47d0799407
- Narrow the title hover target to the actual text, not the whole row. - Linkify descriptions: timestamps (mm:ss / hh:mm:ss) seek the player; emails become mailto:; hashtags link to YouTube's hashtag feed; other URLs open in a new tab. Blank lines are stripped so the popover isn't mostly whitespace. - YouTube links play in the inline player: a link to the current video seeks (honoring t=), a link to another video navigates the player to it, with a Back button to the original. While on a linked video the title/author come from the player and its views/date/duration + a clickable channel come from the detail endpoint, which falls back to the YouTube API (videos.list, attributed to the user) for videos not in our DB.
346 lines
12 KiB
Python
346 lines
12 KiB
Python
from datetime import date, datetime, timedelta, timezone
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from fastapi import APIRouter, Depends, HTTPException, Query
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from sqlalchemy import Select, and_, false, func, or_, select
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from sqlalchemy.orm import Session, aliased
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from app import quota
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from app.auth import current_user
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from app.db import get_db
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from app.models import Channel, ChannelTag, Subscription, Tag, User, Video, VideoState
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from app.sync.videos import parse_iso8601_duration
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from app.youtube.client import YouTubeClient, YouTubeError
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router = APIRouter(prefix="/api", tags=["feed"])
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VALID_STATES = {"new", "watched", "saved", "hidden"}
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HIDDEN_LIVE = ("live", "upcoming")
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def _channel_url(channel_id: str, handle: str | None) -> str:
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if handle and handle.startswith("@"):
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return f"https://www.youtube.com/{handle}"
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return f"https://www.youtube.com/channel/{channel_id}"
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def _serialize(row) -> dict:
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return {
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"id": row.id,
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"title": row.title,
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"channel_id": row.channel_id,
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"channel_title": row.channel_title,
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"channel_thumbnail": row.channel_thumbnail,
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"channel_url": _channel_url(row.channel_id, row.channel_handle),
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"published_at": row.published_at.isoformat() if row.published_at else None,
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"thumbnail_url": row.thumbnail_url,
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"duration_seconds": row.duration_seconds,
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"view_count": row.view_count,
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"is_short": row.is_short,
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"live_status": row.live_status,
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"status": row.status or "new",
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"watch_url": f"https://www.youtube.com/watch?v={row.id}",
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}
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def _filtered_query(
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db: Session,
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user: User,
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*,
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tags: list[int],
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tag_mode: str,
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channel_id: str | None,
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q: str | None,
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min_duration: int | None,
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max_duration: int | None,
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max_age_days: int | None,
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published_after: date | None,
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published_before: date | None,
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show_normal: bool,
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include_shorts: bool,
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include_live: bool,
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show: str,
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) -> tuple[Select, object]:
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"""Build the feed query (joins + all WHERE filters), shared by /feed and /feed/count.
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Returns the column-bearing select plus the watch-status expression for sorting."""
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state = aliased(VideoState)
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status_expr = func.coalesce(state.status, "new")
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query = (
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select(
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Video.id,
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Video.title,
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Video.channel_id,
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Channel.title.label("channel_title"),
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Channel.thumbnail_url.label("channel_thumbnail"),
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Channel.handle.label("channel_handle"),
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Video.published_at,
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Video.thumbnail_url,
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Video.duration_seconds,
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Video.view_count,
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Video.is_short,
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Video.live_status,
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status_expr.label("status"),
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)
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.join(Channel, Channel.id == Video.channel_id)
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# Only channels this user is subscribed to (and hasn't hidden).
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.join(
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Subscription,
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and_(
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Subscription.channel_id == Video.channel_id,
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Subscription.user_id == user.id,
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Subscription.hidden.is_(False),
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),
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)
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.outerjoin(state, and_(state.video_id == Video.id, state.user_id == user.id))
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)
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if channel_id:
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query = query.where(Video.channel_id == channel_id)
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if min_duration is not None:
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query = query.where(Video.duration_seconds >= min_duration)
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if max_duration is not None:
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query = query.where(Video.duration_seconds <= max_duration)
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if max_age_days is not None:
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cutoff = datetime.now(timezone.utc).timestamp() - max_age_days * 86400
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query = query.where(
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Video.published_at >= datetime.fromtimestamp(cutoff, tz=timezone.utc)
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)
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if published_after is not None:
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start = datetime.combine(
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published_after, datetime.min.time(), tzinfo=timezone.utc
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)
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query = query.where(Video.published_at >= start)
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if published_before is not None:
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end = datetime.combine(
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published_before, datetime.min.time(), tzinfo=timezone.utc
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) + timedelta(days=1)
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query = query.where(Video.published_at < end)
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if q:
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like = f"%{q}%"
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query = query.where(or_(Video.title.ilike(like), Channel.title.ilike(like)))
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if tags:
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# AND across tag categories (e.g. language AND topic narrows), OR within a
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# category; the any/all toggle controls multiple topic tags.
