Task: Add async support and functions for configurable and add tests for async testing and updated the functions with default

lib/configurable.dart

@@ -6,6 +6,11 @@ import 'package:configurable/system_config.dart';
 String? getConfigOrNull(String key, {String? defaultValue}) =>
     SystemConfig.getOrNull(key, defaultValue: defaultValue);
 
+/// get config or null from system config in async
+Future<String?> getConfigOrNullAsync(String key,
+        {String? defaultValue}) async =>
+    await SystemConfig.getOrNullAsync(key, defaultValue: defaultValue);
+
 /// get config with non-null from system config
 String getConfig(String key, {String? defaultValue}) =>
     SystemConfig.get(key, defaultValue: defaultValue);
@@ -13,5 +18,20 @@ String getConfig(String key, {String? defaultValue}) =>
 /// check has config key or not from system config
 bool hasConfigkey(String key) => SystemConfig.containsKey(key);
 
-/// set config into memory
+/// check has config key or not from system config in async function
+Future<bool> hasConfigkeyAsync(String key) async =>
+    await SystemConfig.containsKeyAsync(key);
+
+/// set config into memory or custom provider
 void setConfig(String key, String? value) => SystemConfig.set(key, value);
+
+/// set config into memory or custom provider in async function
+Future<void> setConfigAsync(String key, String? value) async =>
+    await SystemConfig.setAsync(key, value);
+
+/// remove config into memory or custom provider
+void removeConfig(String key) => SystemConfig.remove(key);
+
+/// remove config into memory or custom provider in async function
+Future<void> removeConfigAsync(String key) async =>
+    await SystemConfig.removeAsync(key);

lib/configuration_provider.dart

@@ -8,4 +8,14 @@ abstract class ConfigurationProvider {
 
   /// get or null in implemented classes
   String? getOrNull(String key, {String? defaultValue});
+
+  /// check has key or not for async function
+  Future<bool> containsKeyAsync(String key) async {
+    return Future.value(containsKey(key));
+  }
+
+  /// get or null for async function
+  Future<String?> getOrNullAsync(String key, {String? defaultValue}) async {
+    return Future.value(getOrNull(key, defaultValue: defaultValue));
+  }
 }

lib/dotenv_configuration_provider.dart

@@ -5,7 +5,7 @@ import 'package:configurable/dotenv/dotenv.dart' show env, load;
 ///
 /// @author sombochea
 /// @since 1.0.0
-class DotenvConfigurationProvider implements ConfigurationProvider {
+class DotenvConfigurationProvider extends ConfigurationProvider {
   /// default constructor to load the platform environment
   DotenvConfigurationProvider() {
     load();

lib/mutable_configurable_provider.dart

@@ -4,16 +4,42 @@ import 'package:configurable/configuration_provider.dart';
 ///
 /// @author sombochea
 /// @since 1.0.3
-abstract class MutableConfigurationProvider implements ConfigurationProvider {
+abstract class MutableConfigurationProvider extends ConfigurationProvider {
   /// Allow to set the value into config values
   void set(String key, String? value);
 
   /// Allow to set all values into config values
-  void setAll(Map<String, String?> configs);
+  void setAll(Map<String, String?> configs) {
+    configs.forEach((key, value) {
+      set(key, value);
+    });
+  }
 
   /// Allow to remove the key from config values
   void remove(String key);
 
   /// Allow to remove all values from config values
   void removeAll();
+
+  /// Allow to set the value into config values in async function
+  Future<void> setAsync(String key, String? value) async {
+    set(key, value);
+  }
+
+  /// Allow to set all values into config values in async function
+  Future<void> setAllAsync(Map<String, String?> configs) async {
+    configs.forEach((key, value) {
+      setAsync(key, value);
+    });
+  }
+
+  /// Allow to remove the key from config values in async function
+  Future<void> removeAsync(String key) async {
+    remove(key);
+  }
+
+  /// Allow to remove all values from config values in async function
+  Future<void> removeAllAsync() async {
+    removeAll();
+  }
 }

lib/simple_configuration_provider.dart

@@ -4,7 +4,7 @@ import 'package:configurable/mutable_configurable_provider.dart';
 ///
 /// @author sombochea
 /// @since 1.0.0
-class SimpleConfigurationProvider implements MutableConfigurationProvider {
+class SimpleConfigurationProvider extends MutableConfigurationProvider {
   final Map<String, String?> _configs = {};
 
   @override

lib/system_config.dart

@@ -30,8 +30,15 @@ class SystemConfig {
     return getProvider().getOrNull(key, defaultValue: defaultValue);
   }
 
+  static Future<String?> getOrNullAsync(String key, {String? defaultValue}) {
+    return getProvider().getOrNullAsync(key, defaultValue: defaultValue);
+  }
+
   static bool containsKey(String key) => getProvider().containsKey(key);
 
+  static Future<bool> containsKeyAsync(String key) =>
+      getProvider().containsKeyAsync(key);
+
   /// Convert to mutable configuration provider
   static MutableConfigurationProvider _getMutableConfigurationProvider() {
     if (_provider is MutableConfigurationProvider) {
@@ -46,7 +53,31 @@ class SystemConfig {
     _getMutableConfigurationProvider().set(key, value);
   }
 
+  static Future<void> setAsync(String key, String? value) async {
+    await _getMutableConfigurationProvider().setAsync(key, value);
+  }
+
   static void setAll(Map<String, String?> values) {
     _getMutableConfigurationProvider().setAll(values);
   }
+
+  static Future<void> setAllAsync(Map<String, String?> values) async {
+    await _getMutableConfigurationProvider().setAllAsync(values);
+  }
+
+  static void remove(String key) {
+    _getMutableConfigurationProvider().remove(key);
+  }
+
+  static Future<void> removeAsync(String key) async {
+    await _getMutableConfigurationProvider().removeAsync(key);
+  }
+
+  static void removeAll() {
+    _getMutableConfigurationProvider().removeAll();
+  }
+
+  static Future<void> removeAllAsync() async {
+    await _getMutableConfigurationProvider().removeAllAsync();
+  }
 }