Add local subscriptions and the Feed tab

New ytsage/utils/ytsage_library_manager.py: sagetube_library.db
(separate from the upstream download-history DB) with WAL from day one,
holding subscriptions, cached feed_items, watch_history with resume
positions, and the persisted play_queue. Watch history and queue tables
are wired up by the next commit.

FeedPage:
- Local mode: FeedRefreshWorker refreshes each subscribed channel
  sequentially (feed.per_channel_items, default 15) and the grid fills
  incrementally per channel; results are cached so the feed is
  populated instantly on startup.
- Account mode: fetches youtube.com/feed/subscriptions with the user's
  browser cookies - the real logged-in feed; the option is enabled only
  while cookies are active and errors surface as a status banner.
- Sidebar lists subscriptions (double-click opens the channel in
  Browse; context menu unsubscribes). Browse's Subscribe button now
  toggles subscription state through the Feed page.

Verified live: subscribe -> refresh -> 15 videos cached in SQLite and
rendered as cards.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
This commit is contained in:
Jaroslav Beneš
2026-07-25 01:56:12 +02:00
parent 8e935c6116
commit 3afe96a8cd
4 changed files with 542 additions and 8 deletions
+261 -7
View File
@@ -1,20 +1,274 @@
"""
Feed tab - subscriptions feed (placeholder, implemented next)
Feed tab - subscriptions and their video feed
=============================================
Two modes (config feed.mode):
- local: aggregate the most recent uploads of every locally-subscribed
channel (no account needed). Channels refresh sequentially in one worker
thread; the grid fills incrementally as each channel lands.
- account: fetch youtube.com/feed/subscriptions with the user's cookies -
the real logged-in feed. Enabled only while cookies are active.
Subscriptions are stored in LibraryManager (sagetube_library.db); the
Browse page's Subscribe button routes here via the main window.
"""
from typing import Optional
import time
from typing import Any, Dict, List, Optional
from PySide6.QtCore import Qt
from PySide6.QtWidgets import QLabel, QVBoxLayout, QWidget
from PySide6.QtCore import QThread, Qt, Signal
from PySide6.QtWidgets import (
QComboBox,
QHBoxLayout,
QLabel,
QListWidget,
QListWidgetItem,
QMenu,
QPushButton,
QSplitter,
QVBoxLayout,
QWidget,
)
from .ytsage_gui_cards import VideoCardGrid
from ..core.ytsage_client import YtdlpClient, YtdlpWorker
from ..utils.ytsage_config_manager import ConfigManager
from ..utils.ytsage_library_manager import LibraryManager
from ..utils.ytsage_localization import _
from ..utils.ytsage_logger import logger
class FeedRefreshWorker(QThread):
"""Sequentially refresh each subscription's recent uploads."""
