From 82b9770fe2a4aa9d85e7cde4fa37007f9eedda2c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Francisco=20Calder=C3=B3n?= <fjcalderon@gmail.com>
Date: Wed, 20 Aug 2025 10:11:48 -0300
Subject: [PATCH 01/10] Range validation feature in Add Order screen
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Key Features Added:
- Real-time validation: Checks fiat amounts against Mostro instance min/max limits
- Multi-language support: Added validation messages in English, Spanish, and Italian
- Exchange rate integration: Automatically converts fiat to sats using current exchange rates
- User-friendly errors: Shows specific messages for amounts that are too high or too low
- Form integration: Prevents submission when amounts are outside allowed range

Files Modified:
- lib/l10n/intl_*.arb - Added localized validation messages
- lib/features/order/screens/add_order_screen.dart - Added helper functions and validation logic
- lib/features/order/widgets/amount_section.dart - Enhanced form validation

Technical Details:
- Uses ref.read(orderRepositoryProvider).mostroInstance to get min/max limits
- Calculates sats using formula: fiatAmount / exchangeRate * 100000000
- Validates both min and max amount fields in range orders
- Shows validation errors immediately as user types
- Prevents form submission with clear error messages

Validation Messages:
- Too high: "The fiat amount is too high, please add a new fiat amount, the allowed range is
between X and Y sats"
- Too low: "The fiat amount is too low, please add a new fiat amount, the allowed range is between
X and Y sats"

Quality Assurance:
- ✅ Zero Flutter analyzer issues
- ✅ Successful build compilation
- ✅ Follows existing code patterns
- ✅ No changes to Mostro message sending logic
- ✅ Maintains backward compatibility
---
 android/app/build.gradle                      |   2 +-
 .../order/screens/add_order_screen.dart       | 129 ++++++++++++++++--
 .../order/widgets/amount_section.dart         |  26 ++++
 lib/l10n/intl_en.arb                          |  28 ++++
 lib/l10n/intl_es.arb                          |  28 ++++
 lib/l10n/intl_it.arb                          |  28 ++++
 pubspec.lock                                  |  28 ++--
 7 files changed, 245 insertions(+), 24 deletions(-)

diff --git a/android/app/build.gradle b/android/app/build.gradle
index 996fcf6b..87f45ddf 100644
--- a/android/app/build.gradle
+++ b/android/app/build.gradle
@@ -26,7 +26,7 @@ android {
         applicationId = "network.mostro.app"
         // You can update the following values to match your application needs.
         // For more information, see: https://flutter.dev/to/review-gradle-config.
-        minSdk = 23 // flutter.minSdkVersion
+        minSdkVersion flutter.minSdkVersion // flutter.minSdkVersion
         targetSdk = flutter.targetSdkVersion
         versionCode = flutter.versionCode
         versionName = flutter.versionName
diff --git a/lib/features/order/screens/add_order_screen.dart b/lib/features/order/screens/add_order_screen.dart
index 4c875653..95b45594 100644
--- a/lib/features/order/screens/add_order_screen.dart
+++ b/lib/features/order/screens/add_order_screen.dart
@@ -15,6 +15,8 @@ import 'package:mostro_mobile/features/order/widgets/premium_section.dart';
 import 'package:mostro_mobile/features/order/widgets/price_type_section.dart';
 import 'package:mostro_mobile/features/order/widgets/form_section.dart';
 import 'package:mostro_mobile/shared/providers/exchange_service_provider.dart';
+import 'package:mostro_mobile/shared/providers/order_repository_provider.dart';
+import 'package:mostro_mobile/features/mostro/mostro_instance.dart';
 import 'package:mostro_mobile/features/settings/settings_provider.dart';
 import 'package:uuid/uuid.dart';
 import 'package:mostro_mobile/generated/l10n.dart';
@@ -63,10 +65,12 @@ class _AddOrderScreenState extends ConsumerState<AddOrderScreen> {
 
       // Reset selectedFiatCodeProvider to default from settings for each new order
       final settings = ref.read(settingsProvider);
-      ref.read(selectedFiatCodeProvider.notifier).state = settings.defaultFiatCode;
-      
+      ref.read(selectedFiatCodeProvider.notifier).state =
+          settings.defaultFiatCode;
+
       // Pre-populate lightning address from settings if available
-      if (settings.defaultLightningAddress != null && settings.defaultLightningAddress!.isNotEmpty) {
+      if (settings.defaultLightningAddress != null &&
+          settings.defaultLightningAddress!.isNotEmpty) {
         _lightningAddressController.text = settings.defaultLightningAddress!;
       }
     });
@@ -88,6 +92,67 @@ class _AddOrderScreenState extends ConsumerState<AddOrderScreen> {
     });
   }
 
+  /// Converts fiat amount to sats using exchange rate
+  /// Formula: fiatAmount / exchangeRate * 100000000 (sats per BTC)
+  int _calculateSatsFromFiat(double fiatAmount, double exchangeRate) {
+    if (exchangeRate <= 0) return 0;
+    return (fiatAmount / exchangeRate * 100000000).round();
+  }
+
+  /// Validates if sats amount is within mostro instance allowed range
+  /// Returns error message if validation fails or data is missing
+  String? _validateSatsRange(double fiatAmount) {
+    // Ensure fiat code is selected
+    final selectedFiatCode = ref.read(selectedFiatCodeProvider);
+    if (selectedFiatCode == null || selectedFiatCode.isEmpty) {
+      return S.of(context)!.pleaseSelectCurrency;
+    }
+
+    // Get exchange rate - return error if not available
+    final exchangeRateAsync = ref.read(exchangeRateProvider(selectedFiatCode));
+    final exchangeRate = exchangeRateAsync.asData?.value;
+    if (exchangeRate == null) {
+      // Check if it's loading or error
+      if (exchangeRateAsync.isLoading) {
+        return S.of(context)!.exchangeRateNotAvailable;
+      } else if (exchangeRateAsync.hasError) {
+        return S.of(context)!.exchangeRateNotAvailable;
+      }
+      // Fallback for any other case where rate is null
+      return S.of(context)!.exchangeRateNotAvailable;
+    }
+
+    // Get mostro instance limits - return error if not available
+    final mostroInstance = ref.read(orderRepositoryProvider).mostroInstance;
+    if (mostroInstance == null) {
+      return S.of(context)!.mostroInstanceNotAvailable;
+    }
+
+    // Calculate sats equivalent
+    final satsAmount = _calculateSatsFromFiat(fiatAmount, exchangeRate);
+    final minAllowed = mostroInstance.minOrderAmount;
+    final maxAllowed = mostroInstance.maxOrderAmount;
+
+    // Debug logging
+    debugPrint('Validation: fiat=$fiatAmount, rate=$exchangeRate, sats=$satsAmount, min=$minAllowed, max=$maxAllowed');
+
+    // Check if sats amount is outside range
+    if (satsAmount < minAllowed) {
+      return S.of(context)!.fiatAmountTooLow(
+        minAllowed.toString(),
+        maxAllowed.toString(),
+      );
+    } else if (satsAmount > maxAllowed) {
+      return S.of(context)!.fiatAmountTooHigh(
+        minAllowed.toString(),
+        maxAllowed.toString(),
+      );
+    }
+
+    // Validation passed
+    return null;
+  }
+
   @override
   Widget build(BuildContext context) {
     return Scaffold(
@@ -137,6 +202,7 @@ class _AddOrderScreenState extends ConsumerState<AddOrderScreen> {
                         AmountSection(
                           orderType: _orderType,
                           onAmountChanged: _onAmountChanged,
+                          validateSatsRange: _validateSatsRange,
                         ),
                         const SizedBox(height: 16),
                         PaymentMethodsSection(
@@ -271,6 +337,54 @@ class _AddOrderScreenState extends ConsumerState<AddOrderScreen> {
         return;
       }
 
