nova-ui/assets/services/idb.js

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import { deleteDB, openDB } from 'idb'
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export const VERSION_ERROR = 'less than the existing version'
export const INDEX_DB_ERROR = 'A mutation operation was attempted on a database that did not allow mutations.'
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export const IDB_VERSION = 9
// TODO method for migration, remove indexed
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export class IndexedDB {
constructor({ stores, dbName }) {
this.dbExists = false
this.isBlocked = false
this.options = {
upgrade(db) {
Object.values(db.objectStoreNames).forEach((value) => {
db.deleteObjectStore(value)
})
stores.forEach(({ name, keyPath, indexes }) => {
const store = db.createObjectStore(name, {
keyPath,
autoIncrement: true,
})
if (Array.isArray(indexes)) {
indexes.forEach(({ name, unique = false }) => {
store.createIndex(name, String(name), { unique })
})
}
})
},
}
this.dbName = dbName
}
async initDB() {
try {
if (this.dbExists) {
return
}
this.db = await openDB(this.dbName, IDB_VERSION, this.options) // version (optional): Schema version, or undefined to open the current version.
this.onEventHandler()
this.dbExists = true
} catch (err) {
// need for private mode firefox browser
if (err.message.includes(INDEX_DB_ERROR)) {
this.isBlocked = true
return
}
if (err.message.includes(VERSION_ERROR)) {
await this.removeExist()
}
console.error(`initDB has error: ${err.message}`)
}
}
async createTransactions({ storeName, data, mode = 'readwrite' }) {
try {
const tx = this.db.transaction(storeName, mode)
const storedItem = tx.objectStore(storeName)
if (storedItem.add) {
await storedItem.add(data)
await tx.done
}
} catch (err) {
throw new Error(`Method createTransactions has error: ${err.message}`)
}
}
createMultipleTransactions({
storeName,
data,
index,
mode = 'readwrite',
}) {
try {
const tx = this.db.transaction(storeName, mode)
data.forEach((item) => {
if (item && tx.store && tx.store.put) {
tx.store.put({ ...item, ...index })
}
})
} catch (err) {
throw new Error(`Method createMultipleTransactions has error: ${err.message}`)
}
}
async getFromIndex(params) {
if (this.isBlocked) {
return
}
try {
const item = await this.getFromIndexHandler(params)
return item
} catch (err) {
return undefined
}
}
async getItem({ storeName, key }) {
try {
if (this.isBlocked) {
return
}
const store = this.db.transaction(storeName).objectStore(storeName)
const value = await store.get(key)
return value
} catch (err) {
throw new Error(`Method getItem has error: ${err.message}`)
}
}
async addItem({ storeName, data, key }) {
try {
const tx = this.db.transaction(storeName, 'readwrite')
const isExist = await tx.objectStore(storeName).get(key)
if (!isExist) {
await tx.objectStore(storeName).add(data)
}
} catch (err) {
throw new Error(`Method addItem has error: ${err.message}`)
}
}
async putItem({ storeName, data }) {
try {
if (this.isBlocked) {
return
}
const tx = this.db.transaction(storeName, 'readwrite')
await tx.objectStore(storeName).put(data)
} catch (err) {
throw new Error(`Method putItem has error: ${err.message}`)
}
}
async getAll({ storeName }) {
try {
if (this.isBlocked || !this.dbExists) {
return []
}
const tx = this.db.transaction(storeName, 'readonly')
const store = tx.objectStore(storeName)
const data = await store.getAll()
return data
} catch (err) {
throw new Error(`Method getAll has error: ${err.message}`)
}
}
async clearStore({ storeName, mode = 'readwrite' }) {
try {
const tx = this.db.transaction(storeName, mode)
const storedItem = tx.objectStore(storeName)
if (storedItem.clear) {
await storedItem.clear()
}
} catch (err) {
throw new Error(`Method clearStore has error: ${err.message}`)
}
}
async getAllFromIndex(params) {
if (this.isBlocked) {
return []
}
try {
const items = await this.getAllFromIndexHandler(params)
return items
} catch (err) {
return []
}
}
onEventHandler() {
// eslint-disable-next-line @typescript-eslint/no-misused-promises
this.db.addEventListener('onupgradeneeded', async () => {
await this.removeExist()
})
}
async removeExist() {
await deleteDB(this.dbName)
this.dbExists = false
await this.initDB()
}
async getFromIndexHandler({ storeName, indexName, key }) {
try {
const value = await this.db.getFromIndex(storeName, indexName, key)
return value
} catch (err) {
throw new Error(`Method getFromIndexHandler has error: ${err.message}`)
}
}
async getAllFromIndexHandler({ storeName, indexName, key, count }) {
try {
const value = await this.db.getAllFromIndex(storeName, indexName, key, count)
return value
} catch (err) {
throw new Error(`Method getAllFromIndex has error: ${err.message}`)
}
}
}