Merge pull request #4 from Dartmind-OpenSource/setup/core-services

Yczar · web-flow · commit 74a45f45a714 · 2024-12-11T20:20:43.000+01:00
chore: Setup core services
diff --git a/lib/src/config/environment.dart b/lib/src/config/environment.dart
@@ -26,7 +26,7 @@ enum Environment {
   }
 
   Map<String, String> get headers {
-    final Map<String, String> headers = {
+    final headers = <String, String>{
       'Accept': 'application/json',
       'Content-Type': 'application/json',
     };
diff --git a/lib/src/config/log_level.dart b/lib/src/config/log_level.dart
@@ -43,6 +43,6 @@ enum LogLevel {
   }
 
   bool canLog(LogLevel minimumLevel) {
-    return this.priority >= minimumLevel.priority;
+    return priority >= minimumLevel.priority;
   }
 }
diff --git a/lib/src/config/mind_paystack_config.dart b/lib/src/config/mind_paystack_config.dart
@@ -6,6 +6,40 @@ import 'package:mind_paystack/src/ui/theme.dart';
 import 'package:mind_paystack/src/utils/logger.dart';
 
 class MindPaystackConfig {
+
+  MindPaystackConfig({
+    required this.publicKey,
+    Environment environment = Environment.test,
+    LogLevel logLevel = LogLevel.info,
+    this.retryPolicy = const RetryPolicy(),
+    String currency = 'NGN',
+    String locale = 'en',
+    MPTheme? theme,
+    Duration? timeout,
+  })  : _environment = environment,
+        _logLevel = logLevel,
+        _currency = currency,
+        _locale = locale,
+        _theme = theme,
+        timeout = timeout ?? const Duration(seconds: 30) {
+    _validateConfig();
+    _initializeLogger();
+  }
+
+  /// Create config from environment variables
+  factory MindPaystackConfig.fromEnvironment() {
+    const publicKey = String.fromEnvironment('PAYSTACK_PUBLIC_KEY');
+    const environment =
+        String.fromEnvironment('PAYSTACK_ENVIRONMENT', defaultValue: 'test');
+    const logLevel =
+        String.fromEnvironment('PAYSTACK_LOG_LEVEL', defaultValue: 'info');
+
+    return MindPaystackConfig(
+      publicKey: publicKey,
+      environment: Environment.fromString(environment),
+      logLevel: LogLevel.fromString(logLevel),
+    );
+  }
   /// API public key from Paystack dashboard
   final String publicKey;
 
@@ -33,25 +67,6 @@ class MindPaystackConfig {
   /// Timeout duration for API requests
   final Duration timeout;
 
-  MindPaystackConfig({
-    required this.publicKey,
-    Environment environment = Environment.test,
-    LogLevel logLevel = LogLevel.info,
-    this.retryPolicy = const RetryPolicy(),
-    String currency = 'NGN',
-    String locale = 'en',
-    MPTheme? theme,
-    Duration? timeout,
-  })  : _environment = environment,
-        _logLevel = logLevel,
-        _currency = currency,
-        _locale = locale,
-        _theme = theme,
-        timeout = timeout ?? const Duration(seconds: 30) {
-    _validateConfig();
-    _initializeLogger();
-  }
-
   /// Environment getter
   Environment get environment => _environment;
 
@@ -114,21 +129,6 @@ class MindPaystackConfig {
     MPLogger.info('Custom logger set');
   }
 
-  /// Create config from environment variables
-  factory MindPaystackConfig.fromEnvironment() {
-    const publicKey = String.fromEnvironment('PAYSTACK_PUBLIC_KEY');
-    const environment =
-        String.fromEnvironment('PAYSTACK_ENVIRONMENT', defaultValue: 'test');
-    const logLevel =
-        String.fromEnvironment('PAYSTACK_LOG_LEVEL', defaultValue: 'info');
-
-    return MindPaystackConfig(
-      publicKey: publicKey,
-      environment: Environment.fromString(environment),
-      logLevel: LogLevel.fromString(logLevel),
-    );
-  }
-
   /// Validate configuration
   void _validateConfig() {
     if (publicKey.isEmpty) {
@@ -193,7 +193,7 @@ class MindPaystackConfig {
       retryPolicy: retryPolicy ?? this.retryPolicy,
       currency: currency ?? this.currency,
       locale: locale ?? this.locale,
-      theme: theme ?? this._theme,
+      theme: theme ?? _theme,
       timeout: timeout ?? this.timeout,
     );
   }
diff --git a/lib/src/config/retry_policy.dart b/lib/src/config/retry_policy.dart
@@ -2,6 +2,24 @@
 import 'dart:math';
 
 class RetryPolicy {
+
+  const RetryPolicy({
+    this.maxAttempts = 3,
+    this.baseDelay = 1000,
+    this.maxDelay = 10000,
+    this.backoffFactor = 2.0,
+    Set<int>? retryStatusCodes,
+  }) : retryStatusCodes = retryStatusCodes ?? const {408, 500, 502, 503, 504};
+
+  /// Create a policy for testing with shorter delays
+  factory RetryPolicy.testing() {
+    return const RetryPolicy(
+      maxAttempts: 2,
+      baseDelay: 100,
+      maxDelay: 1000,
+      backoffFactor: 1.5,
+    );
+  }
   /// Maximum number of retry attempts
   final int maxAttempts;
 
