start: rewrite the database layer using a freaking ORM

+ start ditching in-mem stores
+ move main db table to a new name
+ experiments!

app/db/__init__.py

@@ -0,0 +1,232 @@
+import json
+from pprint import pprint
+from typing import Any, Optional
+
+from sqlalchemy import (
+    JSON,
+    Boolean,
+    Integer,
+    Row,
+    String,
+    Tuple,
+    create_engine,
+    insert,
+    select,
+)
+from sqlalchemy.orm import (
+    Mapped,
+    mapped_column,
+    DeclarativeBase,
+    MappedAsDataclass,
+    sessionmaker,
+)
+
+from app.models import Track as TrackModel
+from app.models import Album as AlbumModel
+from app.utils.remove_duplicates import remove_duplicates
+
+
+fullpath = "/home/cwilvx/temp/swingmusic/swing.db"
+engine = create_engine(f"sqlite+pysqlite:///{fullpath}", echo=False)
+
+
+def todict(track: Any):
+    return track._asdict()
+
+
+def todicts(tracks: list[Any]):
+    return [todict(track) for track in tracks]
+
+
+class DbManager:
+    def __init__(self):
+        self.engine = create_engine(f"sqlite+pysqlite:///{fullpath}", echo=True)
+        self.conn = self.engine.connect()
+
+    def __enter__(self):
+        return self.conn.execution_options(preserve_rowcount=True)
+
+    def __exit__(self, exc_type, exc_val, exc_tb):
+        self.conn.commit()
+        self.conn.close()
+
+
+class Base(MappedAsDataclass, DeclarativeBase):
+    @classmethod
+    def insert_many(cls, items: list[dict[str, Any]]):
+        """
+        Inserts multiple items into the database.
+        """
+        with DbManager() as conn:
+            conn.execute(insert(cls).values(items))
+
+    @classmethod
+    def insert_one(cls, item: dict[str, Any]):
+        """
+        Inserts a single item into the database.
+        """
+        return cls.insert_many([item])
+
+    @classmethod
+    def get_all(cls):
+        """
+        Returns all the items from the database.
+        """
+        with DbManager() as conn:
+            result = conn.execute(select(cls))
+            return result.fetchall()
+
+
+class ArtistTable(Base):
+    __tablename__ = "artist"
+
+    id: Mapped[int] = mapped_column(primary_key=True)
+    albumcount: Mapped[int] = mapped_column(Integer())
+    artisthash: Mapped[str] = mapped_column(String(), unique=True, index=True)
+    created_date: Mapped[int] = mapped_column(Integer())
+    date: Mapped[int] = mapped_column(Integer())
+    duration: Mapped[int] = mapped_column(Integer())
+    genres: Mapped[str] = mapped_column(JSON())
+    name: Mapped[str] = mapped_column(String(), index=True)
+    trackcount: Mapped[int] = mapped_column(Integer())
+    is_favorite: Mapped[Optional[bool]] = mapped_column(Boolean())
+
+    @classmethod
+    def get_all(cls, start: int, limit: int):
+        with DbManager() as conn:
+            result = conn.execute(select(cls).offset(start).limit(limit))
+            return albums_to_dataclasses(result.fetchall())
+
+
+class AlbumTable(Base):
+    __tablename__ = "album"
+
+    id: Mapped[int] = mapped_column(primary_key=True)
+    albumartists: Mapped[list[dict[str, str]]] = mapped_column(JSON(), index=True)
+    albumhash: Mapped[str] = mapped_column(String(), unique=True, index=True)
+    base_title: Mapped[str] = mapped_column(String())
+    color: Mapped[Optional[str]] = mapped_column(String())
+    created_date: Mapped[int] = mapped_column(Integer())
+    date: Mapped[int] = mapped_column(Integer())
+    duration: Mapped[int] = mapped_column(Integer())
+    genres: Mapped[str] = mapped_column(JSON())
+    og_title: Mapped[str] = mapped_column(String())
+    title: Mapped[str] = mapped_column(String())
+    trackcount: Mapped[int] = mapped_column(Integer())
+
+    @classmethod
+    def get_album_by_albumhash(cls, hash: str):
+        with DbManager() as conn:
+            result = conn.execute(
+                select(AlbumTable).where(AlbumTable.albumhash == hash)
+            )
+            album = result.fetchone()
+
+            if album:
+                return album_to_dataclass(album)
