myYouTube/backend/app/services/video_presentation.py
vrubelroman fe16c08daa Implement Phase 6: MeTube download integration
- MeTubeClient encapsulates all MeTube HTTP/Socket.IO calls (verified against
  the real MeTube source: /add returns no job id, GET /history gives a queue
  snapshot for reconciliation, filenames arrive already relative, percent is
  a 0-100 float)
- download_jobs table + service: request/dedup active downloads, apply live
  Socket.IO events (added/updated/completed/canceled/cleared) matched by
  canonical YouTube URL, safe relative-path -> public media URL construction
- Reconciliation on startup against MeTube's live queue/done state (section 19):
  non-terminal jobs recovered where possible, else marked "unknown"; already
  completed jobs are left untouched
- POST/GET /api/videos/{id}/download(-status), recheck-local; feed/video
  detail now report real local availability instead of a stub
- Frontend: download button with live status polling (queued/downloading %/
  postprocessing/completed/failed+retry), local <video> playback with
  YouTube fallback on playback error
- health.py now delegates to MeTubeClient (single place for MeTube calls)

26 new backend tests (63 total). Verified live: Socket.IO connects
successfully to the real MeTube instance on deploy.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
2026-09-16 18:56:17 +00:00

57 lines
2.1 KiB
Python

from sqlalchemy import select
from sqlalchemy.orm import Session
from app.models.category import Category
from app.models.channel import Channel
from app.models.channel_category import channel_categories
from app.models.download_job import DownloadJob
from app.models.video import Video
def channel_categories_map(db: Session, channel_ids: list[int]) -> dict[int, list[dict]]:
if not channel_ids:
return {}
rows = db.execute(
select(channel_categories.c.channel_id, Category.id, Category.name)
.join(Category, Category.id == channel_categories.c.category_id)
.where(channel_categories.c.channel_id.in_(channel_ids))
).all()
result: dict[int, list[dict]] = {}
for channel_id, category_id, category_name in rows:
result.setdefault(channel_id, []).append({"id": category_id, "name": category_name})
return result
def _serialize_local(job: DownloadJob | None) -> dict:
if job is None:
return {"available": False, "status": "not_downloaded", "progress_percent": None, "media_url": None}
if job.status == "completed":
return {"available": True, "status": "completed", "progress_percent": 100, "media_url": job.media_url}
return {
"available": False,
"status": job.status,
"progress_percent": job.progress_percent,
"media_url": None,
}
def serialize_video(
video: Video, channel: Channel, categories: list[dict], download_job: DownloadJob | None = None
) -> dict:
return {
"youtube_video_id": video.youtube_video_id,
"title": video.title,
"description": video.description,
"channel": {
"id": channel.id,
"youtube_channel_id": channel.youtube_channel_id,
"title": channel.title,
"thumbnail_url": channel.thumbnail_url,
},
"thumbnail_url": video.thumbnail_url,
"published_at": video.published_at,
"duration_seconds": video.duration_seconds,
"youtube_url": video.youtube_url,
"categories": categories,
"local": _serialize_local(download_job),
}