@@ -17,14 +35,6 @@ class RetryPolicy {
   /// Set of status codes that should trigger a retry
   final Set<int> retryStatusCodes;
 
-  const RetryPolicy({
-    this.maxAttempts = 3,
-    this.baseDelay = 1000,
-    this.maxDelay = 10000,
-    this.backoffFactor = 2.0,
-    Set<int>? retryStatusCodes,
-  }) : retryStatusCodes = retryStatusCodes ?? const {408, 500, 502, 503, 504};
-
   /// Calculate delay for a specific attempt
   Duration getDelayForAttempt(int attempt) {
     if (attempt <= 0) return Duration.zero;
@@ -40,16 +50,6 @@ class RetryPolicy {
     return attempt < maxAttempts && retryStatusCodes.contains(statusCode);
   }
 
-  /// Create a policy for testing with shorter delays
-  factory RetryPolicy.testing() {
-    return const RetryPolicy(
-      maxAttempts: 2,
-      baseDelay: 100,
-      maxDelay: 1000,
-      backoffFactor: 1.5,
-    );
-  }
-
   RetryPolicy copyWith({
     int? maxAttempts,
     int? baseDelay,
diff --git a/lib/src/core/exceptions.dart b/lib/src/core/exceptions.dart
@@ -2,6 +2,12 @@
 
 /// Base exception class for Mind Paystack SDK
 class PaystackException implements Exception {
+
+  PaystackException({
+    required this.message,
+    required this.code,
+    this.details,
+  });
   /// Human-readable error message
   final String message;
 
@@ -11,12 +17,6 @@ class PaystackException implements Exception {
   /// Additional error details
   final Map<String, dynamic>? details;
 
-  PaystackException({
-    required this.message,
-    required this.code,
-    this.details,
-  });
-
   @override
   String toString() => 'PaystackException: $message (Code: $code)';
 }
diff --git a/lib/src/core/retry_interceptor.dart b/lib/src/core/retry_interceptor.dart
@@ -5,16 +5,16 @@ import 'package:dio/dio.dart';
 import 'package:mind_paystack/src/config/retry_policy.dart';
 
 class RetryInterceptor extends Interceptor {
-  final Dio dio;
-  final RetryPolicy retryPolicy;
-  final void Function(String message)? logger;
-  final _pendingRequests = <String, Completer<void>>{};
 
   RetryInterceptor({
     required this.dio,
     required this.retryPolicy,
     this.logger,
   });
+  final Dio dio;
+  final RetryPolicy retryPolicy;
+  final void Function(String message)? logger;
+  final _pendingRequests = <String, Completer<void>>{};
 
