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/**
* SPDX-FileCopyrightText: 2023 Nextcloud GmbH and Nextcloud contributors
* SPDX-License-Identifier: AGPL-3.0-or-later
*/
// The preview service worker cache name (see webpack config)
const SWCacheName = 'previews'
/**
* Check if the preview is already cached by the service worker
* @param previewUrl
*/
export const isCachedPreview = function(previewUrl: string): Promise<boolean> {
if (!window?.caches?.open) {
return Promise.resolve(false)
}
return window?.caches?.open(SWCacheName)
.then(function(cache) {
return cache.match(previewUrl)
.then(function(response) {
return !!response
})
})
}
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