Feature/form validation

README.md

@@ -1,16 +1,15 @@
-# sol_pay_gen
+# Solana Pay QR generator
 
 QR code generator for Solana Pay
 
-## Getting Started
+## Checklist
 
-This project is a starting point for a Flutter application.
+- ✅ Validation
 
-A few resources to get you started if this is your first Flutter project:
-
-- [Lab: Write your first Flutter app](https://docs.flutter.dev/get-started/codelab)
-- [Cookbook: Useful Flutter samples](https://docs.flutter.dev/cookbook)
-
-For help getting started with Flutter development, view the
-[online documentation](https://docs.flutter.dev/), which offers tutorials,
-samples, guidance on mobile development, and a full API reference.
+- 🚧 Download QR code
+- 🚧 SPL token picker
+- 🚧 Upload custom icon
+- 🚧 Adaptive layout
+- 🚧 How it works page
+- 🚧 Transaction request
+- 🚧 Transactions history

lib/data/base/text_value.dart

@@ -0,0 +1,22 @@
+import '../error/input_error.dart';
+
+class TextValue {
+  TextValue({
+    this.text = "",
+    this.error,
+  });
+
+  final String text;
+  final InputError? error;
+
+  TextValue copyWith({
+    String? text,
+    InputError? error,
+  }) =>
+      TextValue(
+        text: text ?? this.text,
+        error: error ?? this.error,
+      );
+
+  bool isValid() => error == null;
+}

lib/data/error/input_error.dart

@@ -0,0 +1,28 @@
+abstract class InputError {
+  abstract String text;
+}
+
+class NotANumber extends InputError {
+  @override
+  String text = "Field must be a number";
+}
+
+class EmptyAmount extends InputError {
+  @override
+  String text = "Amount must be more than 0 if present";
+}
+
+class RequiredAmount extends InputError {
+  @override
+  String text = "Field is required";
+}
+
+class KeyNotBase58Encoded extends InputError {
+  @override
+  String text = "Invalid value, must be base58 encoded";
+}
+
+class KeyLengthInvalid extends InputError {
+  @override
+  String text = "Key value must be between 32 and 44 characters";
+}

lib/data/solana_pay_request.dart

@@ -9,11 +9,11 @@ class SolanaPayRequest {
     this.splToken,
   });
 
-  String address;
-  String? label;
-  String? splToken;
-  String? message;
-  String? amount;
-  String? reference;
-  String? memo;
+  final String address;
+  final String? label;
+  final String? splToken;
+  final String? message;
+  final String? amount;
+  final String? reference;
+  final String? memo;
 }

lib/design/input/base_input.dart

@@ -5,25 +5,28 @@ class BaseInput extends StatelessWidget {
   final ValueChanged<String>? _onChanged;
   final TextInputType? _keyboardType;
   final bool _focusable;
+  final String? _error;
 
   const BaseInput({
     super.key,
     required labelText,
     required onChanged,
     keyboardType,
     focusable,
+    error,
   })  : _labelText = labelText,
         _onChanged = onChanged,
         _keyboardType = keyboardType,
-        _focusable = focusable ?? true;
+        _focusable = focusable ?? true,
+        _error = error;
 
   @override
   Widget build(BuildContext context) {
     return TextField(
       decoration: InputDecoration(
-        border: const OutlineInputBorder(),
-        labelText: _labelText,
-      ),
+          border: const OutlineInputBorder(),
+          labelText: _labelText,
+          errorText: _error),
       onChanged: _onChanged,
       keyboardType: _keyboardType,
       focusNode: _focusable ? null : AlwaysDisabledFocusNode(),

lib/di/blocs_providers.dart

@@ -2,24 +2,27 @@ import 'package:flutter/material.dart';
 import 'package:flutter_bloc/flutter_bloc.dart';
 import 'package:sol_pay_gen/domain/generate_transfer_request_qr_use_case.dart';
 import 'package:sol_pay_gen/feature/qr/bloc/qr_generator_cubit.dart';
+import 'package:sol_pay_gen/validator/keys_validator.dart';
+import 'package:sol_pay_gen/validator/number_validator.dart';
 
 import '../data/transfer/transfer_request_repository.dart';
 import '../feature/input/bloc/parameters_input_cubit.dart';
 
 MultiBlocProvider getBlocProviders({required StatelessWidget child}) {
-  ParametersInputCubit parametersInputCubit = ParametersInputCubit();
-
   return MultiBlocProvider(
     providers: [
       BlocProvider<ParametersInputCubit>(
-        create: (_) => parametersInputCubit,
+        create: (BuildContext context) => ParametersInputCubit(
+          context.read<NumberValidator>(),
+          context.read<KeysValidator>(),
+        ),
       ),
       BlocProvider<QrGeneratorCubit>(
         create: (BuildContext context) => QrGeneratorCubit(
           generateTransferRequestQrUseCase: GenerateTransferRequestQrUseCase(
             context.read<TransferRequestRepository>(),
           ),
-          parametersInputCubit: parametersInputCubit,
+          parametersInputCubit: context.read<ParametersInputCubit>(),
         ),
       )
     ],