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cat_rows = db.execute(select(Tag.id, Tag.category).where(Tag.id.in_(tags))).all()
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by_category: dict[str, list[int]] = {}
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for tag_id, category in cat_rows:
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by_category.setdefault(category, []).append(tag_id)
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visible = or_(ChannelTag.user_id.is_(None), ChannelTag.user_id == user.id)
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for category, ids in by_category.items():
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if category == "topic" and tag_mode == "and" and len(ids) > 1:
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sub = (
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select(ChannelTag.channel_id)
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.where(ChannelTag.tag_id.in_(ids), visible)
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.group_by(ChannelTag.channel_id)
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.having(func.count(func.distinct(ChannelTag.tag_id)) == len(set(ids)))
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)
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else:
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sub = select(ChannelTag.channel_id).where(
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ChannelTag.tag_id.in_(ids), visible
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)
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query = query.where(Video.channel_id.in_(sub))
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# Content type: Normal / Shorts / Live·Upcoming as a union of enabled types.
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# Explicit Watched/Saved/Hidden views show every type so nothing goes missing.
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explicit_view = show in ("watched", "saved", "hidden")
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if not explicit_view:
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type_clauses = []
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if show_normal:
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type_clauses.append(
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and_(Video.is_short.is_(False), Video.live_status.notin_(HIDDEN_LIVE))
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)
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if include_shorts:
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type_clauses.append(Video.is_short.is_(True))
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if include_live:
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type_clauses.append(Video.live_status.in_(HIDDEN_LIVE))
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query = query.where(or_(*type_clauses) if type_clauses else false())
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if show == "unwatched":
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query = query.where(status_expr.notin_(("watched", "hidden")))
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elif show == "watched":
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query = query.where(status_expr == "watched")
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elif show == "saved":
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query = query.where(status_expr == "saved")
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elif show == "hidden":
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query = query.where(status_expr == "hidden")
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else: # all
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query = query.where(status_expr != "hidden")
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return query, status_expr
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# Shared query parameters for /feed and /feed/count.
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def _feed_params(
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tags: list[int] = Query(default=[]),
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tag_mode: str = "or",
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channel_id: str | None = None,
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q: str | None = None,
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min_duration: int | None = None,
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max_duration: int | None = None,
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max_age_days: int | None = None,
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published_after: date | None = None,
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published_before: date | None = None,
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show_normal: bool = True,
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include_shorts: bool = False,
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include_live: bool = False,
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show: str = "unwatched",
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) -> dict:
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return {
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"tags": tags,
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"tag_mode": tag_mode,
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"channel_id": channel_id,
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"q": q,
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"min_duration": min_duration,
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"max_duration": max_duration,
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"max_age_days": max_age_days,
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"published_after": published_after,
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"published_before": published_before,
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"show_normal": show_normal,
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"include_shorts": include_shorts,
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"include_live": include_live,
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"show": show,
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}
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SORTS = {
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"newest": Video.published_at.desc().nulls_last(),
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"oldest": Video.published_at.asc().nulls_last(),
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"views": Video.view_count.desc().nulls_last(),
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"duration_desc": Video.duration_seconds.desc().nulls_last(),
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"duration_asc": Video.duration_seconds.asc().nulls_last(),
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"title": func.lower(Video.title).asc().nulls_last(),
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"subscribers": Channel.subscriber_count.desc().nulls_last(),
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# Your per-channel priority (set in the channel manager), newest first within a tier.
