) {
 *   // handle cancelled response
 * }
 * ```
 */
export function isCancelledResponse(
  response: SignInResponse,
): response is CancelledResponse {
  return response.type === 'cancelled';
}

/**
 * TypeScript helper to check if a response is a `noSavedCredentialFound` response. This is the same as checking if the `response.type === "noSavedCredentialFound"`.
 *
 * Use this if you prefer to use a function instead of comparing with a raw string.
 *
 * It supports both One Tap and Original Google Sign In responses.
 *
 * @example
 * ```ts
 * const response = await GoogleOneTapSignIn.signIn();
 *
 * if (isNoSavedCredentialFoundResponse(response)) {
 *   // the case when no user was previously signed in
 * }
 * ```
 */
export function isNoSavedCredentialFoundResponse(
  response: SignInSilentlyResponse,
): response is NoSavedCredentialFound {
  return response.type === 'noSavedCredentialFound';
}

/**
 * TypeScript helper to check if a response is a `cancelled` response. This is the same as checking if the `response.type === "success"`.
 *
 * Use this if you prefer to use a function instead of comparing with a raw string.
 *
 * It supports both One Tap and Original Google Sign In responses.
 *
 * @example
 * ```ts
 * const response = await GoogleOneTapSignIn.createAccount();
 *
 * if (isSuccessResponse(response)) {
 *   // handle user signed in
 * }
 * ```
 */
export function isSuccessResponse(
  response: SignInResponse,
): response is SignInSuccessResponse {
  return response.type === 'success';
}