   @override
   Future<void> onError(
@@ -150,6 +150,6 @@ extension RetryDioExtension on Dio {
       dio: this,
       retryPolicy: policy,
       logger: logger,
-    ));
+    ),);
   }
 }
diff --git a/lib/src/model/bank_model.dart b/lib/src/model/bank_model.dart
@@ -0,0 +1,24 @@
+class BankResponse {
+  BankResponse({
+    required this.name,
+    required this.code,
+  });
+
+  /// Factory method to create a Bank instance from JSON
+  factory BankResponse.fromJson(Map<String, dynamic> json) {
+    return BankResponse(
+      name: json['name'] as String,
+      code: json['code'] as String,
+    );
+  }
+  final String name;
+  final String code;
+
+  /// Converts a Bank instance to JSON
+  Map<String, dynamic> toJson() {
+    return {
+      'name': name,
+      'code': code,
+    };
+  }
+}
diff --git a/lib/src/services/bank_payment_service.dart b/lib/src/services/bank_payment_service.dart
@@ -0,0 +1,87 @@
+import 'package:mind_paystack/src/client/mind_paystack_client.dart';
+import 'package:mind_paystack/src/config/retry_policy.dart';
+import 'package:mind_paystack/src/model/bank_model.dart';
+import 'package:mind_paystack/src/ui/app_api_endpoints.dart';
+
+abstract class BankPaymentService {
+  Future<Map<String, dynamic>> initializePayment({
+    required String accountNumber,
+    required String bankCode,
+    required double amount,
+    required String currency,
+    String? email,
+    Map<String, dynamic>? metadata,
+  });
+
+  Future<Map<String, dynamic>> verifyPayment(String paymentReference);
+
+  Future<Map<String, dynamic>> getPaymentStatus(String paymentId);
+
+  Future<List<BankResponse>> fetchBanks();
+}
+
+class BankPaymentServiceImpl implements BankPaymentService {
+  BankPaymentServiceImpl({
+    required RetryPolicy retryPolicy,
+    required MindPaystackClient mindPaystackClient,
+  })  : _mindPaystackClient = mindPaystackClient,
+        _retryPolicy = retryPolicy;
+  final MindPaystackClient _mindPaystackClient;
+  final RetryPolicy _retryPolicy;
+
+  @override
+  Future<Map<String, dynamic>> initializePayment({
+    required String accountNumber,
+    required String bankCode,
+    required double amount,
+    required String currency,
+    String? email,
+    Map<String, dynamic>? metadata,
+  }) async {
+    final response = await _mindPaystackClient.post<Map<String, dynamic>>(
+      AppApiEndpoints.initializePayment,
+      data: {
+        'account_number': accountNumber,
+        'bank_code': bankCode,
+        'amount': amount,
+        'currency': currency,
+        'email': email,
+        'metadata': metadata,
+      },
+    );
+    return response;
+  }
+
+  @override
+  Future<Map<String, dynamic>> verifyPayment(String paymentReference) async {
+    final response = await _mindPaystackClient.get<Map<String, dynamic>>(
+      AppApiEndpoints.verifyPayment,
+      queryParams: {'paymentReference': paymentReference},
+    );
+    return response;
+  }
+
+  @override
+  Future<Map<String, dynamic>> getPaymentStatus(String paymentId) async {
+    final response = await _mindPaystackClient.get<Map<String, dynamic>>(
+      AppApiEndpoints.getPaymentStatus,
+      queryParams: {'paymentId': paymentId},
+    );
+
+    return response;
+  }
+
+  @override
+  Future<List<BankResponse>> fetchBanks() async {
+    final response = await _mindPaystackClient.get<Map<String, dynamic>>(
+      AppApiEndpoints.getBanks,
+    );
+    final transactions = response['data'] as List<dynamic>;
+    return transactions
+        .map(
+          (json) =>
+              BankResponse.fromJson(Map<String, dynamic>.from(json as Map)),
+        )
+        .toList();
+  }
+}
diff --git a/lib/src/services/transaction_service.dart b/lib/src/services/transaction_service.dart
@@ -0,0 +1,42 @@
+import 'package:mind_paystack/src/client/mind_paystack_client.dart';
+import 'package:mind_paystack/src/config/retry_policy.dart';
+import 'package:mind_paystack/src/ui/app_api_endpoints.dart';
+
+abstract class TransactionService {
+  Future<Map<String, dynamic>> verifyTransaction(String transactionReference);
+
+  Future<Map<String, dynamic>> getTransactionStatus(String transactionId);
+}
+
+class TransactionServiceImpl implements TransactionService {
+  TransactionServiceImpl({
+    required RetryPolicy retryPolicy,
+    required MindPaystackClient mindPaystackClient,
+  })  : _mindPaystackClient = mindPaystackClient,
+        _retryPolicy = retryPolicy;
+  final MindPaystackClient _mindPaystackClient;
+  final RetryPolicy _retryPolicy;
+
+  @override
+  Future<Map<String, dynamic>> getTransactionStatus(
+    String transactionId,
+  ) async {
+    final response = await _mindPaystackClient.get<Map<String, dynamic>>(
+      AppApiEndpoints.getTransactionStatus,
+      queryParams: {'transactionId': transactionId},
+    );
+
+    return response;
+  }
+
+  @override
+  Future<Map<String, dynamic>> verifyTransaction(
+    String transactionReference,
+  ) async {
+    final response = await _mindPaystackClient.get<Map<String, dynamic>>(
+      AppApiEndpoints.verifyTransaction,
+      queryParams: {'transactionReference': transactionReference},
+    );
+    return response;
+  }
+}
diff --git a/lib/src/ui/theme.dart b/lib/src/ui/theme.dart
diff --git a/lib/src/utils/app_api_endpoints.dart b/lib/src/utils/app_api_endpoints.dart
diff --git a/lib/src/utils/logger.dart b/lib/src/utils/logger.dart
diff --git a/lib/src/utils/validators.dart b/lib/src/utils/validators.dart

Original file line number	Diff line number	Diff line change
`@@ -26,7 +26,7 @@ enum Environment {`
`26`	`26`	`}`
`27`	`27`
`28`	`28`	`Map<String, String> get headers {`
`29`		`- final Map<String, String> headers = {`
	`29`	`+ final headers = <String, String>{`
`30`	`30`	`'Accept': 'application/json',`
`31`	`31`	`'Content-Type': 'application/json',`
`32`	`32`	`};`
Original file line number	Diff line number	Diff line change
`@@ -43,6 +43,6 @@ enum LogLevel {`
`43`	`43`	`}`
`44`	`44`
`45`	`45`	`bool canLog(LogLevel minimumLevel) {`
`46`		`- return this.priority >= minimumLevel.priority;`
	`46`	`+ return priority >= minimumLevel.priority;`
`47`	`47`	`}`
`48`	`48`	`}`