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'use strict'
const { kConstruct } = require('./symbols')
const { Cache } = require('./cache')
const { webidl } = require('../fetch/webidl')
const { kEnumerableProperty } = require('../core/util')
class CacheStorage {
/**
* @see https://w3c.github.io/ServiceWorker/#dfn-relevant-name-to-cache-map
* @type {Map<string, import('./cache').requestResponseList}
*/
#caches = new Map()
constructor () {
if (arguments[0] !== kConstruct) {
webidl.illegalConstructor()
}
}
async match (request, options = {}) {
webidl.brandCheck(this, CacheStorage)
webidl.argumentLengthCheck(arguments, 1, { header: 'CacheStorage.match' })
request = webidl.converters.RequestInfo(request)
options = webidl.converters.MultiCacheQueryOptions(options)
// 1.
if (options.cacheName != null) {
// 1.1.1.1
if (this.#caches.has(options.cacheName)) {
// 1.1.1.1.1
const cacheList = this.#caches.get(options.cacheName)
const cache = new Cache(kConstruct, cacheList)
return await cache.match(request, options)
}
} else { // 2.
// 2.2
for (const cacheList of this.#caches.values()) {
const cache = new Cache(kConstruct, cacheList)
// 2.2.1.2
const response = await cache.match(request, options)
if (response !== undefined) {
return response
}
}
}
}
/**
* @see https://w3c.github.io/ServiceWorker/#cache-storage-has
* @param {string} cacheName
* @returns {Promise<boolean>}
*/
async has (cacheName) {
webidl.brandCheck(this, CacheStorage)
webidl.argumentLengthCheck(arguments, 1, { header: 'CacheStorage.has' })
cacheName = webidl.converters.DOMString(cacheName)
// 2.1.1
// 2.2
return this.#caches.has(cacheName)
}
/**
* @see https://w3c.github.io/ServiceWorker/#dom-cachestorage-open
* @param {string} cacheName
* @returns {Promise<Cache>}
*/
async open (cacheName) {
webidl.brandCheck(this, CacheStorage)
webidl.argumentLengthCheck(arguments, 1, { header: 'CacheStorage.open' })
cacheName = webidl.converters.DOMString(cacheName)
// 2.1
if (this.#caches.has(cacheName)) {
// await caches.open('v1') !== await caches.open('v1')
// 2.1.1
const cache = this.#caches.get(cacheName)
// 2.1.1.1
return new Cache(kConstruct, cache)
}
// 2.2
const cache = []
// 2.3
this.#caches.set(cacheName, cache)
// 2.4
return new Cache(kConstruct, cache)
}
/**
* @see https://w3c.github.io/ServiceWorker/#cache-storage-delete
* @param {string} cacheName
* @returns {Promise<boolean>}
*/
async delete (cacheName) {
webidl.brandCheck(this, CacheStorage)
webidl.argumentLengthCheck(arguments, 1, { header: 'CacheStorage.delete' })
cacheName = webidl.converters.DOMString(cacheName)
return this.#caches.delete(cacheName)
}
/**
* @see https://w3c.github.io/ServiceWorker/#cache-storage-keys
* @returns {string[]}
*/
async keys () {
webidl.brandCheck(this, CacheStorage)
// 2.1
const keys = this.#caches.keys()
// 2.2
return [...keys]
}
}
Object.defineProperties(CacheStorage.prototype, {
[Symbol.toStringTag]: {
value: 'CacheStorage',
configurable: true
},
match: kEnumerableProperty,
has: kEnumerableProperty,
open: kEnumerableProperty,
delete: kEnumerableProperty,
keys: kEnumerableProperty
})
module.exports = {
CacheStorage
}
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