Working on migrating metadata over to c++

Controllers/Managers/SongManager.cs

@@ -235,6 +235,19 @@ namespace Icarus.Controllers.Managers
                 SongPath = song.SongPath
             };
         }
+        public static Song ConvertSngToSong(Sng song)
+        {
+            return new Song
+            {
+                Id = song.Id,
+                Title = song.Title,
+                Artist = song.Artist,
+                AlbumTitle = song.Album,
+                Genre = song.Genre,
+                Year = song.Year,
+                SongPath = song.SongPath
+            };
+        }
         
 
         private async Task<SongData> RetrieveSongFromFileSystem(Song details)
@@ -257,15 +270,26 @@ namespace Icarus.Controllers.Managers
                 await songFile.CopyToAsync(filestream);
             }
 
-            MetadataRetriever meta = new MetadataRetriever();
+            //MetadataRetriever meta = new MetadataRetriever();
-            song =  meta.RetrieveMetaData(filePath);
+            //song =  meta.RetrieveMetaData(filePath);
+            Console.WriteLine("try");
+            unsafe
+            {
+            Song *sng = new Sng();
+            MetadataRetriever.retrieve_metadata(ref sng, filePath);
+            Console.WriteLine("Hmmmm");
+            Console.WriteLine($"sng title {sng.Title}");
+            song = ConvertSngToSong(sng);
+            }
 
             _logger.Info("Assigning song filename");
             song.Filename = songFile.FileName;
 
+            Console.WriteLine("what?");
             return song;
         }
 
+        /**
         private async Task SaveSongToFileSystemTemp(IFormFile song, string filePath)
         {
             using (var fileStream = new FileStream(filePath, FileMode.Create))
@@ -283,6 +307,7 @@ namespace Icarus.Controllers.Managers
                 Console.WriteLine($"Song filename retrieved: {song.FileName}");
             }
         }
+        */
 
         private bool SongRecordChanged(Song currentSong, Song songUpdates)
         {
@@ -761,20 +786,24 @@ namespace Icarus.Controllers.Managers
             if (year.SongCount <= 1)
                 yearStore.DeleteYear(year);
         }
-
         #endregion    
 
 
         #region Structs
-        [StructLayout(LayoutKind.Sequential)]
+        [StructLayout(LayoutKind.Sequential, CharSet = CharSet.Ansi)]
         public struct Sng
         {
             public int Id;
+            [MarshalAs(UnmanagedType.ByValTStr, SizeConst = 50)]
             public string Title;
+            [MarshalAs(UnmanagedType.ByValTStr, SizeConst = 50)]
             public string Artist;
+            [MarshalAs(UnmanagedType.ByValTStr, SizeConst = 50)]
             public string Album;
+            [MarshalAs(UnmanagedType.ByValTStr, SizeConst = 50)]
             public string Genre;
             public int Year;
+            [MarshalAs(UnmanagedType.ByValTStr, SizeConst = 50)]
             public string SongPath;
         };
         #endregion

Controllers/Utilities/MetadataRetriever.cs

@@ -103,7 +103,8 @@ namespace Icarus.Controllers.Utilities
         }
 
         [DllImport("libicarus.so")]
-        public static extern Icarus.Controllers.Managers.SongManager.Sng retrieve_metadata(string file_path);
+        //public static extern Icarus.Controllers.Managers.SongManager.Sng retrieve_metadata(string file_path);
+        public static extern void retrieve_metadata(ref Icarus.Controllers.Managers.SongManager.Sng sng, string file_path);
 
         public byte[] RetrieveCoverArtBytes(Song song)
         {

Libs/include/metadata_retriever.h

@@ -2,4 +2,4 @@
 
 #include "models.h"
 
-Song fetch_metadata(const char*);
+void fetch_metadata(Song&, const char*);

Libs/src/metadata_retriever.cpp

@@ -1,26 +1,79 @@
 #include <iostream>
 #include <string>
+#include <taglib/tag.h>
+#include <taglib/fileref.h>
+#include <string.h>
 
 #include "metadata_retriever.h"
 
-Song fetch_metadata(const char *song_path)
+void fetch_metadata(Song &sng, const char *song_path)
 {
-    Song sng;
+    //Song sng;
-    std::string title = "ddd";
+    std::cout<<"extracting metadata from: "<<std::endl;
-    sng.Title = (char*)title.c_str();
+    std::cout<<song_path<<std::endl;
-    sng.SongPath = (char*)song_path;
 
-    return sng;
+    TagLib::FileRef file(song_path);
+    //std::cout<<"0"<<std::endl;
+    sng.Title = (char*)file.tag()->title().toCString();
+    //sng->Title = (char*)file.tag()->title().toCString();
+    std::cout<<"Title: "<<sng.Title<<std::endl;
+    //std::cout<<"Title: "<<sng->Title<<std::endl;
+    //std::cout<<"0"<<std::endl;
+    sng.Artist = (char*)file.tag()->artist().toCString();
+    //sng->Artist = (char*)file.tag()->artist().toCString();
+    //std::cout<<"0"<<std::endl;
+    sng.Album = (char*)file.tag()->album().toCString();
+    //sng->Album = (char*)file.tag()->album().toCString();
+    //std::cout<<"0"<<std::endl;
+    sng.Genre = (char*)file.tag()->genre().toCString();
+    //sng->Genre = (char*)file.tag()->genre().toCString();
+    //std::cout<<"0"<<std::endl;
+    sng.Year = file.tag()->year();
+    //sng->Year = file.tag()->year();
+    //std::cout<<"0"<<std::endl;
+    sng.SongPath = (char*)song_path;
+    //sng->SongPath = (char*)song_path;
+    //std::cout<<"0"<<std::endl;
 }
 
 extern "C"
 {
 
-Song retrieve_metadata(const char*);
+void retrieve_metadata(Song*, char*);
 
-Song retrieve_metadata(const char* song_path)
+void retrieve_metadata(Song *song, char* song_path)
 {
-    return fetch_metadata(song_path);
+    std::cout<<"extern C"<<std::endl;
+    //Song sng;
+    Song *sng;
+    //fetch_metadata(sn,song_path);
+    //
+    //
+    TagLib::FileRef file(song_path);
+    //std::cout<<"0"<<std::endl;
+    //sng.Title = (char*)file.tag()->title().toCString();
+    sng->Title = (char*)file.tag()->title().toCString();
+    //strcpy(sng->Title, file.tag()->title().toCString());
+    //std::cout<<"Title: "<<sng.Title<<std::endl;
+    std::cout<<"Title: "<<sng->Title<<std::endl;
+    //std::cout<<"0"<<std::endl;
+    //sng.Artist = (char*)file.tag()->artist().toCString();
+    sng->Artist = (char*)file.tag()->artist().toCString();
+    //std::cout<<"0"<<std::endl;
+    //sng.Album = (char*)file.tag()->album().toCString();
+    sng->Album = (char*)file.tag()->album().toCString();
+    //std::cout<<"0"<<std::endl;
+    //sng.Genre = (char*)file.tag()->genre().toCString();
+    sng->Genre = (char*)file.tag()->genre().toCString();
+    //std::cout<<"0"<<std::endl;
+    //sng.Year = file.tag()->year();
+    sng->Year = file.tag()->year();
+    //std::cout<<"0"<<std::endl;
+    //sng.SongPath = (char*)song_path;
+    sng->SongPath = (char*)song_path;
+    //std::cout<<"res"<<std::endl<<sn.Title<<std::endl;
+    //*song = sn;
+    std::cout<<"done"<<std::endl;
 }
 
 }