C0degeek.Core

C0deGeek Libraries

A collection of .NET utility libraries providing core functionality and extensions for modern C# development.

Packages

This solution produces two NuGet packages:

C0deGeek.Core (v1.0.1)

Core utilities and base functionality including:

• Type-safe enum implementation
• DateTime utilities with testing support
• Code/Name domain models
• Custom validation attributes

C0deGeek.Extensions (v1.0.1)

A comprehensive collection of extension methods enhancing basic .NET types:

• Collection extensions (safe removal operations)
• Decimal extensions (normalization and formatting)
• Enum extensions (description and member value handling)
• String extensions (enhanced null checks)
• Type extensions (reflection helpers)

Features

DateTime Utilities

• Mockable DateTime for testing
• Time zone handling
• Age calculation utilities

Type-Safe Enums

• Strongly-typed enum pattern implementation
• Code/Name/Description support
• Validation and comparison capabilities

Validation Attributes

• Enum validation (codes, descriptions, member values)
• Integration with System.ComponentModel.DataAnnotations

Extension Methods

• Enhanced LINQ-style operations
• Formatting and conversion utilities
• Reflection helpers

Installation

Add the NuGet packages to your project:

dotnet add package C0deGeek.Core
dotnet add package C0deGeek.Extensions

Usage Examples

DateTime Utilities

// Set a fixed time for testing
GeekDateTime.SetUtcDateTime(new DateTime(2024, 1, 1));

// Get current time (mockable)
var now = GeekDateTime.UtcNow;

// Calculate years passed
var years = GeekDateTime.YearsPassed(startDate, endDate);

Type-Safe Enums

public class Status : TypeSafeEnumBase<Status>
{
    public static readonly Status Active = new("ACTIVE", "Active");
    public static readonly Status Inactive = new("INACTIVE", "Inactive");

    private Status(string code, string name) : base(code, name) { }
}

Extensions

// Collection extensions
collection.RemoveAll(x => x.IsObsolete);

// Decimal formatting
decimal value = 123.4500m;
string normalized = value.ToNormalizedString(); // "123.45"

// Enhanced null checks
if (str.IsNullOrEmptyOrWhiteSpace()) { }

Contributing

1. Fork the repository
2. Create a feature branch
3. Commit your changes
4. Push to the branch
5. Create a Pull Request

License

This project is licensed under the MIT License - see the LICENSE.md file for details.