add address book repository

lib/util/storage/database/address_book_repository.dart

@@ -0,0 +1,65 @@
+import 'package:sembast/sembast.dart';
+
+class AddressBookEntry {
+  String name;
+  String address;
+
+  AddressBookEntry(this.name, this.address);
+
+  factory AddressBookEntry.fromJson(Map<String, dynamic> data) {
+    return AddressBookEntry(data['name'], data['address']);
+  }
+
+  Map<String, dynamic> jsonMap() {
+    return {
+      "name": this.name,
+      "address": this.address,
+    };
+  }
+}
+
+class AddressBookRepository {
+  final StoreRef _store = stringMapStoreFactory.store("address_book");
+
+  Future<bool> insertAddressBookEntry(
+    AddressBookEntry addressBookEntry,
+    DatabaseClient databaseClient,
+  ) async {
+    return true;
+  }
+
+  Future<bool> updateAddressBookEntry(
+      AddressBookEntry addressBookEntry, DatabaseClient databaseClient) async {
+    return true;
+  }
+
+  Future<bool> deleteAddressBookEntry(
+    AddressBookEntry addressBookEntry,
+    DatabaseClient databaseClient,
+  ) async {
+    return true;
+  }
+
+  Future<AddressBookEntry?> getAddressBookEntry(
+      String address, DatabaseClient databaseClient) async {
+    try {
+      dynamic addressBookEntryJson =
+          await _store.record(address).get(databaseClient);
+      AddressBookEntry addressBookEntry =
+          AddressBookEntry.fromJson(addressBookEntryJson);
+      return addressBookEntry;
+    } catch (e) {
+      return null;
+    }
+  }
+
+  Future<List<AddressBookEntry>> getEntries(
+      DatabaseClient databaseClient) async {
+    final List<RecordSnapshot<dynamic, dynamic>> snapshots =
+        await _store.find(databaseClient);
+    List<AddressBookEntry> accounts = snapshots
+        .map((snapshot) => AddressBookEntry.fromJson(snapshot.value))
+        .toList(growable: false);
+    return accounts;
+  }
+}

lib/util/storage/database/database_isolate.dart

@@ -2,6 +2,7 @@ import 'dart:async';
 import 'dart:convert';
 import 'dart:isolate';
 
+import 'package:my_wit_wallet/util/storage/database/address_book_repository.dart';
 import 'package:my_wit_wallet/util/storage/database/stats.dart';
 import 'package:my_wit_wallet/util/storage/database/transaction_adapter.dart';
 import 'package:witnet/explorer.dart';
@@ -16,6 +17,7 @@ Map<String, Function(DatabaseService, SendPort, Map<String, dynamic>)>
   'configure': _configure,
   'delete': _deleteRecord,
   'deleteDatabase': _deleteDatabase,
+  'getAddressBookEntry': _getAddressBookEntry,
   'getKeychain': _getKeychain,
   'getStatsByAddress': _getStatsByAddress,
   'getVtt': _getVtt,
@@ -157,6 +159,9 @@ Future<void> _addRecord(
     case 'stats':
       value = await dbService.add(AccountStats.fromJson(params['value']));
       break;
+    case 'address_book_entry':
+      value = await dbService.add(AddressBookEntry.fromJson(params['value']));
+      break;
     default:
       value = false;
       break;
@@ -184,6 +189,9 @@ Future<void> _deleteRecord(
     case 'stats':
       value = await dbService.delete(AccountStats.fromJson(params['value']));
       break;
+    case 'address_book_entry':
+      value =
+          await dbService.delete(AddressBookEntry.fromJson(params['value']));
     default:
       value = false;
       break;
@@ -220,6 +228,10 @@ Future<void> _updateRecord(
     case 'stats':
       value = await dbService.update(AccountStats.fromJson(params['value']));
       break;
+    case 'address_book_entry':
+      value =
+          await dbService.update(AddressBookEntry.fromJson(params['value']));
+      break;
     default:
       value = false;
       break;
@@ -277,3 +289,13 @@ Future<void> _getMint(
   MintEntry? mint = await dbService.getMint(params);
   port.send(mint);
 }
+
+Future<void> _getAddressBookEntry(
+  DatabaseService dbService,
+  SendPort port,
+  Map<String, dynamic> params,
+) async {
+  AddressBookEntry? addressBookEntry =
+      await dbService.getAddressBookEntry(params);
+  port.send(addressBookEntry);
+}

