1 files changed, 52 insertions, 0 deletions
diff --git a/app/scripts/lib/idStore-migrator.js b/app/scripts/lib/idStore-migrator.js
new file mode 100644
index 000000000..18134b677
--- /dev/null
+++ b/app/scripts/lib/idStore-migrator.js
@@ -0,0 +1,52 @@
+const IdentityStore = require('./idStore')
+
+
+module.exports = class IdentityStoreMigrator {
+
+  constructor ({ configManager }) {
+    this.configManager = configManager
+    const hasOldVault = this.hasOldVault()
+    if (!hasOldVault) {
+      this.idStore = new IdentityStore({ configManager })
+    }
+  }
+
+  oldSeedForPassword (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)
+        try {
+          resolve(this.serializeVault())
+        } catch (e) {
+          reject(e)
+        }
+      })
+    })
+  }
+
+  serializeVault () {
+    const mnemonic = this.idStore._idmgmt.getSeed()
+    const numberOfAccounts = this.idStore._getAddresses().length
+
+    return {
+      type: 'HD Key Tree',
+      data: { mnemonic, numberOfAccounts },
+    }
+  }
+
+  hasOldVault () {
+    const wallet = this.configManager.getWallet()
+    return wallet
+  }
+}