CW-589-WalletConnect-Connections-Independent (#1361)

* chore: Create cw_solana package and clean up files

* feat: Add Solana Wallet - Create, Restore form seed, restore from Key, Restore from QR, Send, Receive, transaction history, spl tokens

* fix: Make transactions file specific to solana only for solana transactions

* chore: Revert inject app details script

* fix: Fix issue with node and switch current node to main beta instead of testnet

* fix: Fix merge conflicts and adjust migration version

* fix: Fetch spl token error

Signed-off-by: Blazebrain <davidadegoke16@gmail.com>

* fix: Diplay and activate spl tokens bug

* fix: Review and fixes

* fix: reverted formatting for cryptocurrency class

* fix: Review comments, split sending flow into signing and sending separately, fix issues

* fix: Revert throwing unimplenented error

* chore: Fix comment

* chore: Fix comment

* fix: Errors in flow

* Update provider_types.dart [skip ci]

* fix: Issues with solana wallet

* Update solana_wallet.dart [skip ci]

* fix: Review comments

* fix: Date time config

* fix: Revert bash script for app details

* fix: Error with balance, displaying fees, fixing sent or received identifier bug, displaying token symbol with token transaction item in transactions list

* fix: Issues with address validation when sending spl tokens and walletconnect initial setup

* fix: Issues with sending, fetching transactions history, almost wrapping up walletconnect

* fix: Adjust imports that would affect monerocom building successfully

* fix: Refine transaction direction and continue work on walletconnect

* feat: Display SPL token transfers in the transaction history and finally settle the transaction direction

* fix: Delay in transactions history dispaly, show native token transactions first, then process spl token transactions

* feat: Switch node and revert solana chain id to previous id

* fix: Remove print statement

* fix: Remove await for transactions, fetch all transaction histories instantly and adjust solana send success message

* chore: Code refactoring and streamlined wallet type check for solana send success message

* fix: Make timeout error for node silent and add spl token images

* fix: Still trying to figure out what's wrong

* feat: Make walletconnect connections independent to wallet

* fix: Add proper return type to method

* fix: Alphabetizing translation files

---------

Signed-off-by: Blazebrain <davidadegoke16@gmail.com>
Co-authored-by: Omar Hatem <omarh.ismail1@gmail.com>

lib/core/wallet_connect/web3wallet_service.dart

@@ -1,10 +1,12 @@
 import 'dart:async';
+import 'dart:convert';
 import 'dart:developer';
 import 'dart:typed_data';
 
 import 'package:cake_wallet/core/wallet_connect/chain_service/eth/evm_chain_id.dart';
 import 'package:cake_wallet/core/wallet_connect/chain_service/eth/evm_chain_service.dart';
 import 'package:cake_wallet/core/wallet_connect/wallet_connect_key_service.dart';
+import 'package:cake_wallet/entities/preferences_key.dart';
 import 'package:cake_wallet/generated/i18n.dart';
 import 'package:cake_wallet/core/wallet_connect/models/auth_request_model.dart';
 import 'package:cake_wallet/core/wallet_connect/models/chain_key_model.dart';
@@ -19,6 +21,7 @@ import 'package:cw_core/wallet_type.dart';
 import 'package:eth_sig_util/eth_sig_util.dart';
 import 'package:flutter/material.dart';
 import 'package:mobx/mobx.dart';
+import 'package:shared_preferences/shared_preferences.dart';
 import 'package:walletconnect_flutter_v2/walletconnect_flutter_v2.dart';
 
 import 'chain_service/solana/solana_chain_id.dart';
@@ -32,6 +35,7 @@ class Web3WalletService = Web3WalletServiceBase with _$Web3WalletService;
 
 abstract class Web3WalletServiceBase with Store {
   final AppStore appStore;
+  final SharedPreferences sharedPreferences;
   final BottomSheetService _bottomSheetHandler;
   final WalletConnectKeyService walletKeyService;
 
@@ -52,7 +56,8 @@ abstract class Web3WalletServiceBase with Store {
   @observable
   ObservableList<StoredCacao> auth;
 
-  Web3WalletServiceBase(this._bottomSheetHandler, this.walletKeyService, this.appStore)
+  Web3WalletServiceBase(
+      this._bottomSheetHandler, this.walletKeyService, this.appStore, this.sharedPreferences)
       : pairings = ObservableList<PairingInfo>(),
         sessions = ObservableList<SessionData>(),
         auth = ObservableList<StoredCacao>(),
@@ -191,13 +196,6 @@ abstract class Web3WalletServiceBase with Store {
     _refreshPairings();
   }
 