channelDone = Signal(str) # channel_id
channelFailed = Signal(str, str) # channel_id, error
allDone = Signal()
def __init__(self, subscriptions: List[Dict[str, Any]], per_channel: int, parent=None) -> None:
super().__init__(parent)
self._subs = subscriptions
self._per_channel = per_channel
self._cancelled = False
def cancel(self) -> None:
self._cancelled = True
def run(self) -> None:
client = YtdlpClient()
for sub in self._subs:
if self._cancelled:
break
try:
entries = client.fetch_flat_entries(
f"{sub['url'].rstrip('/')}/videos", start=1, end=self._per_channel, use_cache=False
)
LibraryManager.upsert_feed_items(sub["channel_id"], entries)
LibraryManager.mark_refreshed(sub["channel_id"])
self.channelDone.emit(sub["channel_id"])
except Exception as e:
logger.warning(f"Feed refresh failed for {sub.get('title')}: {e}")
self.channelFailed.emit(sub["channel_id"], str(e))
self.allDone.emit()
class FeedPage(QWidget):
def __init__(self, router, parent: Optional[QWidget] = None) -> None:
super().__init__(parent)
self._router = router
self._refresh_worker: Optional[FeedRefreshWorker] = None
self._account_worker: Optional[YtdlpWorker] = None
layout = QVBoxLayout(self)
label = QLabel(_("feed.coming_soon"))
label.setAlignment(Qt.AlignmentFlag.AlignCenter)
layout.addWidget(label)
layout.setContentsMargins(8, 8, 8, 8)
bar = QHBoxLayout()
self.mode_combo = QComboBox()
self.mode_combo.addItem(_("feed.mode_local"), "local")
self.mode_combo.addItem(_("feed.mode_account"), "account")
self.mode_combo.setCurrentIndex(0 if (ConfigManager.get("feed.mode") or "local") == "local" else 1)
self.mode_combo.currentIndexChanged.connect(self._on_mode_changed)
bar.addWidget(self.mode_combo)
self.refresh_btn = QPushButton(_("feed.refresh"))
self.refresh_btn.clicked.connect(self.refresh)
bar.addWidget(self.refresh_btn)
self.status_label = QLabel("")
self.status_label.setStyleSheet("color: #9aa0a6;")
bar.addWidget(self.status_label, stretch=1)
layout.addLayout(bar)
splitter = QSplitter(Qt.Orientation.Horizontal, self)
layout.addWidget(splitter, stretch=1)
side = QWidget()
side_layout = QVBoxLayout(side)
side_layout.setContentsMargins(0, 0, 4, 0)
subs_label = QLabel(_("feed.subscriptions"))
subs_label.setStyleSheet("font-weight: bold;")
side_layout.addWidget(subs_label)
self.subs_list = QListWidget()
self.subs_list.setContextMenuPolicy(Qt.ContextMenuPolicy.CustomContextMenu)
self.subs_list.customContextMenuRequested.connect(self._on_subs_context_menu)
self.subs_list.itemDoubleClicked.connect(self._on_sub_activated)
side_layout.addWidget(self.subs_list)
splitter.addWidget(side)
self.grid = VideoCardGrid(router, self)
splitter.addWidget(self.grid)
splitter.setStretchFactor(0, 1)
splitter.setStretchFactor(1, 4)
splitter.setSizes([220, 900])
self.reload_subscriptions()
self._load_cached_feed()
self._update_mode_availability()
# ------------------------------------------------------------ public API
def subscribe_channel(self, meta: Dict[str, Any]) -> None:
"""Wired to BrowsePage.subscribeRequested via the main window."""
channel_id = meta.get("channel_id") or meta.get("url")
if not channel_id or not meta.get("url"):
logger.warning(f"Cannot subscribe, missing channel info: {meta}")
return
if LibraryManager.is_subscribed(str(channel_id)):
LibraryManager.unsubscribe(str(channel_id))
self.status_label.setText(_("feed.unsubscribed", title=meta.get("title") or channel_id))
else:
LibraryManager.subscribe(str(channel_id), meta.get("title") or str(channel_id), meta["url"], meta.get("avatar_url"))
self.status_label.setText(_("feed.subscribed", title=meta.get("title") or channel_id))
self.reload_subscriptions()
def reload_subscriptions(self) -> None:
self.subs_list.clear()
for sub in LibraryManager.subscriptions():
item = QListWidgetItem(sub["title"])
item.setData(Qt.ItemDataRole.UserRole, sub)
self.subs_list.addItem(item)
def refresh(self) -> None:
mode = self.mode_combo.currentData()
ConfigManager.set("feed.mode", mode)
if mode == "account":
self._refresh_account()
else:
self._refresh_local()
