diff --git a/.editorconfig b/.editorconfig new file mode 100644 index 0000000..a0401d0 --- /dev/null +++ b/.editorconfig @@ -0,0 +1,269 @@ +# Supprimer la ligne ci-dessous si vous voulez hériter les paramètres .editorconfig des répertoires supérieurs +root = true + +# Fichiers C# +[*.cs] + +#### Options EditorConfig principales #### + +# Indentation et espacement +indent_size = 4 +indent_style = space +tab_width = 4 + +# Préférences de nouvelle ligne +end_of_line = crlf +insert_final_newline = false + +#### Conventions de codage .NET #### + +# Organiser les instructions Using +dotnet_separate_import_directive_groups = false +dotnet_sort_system_directives_first = false +file_header_template = unset + +# Préférences de this. et Me. +dotnet_style_qualification_for_event = false +dotnet_style_qualification_for_field = false +dotnet_style_qualification_for_method = false +dotnet_style_qualification_for_property = false + +# Préférences des mots clés de langage par rapport aux types BCL +dotnet_style_predefined_type_for_locals_parameters_members = true +dotnet_style_predefined_type_for_member_access = true + +# Préférences de parenthèses +dotnet_style_parentheses_in_arithmetic_binary_operators = always_for_clarity +dotnet_style_parentheses_in_other_binary_operators = always_for_clarity +dotnet_style_parentheses_in_other_operators = never_if_unnecessary +dotnet_style_parentheses_in_relational_binary_operators = always_for_clarity + +# Préférences de modificateur +dotnet_style_require_accessibility_modifiers = for_non_interface_members + +# Préférences de niveau expression +dotnet_style_coalesce_expression = true +dotnet_style_collection_initializer = true +dotnet_style_explicit_tuple_names = true +dotnet_style_namespace_match_folder = true +dotnet_style_null_propagation = true +dotnet_style_object_initializer = true +dotnet_style_operator_placement_when_wrapping = beginning_of_line +dotnet_style_prefer_auto_properties = true +dotnet_style_prefer_collection_expression = when_types_loosely_match +dotnet_style_prefer_compound_assignment = true +dotnet_style_prefer_conditional_expression_over_assignment = true +dotnet_style_prefer_conditional_expression_over_return = true +dotnet_style_prefer_foreach_explicit_cast_in_source = when_strongly_typed +dotnet_style_prefer_inferred_anonymous_type_member_names = true +dotnet_style_prefer_inferred_tuple_names = true +dotnet_style_prefer_is_null_check_over_reference_equality_method = true +dotnet_style_prefer_simplified_boolean_expressions = true +dotnet_style_prefer_simplified_interpolation = true + +# Préférences de champ +dotnet_style_readonly_field = true + +# Préférences de paramètre +dotnet_code_quality_unused_parameters = all + +# Préférences de suppression +dotnet_remove_unnecessary_suppression_exclusions = none + +# Préférences de nouvelle ligne +dotnet_style_allow_multiple_blank_lines_experimental = true +dotnet_style_allow_statement_immediately_after_block_experimental = true + +#### Conventions de codage C# #### + +# Préférences de var +csharp_style_var_elsewhere = false:silent +csharp_style_var_for_built_in_types = false:silent +csharp_style_var_when_type_is_apparent = false:silent + +# Membres expression-bodied +csharp_style_expression_bodied_accessors = true:silent +csharp_style_expression_bodied_constructors = false:silent +csharp_style_expression_bodied_indexers = true:silent +csharp_style_expression_bodied_lambdas = true:silent +csharp_style_expression_bodied_local_functions = false:silent +csharp_style_expression_bodied_methods = false:silent +csharp_style_expression_bodied_operators = false:silent +csharp_style_expression_bodied_properties = true:silent + +# Préférences correspondants au modèle +csharp_style_pattern_matching_over_as_with_null_check = true:suggestion +csharp_style_pattern_matching_over_is_with_cast_check = true:suggestion +csharp_style_prefer_extended_property_pattern = true:suggestion +csharp_style_prefer_not_pattern = true:suggestion +csharp_style_prefer_pattern_matching = true:silent +csharp_style_prefer_switch_expression = true:suggestion + +# Préférences de vérification de valeur Null +csharp_style_conditional_delegate_call = true:suggestion + +# Préférences de modificateur +csharp_prefer_static_local_function = true:suggestion +csharp_preferred_modifier_order = public,private,protected,internal,file,static,extern,new,virtual,abstract,sealed,override,readonly,unsafe,required,volatile,async +csharp_style_prefer_readonly_struct = true:suggestion +csharp_style_prefer_readonly_struct_member = true:suggestion + +# Préférences de bloc de code +csharp_prefer_braces = true:silent +csharp_prefer_simple_using_statement = true:suggestion +csharp_style_namespace_declarations = block_scoped:silent +csharp_style_prefer_method_group_conversion = true:silent +csharp_style_prefer_primary_constructors = true:suggestion +csharp_style_prefer_top_level_statements = true:silent + +# Préférences de niveau expression +csharp_prefer_simple_default_expression = true:suggestion +csharp_style_deconstructed_variable_declaration = true:suggestion +csharp_style_implicit_object_creation_when_type_is_apparent = true:suggestion +csharp_style_inlined_variable_declaration = true:suggestion +csharp_style_prefer_index_operator = true:suggestion +csharp_style_prefer_local_over_anonymous_function = true:suggestion +csharp_style_prefer_null_check_over_type_check = true:suggestion +csharp_style_prefer_range_operator = true:suggestion +csharp_style_prefer_tuple_swap = true:suggestion +csharp_style_prefer_utf8_string_literals = true:suggestion +csharp_style_throw_expression = true:suggestion +csharp_style_unused_value_assignment_preference = discard_variable:suggestion +csharp_style_unused_value_expression_statement_preference = discard_variable:silent + +# Préférences pour la directive 'using' +csharp_using_directive_placement = outside_namespace:silent + +# Préférences de nouvelle ligne +csharp_style_allow_blank_line_after_colon_in_constructor_initializer_experimental = true:silent +csharp_style_allow_blank_line_after_token_in_arrow_expression_clause_experimental = true:silent +csharp_style_allow_blank_line_after_token_in_conditional_expression_experimental = true:silent +csharp_style_allow_blank_lines_between_consecutive_braces_experimental = true:silent +csharp_style_allow_embedded_statements_on_same_line_experimental = true:silent + +#### Règles de formatage C# #### + +# Préférences de nouvelle ligne +csharp_new_line_before_catch = true +csharp_new_line_before_else = true +csharp_new_line_before_finally = true +csharp_new_line_before_members_in_anonymous_types = true +csharp_new_line_before_members_in_object_initializers = true +csharp_new_line_before_open_brace = all +csharp_new_line_between_query_expression_clauses = true + +# Préférences de mise en retrait +csharp_indent_block_contents = true +csharp_indent_braces = false +csharp_indent_case_contents = true +csharp_indent_case_contents_when_block = true +csharp_indent_labels = one_less_than_current +csharp_indent_switch_labels = true + +# Préférences d'espace +csharp_space_after_cast = false +csharp_space_after_colon_in_inheritance_clause = true +csharp_space_after_comma = true +csharp_space_after_dot = false +csharp_space_after_keywords_in_control_flow_statements = true +csharp_space_after_semicolon_in_for_statement = true +csharp_space_around_binary_operators = before_and_after +csharp_space_around_declaration_statements = false +csharp_space_before_colon_in_inheritance_clause = true +csharp_space_before_comma = false +csharp_space_before_dot = false +csharp_space_before_open_square_brackets = false +csharp_space_before_semicolon_in_for_statement = false +csharp_space_between_empty_square_brackets = false +csharp_space_between_method_call_empty_parameter_list_parentheses = false +csharp_space_between_method_call_name_and_opening_parenthesis = false +csharp_space_between_method_call_parameter_list_parentheses = false +csharp_space_between_method_declaration_empty_parameter_list_parentheses = false +csharp_space_between_method_declaration_name_and_open_parenthesis = false +csharp_space_between_method_declaration_parameter_list_parentheses = false +csharp_space_between_parentheses = false +csharp_space_between_square_brackets = false + +# Préférences d'enveloppement +csharp_preserve_single_line_blocks = true +csharp_preserve_single_line_statements = true + +#### Styles de nommage #### + +# Règles de nommage + +dotnet_naming_rule.interface_should_be_begins_with_i.severity = suggestion +dotnet_naming_rule.interface_should_be_begins_with_i.symbols = interface +dotnet_naming_rule.interface_should_be_begins_with_i.style = begins_with_i + +dotnet_naming_rule.types_should_be_pascal_case.severity = suggestion +dotnet_naming_rule.types_should_be_pascal_case.symbols = types +dotnet_naming_rule.types_should_be_pascal_case.style = pascal_case + +dotnet_naming_rule.non_field_members_should_be_pascal_case.severity = suggestion +dotnet_naming_rule.non_field_members_should_be_pascal_case.symbols = non_field_members +dotnet_naming_rule.non_field_members_should_be_pascal_case.style = pascal_case + +# Spécifications de symboles + +dotnet_naming_symbols.interface.applicable_kinds = interface +dotnet_naming_symbols.interface.applicable_accessibilities = public, internal, private, protected, protected_internal, private_protected +dotnet_naming_symbols.interface.required_modifiers = + +dotnet_naming_symbols.types.applicable_kinds = class, struct, interface, enum +dotnet_naming_symbols.types.applicable_accessibilities = public, internal, private, protected, protected_internal, private_protected +dotnet_naming_symbols.types.required_modifiers = + +dotnet_naming_symbols.non_field_members.applicable_kinds = property, event, method +dotnet_naming_symbols.non_field_members.applicable_accessibilities = public, internal, private, protected, protected_internal, private_protected +dotnet_naming_symbols.non_field_members.required_modifiers = + +# Styles de nommage + +dotnet_naming_style.pascal_case.required_prefix = +dotnet_naming_style.pascal_case.required_suffix = +dotnet_naming_style.pascal_case.word_separator = +dotnet_naming_style.pascal_case.capitalization = pascal_case + +dotnet_naming_style.begins_with_i.required_prefix = I +dotnet_naming_style.begins_with_i.required_suffix = +dotnet_naming_style.begins_with_i.word_separator = +dotnet_naming_style.begins_with_i.capitalization = pascal_case + +[*.{cs,vb}] +tab_width = 4 +indent_size = 4 +dotnet_style_readonly_field = true:suggestion +dotnet_style_require_accessibility_modifiers = always:silent +indent_style = space +dotnet_style_operator_placement_when_wrapping = beginning_of_line +end_of_line = crlf +dotnet_style_coalesce_expression = true:suggestion +dotnet_style_prefer_is_null_check_over_reference_equality_method = true:suggestion +dotnet_style_null_propagation = true:suggestion +dotnet_style_object_initializer = true:suggestion +dotnet_style_prefer_auto_properties = true:silent +dotnet_style_collection_initializer = true:suggestion +dotnet_style_prefer_simplified_boolean_expressions = true:suggestion +dotnet_style_prefer_conditional_expression_over_assignment = true:silent +dotnet_style_prefer_conditional_expression_over_return = true:silent +dotnet_style_explicit_tuple_names = true:suggestion +dotnet_style_prefer_inferred_tuple_names = true:suggestion +dotnet_style_prefer_inferred_anonymous_type_member_names = true:suggestion +dotnet_style_prefer_compound_assignment = true:suggestion +dotnet_style_prefer_simplified_interpolation = true:suggestion +dotnet_style_prefer_collection_expression = when_types_loosely_match:suggestion +dotnet_style_namespace_match_folder = true:suggestion +dotnet_style_allow_multiple_blank_lines_experimental = true:silent +dotnet_style_allow_statement_immediately_after_block_experimental = true:silent +dotnet_code_quality_unused_parameters = all:suggestion +dotnet_style_parentheses_in_arithmetic_binary_operators = always_for_clarity:silent +dotnet_style_parentheses_in_other_binary_operators = always_for_clarity:silent +dotnet_style_parentheses_in_relational_binary_operators = always_for_clarity:silent +dotnet_style_parentheses_in_other_operators = never_if_unnecessary:silent +dotnet_style_qualification_for_field = false:silent +dotnet_style_qualification_for_property = false:silent +dotnet_style_qualification_for_method = false:silent +dotnet_style_qualification_for_event = false:silent +dotnet_style_predefined_type_for_locals_parameters_members = true:silent +dotnet_style_predefined_type_for_member_access = true:silent \ No newline at end of file diff --git a/Copy/Config.cs b/Copy/Config.cs new file mode 100644 index 0000000..42c07de --- /dev/null +++ b/Copy/Config.cs @@ -0,0 +1,134 @@ +using Copy.Types; +using Newtonsoft.Json; +using Newtonsoft.Json.Schema.Generation; + +namespace Copy +{ + /// + /// Json serializable configuration class. + /// + internal class Config + { + /// + /// Path to the configuration file. + /// + public static string ConfigPath = Path.Combine(Directory.GetCurrentDirectory(), "config.json"); + /// + /// Path to the scheme file. + /// + public static string SchemePath = Path.Combine(Directory.GetCurrentDirectory(), "scheme.json"); + + /// + /// Indicates if the program is in debug mode. + /// + [JsonProperty("Debug", Required = Required.DisallowNull)] + public bool Debug { get; set; } = false; + /// + /// List of clients. + /// + [JsonProperty("Clients", Required = Required.AllowNull)] + public List Clients = []; + + /// + /// List of tasks. + /// + [JsonProperty("Tasks", Required = Required.AllowNull)] + public List Tasks = []; + + /// + /// Load the configuration from the file. + /// + /// Path to the configuration file. + /// Configuration. + public static Config Load(string path) + { + using FileStream stream = new(path, FileMode.Open); + using StreamReader reader = new(stream); + string json = reader.ReadToEnd(); + return JsonConvert.DeserializeObject(json) ?? throw new InvalidDataException("Cannot deserialize the configuration."); + } + /// + /// Obtain the JSON scheme of the configuration. + /// + /// JSON scheme of the configuration. + public static string GetScheme() + { + return new JSchemaGenerator().Generate(typeof(Config)).ToString(); + } + /// + /// Obtain the default configuration. + /// + /// Default configuration. + public static string GetDefault() + { + return JsonConvert.SerializeObject(new Config() + { + + Clients = [ + new Client() + { + Type = ClientType.FTP, + Name = "FTP", + Host = "ftp.example.com", + Port = 21, + Username = "user", + Password = "password" + }, + new Client() + { + Type = ClientType.SFTP, + Name = "SFTP", + Host = "sftp.example.com", + Port = 22, + Username = "user", + Password = "password" + }, + new Client() + { + Type = ClientType.Local, + Name = "Local", + Host = "localhost", + }, + new Client() + { + Type = ClientType.Exchange, + Name = "Exchange", + Host = "exchange.example.com", + Username = "user@example.com", + Password = "password" + } + ], + Tasks = [ + new CopyTask() + { + Client = "FTP", + Source = "source", + Destination = "destination", + Delete = true + }, + new CopyTask() + { + Source = "source", + Destination = "destination", + Client = "SFTP", + Filter = "*.txt" + }, + new CopyTask() + { + Source = "source", + Destination = "destination", + Client = "Local", + Delete = true, + Filter = "*.txt" + }, + new CopyTask() + { + Source = "source", + Destination = "destination", + Client = "Exchange" + } + ] + }, Formatting.Indented); + } + } +} diff --git a/Copy/Copy.csproj b/Copy/Copy.csproj index 2150e37..4c3a9dd 100644 --- a/Copy/Copy.csproj +++ b/Copy/Copy.csproj @@ -1,10 +1,21 @@  - - Exe - net8.0 - enable - enable - + + Exe + net8.0 + latest + enable + enable + true + true + FRFlo.Copy + FRFlo + Copy software scoped for professional use + + + + + + diff --git a/Copy/Helpers/EnumExtensions.cs b/Copy/Helpers/EnumExtensions.cs new file mode 100644 index 0000000..5333b14 --- /dev/null +++ b/Copy/Helpers/EnumExtensions.cs @@ -0,0 +1,44 @@ +using System.ComponentModel; +using System.Reflection; +using System.Runtime.Serialization; + +namespace Copy.Helpers +{ + /// + /// Extension methods for class. + /// + public static class EnumExtensions + { + + /// + /// Retrieves the value of an attribute of an enum value. + /// + /// Attribute type + /// Enum value + /// Attribute value + public static T? GetAttribute(this Enum value) where T : Attribute + { + return value.GetType() + .GetMember(value.ToString()) + .FirstOrDefault()? + .GetCustomAttribute(); + } + /// + /// Retrieves the description of an enum value. + /// + /// Enum value + /// Description + public static string GetDescription(this Enum value) + { + return