You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
86 lines
2.0 KiB
86 lines
2.0 KiB
import log from 'loglevel';
|
|
import getFetchWithTimeout from '../../../shared/modules/fetch-with-timeout';
|
|
|
|
const fetchWithTimeout = getFetchWithTimeout();
|
|
|
|
const FIXTURE_SERVER_HOST = 'localhost';
|
|
const FIXTURE_SERVER_PORT = 12345;
|
|
const FIXTURE_SERVER_URL = `http://${FIXTURE_SERVER_HOST}:${FIXTURE_SERVER_PORT}/state.json`;
|
|
|
|
/**
|
|
* A read-only network-based storage wrapper
|
|
*/
|
|
export default class ReadOnlyNetworkStore {
|
|
constructor() {
|
|
this._initialized = false;
|
|
this._initializing = this._init();
|
|
this._state = undefined;
|
|
}
|
|
|
|
/**
|
|
* Declares this store as compatible with the current browser
|
|
*/
|
|
isSupported = true;
|
|
|
|
/**
|
|
* Initializes by loading state from the network
|
|
*/
|
|
async _init() {
|
|
try {
|
|
const response = await fetchWithTimeout(FIXTURE_SERVER_URL);
|
|
if (response.ok) {
|
|
this._state = await response.json();
|
|
}
|
|
} catch (error) {
|
|
log.debug(`Error loading network state: '${error.message}'`);
|
|
} finally {
|
|
this._initialized = true;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Returns state
|
|
*
|
|
* @returns {Promise<object>}
|
|
*/
|
|
async get() {
|
|
if (!this._initialized) {
|
|
await this._initializing;
|
|
}
|
|
return this._state;
|
|
}
|
|
|
|
/**
|
|
* Set metadata/version state
|
|
*
|
|
* @param {object} metadata - The metadata/version data to set
|
|
*/
|
|
setMetadata(metadata) {
|
|
this.metadata = metadata;
|
|
}
|
|
|
|
/**
|
|
* Set state
|
|
*
|
|
* @param {object} state - The state to set
|
|
*/
|
|
async set(state) {
|
|
if (!this.isSupported) {
|
|
throw new Error(
|
|
'Metamask- cannot persist state to local store as this browser does not support this action',
|
|
);
|
|
}
|
|
if (!state) {
|
|
throw new Error('MetaMask - updated state is missing');
|
|
}
|
|
if (!this.metadata) {
|
|
throw new Error(
|
|
'MetaMask - metadata must be set on instance of ExtensionStore before calling "set"',
|
|
);
|
|
}
|
|
if (!this._initialized) {
|
|
await this._initializing;
|
|
}
|
|
this._state = { data: state, meta: this._metadata };
|
|
}
|
|
}
|
|
|