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55 lines
1.4 KiB
55 lines
1.4 KiB
import { cloneDeep } from 'lodash'
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import { util } from '@metamask/controllers'
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const version = 37
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/**
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* The purpose of this migration is to update the address book state
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* to the new schema with chainId as a key.
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* and to add the isEns flag to all entries
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*/
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export default {
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version,
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async migrate (originalVersionedData) {
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const versionedData = cloneDeep(originalVersionedData)
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versionedData.meta.version = version
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const state = versionedData.data
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versionedData.data = transformState(state)
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return versionedData
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},
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}
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function transformState (state) {
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if (state.AddressBookController) {
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const ab = state.AddressBookController.addressBook
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const chainIds = new Set()
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const newAddressBook = {}
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// add all of the chainIds to a set
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Object.values(ab).forEach((v) => {
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chainIds.add(v.chainId)
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})
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// fill the chainId object with the entries with the matching chainId
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for (const id of chainIds.values()) {
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// make an empty object entry for each chainId
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newAddressBook[id] = {}
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for (const address in ab) {
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if (ab[address].chainId === id) {
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ab[address].isEns = false
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if (util.normalizeEnsName(ab[address].name)) {
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ab[address].isEns = true
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}
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newAddressBook[id][address] = ab[address]
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}
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}
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}
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state.AddressBookController.addressBook = newAddressBook
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}
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return state
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}
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