43 lines
1.5 KiB
C#
43 lines
1.5 KiB
C#
using EnvelopeGenerator.Application.Common.Extensions;
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using Microsoft.Extensions.Caching.Memory;
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namespace EnvelopeGenerator.Application.Common.Extensions;
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/// <summary>
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///
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/// </summary>
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public static class MemoryCacheExtensions
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{
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private static readonly Guid BaseId = Guid.NewGuid();
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/// <summary>
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///
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/// </summary>
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/// <typeparam name="TEnum"></typeparam>
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/// <param name="memoryCache"></param>
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/// <param name="key"></param>
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/// <param name="ignores"></param>
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/// <returns></returns>
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/// <exception cref="InvalidOperationException"></exception>
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public static IDictionary<string, int> GetEnumAsDictionary<TEnum>(this IMemoryCache memoryCache, string key = "", params object[] ignores)
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where TEnum : Enum
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=> memoryCache.GetOrCreate(BaseId + typeof(TEnum).FullName + key, _ =>
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{
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var mergedIgnores = new List<TEnum>();
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foreach (var ignore in ignores)
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{
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if (ignore is IEnumerable<TEnum> ignoreList)
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mergedIgnores.AddRange(ignoreList);
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else if (ignore is TEnum ignoreVal)
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mergedIgnores.Add(ignoreVal);
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}
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return Enum.GetValues(typeof(TEnum))
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.Cast<TEnum>()
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.Where(e => !mergedIgnores.Contains(e))
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.ToDictionary(e => e.ToString(), e => Convert.ToInt32(e));
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})
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?? throw new InvalidOperationException($"Failed to cache or retrieve enum dictionary for type '{typeof(TEnum).FullName}'.");
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}
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