52 lines
1.5 KiB
JavaScript
52 lines
1.5 KiB
JavaScript
import cloneDeep from 'lodash/cloneDeep'
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import padStart from 'lodash/padStart'
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import { databaseCache, openReqs } from './cache'
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export function toPaddedBigInt (id) {
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return padStart(id, 30, '0')
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}
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export function toReversePaddedBigInt (id) {
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let bigInt = toPaddedBigInt(id)
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let res = ''
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for (let i = 0; i < bigInt.length; i++) {
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res += (9 - parseInt(bigInt.charAt(i), 10)).toString(10)
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}
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return res
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}
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export function transformStatusForStorage (status) {
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status = cloneDeep(status)
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status.pinafore_id_as_negative_big_int = toReversePaddedBigInt(status.id)
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status.pinafore_stale = true
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return status
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}
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export async function dbPromise(db, storeName, readOnlyOrReadWrite, cb) {
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return await new Promise((resolve, reject) => {
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const tx = db.transaction(storeName, readOnlyOrReadWrite)
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const store = tx.objectStore(storeName)
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let res
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cb(store, (result) => {
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res = result
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})
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tx.oncomplete = () => resolve(res)
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tx.onerror = () => reject(tx.error.name + ' ' + tx.error.message)
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})
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}
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export function deleteDbPromise(dbName) {
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return new Promise((resolve, reject) => {
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// close any open requests
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let openReq = openReqs[dbName];
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if (openReq && openReq.result) {
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openReq.result.close()
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}
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delete openReqs[dbName]
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delete databaseCache[dbName]
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let req = indexedDB.deleteDatabase(dbName)
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req.onsuccess = () => resolve()
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req.onerror = () => reject(req.error.name + ' ' + req.error.message)
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})
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} |