+      // Enhanced validation: check sats range for both min and max amounts
+      // This is a critical final validation before submission
+      if (_minFiatAmount != null) {
+        final minRangeError = _validateSatsRange(_minFiatAmount!.toDouble());
+        if (minRangeError != null) {
+          debugPrint('Submission blocked: Min amount validation failed: $minRangeError');
+          ScaffoldMessenger.of(context).showSnackBar(
+            SnackBar(
+              content: Text(minRangeError),
+              duration: const Duration(seconds: 4),
+              backgroundColor: Colors.red.withValues(alpha: 0.8),
+            ),
+          );
+          return;
+        }
+      }
+
+      if (_maxFiatAmount != null) {
+        final maxRangeError = _validateSatsRange(_maxFiatAmount!.toDouble());
+        if (maxRangeError != null) {
+          debugPrint('Submission blocked: Max amount validation failed: $maxRangeError');
+          ScaffoldMessenger.of(context).showSnackBar(
+            SnackBar(
+              content: Text(maxRangeError),
+              duration: const Duration(seconds: 4),
+              backgroundColor: Colors.red.withValues(alpha: 0.8),
+            ),
+          );
+          return;
+        }
+      }
+
+      // Additional safety check: ensure we have valid data for submission
+      final exchangeRateAsync = ref.read(exchangeRateProvider(fiatCode));
+      final mostroInstance = ref.read(orderRepositoryProvider).mostroInstance;
+      
+      if (!exchangeRateAsync.hasValue || mostroInstance == null) {
+        debugPrint('Submission blocked: Required data not available - Exchange rate: ${exchangeRateAsync.hasValue}, Mostro instance: ${mostroInstance != null}');
+        ScaffoldMessenger.of(context).showSnackBar(
+          SnackBar(
+            content: Text(S.of(context)!.exchangeRateNotAvailable),
+            duration: const Duration(seconds: 3),
+            backgroundColor: Colors.orange.withValues(alpha: 0.8),
+          ),
+        );
+        return;
+      }
+
       try {
         final uuid = const Uuid();
         final tempOrderId = uuid.v4();
@@ -290,32 +404,29 @@ class _AddOrderScreenState extends ConsumerState<AddOrderScreen> {
 
         final satsAmount = int.tryParse(_satsAmountController.text) ?? 0;
 
-
         List<String> paymentMethods =
             List<String>.from(_selectedPaymentMethods);
         if (_showCustomPaymentMethod &&
             _customPaymentMethodController.text.isNotEmpty) {
-
           // Remove localized "Other" (case-insensitive, trimmed) from the list
           final localizedOther = S.of(context)!.other.trim().toLowerCase();
           paymentMethods.removeWhere(
             (method) => method.trim().toLowerCase() == localizedOther,
           );
-          
+
           String sanitizedPaymentMethod = _customPaymentMethodController.text;
-          
+
           final problematicChars = RegExp(r'[,"\\\[\]{}]');
           sanitizedPaymentMethod = sanitizedPaymentMethod
               .replaceAll(problematicChars, ' ')
               .replaceAll(RegExp(r'\s+'), ' ')
               .trim();
-              
+
           if (sanitizedPaymentMethod.isNotEmpty) {
             paymentMethods.add(sanitizedPaymentMethod);
           }
         }
 
-
         final buyerInvoice = _orderType == OrderType.buy &&
                 _lightningAddressController.text.isNotEmpty
             ? _lightningAddressController.text
diff --git a/lib/features/order/widgets/amount_section.dart b/lib/features/order/widgets/amount_section.dart
index 285efba8..e9e6537f 100644
--- a/lib/features/order/widgets/amount_section.dart
+++ b/lib/features/order/widgets/amount_section.dart
@@ -7,11 +7,13 @@ import 'package:mostro_mobile/generated/l10n.dart';
 class AmountSection extends StatefulWidget {
   final OrderType orderType;
   final Function(int? minAmount, int? maxAmount) onAmountChanged;
+  final String? Function(double)? validateSatsRange;
 
   const AmountSection({
     super.key,
     required this.orderType,
     required this.onAmountChanged,
+    this.validateSatsRange,
   });
 
   @override
@@ -125,6 +127,18 @@ class _AmountSectionState extends State<AmountSection> {
     if (int.tryParse(value) == null) {
       return S.of(context)!.pleaseEnterValidAmount;
     }
+
+    // Check sats range validation if callback provided
+    if (widget.validateSatsRange != null) {
+      final fiatAmount = double.tryParse(value);
+      if (fiatAmount != null) {
+        final rangeError = widget.validateSatsRange!(fiatAmount);
+        if (rangeError != null) {
+          return rangeError;
+        }
+      }
+    }
+    
     return null;
   }
 
@@ -141,6 +155,18 @@ class _AmountSectionState extends State<AmountSection> {
     if (minAmount != null && maxAmount != null && maxAmount <= minAmount) {
       return S.of(context)!.maxMustBeGreaterThanMin;
     }
+
+    // Check sats range validation if callback provided
+    if (widget.validateSatsRange != null) {
+      final fiatAmount = double.tryParse(value);
+      if (fiatAmount != null) {
+        final rangeError = widget.validateSatsRange!(fiatAmount);
+        if (rangeError != null) {
+          return rangeError;
+        }
+      }
+    }
+
     return null;
   }
 
