Compression of songs implemented #14

Controllers/Utilities/SongCompression.cs

@@ -1,20 +1,28 @@
 using System;
 using System.IO;
-using System.IO.Compression;
 using System.Threading.Tasks;
 
-using SevenZip.Compression.LZMA;
+using Ionic.Zip;
+
+using Icarus.Models;
 
 namespace Icarus.Controllers.Utilities
 {
     public class SongCompression
     {
         #region Fields
+		string _compressedSongFilename;
+		string _tempDirectory;
         byte[] _uncompressedSong;
         #endregion
 
 
         #region Propterties
+		public string CompressedSongFilename
+		{
+			get => _compressedSongFilename;
+			set => _compressedSongFilename = value;
+		}
         #endregion
 
 
@@ -22,6 +30,10 @@ namespace Icarus.Controllers.Utilities
         public SongCompression()
         {
         }
+		public SongCompression(string tempDirectory)
+		{
+			_tempDirectory = tempDirectory;
+		}
         public SongCompression(byte[] uncompressedSong)
         {
             _uncompressedSong = uncompressedSong;
@@ -30,40 +42,40 @@ namespace Icarus.Controllers.Utilities
 
 
         #region Methods
+		public string RetrieveCompressesSongPath(Song songDetails)
+		{
+			string tmpZipFilePath = _tempDirectory + songDetails.Filename;
+
+			try
+			{
+				using (ZipFile zip = new ZipFile())
+				{
+					zip.AddFile(songDetails.SongPath);
+					zip.Save(tmpZipFilePath);
+				}
+				Console.WriteLine("Successfully compressed");
+			}
+			catch (Exception ex)
+			{
+				var exMsg = ex.Message;
+				Console.WriteLine("An error ocurred");
+				Console.WriteLine(exMsg);
+			}
+
+			if (songDetails.Filename.Contains(".mp3"))
+			{
+				_compressedSongFilename = StripMP3Extension(songDetails.Filename);
+			}
+
+			return tmpZipFilePath;
+		}
+
+		// Method not being used
         public byte[] CompressedSong(byte[] uncompressedSong)
         {
             byte[] compressedSong = null;
             try
             {
-				/**
-                MemoryStream output = new MemoryStream();
-                using (DeflateStream dstream = new DeflateStream(output, CompressionLevel.Optimal))
-                {
-                    dstream.Write(uncompressedSong, 0, uncompressedSong.Length);
-                    compressedSong = output.ToArray();
-                }
-				*/
-
-				// TODO: Implement song compression
-
-				FileStream sourceFile = File.ReadAllBytes(uncompressedSong);
-    			FileStream destinationFile = File.Create(path + ".gz");
-
-			    byte[] buffer = new byte[sourceFile.Length];
-    			sourceFile.Read(uncompressedSong, 0, uncompressedSong.Length);
-
-    			using (GZipStream output = new GZipStream(destinationFile,
-        			   CompressionMode.Compress))
-    			{
-       				 Console.WriteLine("Compressing {0} to {1}.", sourceFile.Name,
-            							destinationFile.Name, false);
-
-        			output.Write(buffer, 0, buffer.Length);
-    			}
-
-    			sourceFile.Close();
-    			destinationFile.Close();
-
 				Console.WriteLine("Song has been successfully compressed");
             }
             catch (Exception ex)
@@ -75,6 +87,22 @@ namespace Icarus.Controllers.Utilities
 
             return compressedSong;
         }
+
+
+		string StripMP3Extension(string filename)
+		{
+			Console.WriteLine($"Before: {filename}");
+			int filenameLength = filename.Length;
+			Console.WriteLine($"Filename length {filenameLength}");
+			var endIndex = filenameLength - 1;
+			var startIndex = endIndex - 3;
+			Console.WriteLine($"Starting index {startIndex} and ending index {endIndex}");
+			var stripped = filename.Remove(startIndex, 4);
+			stripped += ".zip";
+			Console.WriteLine($"After {stripped}");
+
+			return stripped;
+		}
         #endregion
     }
 }