app/config.py

@@ -10,6 +10,7 @@ class Config(object):
     CART_DIRECTORY = "/home/kae/radio/CartTracks"
     CARTS_COUNT = 10
     CARTS_HIDE = True
+    COLON_IN_PATH_FIX = True
     COLOUR_BITRATE_LOW = "#ffcdd2"
     COLOUR_BITRATE_MEDIUM = "#ffeb6f"
     COLOUR_BITRATE_OK = "#dcedc8"
@@ -49,7 +50,6 @@ class Config(object):
     ERRORS_TO = ['kae@midnighthax.com']
     FADE_STEPS = 20
     FADE_TIME = 3000
-    HIDE_AFTER_PLAYING_OFFSET = 5000
     INFO_TAB_TITLE_LENGTH = 15
     LAST_PLAYED_TODAY_STRING = "Today"
     LOG_LEVEL_STDERR = logging.ERROR
@@ -67,7 +67,6 @@ class Config(object):
     MINIMUM_ROW_HEIGHT = 30
     MYSQL_CONNECT = os.environ.get('MYSQL_CONNECT') or "mysql+mysqldb://musicmuster:musicmuster@localhost/musicmuster_v2"  # noqa E501
     NOTE_TIME_FORMAT = "%H:%M:%S"
-    PLAY_SETTLE = 500000
     ROOT = os.environ.get('ROOT') or "/home/kae/music"
     IMPORT_DESTINATION = os.path.join(ROOT, "Singles")
     SCROLL_TOP_MARGIN = 3

app/helpers.py

@@ -55,15 +55,15 @@ def fade_point(
     return int(trim_ms)
 
 
-def file_is_unreadable(path: Optional[str]) -> bool:
+def file_is_readable(path: Optional[str]) -> bool:
     """
     Returns True if passed path is readable, else False
     """
 
     if not path:
-        return True
+        return False
 
-    return not os.access(path, os.R_OK)
+    return os.access(path, os.R_OK)
 
 
 def get_audio_segment(path: str) -> Optional[AudioSegment]:

app/infotabs.py

@@ -20,7 +20,6 @@ class InfoTabs(QTabWidget):
         # Dictionary to record when tabs were last updated (so we can
         # re-use the oldest one later)
         self.last_update: Dict[QWebEngineView, datetime] = {}
-        self.tabtitles: Dict[int, str] = {}
 
     def open_in_songfacts(self, title):
         """Search Songfacts for title"""
@@ -40,19 +39,10 @@ class InfoTabs(QTabWidget):
 
     def open_tab(self, url: str, title: str) -> None:
         """
-        Open passed URL. If URL currently displayed, switch to that tab.
-        Create new tab if we're below the maximum
+        Open passed URL. Create new tab if we're below the maximum
         number otherwise reuse oldest content tab.
         """
 
-        if url in self.tabtitles.values():
-            self.setCurrentIndex(
-                list(self.tabtitles.keys())[
-                    list(self.tabtitles.values()).index(url)
-                ]
-            )
-            return
-
         short_title = title[:Config.INFO_TAB_TITLE_LENGTH]
 
         if self.count() < Config.MAX_INFO_TABS:
@@ -71,7 +61,6 @@ class InfoTabs(QTabWidget):
 
         widget.setUrl(QUrl(url))
         self.last_update[widget] = datetime.now()
-        self.tabtitles[tab_index] = url
 
         # Show newly updated tab
         self.setCurrentIndex(tab_index)

app/log.py

@@ -75,8 +75,7 @@ def log_uncaught_exceptions(_ex_cls, ex, tb):
     print("\033[1;31;47m")
     logging.critical(''.join(traceback.format_tb(tb)))
     print("\033[1;37;40m")
-    print(stackprinter.format(ex, show_vals="all", add_summary=True,
-                              style="darkbg"))
+    print(stackprinter.format(ex, style="darkbg2", add_summary=True))
     if os.environ["MM_ENV"] == "PRODUCTION":
         msg = stackprinter.format(ex)
         send_mail(Config.ERRORS_TO, Config.ERRORS_FROM,

app/models.py

@@ -98,13 +98,13 @@ class NoteColours(Base):
         )
 
     @staticmethod
-    def get_colour(session: scoped_session, text: str) -> Optional[str]:
+    def get_colour(session: scoped_session, text: str) -> str:
         """
         Parse text and return colour string if matched, else empty string
         """
 
         if not text:
-            return None
+            return ""
 
         for rec in session.execute(
                 select(NoteColours)
@@ -126,7 +126,7 @@ class NoteColours(Base):
                     if rec.substring.lower() in text.lower():
                         return rec.colour
 