diff --git a/lib/l10n/intl_en.arb b/lib/l10n/intl_en.arb
index 0b8be7b0..f962edb7 100644
--- a/lib/l10n/intl_en.arb
+++ b/lib/l10n/intl_en.arb
@@ -369,6 +369,34 @@
   "enterAmountHint": "Enter amount",
   "pleaseEnterAmount": "Please enter an amount",
   "pleaseEnterValidAmount": "Please enter a valid amount",
+  "fiatAmountTooHigh": "The fiat amount is too high, please add a new fiat amount, the allowed range is between {minAmount} and {maxAmount} sats",
+  "@fiatAmountTooHigh": {
+    "placeholders": {
+      "minAmount": {
+        "type": "String",
+        "description": "The minimum allowed sats amount"
+      },
+      "maxAmount": {
+        "type": "String",
+        "description": "The maximum allowed sats amount"
+      }
+    }
+  },
+  "fiatAmountTooLow": "The fiat amount is too low, please add a new fiat amount, the allowed range is between {minAmount} and {maxAmount} sats",
+  "@fiatAmountTooLow": {
+    "placeholders": {
+      "minAmount": {
+        "type": "String",
+        "description": "The minimum allowed sats amount"
+      },
+      "maxAmount": {
+        "type": "String",
+        "description": "The maximum allowed sats amount"
+      }
+    }
+  },
+  "exchangeRateNotAvailable": "Exchange rate not available, please wait or refresh",
+  "mostroInstanceNotAvailable": "Mostro instance data not available, please wait",
   "enterAmountYouWantToReceive": "Enter amount you want to receive",
   "enterAmountYouWantToSend": "Enter amount you want to send",
   "creatingRangeOrder": "Creating a range order (you can receive between min and max amounts)",
diff --git a/lib/l10n/intl_es.arb b/lib/l10n/intl_es.arb
index f69dd0bc..5fb511a6 100644
--- a/lib/l10n/intl_es.arb
+++ b/lib/l10n/intl_es.arb
@@ -325,6 +325,34 @@
   "enterAmountHint": "Ingresa cantidad",
   "pleaseEnterAmount": "Por favor ingresa una cantidad",
   "pleaseEnterValidAmount": "Por favor ingresa una cantidad válida",
+  "fiatAmountTooHigh": "La cantidad fiat es demasiado alta, por favor ingresa una nueva cantidad fiat, el rango permitido está entre {minAmount} y {maxAmount} sats",
+  "@fiatAmountTooHigh": {
+    "placeholders": {
+      "minAmount": {
+        "type": "String",
+        "description": "The minimum allowed sats amount"
+      },
+      "maxAmount": {
+        "type": "String",
+        "description": "The maximum allowed sats amount"
+      }
+    }
+  },
+  "fiatAmountTooLow": "La cantidad fiat es demasiado baja, por favor ingresa una nueva cantidad fiat, el rango permitido está entre {minAmount} y {maxAmount} sats",
+  "@fiatAmountTooLow": {
+    "placeholders": {
+      "minAmount": {
+        "type": "String",
+        "description": "The minimum allowed sats amount"
+      },
+      "maxAmount": {
+        "type": "String",
+        "description": "The maximum allowed sats amount"
+      }
+    }
+  },
+  "exchangeRateNotAvailable": "Tasa de cambio no disponible, por favor espera o actualiza",
+  "mostroInstanceNotAvailable": "Datos de instancia Mostro no disponibles, por favor espera",
   "enterAmountYouWantToReceive": "Ingresa la cantidad que quieres recibir",
   "enterAmountYouWantToSend": "Ingresa la cantidad que quieres enviar",
   "creatingRangeOrder": "Creando orden de rango (puedes recibir entre cantidades mínima y máxima)",
diff --git a/lib/l10n/intl_it.arb b/lib/l10n/intl_it.arb
index 57a3bc21..f1822791 100644
--- a/lib/l10n/intl_it.arb
+++ b/lib/l10n/intl_it.arb
@@ -330,6 +330,34 @@
   "enterAmountHint": "Inserisci importo",
   "pleaseEnterAmount": "Per favore inserisci un importo",
   "pleaseEnterValidAmount": "Per favore inserisci un importo valido",
+  "fiatAmountTooHigh": "L'importo fiat è troppo alto, per favore inserisci un nuovo importo fiat, l'intervallo consentito è tra {minAmount} e {maxAmount} sats",
+  "@fiatAmountTooHigh": {
+    "placeholders": {
+      "minAmount": {
+        "type": "String",
+        "description": "The minimum allowed sats amount"
+      },
+      "maxAmount": {
+        "type": "String",
+        "description": "The maximum allowed sats amount"
+      }
+    }
+  },
+  "fiatAmountTooLow": "L'importo fiat è troppo basso, per favore inserisci un nuovo importo fiat, l'intervallo consentito è tra {minAmount} e {maxAmount} sats",
+  "@fiatAmountTooLow": {
+    "placeholders": {
+      "minAmount": {
+        "type": "String",
+        "description": "The minimum allowed sats amount"
+      },
+      "maxAmount": {
+        "type": "String",
+        "description": "The maximum allowed sats amount"
+      }
+    }
+  },
+  "exchangeRateNotAvailable": "Tasso di cambio non disponibile, per favore attendi o aggiorna",
+  "mostroInstanceNotAvailable": "Dati dell'istanza Mostro non disponibili, per favore attendi",
   "enterAmountYouWantToReceive": "Inserisci l'importo che vuoi ricevere",
   "enterAmountYouWantToSend": "Inserisci l'importo che vuoi inviare",
   "creatingRangeOrder": "Creazione ordine intervallo (puoi ricevere tra importi minimo e massimo)",
diff --git a/pubspec.lock b/pubspec.lock
index 7b9f004e..428fbca1 100644
--- a/pubspec.lock
+++ b/pubspec.lock
@@ -840,26 +840,26 @@ packages:
     dependency: transitive
     description:
       name: leak_tracker
-      sha256: "6bb818ecbdffe216e81182c2f0714a2e62b593f4a4f13098713ff1685dfb6ab0"
+      sha256: "8dcda04c3fc16c14f48a7bb586d4be1f0d1572731b6d81d51772ef47c02081e0"
       url: "https://pub.dev"
     source: hosted
-    version: "10.0.9"
+    version: "11.0.1"
   leak_tracker_flutter_testing:
     dependency: transitive
     description:
       name: leak_tracker_flutter_testing
-      sha256: f8b613e7e6a13ec79cfdc0e97638fddb3ab848452eff057653abd3edba760573
+      sha256: "1dbc140bb5a23c75ea9c4811222756104fbcd1a27173f0c34ca01e16bea473c1"
       url: "https://pub.dev"
     source: hosted
-    version: "3.0.9"
+    version: "3.0.10"
   leak_tracker_testing:
     dependency: transitive
     description:
       name: leak_tracker_testing
-      sha256: "6ba465d5d76e67ddf503e1161d1f4a6bc42306f9d66ca1e8f079a47290fb06d3"
+      sha256: "8d5a2d49f4a66b49744b23b018848400d23e54caf9463f4eb20df3eb8acb2eb1"
       url: "https://pub.dev"
     source: hosted
-    version: "3.0.1"
+    version: "3.0.2"
   lints:
     dependency: transitive
     description:
@@ -1462,26 +1462,26 @@ packages:
     dependency: "direct dev"
     description:
       name: test
-      sha256: "301b213cd241ca982e9ba50266bd3f5bd1ea33f1455554c5abb85d1be0e2d87e"
+      sha256: "65e29d831719be0591f7b3b1a32a3cda258ec98c58c7b25f7b84241bc31215bb"
       url: "https://pub.dev"
     source: hosted
-    version: "1.25.15"
+    version: "1.26.2"
   test_api:
     dependency: transitive
     description:
       name: test_api
-      sha256: fb31f383e2ee25fbbfe06b40fe21e1e458d14080e3c67e7ba0acfde4df4e0bbd
+      sha256: "522f00f556e73044315fa4585ec3270f1808a4b186c936e612cab0b565ff1e00"
       url: "https://pub.dev"
     source: hosted
-    version: "0.7.4"
+    version: "0.7.6"
   test_core:
     dependency: transitive
     description:
       name: test_core
-      sha256: "84d17c3486c8dfdbe5e12a50c8ae176d15e2a771b96909a9442b40173649ccaa"
+      sha256: "80bf5a02b60af04b09e14f6fe68b921aad119493e26e490deaca5993fef1b05a"
       url: "https://pub.dev"
     source: hosted
-    version: "0.6.8"
+    version: "0.6.11"
   timeago:
     dependency: "direct main"
     description:
@@ -1614,10 +1614,10 @@ packages:
     dependency: transitive
     description:
       name: vector_math
-      sha256: "80b3257d1492ce4d091729e3a67a60407d227c27241d6927be0130c98e741803"
+      sha256: d530bd74fea330e6e364cda7a85019c434070188383e1cd8d9777ee586914c5b
       url: "https://pub.dev"
     source: hosted
-    version: "2.1.4"
+    version: "2.2.0"
   vm_service:
     dependency: transitive
     description:

From 09931688263e8008de39bd0f5785515a5b7abc26 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Francisco=20Calder=C3=B3n?= <fjcalderon@gmail.com>
Date: Wed, 20 Aug 2025 10:57:33 -0300
Subject: [PATCH 02/10] Fiat Amount Validation Centralized Successfully
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

All these errors now display in the same red widget at bottom of card:

1. Empty field: "Please enter an amount"
2. Max ≤ Min: "Max must be greater than min" ✅ Fixed!
3. Too low sats: "The fiat amount is too low, please add a new fiat amount, the allowed range is
between X and Y sats"
4. Too high sats: "The fiat amount is too high, please add a new fiat amount, the allowed range is
  between X and Y sats"
5. Exchange rate unavailable: "Exchange rate not available, please wait or refresh"
6. Mostro instance unavailable: "Mostro instance data not available, please wait"
---
 .../order/screens/add_order_screen.dart       | 72 +++++++++------
 .../order/widgets/amount_section.dart         | 89 +++++++++++--------
 2 files changed, 93 insertions(+), 68 deletions(-)

diff --git a/lib/features/order/screens/add_order_screen.dart b/lib/features/order/screens/add_order_screen.dart
index 95b45594..99564ec3 100644
--- a/lib/features/order/screens/add_order_screen.dart
+++ b/lib/features/order/screens/add_order_screen.dart
@@ -42,6 +42,7 @@ class _AddOrderScreenState extends ConsumerState<AddOrderScreen> {
 
   int? _minFiatAmount;
   int? _maxFiatAmount;
+  String? _validationError;
 
   List<String> _selectedPaymentMethods = [];
   bool _showCustomPaymentMethod = false;
@@ -89,6 +90,9 @@ class _AddOrderScreenState extends ConsumerState<AddOrderScreen> {
     setState(() {
       _minFiatAmount = minAmount;
       _maxFiatAmount = maxAmount;
+      
+      // Use comprehensive validation to check all error conditions
+      _validationError = _validateAllAmounts();
     });
   }
 
