Warp/node_modules/@algolia/cache-browser-local-storage/dist/cache-browser-local-storage.esm.js
2024-01-05 19:14:38 +07:00

79 lines
3.1 KiB
JavaScript

function createBrowserLocalStorageCache(options) {
const namespaceKey = `algoliasearch-client-js-${options.key}`;
// eslint-disable-next-line functional/no-let
let storage;
const getStorage = () => {
if (storage === undefined) {
storage = options.localStorage || window.localStorage;
}
return storage;
};
const getNamespace = () => {
return JSON.parse(getStorage().getItem(namespaceKey) || '{}');
};
const setNamespace = (namespace) => {
getStorage().setItem(namespaceKey, JSON.stringify(namespace));
};
const removeOutdatedCacheItems = () => {
const timeToLive = options.timeToLive ? options.timeToLive * 1000 : null;
const namespace = getNamespace();
const filteredNamespaceWithoutOldFormattedCacheItems = Object.fromEntries(Object.entries(namespace).filter(([, cacheItem]) => {
return cacheItem.timestamp !== undefined;
}));
setNamespace(filteredNamespaceWithoutOldFormattedCacheItems);
if (!timeToLive)
return;
const filteredNamespaceWithoutExpiredItems = Object.fromEntries(Object.entries(filteredNamespaceWithoutOldFormattedCacheItems).filter(([, cacheItem]) => {
const currentTimestamp = new Date().getTime();
const isExpired = cacheItem.timestamp + timeToLive < currentTimestamp;
return !isExpired;
}));
setNamespace(filteredNamespaceWithoutExpiredItems);
};
return {
get(key, defaultValue, events = {
miss: () => Promise.resolve(),
}) {
return Promise.resolve()
.then(() => {
removeOutdatedCacheItems();
const keyAsString = JSON.stringify(key);
return getNamespace()[keyAsString];
})
.then(value => {
return Promise.all([value ? value.value : defaultValue(), value !== undefined]);
})
.then(([value, exists]) => {
return Promise.all([value, exists || events.miss(value)]);
})
.then(([value]) => value);
},
set(key, value) {
return Promise.resolve().then(() => {
const namespace = getNamespace();
// eslint-disable-next-line functional/immutable-data
namespace[JSON.stringify(key)] = {
timestamp: new Date().getTime(),
value,
};
getStorage().setItem(namespaceKey, JSON.stringify(namespace));
return value;
});
},
delete(key) {
return Promise.resolve().then(() => {
const namespace = getNamespace();
// eslint-disable-next-line functional/immutable-data
delete namespace[JSON.stringify(key)];
getStorage().setItem(namespaceKey, JSON.stringify(namespace));
});
},
clear() {
return Promise.resolve().then(() => {
getStorage().removeItem(namespaceKey);
});
},
};
}
export { createBrowserLocalStorageCache };