-        return None
+        return ""
 
 
 class Playdates(Base):
@@ -464,32 +464,26 @@ class PlaylistRows(Base):
         session.commit()
 
     @classmethod
-    def get_from_id_list(cls, session: scoped_session, playlist_id: int,
-                         plr_ids: List[int]) -> List["PlaylistRows"]:
+    def get_section_header_rows(cls, session: scoped_session,
+                                playlist_id: int) -> List["PlaylistRows"]:
         """
-        Take a list of PlaylistRows ids and return a list of corresponding
-        PlaylistRows objects
+        Return a list of PlaylistRows that are section headers for this
+        playlist
         """
 
         plrs = session.execute(
             select(cls)
             .where(
                 cls.playlist_id == playlist_id,
-                cls.id.in_(plr_ids)
+                cls.track_id.is_(None),
+                (
+                    cls.note.endswith("-") |
+                    cls.note.endswith("+")
+                )
             ).order_by(cls.row_number)).scalars().all()
 
         return plrs
 
-    @staticmethod
-    def get_last_used_row(session: scoped_session,
-                          playlist_id: int) -> Optional[int]:
-        """Return the last used row for playlist, or None if no rows"""
-
-        return session.execute(
-            select(func.max(PlaylistRows.row_number))
-            .where(PlaylistRows.playlist_id == playlist_id)
-        ).scalar_one()
-
     @staticmethod
     def get_track_plr(session: scoped_session, track_id: int,
                       playlist_id: int) -> Optional["PlaylistRows"]:
@@ -504,6 +498,16 @@ class PlaylistRows(Base):
             .limit(1)
         ).first()
 
+    @staticmethod
+    def get_last_used_row(session: scoped_session,
+                          playlist_id: int) -> Optional[int]:
+        """Return the last used row for playlist, or None if no rows"""
+
+        return session.execute(
+            select(func.max(PlaylistRows.row_number))
+            .where(PlaylistRows.playlist_id == playlist_id)
+        ).scalar_one()
+
     @classmethod
     def get_played_rows(cls, session: scoped_session,
                         playlist_id: int) -> List["PlaylistRows"]:
@@ -568,6 +572,27 @@ class PlaylistRows(Base):
 
         return plrs
 
+    @staticmethod
+    def indexed_by_id(session: scoped_session,
+                      plr_ids: Union[Iterable[int], ValuesView]) -> dict:
+        """
+        Return a dictionary of playlist_rows indexed by their plr id from
+        the passed plr_id list.
+        """
+
+        plrs = session.execute(
+            select(PlaylistRows)
+            .where(
+                PlaylistRows.id.in_(plr_ids)
+            )
+        ).scalars().all()
+
+        result = {}
+        for plr in plrs:
+            result[plr.id] = plr
+
+        return result
+
     @staticmethod
     def move_rows_down(session: scoped_session, playlist_id: int,
                        starting_row: int, move_by: int) -> None:

app/music.py

@@ -4,7 +4,7 @@ import vlc                          # type: ignore
 #
 from config import Config
 from datetime import datetime
-from helpers import file_is_unreadable
+from helpers import file_is_readable
 from typing import Optional
 from time import sleep
 
@@ -101,14 +101,17 @@ class Music:
         Log and return if path not found.
         """
 
-        if file_is_unreadable(path):
+        if not file_is_readable(path):
             log.error(f"play({path}): path not readable")
             return None
 
         status = -1
 
-        media = self.VLC.media_new_path(path)
-        self.player = media.player_new_from_media()
+        if Config.COLON_IN_PATH_FIX:
+            media = self.VLC.media_new_path(path)
+            self.player = media.player_new_from_media()
+        else:
+            self.player = self.VLC.media_player_new(path)
         if self.player:
             self.player.audio_set_volume(self.max_volume)
             status = self.player.play()

app/musicmuster.py

@@ -257,6 +257,7 @@ class MusicMusterSignals(QObject):
         emit-a-signal-from-another-class-to-main-class
     """
 
+    save_playlist_signal = pyqtSignal()
     update_row_note_signal = pyqtSignal(int)
 
 
@@ -314,7 +315,7 @@ class Window(QMainWindow, Ui_MainWindow):
         btn.setEnabled(False)
         btn.pgb.setVisible(False)
         if cart.path:
-            if not helpers.file_is_unreadable(cart.path):
+            if helpers.file_is_readable(cart.path):
                 colour = Config.COLOUR_CART_READY
                 btn.path = cart.path
                 btn.player = self.music.VLC.media_player_new(cart.path)
@@ -339,7 +340,7 @@ class Window(QMainWindow, Ui_MainWindow):
         if not isinstance(btn, CartButton):
             return
 