@@ -153,6 +157,36 @@ class _AddOrderScreenState extends ConsumerState<AddOrderScreen> {
     return null;
   }
 
+  /// Comprehensive validation for all fiat amount inputs
+  /// Returns error message if validation fails, null if all validations pass
+  String? _validateAllAmounts() {
+    // Check for empty required fields - min amount is always required
+    if (_minFiatAmount == null) {
+      return S.of(context)!.pleaseEnterAmount;
+    }
+
+    // Check min/max relationship for range orders  
+    if (_minFiatAmount != null && _maxFiatAmount != null) {
+      if (_maxFiatAmount! <= _minFiatAmount!) {
+        return S.of(context)!.maxMustBeGreaterThanMin;
+      }
+    }
+
+    // Check sats range validation for min amount
+    if (_minFiatAmount != null) {
+      final minError = _validateSatsRange(_minFiatAmount!.toDouble());
+      if (minError != null) return minError;
+    }
+
+    // Check sats range validation for max amount  
+    if (_maxFiatAmount != null) {
+      final maxError = _validateSatsRange(_maxFiatAmount!.toDouble());
+      if (maxError != null) return maxError;
+    }
+
+    return null; // All validations passed
+  }
+
   @override
   Widget build(BuildContext context) {
     return Scaffold(
@@ -195,7 +229,10 @@ class _AddOrderScreenState extends ConsumerState<AddOrderScreen> {
                         CurrencySection(
                           orderType: _orderType,
                           onCurrencySelected: () {
-                            setState(() {});
+                            setState(() {
+                              // Clear validation error when currency changes since rates may be different
+                              _validationError = null;
+                            });
                           },
                         ),
                         const SizedBox(height: 16),
@@ -203,6 +240,7 @@ class _AddOrderScreenState extends ConsumerState<AddOrderScreen> {
                           orderType: _orderType,
                           onAmountChanged: _onAmountChanged,
                           validateSatsRange: _validateSatsRange,
+                          validationError: _validationError,
                         ),
                         const SizedBox(height: 16),
                         PaymentMethodsSection(
@@ -339,34 +377,10 @@ class _AddOrderScreenState extends ConsumerState<AddOrderScreen> {
 
       // Enhanced validation: check sats range for both min and max amounts
       // This is a critical final validation before submission
-      if (_minFiatAmount != null) {
-        final minRangeError = _validateSatsRange(_minFiatAmount!.toDouble());
-        if (minRangeError != null) {
-          debugPrint('Submission blocked: Min amount validation failed: $minRangeError');
-          ScaffoldMessenger.of(context).showSnackBar(
-            SnackBar(
-              content: Text(minRangeError),
-              duration: const Duration(seconds: 4),
-              backgroundColor: Colors.red.withValues(alpha: 0.8),
-            ),
-          );
-          return;
-        }
-      }
-
-      if (_maxFiatAmount != null) {
-        final maxRangeError = _validateSatsRange(_maxFiatAmount!.toDouble());
-        if (maxRangeError != null) {
-          debugPrint('Submission blocked: Max amount validation failed: $maxRangeError');
-          ScaffoldMessenger.of(context).showSnackBar(
-            SnackBar(
-              content: Text(maxRangeError),
-              duration: const Duration(seconds: 4),
-              backgroundColor: Colors.red.withValues(alpha: 0.8),
-            ),
-          );
-          return;
-        }
+      if (_validationError != null) {
+        debugPrint('Submission blocked: Validation error present: $_validationError');
+        // Validation error is already displayed inline, just prevent submission
+        return;
       }
 
       // Additional safety check: ensure we have valid data for submission
diff --git a/lib/features/order/widgets/amount_section.dart b/lib/features/order/widgets/amount_section.dart
index e9e6537f..8fc810dd 100644
--- a/lib/features/order/widgets/amount_section.dart
+++ b/lib/features/order/widgets/amount_section.dart
@@ -1,5 +1,6 @@
 import 'package:flutter/material.dart';
 import 'package:flutter/services.dart';
+import 'package:mostro_mobile/core/app_theme.dart';
 import 'package:mostro_mobile/data/models/enums/order_type.dart';
 import 'package:mostro_mobile/features/order/widgets/form_section.dart';
 import 'package:mostro_mobile/generated/l10n.dart';
@@ -8,12 +9,14 @@ class AmountSection extends StatefulWidget {
   final OrderType orderType;
   final Function(int? minAmount, int? maxAmount) onAmountChanged;
   final String? Function(double)? validateSatsRange;
+  final String? validationError;
 
   const AmountSection({
     super.key,
     required this.orderType,
     required this.onAmountChanged,
     this.validateSatsRange,
+    this.validationError,
   });
 
   @override
@@ -121,53 +124,55 @@ class _AmountSectionState extends State<AmountSection> {
   }
 
   String? _validateMinAmount(String? value) {
-    if (value == null || value.isEmpty) {
-      return S.of(context)!.pleaseEnterAmount;
+    // Only validate format - all error messages handled by validationError widget
+    if (value != null && value.isNotEmpty && int.tryParse(value) == null) {
+      return ''; // Return empty string to trigger form validation but not show message
     }
-    if (int.tryParse(value) == null) {
-      return S.of(context)!.pleaseEnterValidAmount;
-    }
-
-    // Check sats range validation if callback provided
-    if (widget.validateSatsRange != null) {
-      final fiatAmount = double.tryParse(value);
-      if (fiatAmount != null) {
-        final rangeError = widget.validateSatsRange!(fiatAmount);
-        if (rangeError != null) {
-          return rangeError;
-        }
-      }
-    }
-    
     return null;
   }
 
   String? _validateMaxAmount(String? value) {
-    if (value == null || value.isEmpty) {
-      return null; // Max amount is optional
-    }
-    if (int.tryParse(value) == null) {
-      return S.of(context)!.pleaseEnterValidAmount;
-    }
-
-    final minAmount = int.tryParse(_minAmountController.text);
-    final maxAmount = int.tryParse(value);
-    if (minAmount != null && maxAmount != null && maxAmount <= minAmount) {
-      return S.of(context)!.maxMustBeGreaterThanMin;
+    // Only validate format - all error messages handled by validationError widget
+    if (value != null && value.isNotEmpty && int.tryParse(value) == null) {
+      return ''; // Return empty string to trigger form validation but not show message
     }
+    return null;
+  }
 
-    // Check sats range validation if callback provided
-    if (widget.validateSatsRange != null) {
-      final fiatAmount = double.tryParse(value);
-      if (fiatAmount != null) {
-        final rangeError = widget.validateSatsRange!(fiatAmount);
-        if (rangeError != null) {
-          return rangeError;
-        }
-      }
-    }
+  Widget _buildValidationMessage() {
+    if (widget.validationError == null) return const SizedBox.shrink();
 
-    return null;
+    return Container(
+      padding: const EdgeInsets.all(12),
+      decoration: BoxDecoration(
+        color: AppTheme.statusError.withValues(alpha: 0.1),
+        borderRadius: BorderRadius.circular(8),
+        border: Border.all(
+          color: AppTheme.statusError.withValues(alpha: 0.3),
+          width: 1,
+        ),
+      ),
+      child: Row(
+        children: [
+          Icon(
+            Icons.warning_amber_rounded,
+            color: AppTheme.statusError,
+            size: 18,
+          ),
+          const SizedBox(width: 8),
+          Expanded(
+            child: Text(
+              widget.validationError!,
+              style: const TextStyle(
+                color: AppTheme.statusError,
+                fontSize: 13,
+                fontWeight: FontWeight.w500,
+              ),
+            ),
+          ),
+        ],
+      ),
+    );
   }
 
   @override
@@ -243,6 +248,12 @@ class _AmountSectionState extends State<AmountSection> {
               ),
             ),
           ],
+
+          // Validation message (shown inside card when there's an error)
+          if (widget.validationError != null) ...[
+            const SizedBox(height: 12),
+            _buildValidationMessage(),
+          ],
         ],
       ),
     );

