From 4f58483e82223e34b2356e5bd2bc2c27f33979c3 Mon Sep 17 00:00:00 2001
From: julian <julian@cypherstack.com>
Date: Mon, 30 Jan 2023 14:08:21 -0600
Subject: [PATCH] show min/max crypto amounts returned by simplex api on quote
 request

---
 lib/pages/buy_view/buy_form.dart          | 49 ++++++++++++-----------
 lib/services/buy/buy_response.dart        |  6 ++-
 lib/services/buy/simplex/simplex_api.dart | 21 ++++++++--
 3 files changed, 47 insertions(+), 29 deletions(-)

diff --git a/lib/pages/buy_view/buy_form.dart b/lib/pages/buy_view/buy_form.dart
index a46238188..051afcf71 100644
--- a/lib/pages/buy_view/buy_form.dart
+++ b/lib/pages/buy_view/buy_form.dart
@@ -531,25 +531,25 @@ class _BuyFormState extends ConsumerState<BuyForm> {
       }
     } else {
       // Error; probably amount out of bounds
-      String errorMessage = "${quoteResponse.exception?.errorMessage}";
-      if (errorMessage.contains('must be between')) {
-        errorMessage = errorMessage.substring(
-            errorMessage.indexOf('getQuote exception: ') + 20,
-            errorMessage.indexOf(", value: null"));
-        _BuyFormState.boundedCryptoTicker = errorMessage.substring(
-            errorMessage.indexOf('The ') + 4,
-            errorMessage.indexOf(' amount must be between'));
-        _BuyFormState.minCrypto = Decimal.parse(errorMessage.substring(
-            errorMessage.indexOf('must be between ') + 16,
-            errorMessage.indexOf(' and ')));
-        _BuyFormState.maxCrypto = Decimal.parse(errorMessage.substring(
-            errorMessage.indexOf("$minCrypto and ") + "$minCrypto and ".length,
-            errorMessage.length));
-        if (Decimal.parse(_buyAmountController.text) >
-            _BuyFormState.maxCrypto) {
-          _buyAmountController.text = _BuyFormState.maxCrypto.toString();
-        }
-      }
+      // String errorMessage = "${quoteResponse.exception?.errorMessage}";
+      // if (errorMessage.contains('must be between')) {
+      //   errorMessage = errorMessage.substring(
+      //       errorMessage.indexOf('getQuote exception: ') + 20,
+      //       errorMessage.indexOf(", value: null"));
+      //   _BuyFormState.boundedCryptoTicker = errorMessage.substring(
+      //       errorMessage.indexOf('The ') + 4,
+      //       errorMessage.indexOf(' amount must be between'));
+      //   _BuyFormState.minCrypto = Decimal.parse(errorMessage.substring(
+      //       errorMessage.indexOf('must be between ') + 16,
+      //       errorMessage.indexOf(' and ')));
+      //   _BuyFormState.maxCrypto = Decimal.parse(errorMessage.substring(
+      //       errorMessage.indexOf("$minCrypto and ") + "$minCrypto and ".length,
+      //       errorMessage.length));
+      //   if (Decimal.parse(_buyAmountController.text) >
+      //       _BuyFormState.maxCrypto) {
+      //     _buyAmountController.text = _BuyFormState.maxCrypto.toString();
+      //   }
+      // }
       await showDialog<dynamic>(
         context: context,
         barrierDismissible: true,
@@ -571,7 +571,7 @@ class _BuyFormState extends ConsumerState<BuyForm> {
                       height: 24,
                     ),
                     Text(
-                      errorMessage,
+                      quoteResponse.exception!.errorMessage,
                       style: STextStyles.smallMed14(context),
                     ),
                     const SizedBox(
@@ -633,10 +633,11 @@ class _BuyFormState extends ConsumerState<BuyForm> {
         level: LogLevel.Warning,
       );
       return BuyResponse(
-        exception: BuyException(
-          response.toString(),
-          BuyExceptionType.generic,
-        ),
+        exception: response.exception ??
+            BuyException(
+              response.toString(),
+              BuyExceptionType.generic,
+            ),
       );
     }
   }
diff --git a/lib/services/buy/buy_response.dart b/lib/services/buy/buy_response.dart
index 3198d0a19..6510ece4c 100644
--- a/lib/services/buy/buy_response.dart
+++ b/lib/services/buy/buy_response.dart
@@ -1,4 +1,8 @@
-enum BuyExceptionType { generic, serializeResponseError }
+enum BuyExceptionType {
+  generic,
+  serializeResponseError,
+  cryptoAmountOutOfRange,
+}
 
 class BuyException implements Exception {
   String errorMessage;
diff --git a/lib/services/buy/simplex/simplex_api.dart b/lib/services/buy/simplex/simplex_api.dart
index 4060567f0..85b4d5d9e 100644
--- a/lib/services/buy/simplex/simplex_api.dart
+++ b/lib/services/buy/simplex/simplex_api.dart
@@ -210,7 +210,20 @@ class SimplexAPI {
 
   BuyResponse<SimplexQuote> _parseQuote(dynamic jsonArray) {
     try {
-      String cryptoAmount = "${jsonArray['digital_money']['amount']}";
+      // final Map<String, dynamic> lol =
+      //     Map<String, dynamic>.from(jsonArray as Map);
+
+      String? cryptoAmount = jsonArray['digital_money']?['amount'] as String?;
+
+      if (cryptoAmount == null) {
+        String error = jsonArray['error'] as String;
+        return BuyResponse(
+          exception: BuyException(
+            error,
+            BuyExceptionType.cryptoAmountOutOfRange,
+          ),
+        );
+      }
 
       SimplexQuote quote = jsonArray['quote'] as SimplexQuote;
       final SimplexQuote _quote = SimplexQuote(
@@ -277,9 +290,9 @@ class SimplexAPI {
       }
       final jsonArray = jsonDecode(res.body); // TODO check if valid json
       if (jsonArray.containsKey('error') as bool) {
-      if (jsonArray['error'] == true || jsonArray['error'] == 'true') {
-        throw Exception(jsonArray['message']);
-      }
+        if (jsonArray['error'] == true || jsonArray['error'] == 'true') {
+          throw Exception(jsonArray['message']);
+        }
       }
 
       SimplexOrder _order = SimplexOrder(