-        if not helpers.file_is_unreadable(btn.path):
+        if helpers.file_is_readable(btn.path):
             # Don't allow clicks while we're playing
             btn.setEnabled(False)
             if not btn.player:
@@ -377,7 +378,7 @@ class Window(QMainWindow, Ui_MainWindow):
                 if not path:
                     QMessageBox.warning(self, "Error", "Filename required")
                     return
-                if cart.path and not helpers.file_is_unreadable(cart.path):
+                if cart.path and helpers.file_is_readable(cart.path):
                     tags = helpers.get_tags(cart.path)
                     cart.duration = tags['duration']
 
@@ -530,7 +531,7 @@ class Window(QMainWindow, Ui_MainWindow):
 
         # Attempt to close next track playlist
         if self.tabPlaylist.widget(tab_index) == self.next_track.playlist_tab:
-            self.next_track.playlist_tab.clear_next()
+            self.next_track.playlist_tab.mark_unnext()
 
         # Record playlist as closed and update remaining playlist tabs
         with Session() as session:
@@ -726,9 +727,11 @@ class Window(QMainWindow, Ui_MainWindow):
 
         Actions required:
          - Set flag to say we're not playing a track
+         - Reset current track
          - Tell playlist_tab track has finished
-         - Reset PlaylistTrack objects
+         - Reset current playlist_tab
          - Reset clocks
+         - Reset end time
          - Update headers
          - Enable controls
         """
@@ -737,7 +740,7 @@ class Window(QMainWindow, Ui_MainWindow):
         # doesn't see player=None and kick off end-of-track actions
         self.playing = False
 
-        # Tell playlist_tab track has finished
+        # Remove currently playing track colour
         if self.current_track.playlist_tab:
             self.current_track.playlist_tab.play_ended()
 
@@ -866,8 +869,11 @@ class Window(QMainWindow, Ui_MainWindow):
             self.hide_played_tracks = True
             self.btnHidePlayed.setText("Show played")
 
-        # Update displayed playlist
-        self.visible_playlist_tab().hide_or_show_played_tracks()
+        # Update all displayed playlists
+        with Session() as session:
+            for i in range(self.tabPlaylist.count()):
+                self.tabPlaylist.widget(i).hide_played_tracks(
+                    self.hide_played_tracks)
 
     def import_track(self) -> None:
         """Import track file"""
@@ -1266,7 +1272,7 @@ class Window(QMainWindow, Ui_MainWindow):
                 self.current_track.playlist_tab != self.visible_playlist_tab()
                 and self.previous_track.plr_id
             ):
-                self.previous_track.playlist_tab.clear_next()
+                self.previous_track.playlist_tab.reset_next()
 
             # Update headers
             self.update_headers()
@@ -1512,9 +1518,9 @@ class Window(QMainWindow, Ui_MainWindow):
             # May also be called when last tab is closed
             pass
 
-    def this_is_the_next_playlist_row(
-        self, session: scoped_session, plr: PlaylistRows,
-            next_track_playlist_tab: PlaylistTab) -> None:
+    def this_is_the_next_playlist_row(self, session: scoped_session,
+                                      plr: PlaylistRows,
+                                      next_track_playlist_tab: PlaylistTab) -> None:
         """
         This is notification from a playlist tab that it holds the next
         playlist row to be played.
@@ -1546,7 +1552,7 @@ class Window(QMainWindow, Ui_MainWindow):
 
             # Discard now-incorrect next_track PlaylistTrack and tell
             # playlist_tab too
-            self.next_track.playlist_tab.clear_next()
+            self.next_track.playlist_tab.reset_next()
             self.clear_next()
 
         # Populate self.next_track
@@ -1607,14 +1613,7 @@ class Window(QMainWindow, Ui_MainWindow):
             return
 
         # If track is playing, update track clocks time and colours
-        # There is a discrete time between starting playing a track and
-        # player.is_playing() returning True, so assume playing if less
-        # than Config.PLAY_SETTLE microseconds have passed since
-        # starting play.
-        if self.music.player and self.current_track.start_time and (
-                self.music.player.is_playing() or
-                (datetime.now() - self.current_track.start_time)
-                < timedelta(microseconds=Config.PLAY_SETTLE)):
+        if self.music.player and self.music.player.is_playing():
             playtime = self.music.get_playtime()
             time_to_fade = (self.current_track.fade_at - playtime)
             time_to_silence = (