From 79f5f138ac5abdfca5faceaebf89ccfbe330d47d Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Francisco=20Calder=C3=B3n?= <fjcalderon@gmail.com>
Date: Wed, 20 Aug 2025 11:16:45 -0300
Subject: [PATCH 03/10] Fix order creation form validation
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Now when validation errors exist (like sats amount out of range), the submit button:
  - ✅ Appears disabled (grey background, inactive text color)
  - ✅ Does NOT show loading state when tapped
  - ✅ Remains truly disabled until validation passes
  - ✅ Follows the exact same behavior as payment method validation
---
 .../order/screens/add_order_screen.dart       | 27 ++++++++++++++++++-
 .../order/widgets/action_buttons.dart         |  8 +++---
 .../widgets/mostro_reactive_button.dart       | 12 +++++----
 3 files changed, 37 insertions(+), 10 deletions(-)

diff --git a/lib/features/order/screens/add_order_screen.dart b/lib/features/order/screens/add_order_screen.dart
index 99564ec3..8bc8c13a 100644
--- a/lib/features/order/screens/add_order_screen.dart
+++ b/lib/features/order/screens/add_order_screen.dart
@@ -332,7 +332,7 @@ class _AddOrderScreenState extends ConsumerState<AddOrderScreen> {
                           child: ActionButtons(
                             key: const Key('addOrderButtons'),
                             onCancel: () => context.pop(),
-                            onSubmit: _submitOrder,
+                            onSubmit: _getSubmitCallback(),
                             currentRequestId: _currentRequestId,
                           ),
                         ),
@@ -348,6 +348,31 @@ class _AddOrderScreenState extends ConsumerState<AddOrderScreen> {
     );
   }
 
+  /// Returns submit callback only when form is valid, null otherwise
+  /// This prevents button loading state when validation errors exist
+  VoidCallback? _getSubmitCallback() {
+    // Don't allow submission if validation errors exist
+    if (_validationError != null) {
+      return null; // Disables button, prevents loading state
+    }
+    
+    // Check other basic conditions that would prevent submission
+    final selectedFiatCode = ref.read(selectedFiatCodeProvider);
+    if (selectedFiatCode == null || selectedFiatCode.isEmpty) {
+      return null;
+    }
+    
+    if (_selectedPaymentMethods.isEmpty) {
+      return null;
+    }
+    
+    if (_validationError != null) {
+      return null;
+    }
+    
+    return _submitOrder; // Form is valid - allow submission
+  }
+
   void _submitOrder() {
     if (_formKey.currentState?.validate() ?? false) {
       final selectedFiatCode = ref.read(selectedFiatCodeProvider);
diff --git a/lib/features/order/widgets/action_buttons.dart b/lib/features/order/widgets/action_buttons.dart
index 27302a26..65d7abdf 100644
--- a/lib/features/order/widgets/action_buttons.dart
+++ b/lib/features/order/widgets/action_buttons.dart
@@ -6,7 +6,7 @@ import 'package:mostro_mobile/generated/l10n.dart';
 
 class ActionButtons extends StatelessWidget {
   final VoidCallback onCancel;
-  final VoidCallback onSubmit;
+  final VoidCallback? onSubmit;
   final int? currentRequestId;
 
   const ActionButtons({
@@ -50,9 +50,9 @@ class ActionButtons extends StatelessWidget {
               action: nostr_action.Action.newOrder,
               onPressed: onSubmit,
               timeout: const Duration(seconds: 5),
-              showSuccessIndicator: true,
-              backgroundColor: AppTheme.purpleButton,
-              foregroundColor: Colors.white,
+              showSuccessIndicator: onSubmit != null, // Only show success indicator when enabled
+              backgroundColor: onSubmit != null ? AppTheme.purpleButton : AppTheme.backgroundInactive,
+              foregroundColor: onSubmit != null ? Colors.white : AppTheme.textInactive,
             ),
           ),
         ),
diff --git a/lib/shared/widgets/mostro_reactive_button.dart b/lib/shared/widgets/mostro_reactive_button.dart
index 6097fde3..01bc518e 100644
--- a/lib/shared/widgets/mostro_reactive_button.dart
+++ b/lib/shared/widgets/mostro_reactive_button.dart
@@ -29,7 +29,7 @@ class MostroReactiveButtonController {
 class MostroReactiveButton extends ConsumerStatefulWidget {
   final String label;
   final ButtonStyleType buttonStyle;
-  final VoidCallback onPressed;
+  final VoidCallback? onPressed;
   final String orderId;
   final actions.Action action;
   final Duration timeout;
@@ -87,11 +87,13 @@ class _MostroReactiveButtonState extends ConsumerState<MostroReactiveButton> {
   }
 
   void _startOperation() {
+    if (widget.onPressed == null) return;
+    
     setState(() {
       _loading = true;
       _showSuccess = false;
     });
-    widget.onPressed();
+    widget.onPressed!();
     _timeoutTimer?.cancel();
     _timeoutTimer = Timer(widget.timeout, _handleTimeout);
   }
@@ -155,7 +157,7 @@ class _MostroReactiveButtonState extends ConsumerState<MostroReactiveButton> {
     switch (widget.buttonStyle) {
       case ButtonStyleType.raised:
         button = ElevatedButton(
-          onPressed: _loading ? null : _startOperation,
+          onPressed: (_loading || widget.onPressed == null) ? null : _startOperation,
           style: (widget.backgroundColor != null || widget.foregroundColor != null)
               ? AppTheme.theme.elevatedButtonTheme.style?.copyWith(
                   backgroundColor: widget.backgroundColor != null
@@ -171,7 +173,7 @@ class _MostroReactiveButtonState extends ConsumerState<MostroReactiveButton> {
         break;
       case ButtonStyleType.outlined:
         button = OutlinedButton(
-          onPressed: _loading ? null : _startOperation,
+          onPressed: (_loading || widget.onPressed == null) ? null : _startOperation,
           style: widget.backgroundColor != null
               ? AppTheme.theme.outlinedButtonTheme.style?.copyWith(
                   backgroundColor: WidgetStateProperty.resolveWith(
@@ -184,7 +186,7 @@ class _MostroReactiveButtonState extends ConsumerState<MostroReactiveButton> {
         break;
       case ButtonStyleType.text:
         button = TextButton(
-          onPressed: _loading ? null : _startOperation,
+          onPressed: (_loading || widget.onPressed == null) ? null : _startOperation,
           style: widget.backgroundColor != null
               ? AppTheme.theme.textButtonTheme.style?.copyWith(
                   backgroundColor: WidgetStateProperty.resolveWith(

From 41b6abd1cdd5b507ff205f7384f5ac69a1227a52 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Francisco=20Calder=C3=B3n?= <fjcalderon@gmail.com>
Date: Wed, 20 Aug 2025 11:18:43 -0300
Subject: [PATCH 04/10] Use the modern AGP DSL

 switch to minSdk = ... (not minSdkVersion)
---
 android/app/build.gradle | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/android/app/build.gradle b/android/app/build.gradle
index 87f45ddf..094b606b 100644
--- a/android/app/build.gradle
+++ b/android/app/build.gradle
@@ -26,7 +26,7 @@ android {
         applicationId = "network.mostro.app"
         // You can update the following values to match your application needs.
         // For more information, see: https://flutter.dev/to/review-gradle-config.
-        minSdkVersion flutter.minSdkVersion // flutter.minSdkVersion
+        minSdk = flutter.minSdkVersion // flutter.minSdkVersion
         targetSdk = flutter.targetSdkVersion
         versionCode = flutter.versionCode
         versionName = flutter.versionName

From 2a292cf8f2ad07db43d38f49292b05518293fb0f Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Francisco=20Calder=C3=B3n?= <fjcalderon@gmail.com>
Date: Wed, 20 Aug 2025 15:38:02 -0300
Subject: [PATCH 05/10] Fix rabbit suggestions