+
+    @classmethod
+    def get_all(cls, start: int, limit: int):
+        with DbManager() as conn:
+            result = conn.execute(select(AlbumTable).offset(start).limit(limit))
+            return albums_to_dataclasses(result.fetchall())
+
+    @classmethod
+    def get_albums_by_artisthashes(cls, artisthashes: list[dict[str, str]]):
+        with DbManager() as conn:
+            albums: list[AlbumModel] = []
+
+            for artist in artisthashes:
+                result = conn.execute(
+                    # NOTE: The artist dict keys need to in the same order they appear in the db for this to work!
+                    select(AlbumTable).where(AlbumTable.albumartists.contains(artist))
+                )
+                albums.extend(albums_to_dataclasses(result.fetchall()))
+
+            print(albums)
+            return albums
+
+    @classmethod
+    def get_albums_by_base_title(cls, base_title: str):
+        with DbManager() as conn:
+            result = conn.execute(
+                select(AlbumTable).where(AlbumTable.base_title == base_title)
+            )
+            return albums_to_dataclasses(result.fetchall())
+
+
+class TrackTable(Base):
+    __tablename__ = "track"
+
+    id: Mapped[int] = mapped_column(init=False, primary_key=True)
+    album: Mapped[str] = mapped_column(String())
+    albumartists: Mapped[list[dict[str, str]]] = mapped_column(JSON())
+    albumhash: Mapped[str] = mapped_column(String(), index=True)
+    artists: Mapped[list[dict[str, str]]] = mapped_column(JSON(), index=True)
+    bitrate: Mapped[int] = mapped_column(Integer())
+    copyright: Mapped[Optional[str]] = mapped_column(String())
+    date: Mapped[int] = mapped_column(Integer())
+    disc: Mapped[int] = mapped_column(Integer())
+    duration: Mapped[int] = mapped_column(Integer())
+    filepath: Mapped[str] = mapped_column(String(), unique=True)
+    folder: Mapped[str] = mapped_column(String(), index=True)
+    genre: Mapped[Optional[list[dict[str, str]]]] = mapped_column(JSON())
+    last_mod: Mapped[float] = mapped_column(Integer())
+    og_album: Mapped[str] = mapped_column(String())
+    og_title: Mapped[str] = mapped_column(String())
+    title: Mapped[str] = mapped_column(String())
+    track: Mapped[int] = mapped_column(Integer())
+    trackhash: Mapped[str] = mapped_column(String(), index=True)
+
+    @classmethod
+    def get_tracks_by_filepaths(cls, filepaths: list[str]):
+        print(filepaths[0])
+        with DbManager() as conn:
+            result = conn.execute(
+                select(TrackTable).where(TrackTable.filepath.in_(filepaths))
+            )
+            return [dict(r) for r in result.mappings().fetchall()]
+
+    @classmethod
+    def count_tracks_containing_paths(cls, paths: list[str]):
+        results: list[dict[str, int | str]] = []
+
+        with DbManager() as conn:
+            for path in paths:
+                result = conn.execute(
+                    select(TrackTable).where(TrackTable.filepath.contains(path))
+                )
+                results.append({"path": path, "trackcount": result.all().__len__()})
+
+        return results
+
+    @classmethod
+    def get_tracks_by_albumhash(cls, albumhash: str):
+        with DbManager() as conn:
+            result = conn.execute(
+                select(TrackTable).where(TrackTable.albumhash == albumhash)
+            )
+            tracks = tracks_to_dataclasses(result.fetchall())
+            return remove_duplicates(tracks, is_album_tracks=True)
+
+
+# SECTION: HELPER FUNCTIONS
+
+
+def album_to_dataclass(album: Row[AlbumTable]):
+    return AlbumModel(**album._asdict())
+
+
+def albums_to_dataclasses(albums: list[Row[AlbumTable]]):
+    return [album_to_dataclass(album) for album in albums]
+
+
+def track_to_dataclass(track: Row[TrackTable]):
+    return TrackModel(**track._asdict())
+
+
+def tracks_to_dataclasses(tracks: list[Row[TrackTable]]):
+    return [track_to_dataclass(track) for track in tracks]
+
+
+Base().metadata.create_all(engine)