lib/util/storage/database/database_service.dart

@@ -1,4 +1,5 @@
 import 'dart:async';
+import 'package:my_wit_wallet/util/storage/database/address_book_repository.dart';
 import 'package:my_wit_wallet/util/storage/database/get_account_mints_map.dart';
 import 'package:my_wit_wallet/util/storage/database/get_account_vtts_map.dart';
 import 'package:my_wit_wallet/util/storage/database/stats.dart';
@@ -57,6 +58,7 @@ class DatabaseService {
   AccountRepository accountRepository = AccountRepository();
   MintRepository mintRepository = MintRepository();
   StatsRepository statsRepository = StatsRepository();
+  AddressBookRepository addressBookRepository = AddressBookRepository();
 
   KeyChain keyChain = KeyChain();
 
@@ -115,6 +117,9 @@ class DatabaseService {
         case AccountStats:
           await statsRepository.insertStats(item, _database);
           break;
+        case AddressBookEntry:
+          await addressBookRepository.insertAddressBookEntry(item, _database);
+          break;
         default:
           return false;
       }
@@ -156,6 +161,8 @@ class DatabaseService {
         case AccountStats:
           await statsRepository.deleteStats(item.address, _database);
           break;
+        case AddressBookEntry:
+          await addressBookRepository.deleteAddressBookEntry(item, _database);
         default:
           return false;
       }
@@ -183,6 +190,8 @@ class DatabaseService {
         case AccountStats:
           await statsRepository.updateStats(item, _database);
           break;
+        case AddressBookEntry:
+          await addressBookRepository.updateAddressBookEntry(item, _database);
         default:
           return false;
       }
@@ -260,6 +269,8 @@ class DatabaseService {
       Map<String, Account> accountMap = {};
       Map<String, ValueTransferInfo> vttMap = {};
       Map<String, MintEntry> mintMap = {};
+      List<AddressBookEntry> addressBook =
+          await addressBookRepository.getEntries(_database);
       for (int i = 0; i < wallets.length; i++) {
         walletMap[wallets[i].id] = wallets[i];
       }
@@ -314,6 +325,7 @@ class DatabaseService {
 
       /// Load current wallet and address from preferences
       WalletStorage _walletStorage = WalletStorage(wallets: walletMap);
+      _walletStorage.setAddressBookEntries(addressBook);
       _walletStorage.setAccounts(accountMap);
       _walletStorage.setTransactions(vttMap);
       _walletStorage.setMints(mintMap);
@@ -349,4 +361,9 @@ class DatabaseService {
   Future<Account?> getAccount(params) async {
     return await accountRepository.getAccount(params["address"], _database);
   }
+
+  Future<AddressBookEntry?> getAddressBookEntry(params) async {
+    return await addressBookRepository.getAddressBookEntry(
+        params["address"], _database);
+  }
 }

lib/util/storage/database/wallet_storage.dart

@@ -1,3 +1,4 @@
+import 'package:my_wit_wallet/util/storage/database/address_book_repository.dart';
 import 'package:my_wit_wallet/util/storage/database/stats.dart';
 import 'package:my_wit_wallet/util/storage/database/transaction_adapter.dart';
 import 'package:my_wit_wallet/util/storage/database/wallet.dart';
@@ -52,6 +53,9 @@ class WalletStorage {
   //<block_id, MintEntry>
   Map<String, MintEntry> _mints = {};
 
+  //<address, name>
+  Map<String, String> _addressBook = {};
+
   // WalletType type;
   String? _currentWalletId;
   String? _currentAddress;
@@ -126,6 +130,16 @@ class WalletStorage {
     wallets[walletId]!.setTransaction(mint);
   }
 
+  void setAddressBookEntry(AddressBookEntry addressBookEntry) {
+    _addressBook[addressBookEntry.address] = addressBookEntry.name;
+  }
+
+  void setAddressBookEntries(List<AddressBookEntry> entries) {
+    entries.forEach((element) {
+      setAddressBookEntry(element);
+    });
+  }
+
   void setAccount(Account account) {
     _accounts[account.address] = account;
     if (wallets[account.walletId] != null)