---
 android/app/build.gradle                      |  4 +-
 .../order/screens/add_order_screen.dart       | 41 +++++++++---------
 .../order/widgets/action_buttons.dart         | 12 ++++--
 .../widgets/mostro_reactive_button.dart       | 42 +++++++++++--------
 4 files changed, 56 insertions(+), 43 deletions(-)

diff --git a/android/app/build.gradle b/android/app/build.gradle
index 094b606b..cd8a496a 100644
--- a/android/app/build.gradle
+++ b/android/app/build.gradle
@@ -7,8 +7,8 @@ plugins {
 
 android {
     namespace = "network.mostro.app"
-    compileSdk = 35 // flutter.compileSdkVersion
-    ndkVersion = "26.3.11579264" //flutter.ndkVersion
+    compileSdk = flutter.compileSdkVersion
+    ndkVersion = flutter.ndkVersion
 
     compileOptions {
         coreLibraryDesugaringEnabled true
diff --git a/lib/features/order/screens/add_order_screen.dart b/lib/features/order/screens/add_order_screen.dart
index 8bc8c13a..1ec5ef61 100644
--- a/lib/features/order/screens/add_order_screen.dart
+++ b/lib/features/order/screens/add_order_screen.dart
@@ -90,7 +90,7 @@ class _AddOrderScreenState extends ConsumerState<AddOrderScreen> {
     setState(() {
       _minFiatAmount = minAmount;
       _maxFiatAmount = maxAmount;
-      
+
       // Use comprehensive validation to check all error conditions
       _validationError = _validateAllAmounts();
     });
@@ -138,19 +138,20 @@ class _AddOrderScreenState extends ConsumerState<AddOrderScreen> {
     final maxAllowed = mostroInstance.maxOrderAmount;
 
     // Debug logging
-    debugPrint('Validation: fiat=$fiatAmount, rate=$exchangeRate, sats=$satsAmount, min=$minAllowed, max=$maxAllowed');
+    debugPrint(
+        'Validation: fiat=$fiatAmount, rate=$exchangeRate, sats=$satsAmount, min=$minAllowed, max=$maxAllowed');
 
     // Check if sats amount is outside range
     if (satsAmount < minAllowed) {
       return S.of(context)!.fiatAmountTooLow(
-        minAllowed.toString(),
-        maxAllowed.toString(),
-      );
+            minAllowed.toString(),
+            maxAllowed.toString(),
+          );
     } else if (satsAmount > maxAllowed) {
       return S.of(context)!.fiatAmountTooHigh(
-        minAllowed.toString(),
-        maxAllowed.toString(),
-      );
+            minAllowed.toString(),
+            maxAllowed.toString(),
+          );
     }
 
     // Validation passed
@@ -165,7 +166,7 @@ class _AddOrderScreenState extends ConsumerState<AddOrderScreen> {
       return S.of(context)!.pleaseEnterAmount;
     }
 
-    // Check min/max relationship for range orders  
+    // Check min/max relationship for range orders
     if (_minFiatAmount != null && _maxFiatAmount != null) {
       if (_maxFiatAmount! <= _minFiatAmount!) {
         return S.of(context)!.maxMustBeGreaterThanMin;
@@ -178,7 +179,7 @@ class _AddOrderScreenState extends ConsumerState<AddOrderScreen> {
       if (minError != null) return minError;
     }
 
-    // Check sats range validation for max amount  
+    // Check sats range validation for max amount
     if (_maxFiatAmount != null) {
       final maxError = _validateSatsRange(_maxFiatAmount!.toDouble());
       if (maxError != null) return maxError;
@@ -230,8 +231,8 @@ class _AddOrderScreenState extends ConsumerState<AddOrderScreen> {
                           orderType: _orderType,
                           onCurrencySelected: () {
                             setState(() {
-                              // Clear validation error when currency changes since rates may be different
-                              _validationError = null;
+                              // Re-validate after currency change since rates/limits differ
+                              _validationError = _validateAllAmounts();
                             });
                           },
                         ),
@@ -355,21 +356,21 @@ class _AddOrderScreenState extends ConsumerState<AddOrderScreen> {
     if (_validationError != null) {
       return null; // Disables button, prevents loading state
     }
-    
+
     // Check other basic conditions that would prevent submission
     final selectedFiatCode = ref.read(selectedFiatCodeProvider);
     if (selectedFiatCode == null || selectedFiatCode.isEmpty) {
       return null;
     }
-    
+
     if (_selectedPaymentMethods.isEmpty) {
       return null;
     }
-    
+
     if (_validationError != null) {
       return null;
     }
-    
+
     return _submitOrder; // Form is valid - allow submission
   }
 
@@ -403,7 +404,8 @@ class _AddOrderScreenState extends ConsumerState<AddOrderScreen> {
       // Enhanced validation: check sats range for both min and max amounts
       // This is a critical final validation before submission
       if (_validationError != null) {
-        debugPrint('Submission blocked: Validation error present: $_validationError');
+        debugPrint(
+            'Submission blocked: Validation error present: $_validationError');
         // Validation error is already displayed inline, just prevent submission
         return;
       }
@@ -411,9 +413,10 @@ class _AddOrderScreenState extends ConsumerState<AddOrderScreen> {
       // Additional safety check: ensure we have valid data for submission
       final exchangeRateAsync = ref.read(exchangeRateProvider(fiatCode));
       final mostroInstance = ref.read(orderRepositoryProvider).mostroInstance;
-      
+
       if (!exchangeRateAsync.hasValue || mostroInstance == null) {
-        debugPrint('Submission blocked: Required data not available - Exchange rate: ${exchangeRateAsync.hasValue}, Mostro instance: ${mostroInstance != null}');
+        debugPrint(
+            'Submission blocked: Required data not available - Exchange rate: ${exchangeRateAsync.hasValue}, Mostro instance: ${mostroInstance != null}');
         ScaffoldMessenger.of(context).showSnackBar(
           SnackBar(
             content: Text(S.of(context)!.exchangeRateNotAvailable),
diff --git a/lib/features/order/widgets/action_buttons.dart b/lib/features/order/widgets/action_buttons.dart
index 65d7abdf..163998d3 100644
--- a/lib/features/order/widgets/action_buttons.dart
+++ b/lib/features/order/widgets/action_buttons.dart
@@ -12,7 +12,7 @@ class ActionButtons extends StatelessWidget {
   const ActionButtons({
     super.key,
     required this.onCancel,
-    required this.onSubmit,
+    this.onSubmit,
     required this.currentRequestId,
   });
 
@@ -50,9 +50,13 @@ class ActionButtons extends StatelessWidget {
               action: nostr_action.Action.newOrder,
               onPressed: onSubmit,
               timeout: const Duration(seconds: 5),
-              showSuccessIndicator: onSubmit != null, // Only show success indicator when enabled
-              backgroundColor: onSubmit != null ? AppTheme.purpleButton : AppTheme.backgroundInactive,
-              foregroundColor: onSubmit != null ? Colors.white : AppTheme.textInactive,
+              showSuccessIndicator:
+                  onSubmit != null, // Only show success indicator when enabled
+              backgroundColor: onSubmit != null
+                  ? AppTheme.purpleButton
+                  : AppTheme.backgroundInactive,
+              foregroundColor:
+                  onSubmit != null ? Colors.white : AppTheme.textInactive,
             ),
           ),
         ),
diff --git a/lib/shared/widgets/mostro_reactive_button.dart b/lib/shared/widgets/mostro_reactive_button.dart
index 01bc518e..80c31065 100644
--- a/lib/shared/widgets/mostro_reactive_button.dart
+++ b/lib/shared/widgets/mostro_reactive_button.dart
@@ -12,15 +12,15 @@ enum ButtonStyleType { raised, outlined, text }
 /// Controller for managing MostroReactiveButton state externally
 class MostroReactiveButtonController {
   _MostroReactiveButtonState? _state;
-  
+
   void _attach(_MostroReactiveButtonState state) {
     _state = state;
   }
-  
+
   void _detach() {
     _state = null;
   }
-  
+
   void resetLoading() {
     _state?.resetLoading();
   }
@@ -44,7 +44,7 @@ class MostroReactiveButton extends ConsumerStatefulWidget {
     super.key,
     required this.label,
     required this.buttonStyle,
-    required this.onPressed,
+    this.onPressed,
     required this.orderId,
     required this.action,
     this.timeout = const Duration(seconds: 5),
@@ -88,7 +88,7 @@ class _MostroReactiveButtonState extends ConsumerState<MostroReactiveButton> {
 
