import { _optionalChain } from '@sentry/utils';
import { addTracingExtensions, getClient } from '@sentry/core';
import { isBuild } from './utils/isBuild.js';
import { withTracedServerSideDataFetcher, withErrorInstrumentation } from './utils/wrapperUtils.js';

/**
 * Create a wrapped version of the user's exported `getInitialProps` function in
 * a custom document ("_document.js").
 *
 * @param origDocumentGetInitialProps The user's `getInitialProps` function
 * @param parameterizedRoute The page's parameterized route
 * @returns A wrapped version of the function
 */
function wrapDocumentGetInitialPropsWithSentry(
  origDocumentGetInitialProps,
) {
  return new Proxy(origDocumentGetInitialProps, {
    apply: (wrappingTarget, thisArg, args) => {
      if (isBuild()) {
        return wrappingTarget.apply(thisArg, args);
      }

      addTracingExtensions();

      const [context] = args;
      const { req, res } = context;

      const errorWrappedGetInitialProps = withErrorInstrumentation(wrappingTarget);
      const options = _optionalChain([getClient, 'call', _ => _(), 'optionalAccess', _2 => _2.getOptions, 'call', _3 => _3()]);

      // Generally we can assume that `req` and `res` are always defined on the server:
      // https://nextjs.org/docs/api-reference/data-fetching/get-initial-props#context-object
      // This does not seem to be the case in dev mode. Because we have no clean way of associating the the data fetcher
      // span with each other when there are no req or res objects, we simply do not trace them at all here.
      if (req && res && _optionalChain([options, 'optionalAccess', _4 => _4.instrumenter]) === 'sentry') {
        const tracedGetInitialProps = withTracedServerSideDataFetcher(errorWrappedGetInitialProps, req, res, {
          dataFetcherRouteName: '/_document',
          requestedRouteName: context.pathname,
          dataFetchingMethodName: 'getInitialProps',
        });

        return tracedGetInitialProps.apply(thisArg, args);
      } else {
        return errorWrappedGetInitialProps.apply(thisArg, args);
      }
    },
  });
}

/**
 * @deprecated Use `wrapDocumentGetInitialPropsWithSentry` instead.
 */
const withSentryServerSideDocumentGetInitialProps = wrapDocumentGetInitialPropsWithSentry;

export { withSentryServerSideDocumentGetInitialProps, wrapDocumentGetInitialPropsWithSentry };
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