/*
  Copyright 2020 Google LLC
  Use of this source code is governed by an MIT-style
  license that can be found in the LICENSE file or at
  https://opensource.org/licenses/MIT.
*/
import '../_version.js';
function stripParams(fullURL, ignoreParams) {
    const strippedURL = new URL(fullURL);
    for (const param of ignoreParams) {
        strippedURL.searchParams.delete(param);
    }
    return strippedURL.href;
}
/**
 * Matches an item in the cache, ignoring specific URL params. This is similar
 * to the `ignoreSearch` option, but it allows you to ignore just specific
 * params (while continuing to match on the others).
 *
 * @private
 * @param {Cache} cache
 * @param {Request} request
 * @param {Object} matchOptions
 * @param {Array<string>} ignoreParams
 * @return {Promise<Response|undefined>}
 */
async function cacheMatchIgnoreParams(cache, request, ignoreParams, matchOptions) {
    const strippedRequestURL = stripParams(request.url, ignoreParams);
    // If the request doesn't include any ignored params, match as normal.
    if (request.url === strippedRequestURL) {
        return cache.match(request, matchOptions);
    }
    // Otherwise, match by comparing keys
    const keysOptions = Object.assign(Object.assign({}, matchOptions), { ignoreSearch: true });
    const cacheKeys = await cache.keys(request, keysOptions);
    for (const cacheKey of cacheKeys) {
        const strippedCacheKeyURL = stripParams(cacheKey.url, ignoreParams);
        if (strippedRequestURL === strippedCacheKeyURL) {
            return cache.match(cacheKey, matchOptions);
        }
    }
    return;
}
export { cacheMatchIgnoreParams };