From c0d2891d86a89373c414a9e83883d29d5fc2d20f Mon Sep 17 00:00:00 2001
From: amazing-username <kundeng94@gmail.com>
Date: Tue, 30 Apr 2019 01:49:43 +0000
Subject: [PATCH] Switched to the TagLib library for stripping metadata.
 Included TODO for updating a song's metadata for both the database and the
 tag of the MP3 file #36

---
 Controllers/Managers/SongManager.cs        |  5 +-
 Controllers/SongController.cs              | 16 ++---
 Controllers/SongDataController.cs          |  5 --
 Controllers/Utilities/MetadataRetriever.cs | 73 ++++++++++++++++++++++
 Models/SongResult.cs                       | 14 +++++
 5 files changed, 95 insertions(+), 18 deletions(-)
 create mode 100644 Controllers/Utilities/MetadataRetriever.cs
 create mode 100644 Models/SongResult.cs

diff --git a/Controllers/Managers/SongManager.cs b/Controllers/Managers/SongManager.cs
index 7767d15..607df75 100644
--- a/Controllers/Managers/SongManager.cs
+++ b/Controllers/Managers/SongManager.cs
@@ -218,7 +218,6 @@ namespace Icarus.Controllers.Managers
 		    _song.SongPath = filePath;
 
 		    Console.WriteLine($"Writing song to the directory: {filePath}");
-		    Console.WriteLine("Song successfully saved");
 		}
 	    }
 	    catch (Exception ex)
@@ -404,7 +403,9 @@ namespace Icarus.Controllers.Managers
 			Console.WriteLine("Retrieving song and storing it in memory");
 	        await song.CopyToAsync(fileStream);
 			Console.WriteLine($"Retrieving metadata of song from filepath {filePath}");
-		_song = RetrieveMetaData(filePath);
+			MetadataRetriever meta = new MetadataRetriever();
+			_song = meta.RetrieveMetaData(filePath);
+		//_song = RetrieveMetaData(filePath);
 			Console.WriteLine("Assigning song filename");
 		_song.Filename = song.FileName;
 			Console.WriteLine($"Song filename retrieved: {song.FileName}");
diff --git a/Controllers/SongController.cs b/Controllers/SongController.cs
index 96f754c..b806675 100644
--- a/Controllers/SongController.cs
+++ b/Controllers/SongController.cs
@@ -68,20 +68,14 @@ namespace Icarus.Controllers
 			return song;
 		}
 
-		[HttpPost]
-		public void Post([FromBody] Song song)
-		{
-			MusicStoreContext context = HttpContext
-										.RequestServices
-										.GetService(typeof(MusicStoreContext)) 
-										as MusicStoreContext;
-			
-			context.SaveSong(song);
-		}
 
         [HttpPut("{id}")]
-        public void Put(int id, [FromBody] Song song)
+        public IActionResult Put(int id, [FromBody] Song song)
         {
+			// TODO: Implement updating of song metadata
+			SongResult songResult = new SongResult();
+
+			return Ok(songResult);
         }
 
 		[HttpDelete("{id}")]
diff --git a/Controllers/SongDataController.cs b/Controllers/SongDataController.cs
index 336a35f..95f21c1 100644
--- a/Controllers/SongDataController.cs
+++ b/Controllers/SongDataController.cs
@@ -89,11 +89,6 @@ namespace Icarus.Controllers
 			}
 		}
 
-        [HttpPut("{id}")]
-        public void Put(int id, [FromBody] SongData song)
-        {
-        }
-
         [HttpDelete("{id}")]
 		[Authorize("delete:songs")]
         public void Delete(int id)
diff --git a/Controllers/Utilities/MetadataRetriever.cs b/Controllers/Utilities/MetadataRetriever.cs
new file mode 100644
index 0000000..4ce5b5e
--- /dev/null
+++ b/Controllers/Utilities/MetadataRetriever.cs
@@ -0,0 +1,73 @@
+using System;
+
+using TagLib;
+
+using Icarus.Models;
+
+namespace Icarus.Controllers.Utilities
+{
+	public class MetadataRetriever
+	{
+		#region Fields
+		private string _title;
+		private string _artist;
+		private string _album;
+		private string _genre;
+		private int _year;
+		private int _duration;
+		#endregion
+
+
+		#region Properties
+		#endregion
+
+
+		#region Constructors
+		#endregion
+
+
+		#region Methods
+		public Song RetrieveMetaData(string filePath)
+		{
+			Song song = new Song();
+
+			try
+			{
+				TagLib.File fileTag = TagLib.File.Create(filePath);
+				_title = fileTag.Tag.Title;
+				_artist = string.Join("", fileTag.Tag.Artists);
+				_album = fileTag.Tag.Album;
+				_genre = string.Join("", fileTag.Tag.Genres);
+				_year = (int)fileTag.Tag.Year;
+				_duration = (int)fileTag.Properties.Duration.TotalSeconds;
+
+				song.Title = _title;
+				song.Artist = _artist;
+				song.Album = _album;
+				song.Genre = _genre;
+				song.Year = _year;
+				song.Duration = _duration;
+			}
+			catch (Exception ex)
+			{
+				var msg = ex.Message;
+				Console.WriteLine("An error occurred in MetadataRetriever");
+				Console.WriteLine(msg);
+			}
+
+			return song;
+		}
+
+		private void PrintMetadata()
+		{
+			Console.WriteLine("\n\nMetadata of the song:");
+			Console.WriteLine($"Title: {_title}");
+			Console.WriteLine($"Artist: {_artist}");
+			Console.WriteLine($"Album: {_album}");
+			Console.WriteLine($"Genre: {_genre}");
+			Console.WriteLine($"Year: {_year}");
+			Console.WriteLine($"Duration: {_duration}\n\n");
+		}
+		#endregion
+	}
+}
diff --git a/Models/SongResult.cs b/Models/SongResult.cs
new file mode 100644
index 0000000..8918c0e
--- /dev/null
+++ b/Models/SongResult.cs
@@ -0,0 +1,14 @@
+using System;
+
+using Newtonsoft.Json;
+
+namespace Icarus.Models
+{
+	public class SongResult
+	{
+		[JsonProperty("message")]
+		public string Message { get; set; }
+		[JsonProperty("song_title")]
+		public string SongTitle { get; set; }
+	}
+}