value.GetAttribute()?.Description ?? value.ToString(); + } + /// + /// Retrieves the value of an of an enum value. + /// + /// Enum value + public static string GetEnumMember(this Enum value) + { + return value.GetAttribute()?.Value ?? value.ToString(); + } + } +} diff --git a/Copy/Logger.cs b/Copy/Logger.cs new file mode 100644 index 0000000..8196b1f --- /dev/null +++ b/Copy/Logger.cs @@ -0,0 +1,137 @@ +using System.Text; + +namespace CSBase +{ + /// + /// Logger class. + /// + public static class Logger + { + /// + /// Indicates if the program is in debug mode. + /// + public static bool IsDebug { get; set; } = false; + /// + /// Path to the log file. + /// + /// In debug mode, it is located in the program folder with the name "debug.log". + /// In production mode, it is located in the program folder with the name "production.log". + /// + /// + public static string LogFilePath { get; set; } = Path.Combine(Directory.GetCurrentDirectory(), +#if DEBUG + "debug.log"); +#else + "production.log"); +#endif + /// + /// Indicates if the logger should write logs to the file. + /// + public static bool LogToFile { get; set; } = true; + /// + /// Shows a message in the console and writes it to the log file. + /// + /// Prefix of the message + /// Color of the prefix + /// Message to show + /// Color of the message + /// Icon to show before the message + private static void Print(string prefix, ConsoleColor prefixColor, string message, ConsoleColor color = ConsoleColor.White, LoggerIcon? icon = null) + { + StringBuilder sb = new(); + if (message.EndsWith('\n')) + { + message = message[..^1]; + } + + if (prefix != "DEBUG" || IsDebug) + { + foreach (string line in message.Split('\n')) + { + Console.ForegroundColor = ConsoleColor.Gray; + Console.Write($"{DateTime.Now:dd/MM/yyyy, HH:mm:fff} "); + Console.BackgroundColor = prefixColor; + Console.ForegroundColor = ConsoleColor.White; + Console.Write(prefix); + if (icon != null) + { + Console.BackgroundColor = icon.BackgroundColor; + Console.ForegroundColor = icon.ForegroundColor; + Console.Write($" {icon.Icon} "); + } + Console.BackgroundColor = ConsoleColor.Black; + Console.ForegroundColor = color; + Console.WriteLine($" {line}"); + Console.ResetColor(); + + sb.Append($"{DateTime.Now:dd/MM/yyyy, HH:mm:fff} {prefix} {line}\n"); + } + } + string final = sb.ToString(); + + if (LogToFile) File.AppendAllText(LogFilePath, final, Encoding.UTF8); + } + + /// + /// Shows a debug message in the console and writes it to the log file. + /// + /// Message to show + /// Icon to show before the message + public static void Debug(string message, LoggerIcon? icon = null) + { + Print("DEBUG", ConsoleColor.DarkGreen, message, ConsoleColor.Green, icon); + } + + /// + /// Shows a info message in the console and writes it to the log file. + /// + /// Message to show + /// Icon to show before the message + public static void Info(string message, LoggerIcon? icon = null) + { + Print("INFO", ConsoleColor.DarkBlue, message, ConsoleColor.Blue, icon); + } + + /// + /// Shows a warn message in the console and writes it to the log file. + /// + /// Message to show + /// Icon to show before the message + public static void Warn(string message, LoggerIcon? icon = null) + { + Print("WARN", ConsoleColor.DarkYellow, message, ConsoleColor.Yellow, icon); + } + + /// + /// Shows a error message in the console and writes it to the log file. + /// + /// Message to show + /// Icon to show before the message + public static void Error(string message, LoggerIcon? icon = null) + { + Print("ERREUR", ConsoleColor.DarkRed, message, ConsoleColor.Red, icon); + } + } + + /// + /// Class to define an icon for the logger. + /// + /// Unicode text defining the icon + /// Foreground color of the icon + /// Background color of the icon + public class LoggerIcon(string icon, ConsoleColor iconColor, ConsoleColor iconBackground) + { + /// + /// Unicode text defining the icon + /// + public string Icon { get; set; } = icon; + /// + /// Foreground color of the icon + /// + public ConsoleColor ForegroundColor { get; set; } = iconColor; + /// + /// Background color of the icon + /// + public ConsoleColor BackgroundColor { get; set; } = iconBackground; + } +} diff --git a/Copy/Program.cs b/Copy/Program.cs index 3751555..ed3dcc5 100644 --- a/Copy/Program.cs +++ b/Copy/Program.cs @@ -1,2 +1,23 @@ -// See https://aka.ms/new-console-template for more information -Console.WriteLine("Hello, World!"); +namespace Copy +{ + internal class Program + { + internal static Config Config = Config.Load(Config.ConfigPath); + public static void Main(string[] args) + { + if (args.Length > 0) + { + switch (args[0]) + { + case "config": + File.WriteAllText(Config.SchemePath, Config.GetScheme()); + File.WriteAllText(Config.ConfigPath, Config.GetDefault()); + break; + default: + Config.ConfigPath = args[0]; + break; + } + } + } + } +} diff --git a/Copy/Types/Client.cs b/Copy/Types/Client.cs new file mode 100644 index 0000000..dd29383 --- /dev/null +++ b/Copy/Types/Client.cs @@ -0,0 +1,67 @@ +using Newtonsoft.Json; +using System.Runtime.Serialization; + +namespace Copy.Types +{ + /// + /// Type of client used to copy files. + /// + internal enum ClientType + { + [EnumMember(Value = "FTP")] + FTP, + [EnumMember(Value = "SFTP")] + SFTP, + [EnumMember(Value = "Local")] + Local, + [EnumMember(Value = "Exchange")] + Exchange + } + /// + /// Client used to copy files. + /// + internal class Client + { + private int? _port = null; + /// + /// Type of client. + /// + [JsonProperty(PropertyName = "Type", Required = Required.Always)] + public required ClientType Type { get; set; } + /// + /// Name of the client. + /// + [JsonProperty(PropertyName = "Name", Required = Required.Always)] + public required string Name { get; set; } + /// + /// Host of the client. + /// + [JsonProperty(PropertyName = "Host", Required = Required.Always)] + public required string Host { get; set; } + /// + /// Port of the client. + /// + [JsonProperty(PropertyName = "Port", Required = Required.DisallowNull)] + public int Port + { + get => _port ?? (Type switch + { + ClientType.FTP => 21, + ClientType.SFTP => 22, + ClientType.Exchange => 443, + _ => 0 + }); + set => _port = value; + } + /// + /// Username of the client. + /// + [JsonProperty(PropertyName = "Username", Required = Required.Default)] + public string? Username { get; set; } + /// + /// Password of the client. + /// + [JsonProperty(PropertyName = "Password", Required = Required.Default)] + public string? Password { get; set; } + } +} diff --git a/Copy/Types/CopyTask.cs b/Copy/Types/CopyTask.cs new file mode 100644 index 0000000..2dff5be --- /dev/null +++ b/Copy/Types/CopyTask.cs @@ -0,0 +1,36 @@ +using Newtonsoft.Json; + +namespace Copy.Types +{ + /// + /// Task to copy files. + /// + public class CopyTask + { + /// + /// Client to use for the task. + /// + [JsonProperty(PropertyName = "Client", Required = Required.Always)] + public required string Client { get; set; } + /// + /// Source of files to copy. + /// + [JsonProperty(PropertyName = "Source", Required = Required.Always)] + public required string Source { get; set; } + /// + /// Destination of files to copy. + /// + [JsonProperty(PropertyName = "Destination", Required = Required.Always)] + public required string Destination { get; set; } + /// + /// Whether to delete files after copying. + /// + [JsonProperty(PropertyName = "Delete", Required = Required.DisallowNull)] + public bool Delete { get; set; } = false; + /// + /// Filter for files to copy. + /// + [JsonProperty(PropertyName = "Filter", Required = Required.DisallowNull)] + public string Filter { get; set; } = "*.*"; + } +} \ No newline at end of file diff --git a/Copy/Types/Singleton.cs b/Copy/Types/Singleton.cs new file mode 100644 index 0000000..567c9b5 --- /dev/null +++ b/Copy/Types/Singleton.cs @@ -0,0 +1,33 @@ +namespace Copy.Types +{ + /// + /// Base class for a thread safe singleton. + /// + /// Singleton type + public abstract class Singleton where T : new() + { + /// + /// Padlock object for thread safety. + /// + private static readonly object _padlock = new(); + /// + /// Nullable instance of the class. + /// + private static T? _instance; + + /// + /// Instance of class. + /// + public static T Instance + { + get + { + lock (_padlock) + { + return _instance ??= new T(); + } + } + set => _instance = value; + } + } +}