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KretaWeb/Areas/Nyomtatvanyok/Controllers/BaseNyomtatvanyokController.cs

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+using System.IO;
+using System.Web.Mvc;
+using ICSharpCode.SharpZipLib.Zip;
+using Kreta.Enums.ManualEnums;
+
+namespace Kreta.Web.Areas.Nyomtatvanyok.Controllers
+{
+    public abstract class BaseNyomtatvanyokController : Controller
+    {
+        protected void AddZipEntry(ZipOutputStream zipOutput, Stream fileContent, string nyomtatvanyNeve, int? formatumId = null)
+        {
+            var buffer = new byte[Constants.General.BufferSize];
+            var entry = new ZipEntry(formatumId.HasValue ? $"{nyomtatvanyNeve}.{GetNyomtatvanyFileFormat(formatumId.Value)}" : nyomtatvanyNeve);
+            zipOutput.PutNextEntry(entry);
+
+            int sourceBytes;
+            do
+            {
+                sourceBytes = fileContent.Read(buffer, 0, buffer.Length);
+                zipOutput.Write(buffer, 0, sourceBytes);
+            } while (sourceBytes > 0);
+        }
+
+        protected string GetNyomtatvanyFileFormat(int formatumId)
+        {
+            switch (formatumId)
+            {
+                case (int)NyomtatvanyFormatumEnum.Word:
+                    return Constants.ImportExport.FileFormatWord;
+                case (int)NyomtatvanyFormatumEnum.PDF:
+                    return Constants.ImportExport.FileFormatPdf;
+                case (int)NyomtatvanyFormatumEnum.Excel:
+                    return Constants.ImportExport.FileFormatXlsx;
+                default:
+                    return Constants.ImportExport.FileFormatPdf;
+            }
+        }
+
+    }
+}