Partially implemented updating song metadata. Need to make it more dynamic, meaning only update attributes that have values sent with the request. #36

Controllers/SongController.cs

@@ -9,15 +9,16 @@ using Microsoft.AspNetCore.Mvc;
 using Microsoft.Extensions.Configuration;
 
 using Icarus.Controllers.Managers;
+using Icarus.Controllers.Utilities;
 using Icarus.Models;
 using Icarus.Models.Context;
 
 namespace Icarus.Controllers
 {
-    [Route("api/song")]
-    [ApiController]
-    public class SongController : ControllerBase
-    {
+	[Route("api/song")]
+	[ApiController]
+    	public class SongController : ControllerBase
+    	{
 		#region Fields
 		private IConfiguration _config;
 		private MusicStoreContext _context;
@@ -38,10 +39,10 @@ namespace Icarus.Controllers
 		#endregion
 
 
-        [HttpGet]
+        	[HttpGet]
 		[Authorize("read:song_details")]
-        public ActionResult<IEnumerable<Song>> Get()
-        {
+        	public ActionResult<IEnumerable<Song>> Get()
+        	{
 			List<Song> songs = new List<Song>();
 			Console.WriteLine("Attemtping to retrieve songs");
 			
@@ -53,7 +54,7 @@ namespace Icarus.Controllers
 			songs = context.GetAllSongs();
 
 			return songs;
-        }
+        	}
 
 		[HttpGet("{id}")]
 		public ActionResult<Song> Get(int id)
@@ -69,14 +70,25 @@ namespace Icarus.Controllers
 		}
 
 
-        [HttpPut("{id}")]
-        public IActionResult Put(int id, [FromBody] Song song)
-        {
+        	[HttpPut("{id}")]
+		public IActionResult Put(int id, [FromBody] Song song)
+        	{
 			// TODO: Implement updating of song metadata
+			MusicStoreContext context = HttpContext.RequestServices
+				.GetService(typeof(MusicStoreContext)) as MusicStoreContext;
+			Console.WriteLine("Retrieving filepath of song");
+			var songPath = context.GetSong(id).SongPath;
+			song.SongPath = songPath;
+
+			MetadataRetriever updateMetadata = new MetadataRetriever();
+			updateMetadata.UpdateMetadata(song);
+
+			context.UpdateSong(song);
+
 			SongResult songResult = new SongResult();
 
 			return Ok(songResult);
-        }
+        	}
 
 		[HttpDelete("{id}")]
 		public void Delete(int id)

Controllers/Utilities/MetadataRetriever.cs

@@ -58,6 +58,25 @@ namespace Icarus.Controllers.Utilities
 			return song;
 		}
 
+		public void UpdateMetadata(Song song)
+		{
+			try
+			{
+				Console.WriteLine("Updating song metadata"); 
+				var filePath = song.SongPath;
+				TagLib.File fileTag = TagLib.File.Create(filePath);
+				fileTag.Tag.Title = song.Title;
+				fileTag.Tag.Genres = new []{song.Genre};
+				fileTag.Save();
+				Console.WriteLine("Song metadata updated");
+
+			}
+			catch (Exception ex)
+			{
+				var msg = ex.Message;
+			}
+		}
+
 		private void PrintMetadata()
 		{
 			Console.WriteLine("\n\nMetadata of the song:");

Models/Context/MusicStoreContext.cs

@@ -5,30 +5,30 @@ using MySql.Data.MySqlClient;
         
 namespace Icarus.Models.Context    
 {    
-    public class MusicStoreContext    
-    {    
-        public string ConnectionString { get; set; }    
+	public class MusicStoreContext    
+    	{    
+        	public string ConnectionString { get; set; }    
     
-        public MusicStoreContext(string connectionString)    
-        {    
-            this.ConnectionString = connectionString;    
-        }    
+        	public MusicStoreContext(string connectionString)    
+        	{    
+            		this.ConnectionString = connectionString;    
+        	}    
 
 
 		public void SaveSong(Song song)
 		{
-	    	try
-	    	{
-	     	   using (MySqlConnection conn = GetConnection())
+	    		try
+	    		{
+	     	   		using (MySqlConnection conn = GetConnection())
 				{
-		    		conn.Open();
-		    		string query = "INSERT INTO Songs(Title, Album, Artist," +
+		    			conn.Open();
+		    			string query = "INSERT INTO Songs(Title, Album, Artist," +
 						" Year, Genre, Duration, Filename, SongPath) " + 
 						"VALUES(@Title, @Album, @Artist, @Year, @Genre, " +
 				   		"@Duration, @Filename, @SongPath)";
-		    		using (MySqlCommand cmd = new MySqlCommand(query, conn))
-		    		{
-		        		cmd.Parameters.AddWithValue("@Title", song.Title);
+		    			using (MySqlCommand cmd = new MySqlCommand(query, conn))
+		    			{
+		        			cmd.Parameters.AddWithValue("@Title", song.Title);
 						cmd.Parameters.AddWithValue("@Album", song.Album);
 						cmd.Parameters.AddWithValue("@Artist", song.Artist);
 						cmd.Parameters.AddWithValue("@Year", song.Year);
@@ -38,14 +38,47 @@ namespace Icarus.Models.Context
 						cmd.Parameters.AddWithValue("@SongPath", song.SongPath);
 
 						cmd.ExecuteNonQuery();
-		    		}
+		    			}
 				}
-	    	}
-	    	catch(Exception ex)
-	    	{
-	        	var exMsg = ex.Message;
+	    		}
+	    		catch(Exception ex)
+	    		{
+	        		var exMsg = ex.Message;
 				Console.WriteLine($"An error occurred:\n{exMsg}");
-	    	}
+	    		}
+		}
+		public void UpdateSong(Song song)
+		{
+			try
+			{
+				using (MySqlConnection conn = GetConnection())
+				{
+					conn.Open();
+
+		    			string query = "UPDATE Songs SET Title=@Title, Album=@Album, " +
+						"Artist=@Artist, Year=@Year, Genre=@Genre, " +
+				   		"Duration=@Duration, Filename=@Filename, SongPath=@SongPath";
+					using (MySqlCommand cmd = new MySqlCommand(query, conn))
+					{
+		        			cmd.Parameters.AddWithValue("@Title", song.Title);
+						cmd.Parameters.AddWithValue("@Album", song.Album);
+						cmd.Parameters.AddWithValue("@Artist", song.Artist);
+						cmd.Parameters.AddWithValue("@Year", song.Year);
+						cmd.Parameters.AddWithValue("@Genre", song.Genre);
+						cmd.Parameters.AddWithValue("@Duration", song.Duration);
+						cmd.Parameters.AddWithValue("@Filename", song.Filename);
+						cmd.Parameters.AddWithValue("@SongPath", song.SongPath);
+
+						cmd.ExecuteNonQuery();
+					}
+				}
+			}
+			catch (Exception ex)
+			{
+				var msg = ex.Message;
+				Console.WriteLine("An error occurred in MusicStoreContext:");
+				Console.WriteLine(msg);
+			}
 		}
 		public void DeleteSong(int id)
 		{