(function (root, factory) {
  const createSearchPreview = factory();
  if (typeof module === 'object' && module.exports) module.exports = createSearchPreview;
  if (root) root.createSearchPreview = createSearchPreview;
})(typeof globalThis !== 'undefined' ? globalThis : this, function () {
  return function createSearchPreview({ fetchJson, mutate, share, onState }) {
    let generation = 0;
    let current = null;
    let mutationRequest = null;
    let shareRequest = null;

    function run(action, pending, success, detail) {
      if (mutationRequest) return mutationRequest;
      onState({ status: pending, item: current, detail });
      mutationRequest = mutate(detail, action).then(result => {
        onState({ status: success, item: current, detail, result });
        return result;
      }).catch(error => {
        onState({ status: 'ready', item: current, detail, error });
        throw error;
      }).finally(() => { mutationRequest = null; });
      return mutationRequest;
    }

    return {
      open(item) {
        generation += 1;
        const requestGeneration = generation;
        current = { ...item };
        onState({ status: 'loading', item: current });
        return fetchJson(current).then(detail => {
          if (requestGeneration === generation) {
            current = { ...current, ...detail };
            onState({ status: 'ready', item: current, detail });
          }
          return detail;
        }).catch(error => {
          if (requestGeneration === generation) {
            onState({ status: 'error', item: current, error });
          }
          throw error;
        });
      },
      close() {
        generation += 1;
        current = null;
        onState({ status: 'closed' });
      },
      share(url) {
        if (shareRequest) return shareRequest;
        if (!current || typeof share !== 'function') return Promise.reject(new Error('Sharing is unavailable.'));
        const detail = current;
        onState({ status:'sharing', item:current, detail });
        shareRequest = share(url).then(result => {
          onState({ status:result, item:current, detail });
          return result;
        }).catch(error => {
          onState({ status:error?.name === 'AbortError' ? 'share-canceled' : 'share-error', item:current, detail, error });
          throw error;
        }).finally(() => { shareRequest = null; });
        return shareRequest;
      },
      claim(detail) {
        return run('claim', 'claiming', 'claimed', detail);
      },
      reopen(detail) {
        return run('reopen', 'reopening', 'reopened', detail);
      },
    };
  };
});