   void _startOperation() {
     if (widget.onPressed == null) return;
-    
+
     setState(() {
       _loading = true;
       _showSuccess = false;
@@ -157,23 +157,28 @@ class _MostroReactiveButtonState extends ConsumerState<MostroReactiveButton> {
     switch (widget.buttonStyle) {
       case ButtonStyleType.raised:
         button = ElevatedButton(
-          onPressed: (_loading || widget.onPressed == null) ? null : _startOperation,
-          style: (widget.backgroundColor != null || widget.foregroundColor != null)
-              ? AppTheme.theme.elevatedButtonTheme.style?.copyWith(
-                  backgroundColor: widget.backgroundColor != null
-                      ? WidgetStateProperty.resolveWith((_) => widget.backgroundColor!)
-                      : null,
-                  foregroundColor: widget.foregroundColor != null
-                      ? WidgetStateProperty.resolveWith((_) => widget.foregroundColor!)
-                      : null,
-                )
-              : AppTheme.theme.elevatedButtonTheme.style,
+          onPressed:
+              (_loading || widget.onPressed == null) ? null : _startOperation,
+          style:
+              (widget.backgroundColor != null || widget.foregroundColor != null)
+                  ? AppTheme.theme.elevatedButtonTheme.style?.copyWith(
+                      backgroundColor: widget.backgroundColor != null
+                          ? WidgetStateProperty.resolveWith(
+                              (_) => widget.backgroundColor!)
+                          : null,
+                      foregroundColor: widget.foregroundColor != null
+                          ? WidgetStateProperty.resolveWith(
+                              (_) => widget.foregroundColor!)
+                          : null,
+                    )
+                  : AppTheme.theme.elevatedButtonTheme.style,
           child: childWidget,
         );
         break;
       case ButtonStyleType.outlined:
         button = OutlinedButton(
-          onPressed: (_loading || widget.onPressed == null) ? null : _startOperation,
+          onPressed:
+              (_loading || widget.onPressed == null) ? null : _startOperation,
           style: widget.backgroundColor != null
               ? AppTheme.theme.outlinedButtonTheme.style?.copyWith(
                   backgroundColor: WidgetStateProperty.resolveWith(
@@ -186,7 +191,8 @@ class _MostroReactiveButtonState extends ConsumerState<MostroReactiveButton> {
         break;
       case ButtonStyleType.text:
         button = TextButton(
-          onPressed: (_loading || widget.onPressed == null) ? null : _startOperation,
+          onPressed:
+              (_loading || widget.onPressed == null) ? null : _startOperation,
           style: widget.backgroundColor != null
               ? AppTheme.theme.textButtonTheme.style?.copyWith(
                   backgroundColor: WidgetStateProperty.resolveWith(

From a09d4ebab21ebff86b67eae7d36208dacd29518b Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Francisco=20Calder=C3=B3n?= <fjcalderon@gmail.com>
Date: Wed, 20 Aug 2025 15:51:59 -0300
Subject: [PATCH 06/10] Fixed Flutter analyzer warnings
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

1. Added validation check to _getSubmitCallback() - Now returns null when validation errors exist
2. Updated MostroReactiveButton - Properly handles null callbacks without triggering loading state

3. Cleaned up ActionButtons - Removed workaround no-op callback

Result: When sats validation errors are present, the submit button is truly disabled and does NOT
show loading state when tapped, exactly like when payment methods aren't selected.

🔧 Code Quality: All Analyzer Issues Fixed

1. ✅ Removed unnecessary this. qualifier
2. ✅ Simplified conditional assignment
3. ✅ Updated 4 deprecated activeColor to activeThumbColor in Switch widgets

Result: Clean codebase with zero analyzer issues (No issues found!)
---
 lib/data/models/mostro_message.dart                 | 2 +-
 lib/data/repositories/mostro_storage.dart           | 4 +---
 lib/features/auth/screens/register_screen.dart      | 2 +-
 lib/features/key_manager/key_management_screen.dart | 2 +-
 lib/features/order/widgets/price_type_section.dart  | 2 +-
 lib/shared/widgets/privacy_switch_widget.dart       | 2 +-
 6 files changed, 6 insertions(+), 8 deletions(-)

diff --git a/lib/data/models/mostro_message.dart b/lib/data/models/mostro_message.dart
index 93fa9d9d..673a5ee6 100644
--- a/lib/data/models/mostro_message.dart
+++ b/lib/data/models/mostro_message.dart
@@ -175,7 +175,7 @@ class MostroMessage<T extends Payload> {
     NostrKeyPairs? masterKey,
     int? keyIndex,
   }) async {
-    this.tradeIndex = keyIndex;
+    tradeIndex = keyIndex;
     final content = serialize(keyPair: masterKey != null ? tradeKey : null);
     final keySet = masterKey ?? tradeKey;
 
diff --git a/lib/data/repositories/mostro_storage.dart b/lib/data/repositories/mostro_storage.dart
index 1cbfd432..12b2b46a 100644
--- a/lib/data/repositories/mostro_storage.dart
+++ b/lib/data/repositories/mostro_storage.dart
@@ -17,9 +17,7 @@ class MostroStorage extends BaseStorage<MostroMessage> {
       if (await hasItem(id)) return;
       // Add metadata for easier querying
       final Map<String, dynamic> dbMap = message.toJson();
-      if (message.timestamp == null) {
-        message.timestamp = DateTime.now().millisecondsSinceEpoch;
-      }
+      message.timestamp ??= DateTime.now().millisecondsSinceEpoch;
       dbMap['timestamp'] = message.timestamp;
 
       await store.record(id).put(db, dbMap);
diff --git a/lib/features/auth/screens/register_screen.dart b/lib/features/auth/screens/register_screen.dart
index 219cccc6..604b5580 100644
--- a/lib/features/auth/screens/register_screen.dart
+++ b/lib/features/auth/screens/register_screen.dart
@@ -182,7 +182,7 @@ class RegisterScreen extends HookConsumerWidget {
                           ref.read(useBiometricsProvider.notifier).state =
                               value;
                         },
-                        activeColor: Colors.green,
+                        activeThumbColor: Colors.green,
                       )
                     : const SizedBox.shrink();
               }),
diff --git a/lib/features/key_manager/key_management_screen.dart b/lib/features/key_manager/key_management_screen.dart
index 09495de1..ef716061 100644
--- a/lib/features/key_manager/key_management_screen.dart
+++ b/lib/features/key_manager/key_management_screen.dart
@@ -396,7 +396,7 @@ class _KeyManagementScreenState extends ConsumerState<KeyManagementScreen> {
                           .watch(settingsProvider.notifier)
                           .updatePrivacyMode(value);
                     },
-                    activeColor: AppTheme.activeColor,
+                    activeThumbColor: AppTheme.activeColor,
                     inactiveThumbColor: AppTheme.textSecondary,
                     inactiveTrackColor: AppTheme.backgroundInactive,
                   ),
diff --git a/lib/features/order/widgets/price_type_section.dart b/lib/features/order/widgets/price_type_section.dart
index 371dc8e9..4dcdf00f 100644
--- a/lib/features/order/widgets/price_type_section.dart
+++ b/lib/features/order/widgets/price_type_section.dart
@@ -53,7 +53,7 @@ class PriceTypeSection extends StatelessWidget {
               Switch(
                 key: const Key('fixedSwitch'),
                 value: isMarketRate,
-                activeColor:
+                activeThumbColor:
                     AppTheme.purpleAccent, // Keep the purple accent color
                 onChanged: onToggle,
               ),
diff --git a/lib/shared/widgets/privacy_switch_widget.dart b/lib/shared/widgets/privacy_switch_widget.dart
index f1541ab2..2e01af27 100644
--- a/lib/shared/widgets/privacy_switch_widget.dart
+++ b/lib/shared/widgets/privacy_switch_widget.dart
@@ -45,7 +45,7 @@ class _PrivacySwitchState extends State<PrivacySwitch> {
             });
             widget.onChanged(value);
           },
-          activeColor: AppTheme.mostroGreen,
+          activeThumbColor: AppTheme.mostroGreen,
           inactiveThumbColor: Colors.grey,
         ),
         const SizedBox(width: 8),

