namespace AssetRipper.VersionUtilities;

/// <summary>
/// An enumeration representing the letter in a Unity Version string
/// </summary>
public enum UnityVersionType : byte
{
	/// <summary>
	/// a
	/// </summary>
	Alpha = 0,
	/// <summary>
	/// b
	/// </summary>
	Beta,
	/// <summary>
	/// c
	/// </summary>
	China,
	/// <summary>
	/// f
	/// </summary>
	Final,
	/// <summary>
	/// p
	/// </summary>
	Patch,
	/// <summary>
	/// x
	/// </summary>
	Experimental,

	/// <summary>
	/// The minimum valid value for this enumeration
	/// </summary>
	MinValue = Alpha,
	/// <summary>
	/// The maximum valid value for this enumeration
	/// </summary>
	MaxValue = Experimental,
}

/// <summary>
/// Extension methods for <see cref="UnityVersionType"/>
/// </summary>
public static class UnityVersionTypeExtentions
{
	/// <summary>
	/// Convert to the relevant character
	/// </summary>
	/// <param name="type">A Unity version type</param>
	/// <returns>The character this value represents</returns>
	/// <exception cref="ArgumentOutOfRangeException">The type is not a valid value</exception>
	public static char ToCharacter(this UnityVersionType type)
	{
		return type switch
		{
			UnityVersionType.Alpha => 'a',
			UnityVersionType.Beta => 'b',
			UnityVersionType.China => 'c',
			UnityVersionType.Final => 'f',
			UnityVersionType.Patch => 'p',
			UnityVersionType.Experimental => 'x',
			_ => 'u',//unknown
		};
	}
}