Add restoreIndex field to store and init functions for wallet restore.

restoreIndex keeps track of how many seed words the user has entered so we know which ones are remaining for the user to enter.

We want to reset these values on the start of the restore process, as well as ensure they are up to date as the user goes from one page of restore entries to the next.

Author: valentinewallace

src/action/wallet.js

@@ -224,6 +224,41 @@ class WalletAction {
     }
   }
 
+  /**
+   * Initialize the restore wallet view by resetting input values and then
+   * navigating to the view.
+   * @return {undefined}
+   */
+  initRestoreWallet() {
+    this._store.wallet.restoreIndex = 0;
+    this._nav.goRestoreSeed();
+  }
+
+  /**
+   * Initialize the next restore wallet view by setting a new restoreIndex or,
+   * if all seed words have been entered, navigating to the password entry
+   * view.
+   * @return {undefined}
+   */
+  initNextRestorePage() {
+    if (this._store.wallet.restoreIndex < 21) {
+      this._store.wallet.restoreIndex += 3;
+    } else {
+      this._nav.goRestorePassword();
+    }
+  }
+
+  /**
+   * Initialize the previous restore wallet view by setting a new restoreIndex
+   * or, if on the first seed entry page, navigating to the select seed view.
+   * @return {undefined}
+   */
+  initPrevRestorePage() {
+    if (this._store.wallet.restoreIndex >= 3) {
+      this._store.wallet.restoreIndex -= 3;
+    } else {
+      this._nav.goSelectSeed();
+    }
   }
 
   /**

src/store.js

@@ -41,6 +41,7 @@ export class Store {
         passwordVerify: '',
         seedVerify: ['', '', ''],
         restoring: false,
+        restoreIndex: 0,
         restoreSeed: Array(24).fill(''),
       },
       transactions: [],

test/unit/action/wallet.spec.js

@@ -236,6 +236,15 @@ describe('Action Wallet Unit Tests', () => {
     });
   });
 
+  describe('initRestoreWallet()', () => {
+    it('should clear attributes and navigate to view', () => {
+      store.wallet.restoreIndex = 42;
+      wallet.initRestoreWallet();
+      expect(store.wallet.restoreSeed.length, 'to equal', 24);
+      expect(store.wallet.restoreIndex, 'to equal', 0);
+      expect(nav.goRestoreSeed, 'was called once');
+    });
+  });
 
   describe('setRestoreSeed()', () => {
     it('should clear attributes', () => {
@@ -244,6 +253,38 @@ describe('Action Wallet Unit Tests', () => {
     });
   });
 
+  describe('initPrevRestorePage()', () => {
+    it('should navigate to select seed if restoreIndex < 3', () => {
+      store.wallet.restoreIndex = 2;
+      wallet.initPrevRestorePage();
+      expect(nav.goSelectSeed, 'was called once');
+      expect(store.wallet.restoreIndex, 'to equal', 2);
+    });
+
+    it('should decrement restoreIndex if greater than 2', async () => {
+      store.wallet.restoreIndex = 3;
+      wallet.initPrevRestorePage();
+      expect(nav.goSelectSeed, 'was not called');
+      expect(store.wallet.restoreIndex, 'to equal', 0);
+    });
+  });
+
+  describe('initNextRestorePage()', () => {
+    it('should navigate to password screen if restoreIndex > 20', () => {
+      store.wallet.restoreIndex = 21;
+      wallet.initNextRestorePage();
+      expect(nav.goRestorePassword, 'was called once');
+      expect(store.wallet.restoreIndex, 'to equal', 21);
+    });
+
+    it('should increment restoreIndex if less than 21', async () => {
+      store.wallet.restoreIndex = 18;
+      wallet.initNextRestorePage();
+      expect(nav.goRestorePassword, 'was not called');
+      expect(store.wallet.restoreIndex, 'to equal', 21);
+    });
+  });
+
   describe('initInitialDeposit()', () => {
     it('should navigate to new address screen if address is non-null', () => {
       store.walletAddress = 'non-null-addr';