Переработанная версия ядра

BotPages.Core/Messaging/ButtonAttribute.cs

@@ -0,0 +1,98 @@
+using System.Reflection;
+
+namespace BotPages.Core.Messaging;
+
+/// <summary>
+/// Описание для кнопки.
+/// </summary>
+[AttributeUsage(AttributeTargets.Field)]
+public class ButtonAttribute : Attribute
+{
+    ///<inheritdoc/>
+    public ButtonAttribute(string label)
+    {
+        Label = label;
+    }
+
+    /// <summary>
+    /// Описание кнопки.
+    /// </summary>
+    public string Label { get; }
+
+    /// <summary>
+    /// Значение кнопки. Используется в InlineButton.
+    /// </summary>
+    public string? Value { get; }
+}
+
+public static class ButtonExtensions
+{
+    private static readonly Dictionary<Type, Dictionary<string, object>> _cacheName = new();
+
+    /// <summary>
+    /// Получить подпись кнопки.
+    /// </summary>
+    /// <typeparam name="T">Enum тип.</typeparam>
+    /// <param name="value">Значение enum.</param>
+    /// <returns></returns>
+    public static string GetButtonLabel<T>(this T value)
+        where T : Enum
+    {
+        var fieldName = value.ToString();
+        var type = value.GetType();
+        var field = type.GetField(fieldName, BindingFlags.Public | BindingFlags.Static);
+        return field?.GetCustomAttribute<ButtonAttribute>()?.Label ?? fieldName;
+    }
+
+    /// <summary>
+    /// Получить значение кнопки.
+    /// </summary>
+    /// <typeparam name="T">Enum тип.</typeparam>
+    /// <param name="value">Значение enum.</param>
+    /// <returns></returns>
+    public static string GetButtonValue<T>(this T value)
+        where T : Enum
+    {
+        var fieldName = value.ToString();
+        var type = value.GetType();
+        var field = type.GetField(fieldName, BindingFlags.Public | BindingFlags.Static);
+        return field?.GetCustomAttribute<ButtonAttribute>()?.Value ?? fieldName;
+    }
+
+    /// <summary>
+    /// Получить значение enum из подписи кнопки.
+    /// </summary>
+    /// <typeparam name="T"></typeparam>
+    /// <param name="value"></param>
+    /// <returns></returns>
+    public static T? FromButtonLabel<T>(string? value) where T : struct, Enum
+    {
+        if (value == null) return null;
+
+        var type = typeof(T);
+        if (!_cacheName.TryGetValue(type, out var map))
+        {
+            map = new Dictionary<string, object>();
+
+            var fields = type.GetFields(BindingFlags.Public | BindingFlags.Static);
+
+            foreach (var field in fields)
+            {
+                var fieldValue = field.GetValue(null)!;
+                var fieldName = field.Name;
+
+                var attr = field.GetCustomAttribute<ButtonAttribute>();
+
+                if (attr != null)
+                {
+                    fieldName = attr.Label;
+                }
+
+                map[fieldName] = fieldValue;
+            }
+
+        }
+
+        return map.TryGetValue(value, out var result) ? (T)result : null;
+    }
+}