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"priority": Subscription.priority.desc(),
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}
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@router.get("/feed")
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def get_feed(
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params: dict = Depends(_feed_params),
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sort: str = "newest",
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seed: int = 0,
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limit: int = Query(default=60, le=200),
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offset: int = 0,
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user: User = Depends(current_user),
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db: Session = Depends(get_db),
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) -> dict:
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query, _status = _filtered_query(db, user, **params)
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if sort == "priority":
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query = query.order_by(
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Subscription.priority.desc(), Video.published_at.desc().nulls_last()
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)
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else:
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order = SORTS.get(sort)
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if order is None and sort == "shuffle":
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order = func.md5(func.concat(Video.id, str(seed)))
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query = query.order_by(order if order is not None else SORTS["newest"])
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rows = db.execute(query.offset(offset).limit(limit + 1)).all()
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has_more = len(rows) > limit
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return {
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"items": [_serialize(r) for r in rows[:limit]],
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"has_more": has_more,
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"offset": offset,
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"limit": limit,
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}
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@router.get("/feed/count")
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def get_feed_count(
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params: dict = Depends(_feed_params),
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user: User = Depends(current_user),
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db: Session = Depends(get_db),
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) -> dict:
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query, _status = _filtered_query(db, user, **params)
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total = db.scalar(select(func.count()).select_from(query.subquery()))
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return {"count": total or 0}
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@router.post("/videos/{video_id}/state")
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def set_video_state(
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video_id: str,
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payload: dict,
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user: User = Depends(current_user),
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db: Session = Depends(get_db),
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) -> dict:
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status = payload.get("status")
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if status not in VALID_STATES:
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raise HTTPException(status_code=400, detail=f"status must be one of {VALID_STATES}")
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if db.get(Video, video_id) is None:
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raise HTTPException(status_code=404, detail="Unknown video")
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row = db.execute(
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select(VideoState).where(
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VideoState.user_id == user.id, VideoState.video_id == video_id
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)
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).scalar_one_or_none()
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if status == "new":
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if row is not None:
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db.delete(row)
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db.commit()
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return {"video_id": video_id, "status": "new"}
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if row is None:
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row = VideoState(user_id=user.id, video_id=video_id)
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db.add(row)
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row.status = status
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row.watched_at = datetime.now(timezone.utc) if status == "watched" else row.watched_at
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db.commit()
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return {"video_id": video_id, "status": status}
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@router.get("/videos/{video_id}")
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def get_video_detail(
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video_id: str,
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user: User = Depends(current_user),
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db: Session = Depends(get_db),
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) -> dict:
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"""On-demand detail (description, like count) — kept out of the feed list payload
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so the feed stays lean; fetched lazily, e.g. for the title hover popover.
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Videos we already store are served from the DB for free. A video that isn't in
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our DB (e.g. a YouTube link inside another video's description that the in-app
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player navigated to) is resolved via the YouTube API (videos.list, 1 unit,
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attributed to the requesting user)."""
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v = db.get(Video, video_id)
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if v is not None:
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return {
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"id": v.id,
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"description": v.description,
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"like_count": v.like_count,
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"in_db": True,
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"channel_id": v.channel_id,
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"channel_title": v.channel.title if v.channel else None,
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"published_at": v.published_at.isoformat() if v.published_at else None,
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"view_count": v.view_count,
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"duration_seconds": v.duration_seconds,
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}
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try:
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with quota.attribute(user.id, "video_lookup"), YouTubeClient(db, user) as yt:
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items = yt.get_videos([video_id])
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except YouTubeError as exc:
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raise HTTPException(status_code=502, detail=f"YouTube lookup failed: {exc}")
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if not items:
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raise HTTPException(status_code=404, detail="Unknown video")
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snippet = items[0].get("snippet", {})
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stats = items[0].get("statistics", {})
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likes = stats.get("likeCount")
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views = stats.get("viewCount")
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return {
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"id": video_id,
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"description": snippet.get("description"),
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"like_count": int(likes) if likes is not None else None,
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"in_db": False,
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"channel_id": snippet.get("channelId"),
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"channel_title": snippet.get("channelTitle"),
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"published_at": snippet.get("publishedAt"),
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"view_count": int(views) if views is not None else None,
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"duration_seconds": parse_iso8601_duration(
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items[0].get("contentDetails", {}).get("duration")
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),
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}
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