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const IdentityStore = require('./idStore')
const HdKeyring = require('../keyrings/hd')
const sigUtil = require('./sig-util')
const normalize = sigUtil.normalize
module.exports = class IdentityStoreMigrator {
constructor ({ configManager }) {
this.configManager = configManager
const hasOldVault = this.hasOldVault()
if (!hasOldVault) {
this.idStore = new IdentityStore({ configManager })
}
}
migratedVaultForPassword (password) {
const hasOldVault = this.hasOldVault()
const configManager = this.configManager
if (!this.idStore) {
this.idStore = new IdentityStore({ configManager })
}
if (!hasOldVault) {
return Promise.resolve(null)
}
return new Promise((resolve, reject) => {
this.idStore.submitPassword(password, (err) => {
if (err) return reject(err)
const serialized = this.serializeVault()
this.checkForErrors(serialized)
.then(resolve)
.catch(reject)
})
})
}
serializeVault () {
const mnemonic = this.idStore._idmgmt.getSeed()
const numberOfAccounts = this.idStore._getAddresses().length
return {
type: 'HD Key Tree',
data: { mnemonic, numberOfAccounts },
}
}
checkForErrors (serialized) {
const hd = new HdKeyring()
return hd.deserialize(serialized.data)
.then((hexAccounts) => {
const newAccounts = hexAccounts.map(normalize)
const oldAccounts = this.idStore._getAddresses().map(normalize)
const lostAccounts = oldAccounts.reduce((result, account) => {
if (newAccounts.includes(account)) {
return result
} else {
result.push(account)
return result
}
}, [])
return {
serialized,
lostAccounts,
}
})
}
hasOldVault () {
const wallet = this.configManager.getWallet()
return wallet
}
}
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