From 72fcce3bf00c23aab6089ff3559228dbadb71a7b Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Francisco=20Calder=C3=B3n?= <fjcalderon@gmail.com>
Date: Wed, 20 Aug 2025 15:54:18 -0300
Subject: [PATCH 07/10] Fixed: Removed deprecated synthetic-package: false

from l10n.yaml configuration file. This eliminates the deprecation warning
while maintaining all existing localization functionality.
---
 l10n.yaml | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/l10n.yaml b/l10n.yaml
index baa8e2be..3f5f9f96 100644
--- a/l10n.yaml
+++ b/l10n.yaml
@@ -2,5 +2,4 @@ arb-dir: lib/l10n
 template-arb-file: intl_en.arb
 output-dir: lib/generated
 output-localization-file: l10n.dart
-output-class: S
-synthetic-package: false
\ No newline at end of file
+output-class: S
\ No newline at end of file

From 51f070bdcca5e3a5cef6768842d6968c5e1d45fc Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Francisco=20Calder=C3=B3n?= <fjcalderon@gmail.com>
Date: Wed, 20 Aug 2025 16:08:56 -0300
Subject: [PATCH 08/10] remove unused file
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

  - ✅ File deleted: /home/gruncho/dev/mobile/lib/shared/widgets/privacy_switch_widget.dart
  - ✅ No breaking changes: Flutter analyze shows "No issues found!"
  - ✅ Clean codebase: Removed dead code that was not being used anywhere
---
 lib/shared/widgets/privacy_switch_widget.dart | 60 -------------------
 1 file changed, 60 deletions(-)
 delete mode 100644 lib/shared/widgets/privacy_switch_widget.dart

diff --git a/lib/shared/widgets/privacy_switch_widget.dart b/lib/shared/widgets/privacy_switch_widget.dart
deleted file mode 100644
index 2e01af27..00000000
--- a/lib/shared/widgets/privacy_switch_widget.dart
+++ /dev/null
@@ -1,60 +0,0 @@
-import 'package:flutter/material.dart';
-import 'package:heroicons/heroicons.dart';
-import 'package:mostro_mobile/core/app_theme.dart';
-
-class PrivacySwitch extends StatefulWidget {
-  final bool initialValue;
-  final ValueChanged<bool> onChanged;
-
-  const PrivacySwitch({
-    super.key,
-    this.initialValue = false,
-    required this.onChanged,
-  });
-
-  @override
-  State<PrivacySwitch> createState() => _PrivacySwitchState();
-}
-
-class _PrivacySwitchState extends State<PrivacySwitch> {
-  late bool _isFullPrivacy;
-
-  @override
-  void initState() {
-    super.initState();
-    _isFullPrivacy = widget.initialValue;
-  }
-
-  @override
-  Widget build(BuildContext context) {
-    return Row(
-      children: [
-        HeroIcon(
-          _isFullPrivacy ? HeroIcons.eyeSlash : HeroIcons.eye,
-          style: HeroIconStyle.outline,
-          color: AppTheme.cream1,
-          size: 24,
-        ),
-        const SizedBox(width: 8),
-        // The Switch control.
-        Switch(
-          value: _isFullPrivacy,
-          onChanged: (value) {
-            setState(() {
-              _isFullPrivacy = value;
-            });
-            widget.onChanged(value);
-          },
-          activeThumbColor: AppTheme.mostroGreen,
-          inactiveThumbColor: Colors.grey,
-        ),
-        const SizedBox(width: 8),
-        // A text label that changes based on the switch value.
-        Text(
-          _isFullPrivacy ? 'Full Privacy' : 'Normal Privacy',
-          style: const TextStyle(color: AppTheme.cream1),
-        ),
-      ],
-    );
-  }
-}

From 2dd429fb06bdea927f0bb9fd2065a3d48ba8a1c5 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Francisco=20Calder=C3=B3n?= <fjcalderon@gmail.com>
Date: Wed, 20 Aug 2025 16:09:14 -0300
Subject: [PATCH 09/10] Address rabbit nitpick comments

---
 lib/features/auth/screens/register_screen.dart      | 2 +-
 lib/features/key_manager/key_management_screen.dart | 7 ++++---
 2 files changed, 5 insertions(+), 4 deletions(-)

diff --git a/lib/features/auth/screens/register_screen.dart b/lib/features/auth/screens/register_screen.dart
index 604b5580..0dbe794d 100644
--- a/lib/features/auth/screens/register_screen.dart
+++ b/lib/features/auth/screens/register_screen.dart
@@ -182,7 +182,7 @@ class RegisterScreen extends HookConsumerWidget {
                           ref.read(useBiometricsProvider.notifier).state =
                               value;
                         },
-                        activeThumbColor: Colors.green,
+                        activeThumbColor: AppTheme.activeColor,
                       )
                     : const SizedBox.shrink();
               }),
diff --git a/lib/features/key_manager/key_management_screen.dart b/lib/features/key_manager/key_management_screen.dart
index ef716061..e863c8a3 100644
--- a/lib/features/key_manager/key_management_screen.dart
+++ b/lib/features/key_manager/key_management_screen.dart
@@ -57,8 +57,8 @@ class _KeyManagementScreenState extends ConsumerState<KeyManagementScreen> {
   }
 
   Future<void> _generateNewMasterKey() async {
-    final sessionNotifer = ref.read(sessionNotifierProvider.notifier);
-    await sessionNotifer.reset();
+    final sessionNotifier = ref.read(sessionNotifierProvider.notifier);
+    await sessionNotifier.reset();
 
     final mostroStorage = ref.read(mostroStorageProvider);
     await mostroStorage.deleteAll();
@@ -672,7 +672,8 @@ class _KeyManagementScreenState extends ConsumerState<KeyManagementScreen> {
                 shape: RoundedRectangleBorder(
                   borderRadius: BorderRadius.circular(8),
                 ),
-                padding: const EdgeInsets.symmetric(horizontal: 12, vertical: 12),
+                padding:
+                    const EdgeInsets.symmetric(horizontal: 12, vertical: 12),
               ),
               child: Text(
                 S.of(context)!.continueButton,

From dfcdc9fcfefc1fe0aef1a6c97cbccadd47931b66 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Francisco=20Calder=C3=B3n?= <fjcalderon@gmail.com>
Date: Wed, 20 Aug 2025 16:14:12 -0300
Subject: [PATCH 10/10] Min amount is validated when is not null

---
 lib/features/order/screens/add_order_screen.dart | 5 -----
 1 file changed, 5 deletions(-)

diff --git a/lib/features/order/screens/add_order_screen.dart b/lib/features/order/screens/add_order_screen.dart
index 1ec5ef61..43d69b7b 100644
--- a/lib/features/order/screens/add_order_screen.dart
+++ b/lib/features/order/screens/add_order_screen.dart
@@ -161,11 +161,6 @@ class _AddOrderScreenState extends ConsumerState<AddOrderScreen> {
   /// Comprehensive validation for all fiat amount inputs
   /// Returns error message if validation fails, null if all validations pass
   String? _validateAllAmounts() {
-    // Check for empty required fields - min amount is always required
-    if (_minFiatAmount == null) {
-      return S.of(context)!.pleaseEnterAmount;
-    }
-
     // Check min/max relationship for range orders
     if (_minFiatAmount != null && _maxFiatAmount != null) {
       if (_maxFiatAmount! <= _minFiatAmount!) {