Chaging the folders and creating a separeted class for messages

Music/Song.py

@@ -0,0 +1,75 @@
+from Music.Interfaces import ISong, IPlaylist
+
+
+class Song(ISong):
+    """Store the usefull information about a Song"""
+
+    def __init__(self, identifier: str, playlist: IPlaylist, requester: str) -> None:
+        """Create a song with only the URL to the youtube song"""
+        self.__identifier = identifier
+        self.__info = {'requester': requester}
+        self.__problematic = False
+        self.__playlist: IPlaylist = playlist
+
+    def finish_down(self, info: dict) -> None:
+        """Get and store the full information of the song"""
+        self.__usefull_keys = ['duration',
+                               'title', 'webpage_url',
+                               'channel', 'id', 'uploader',
+                               'thumbnail', 'original_url']
+        self.__required_keys = ['url']
+
+        for key in self.__required_keys:
+            if key in info:
+                self.__info[key] = info[key]
+            else:
+                print(f'DEVELOPER NOTE -> {key} not found in info of music: {self.identifier}')
+                self.destroy()
+
+        for key in self.__usefull_keys:
+            if key in info:
+                self.__info[key] = info[key]
+            else:
+                print(f'DEVELOPER NOTE -> {key} not found in info of music: {self.identifier}')
+
+    @property
+    def source(self) -> str:
+        """Return the Song Source URL to play"""
+        if 'url' in self.__info.keys():
+            return self.__info['url']
+        else:
+            return None
+
+    @property
+    def title(self) -> str:
+        """Return the Song Title"""
+        if 'title' in self.__info.keys():
+            return self.__info['title']
+        else:
+            return None
+
+    @property
+    def duration(self) -> str:
+        """Return the Song Title"""
+        if 'duration' in self.__info.keys():
+            return self.__info['duration']
+        else:
+            return 0.0
+
+    @property
+    def identifier(self) -> str:
+        return self.__identifier
+
+    @property
+    def problematic(self) -> bool:
+        return self.__problematic
+
+    def destroy(self) -> None:
+        """Mark this song with problems and removed from the playlist due to any type of error"""
+        print(f'DEVELOPER NOTE -> Music self destroying {self.__identifier}')
+        self.__problematic = True
+        self.__playlist.destroy_song(self)
+
+    @property
+    def info(self):
+        return self.__info