-  @action
-  void _refreshPairings() {
-    pairings.clear();
-    final allPairings = _web3Wallet.pairings.getAll();
-    pairings.addAll(allPairings);
-  }
-
   Future<void> _onSessionProposalError(SessionProposalErrorEvent? args) async {
     log(args.toString());
   }
@@ -260,14 +258,37 @@ abstract class Web3WalletServiceBase with Store {
     }
   }
 
+  @action
+  void _refreshPairings() {
+    print('Refreshing pairings');
+    pairings.clear();
+
+    final allPairings = _web3Wallet.pairings.getAll();
+
+    final keyForWallet = getKeyForStoringTopicsForWallet();
+
+    final currentTopicsForWallet = getPairingTopicsForWallet(keyForWallet);
+
+    final filteredPairings =
+        allPairings.where((pairing) => currentTopicsForWallet.contains(pairing.topic)).toList();
+
+    pairings.addAll(filteredPairings);
+  }
+
   void _onPairingCreate(PairingEvent? args) {
     log('Pairing Create Event: $args');
   }
 
   @action
-  void _onSessionConnect(SessionConnect? args) {
+  Future<void> _onSessionConnect(SessionConnect? args) async {
     if (args != null) {
+      log('Session Connected $args');
+
+      await savePairingTopicToLocalStorage(args.session.pairingTopic);
+
       sessions.add(args.session);
+
+      _refreshPairings();
     }
   }
 
@@ -335,4 +356,53 @@ abstract class Web3WalletServiceBase with Store {
   List<SessionData> getSessionsForPairingInfo(PairingInfo pairing) {
     return sessions.where((element) => element.pairingTopic == pairing.topic).toList();
   }
+
+  String getKeyForStoringTopicsForWallet() {
+    List<ChainKeyModel> chainKeys = walletKeyService.getKeysForChain(appStore.wallet!);
+
+    final keyForPairingTopic =
+        PreferencesKey.walletConnectPairingTopicsListForWallet(chainKeys.first.publicKey);
+
+    return keyForPairingTopic;
+  }
+
+  List<String> getPairingTopicsForWallet(String key) {
+    // Get the JSON-encoded string from shared preferences
+    final jsonString = sharedPreferences.getString(key);
+
+    // If the string is null, return an empty list
+    if (jsonString == null) {
+      return [];
+    }
+
+    // Decode the JSON string to a list of strings
+    final List<dynamic> jsonList = jsonDecode(jsonString) as List<dynamic>;
+
+    // Cast each item to a string
+    return jsonList.map((item) => item as String).toList();
+  }
+
+  Future<void> savePairingTopicToLocalStorage(String pairingTopic) async {
+    // Get key specific to the current wallet
+    final key = getKeyForStoringTopicsForWallet();
+
+    // Get all pairing topics attached to this key
+    final pairingTopicsForWallet = getPairingTopicsForWallet(key);
+
+    print(pairingTopicsForWallet);
+
+    bool isPairingTopicAlreadySaved = pairingTopicsForWallet.contains(pairingTopic);
+    print('Is Pairing Topic Saved: $isPairingTopicAlreadySaved');
+
+    if (!isPairingTopicAlreadySaved) {
+      // Update the list with the most recent pairing topic
+      pairingTopicsForWallet.add(pairingTopic);
+
+      // Convert the list of updated pairing topics to a JSON-encoded string
+      final jsonString = jsonEncode(pairingTopicsForWallet);
+
+      // Save the encoded string to shared preferences
+      await sharedPreferences.setString(key, jsonString);
+    }
+  }
 }

lib/di.dart

@@ -493,6 +493,7 @@ Future<void> setup({
       getIt.get<BottomSheetService>(),
       getIt.get<WalletConnectKeyService>(),
       appStore,
+      getIt.get<SharedPreferences>()
     );
     web3WalletService.create();
     return web3WalletService;

lib/entities/preferences_key.dart

@@ -75,4 +75,7 @@ class PreferencesKey {
   static const shouldShowMarketPlaceInDashboard = 'should_show_marketplace_in_dashboard';
   static const isNewInstall = 'is_new_install';
   static const serviceStatusShaKey = 'service_status_sha_key';
+  static const walletConnectPairingTopicsList = 'wallet_connect_pairing_topics_list';
+  static String walletConnectPairingTopicsListForWallet(String publicKey) =>
+      '${PreferencesKey.walletConnectPairingTopicsList}_${publicKey}';
 }

lib/src/screens/wallet_connect/widgets/pairing_item_widget.dart

@@ -30,7 +30,7 @@ class PairingItemWidget extends StatelessWidget {
       leading: CakeImageWidget(
         imageUrl: metadata.icons.isNotEmpty ?  metadata.icons[0]: null,
         displayOnError: CircleAvatar(
-          backgroundImage: AssetImage('assets/images/default_icon.png'),
+          backgroundImage: AssetImage('assets/images/walletconnect_logo.png'),
         ),
       ),
       title: Text(