Initial commit

2021-02-08 21:13:53 -06:00
commit 4d52e115b5
493 changed files with 31399 additions and 0 deletions
@@ -0,0 +1,43 @@
+using System;
+using System.IO;
+using System.Security.Cryptography;
+using System.Threading;
+using System.Threading.Tasks;
+using ErsatzTV.Core;
+using LanguageExt;
+using MediatR;
+
+namespace ErsatzTV.Application.Images.Commands
+{
+    public class SaveImageToDiskHandler : IRequestHandler<SaveImageToDisk, Either<BaseError, string>>
+    {
+        private static readonly SHA1CryptoServiceProvider Crypto;
+
+        static SaveImageToDiskHandler() => Crypto = new SHA1CryptoServiceProvider();
+
+        public async Task<Either<BaseError, string>> Handle(
+            SaveImageToDisk request,
+            CancellationToken cancellationToken)
+        {
+            try
+            {
+                byte[] hash = Crypto.ComputeHash(request.Buffer);
+                string hex = BitConverter.ToString(hash).Replace("-", string.Empty);
+
+                string fileName = Path.Combine(FileSystemLayout.ImageCacheFolder, hex);
+
+                if (!Directory.Exists(FileSystemLayout.ImageCacheFolder))
+                {
+                    Directory.CreateDirectory(FileSystemLayout.ImageCacheFolder);
+                }
+
+                await File.WriteAllBytesAsync(fileName, request.Buffer, cancellationToken);
+                return hex;
+            }
+            catch (Exception ex)
+            {
+                return BaseError.New(ex.Message);
+            }
+        }
+    }
+}