# Module: Azaion.Common.Extensions.EnumExtensions

## Purpose
Static utility class for extracting `DescriptionAttribute` values from enum members and retrieving default enum values.

## Public Interface

| Method | Signature | Description |
|--------|-----------|-------------|
| `GetDescriptions<T>` | `static Dictionary<T, string> GetDescriptions<T>() where T : Enum` | Returns all enum values mapped to their `[Description]` text |
| `GetDescription` | `static string GetDescription(this Enum enumValue)` | Extension: gets the `[Description]` of a single enum value |
| `GetDefaultValue<TEnum>` | `static TEnum GetDefaultValue<TEnum>() where TEnum : struct` | Returns the `[DefaultValue]` attribute's value for an enum type |

## Internal Logic
- `GetDescriptions<T>` iterates all enum values via `Enum.GetValues`, using a private helper `GetEnumAttrib` to extract the `DescriptionAttribute` via reflection. Falls back to `.ToString()` when no attribute exists.
- `GetEnumAttrib<T, TAttrib>` fetches a custom attribute from an enum member's `FieldInfo`.

## Dependencies
- `System.ComponentModel.DescriptionAttribute`, `System.Reflection` (BCL only)

## Consumers
- `BusinessException` (static constructor calls `GetDescriptions<ExceptionEnum>()`)

## Data Models
None.

## Configuration
None.

## External Integrations
None.

## Security
None.

## Tests
None.