WIP: update changes from the dart client

Author: AlaaElattar

app/lib/services/stellar_service.dart

@@ -100,8 +100,11 @@ Future<String> getBalanceByAccountId(String accountId) async {
 }
 
 Future<Stream<OrderBook>> listOrderBook(
-    String secret, String sellingAssetCode, String buyingAssetCode) async {
-  final stream = await getOrderBook();
+    String secret, Asset sellingAsset, Asset buyingAsset) async {
+  final stream = await getOrderBook(
+      horizonUrl: 'https://horizon.stellar.org/',
+      sellingAsset: sellingAsset,
+      buyingAsset: buyingAsset);
 
   return stream.map((orderBookResponse) {
     return OrderBook(
@@ -212,7 +215,8 @@ Future<List<Offer>> getActiveOrders(String secret) async {
 
 Future<List<Offer>> getOrdersHistory(String secret) async {
   final client = Client(NetworkType.PUBLIC, secret);
-  final orders = await client.getTradingHistory(client.accountId);
+  final orders = await getTradingHistory(
+      network: NetworkType.PUBLIC, accountId: client.accountId);
   return orders.map((order) => Offer.fromTradeResponse(order)).toList();
 }
 
@@ -226,22 +230,14 @@ Future<bool> createOrder(String secret, String sellingAssetCode,
       price: price);
 }
 
-Future<bool> cancelOrder(String secret, String sellingAssetCode,
-    String buyingAssetCode, String offerID) async {
+Future<bool> cancelOrder(String secret, String offerID) async {
   final client = Client(NetworkType.PUBLIC, secret);
-  return await client.cancelOrder(
-      sellingAssetCode: sellingAssetCode,
-      buyingAssetCode: buyingAssetCode,
-      offerId: offerID);
+  return await client.cancelOrder(offerId: offerID);
 }
 
-Future<bool> updateOrder(String secret, String sellingAssetCode,
-    String buyingAssetCode, String amount, String price, String offerID) async {
+Future<bool> updateOrder(
+    String secret, String amount, String price, String offerID) async {
   final client = Client(NetworkType.PUBLIC, secret);
   return await client.updateOrder(
-      sellingAssetCode: sellingAssetCode,
-      buyingAssetCode: buyingAssetCode,
-      amount: amount,
-      price: price,
-      offerId: offerID);
+      amount: amount, price: price, offerId: offerID);
 }

app/lib/widgets/market/buy_tft.dart

@@ -115,9 +115,9 @@ class _BuyTFTWidgetState extends State<BuyTFTWidget> {
   }
 
   bool _checkForChanges() {
-     final boolean = (amountController.text != widget.offer!.amount) ||
-          (priceController.text != widget.offer!.price);
-          return boolean;
+    final boolean = (amountController.text != widget.offer!.amount) ||
+        (priceController.text != widget.offer!.price);
+    return boolean;
   }
 
   _createOrder() async {
@@ -192,13 +192,8 @@ class _BuyTFTWidgetState extends State<BuyTFTWidget> {
       loading = true;
     });
     try {
-      final success = await Stellar.updateOrder(
-          widget.wallet.stellarSecret,
-          'USDC',
-          'TFT',
-          amountController.text,
-          priceController.text,
-          widget.offer!.id);
+      final success = await Stellar.updateOrder(widget.wallet.stellarSecret,
+          amountController.text, priceController.text, widget.offer!.id);
       if (success) {
         showDialog(
           barrierDismissible: false,

app/lib/widgets/market/order_book.dart

@@ -1,4 +1,5 @@
 import 'package:flutter/material.dart';
+import 'package:stellar_flutter_sdk/stellar_flutter_sdk.dart';
 import 'package:threebotlogin/models/order_book.dart';
 import 'package:threebotlogin/services/stellar_service.dart';
 
@@ -21,7 +22,12 @@ class _OrderbookWidgetState extends State<OrderbookWidget> {
   }
 
   void _loadOrderBook() async {
-    _orderBookStream = await listOrderBook(widget.secret, 'USDC', 'TFT');
+    _orderBookStream = await listOrderBook(
+        widget.secret,
+        AssetTypeCreditAlphaNum4(
+            'USDC', 'GA5ZSEJYB37JRC5AVCIA5MOP4RHTM335X2KGX3IHOJAPP5RE34K4KZVN'),
+        AssetTypeCreditAlphaNum4(
+            'TFT', 'GBOVQKJYHXRR3DX6NOX2RRYFRCUMSADGDESTDNBDS6CDVLGVESRTAC47'));
     setState(() {});
   }
 

app/lib/widgets/market/order_details.dart

@@ -32,7 +32,7 @@ class _OrderDetailsWidgetState extends State<OrderDetailsWidget> {
     });
     try {
       final success = await Stellar.cancelOrder(
-          widget.selectedWallet.stellarSecret, 'USDC', 'TFT', widget.offer.id);
+          widget.selectedWallet.stellarSecret, widget.offer.id);
       OrderNotifier.emitUpdate();
       if (success) {
         showDialog(