63 lines
1.9 KiB
JavaScript
63 lines
1.9 KiB
JavaScript
const isObject = require('lodash/isObject');
|
|
const isString = require('lodash/isString');
|
|
|
|
|
|
const ITEMS_STORE_NAME = 'items';
|
|
const LAST_PROCESSED_INDEX_KEY = 'attachmentMigration_lastProcessedIndex';
|
|
const IS_MIGRATION_COMPLETE_KEY = 'attachmentMigration_isComplete';
|
|
|
|
// Public API
|
|
exports.getAttachmentMigrationLastProcessedIndex = connection =>
|
|
getItem(connection, LAST_PROCESSED_INDEX_KEY);
|
|
|
|
exports.setAttachmentMigrationLastProcessedIndex = (connection, value) =>
|
|
setItem(connection, LAST_PROCESSED_INDEX_KEY, value);
|
|
|
|
exports.isAttachmentMigrationComplete = async connection =>
|
|
Boolean(await getItem(connection, IS_MIGRATION_COMPLETE_KEY));
|
|
|
|
exports.markAttachmentMigrationComplete = connection =>
|
|
setItem(connection, IS_MIGRATION_COMPLETE_KEY, true);
|
|
|
|
// Private API
|
|
const getItem = (connection, key) => {
|
|
if (!isObject(connection)) {
|
|
throw new TypeError('"connection" is required');
|
|
}
|
|
|
|
if (!isString(key)) {
|
|
throw new TypeError('"key" must be a string');
|
|
}
|
|
|
|
const transaction = connection.transaction(ITEMS_STORE_NAME, 'readonly');
|
|
const itemsStore = transaction.objectStore(ITEMS_STORE_NAME);
|
|
const request = itemsStore.get(key);
|
|
return new Promise((resolve, reject) => {
|
|
request.onerror = event =>
|
|
reject(event.target.error);
|
|
|
|
request.onsuccess = event =>
|
|
resolve(event.target.result ? event.target.result.value : null);
|
|
});
|
|
};
|
|
|
|
const setItem = (connection, key, value) => {
|
|
if (!isObject(connection)) {
|
|
throw new TypeError('"connection" is required');
|
|
}
|
|
|
|
if (!isString(key)) {
|
|
throw new TypeError('"key" must be a string');
|
|
}
|
|
|
|
const transaction = connection.transaction(ITEMS_STORE_NAME, 'readwrite');
|
|
const itemsStore = transaction.objectStore(ITEMS_STORE_NAME);
|
|
const request = itemsStore.put({ id: key, value }, key);
|
|
return new Promise((resolve, reject) => {
|
|
request.onerror = event =>
|
|
reject(event.target.error);
|
|
|
|
request.onsuccess = () =>
|
|
resolve();
|
|
});
|
|
};
|