# --------------------------------------------------------------- local
def _refresh_local(self) -> None:
if self._refresh_worker is not None:
return
subs = LibraryManager.subscriptions()
if not subs:
self.status_label.setText(_("feed.no_subscriptions"))
return
per_channel = int(ConfigManager.get("feed.per_channel_items") or 15)
self.refresh_btn.setEnabled(False)
self.status_label.setText(_("feed.refreshing", done=0, total=len(subs)))
self._done_count = 0
self._total_count = len(subs)
self._refresh_worker = FeedRefreshWorker(subs, per_channel, parent=self)
self._refresh_worker.channelDone.connect(self._on_channel_done)
self._refresh_worker.channelFailed.connect(self._on_channel_failed)
self._refresh_worker.allDone.connect(self._on_refresh_done)
self._refresh_worker.start()
def _on_channel_done(self, channel_id: str) -> None:
self._done_count += 1
self.status_label.setText(_("feed.refreshing", done=self._done_count, total=self._total_count))
self._load_cached_feed()
def _on_channel_failed(self, channel_id: str, error: str) -> None:
self._done_count += 1
self.status_label.setText(_("feed.channel_failed", error=error[:120]))
def _on_refresh_done(self) -> None:
self.refresh_btn.setEnabled(True)
self.status_label.setText(_("feed.refreshed", count=self.grid.card_count()))
if self._refresh_worker is not None:
self._refresh_worker.deleteLater()
self._refresh_worker = None
def _load_cached_feed(self) -> None:
items = LibraryManager.feed_items()
entries = [
{
"id": it["video_id"],
"url": it["url"],
"title": it["title"],
"channel": it.get("channel"),
"duration": it["duration"],
"thumbnail": it["thumbnail_url"],
}
for it in items
]
self.grid.set_entries(entries)
# -------------------------------------------------------------- account
def _refresh_account(self) -> None:
if self._account_worker is not None:
return
self.refresh_btn.setEnabled(False)
self.status_label.setText(_("feed.fetching_account"))
self._account_worker = YtdlpWorker(lambda c: c.fetch_account_feed(n=60), parent=self)
self._account_worker.result.connect(self._on_account_feed)
self._account_worker.error.connect(self._on_account_error)
self._account_worker.finished.connect(self._on_account_finished)
self._account_worker.start()
def _on_account_feed(self, entries: List[Dict[str, Any]]) -> None:
self.grid.set_entries(entries)
self.status_label.setText(_("feed.refreshed", count=len(entries)))
def _on_account_error(self, message: str) -> None:
logger.error(f"Account feed failed: {message}")
self.status_label.setText(_("feed.account_failed", error=message[:200]))
def _on_account_finished(self) -> None:
self.refresh_btn.setEnabled(True)
if self._account_worker is not None:
self._account_worker.deleteLater()
self._account_worker = None
# ------------------------------------------------------------- internal
def _update_mode_availability(self) -> None:
cookies_on = bool(ConfigManager.get("cookie_active"))
account_index = self.mode_combo.findData("account")
model_item = self.mode_combo.model().item(account_index)
if model_item is not None:
model_item.setEnabled(cookies_on)
if not cookies_on and self.mode_combo.currentData() == "account":
self.mode_combo.setCurrentIndex(self.mode_combo.findData("local"))
def showEvent(self, event) -> None:
self._update_mode_availability()
super().showEvent(event)
def _on_mode_changed(self) -> None:
ConfigManager.set("feed.mode", self.mode_combo.currentData())
def _on_sub_activated(self, item: QListWidgetItem) -> None:
sub = item.data(Qt.ItemDataRole.UserRole)
if sub and sub.get("url"):
self._router.openChannel.emit(sub["url"])
def _on_subs_context_menu(self, pos) -> None:
item = self.subs_list.itemAt(pos)
if item is None:
return
sub = item.data(Qt.ItemDataRole.UserRole)
menu = QMenu(self)
open_action = menu.addAction(_("feed.open_channel"))
unsub_action = menu.addAction(_("browse.unsubscribe"))
action = menu.exec(self.subs_list.mapToGlobal(pos))
if action is open_action and sub.get("url"):
self._router.openChannel.emit(sub["url"])
elif action is unsub_action:
LibraryManager.unsubscribe(sub["channel_id"])
self.reload_subscriptions()
self._load_cached_feed()