mirror of
https://github.com/MODSetter/SurfSense.git
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277 lines
8.7 KiB
Python
277 lines
8.7 KiB
Python
"""
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Podcast routes for task status polling and audio retrieval.
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These routes support the podcast generation feature in new-chat.
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Note: The old Chat-based podcast generation has been removed.
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"""
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import os
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from pathlib import Path
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from celery.result import AsyncResult
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from fastapi import APIRouter, Depends, HTTPException
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from fastapi.responses import StreamingResponse
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from sqlalchemy import select
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from sqlalchemy.exc import SQLAlchemyError
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from sqlalchemy.ext.asyncio import AsyncSession
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from app.celery_app import celery_app
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from app.db import (
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Permission,
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Podcast,
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SearchSpace,
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SearchSpaceMembership,
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User,
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get_async_session,
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)
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from app.schemas import PodcastRead
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from app.users import current_active_user
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from app.utils.rbac import check_permission
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router = APIRouter()
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@router.get("/podcasts", response_model=list[PodcastRead])
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async def read_podcasts(
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skip: int = 0,
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limit: int = 100,
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search_space_id: int | None = None,
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session: AsyncSession = Depends(get_async_session),
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user: User = Depends(current_active_user),
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):
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"""
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List podcasts the user has access to.
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Requires PODCASTS_READ permission for the search space(s).
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"""
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if skip < 0 or limit < 1:
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raise HTTPException(status_code=400, detail="Invalid pagination parameters")
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try:
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if search_space_id is not None:
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# Check permission for specific search space
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await check_permission(
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session,
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user,
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search_space_id,
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Permission.PODCASTS_READ.value,
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"You don't have permission to read podcasts in this search space",
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)
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result = await session.execute(
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select(Podcast)
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.filter(Podcast.search_space_id == search_space_id)
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.offset(skip)
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.limit(limit)
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)
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else:
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# Get podcasts from all search spaces user has membership in
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result = await session.execute(
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select(Podcast)
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.join(SearchSpace)
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.join(SearchSpaceMembership)
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.filter(SearchSpaceMembership.user_id == user.id)
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.offset(skip)
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.limit(limit)
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)
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return result.scalars().all()
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except HTTPException:
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raise
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except SQLAlchemyError:
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raise HTTPException(
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status_code=500, detail="Database error occurred while fetching podcasts"
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) from None
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@router.get("/podcasts/{podcast_id}", response_model=PodcastRead)
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async def read_podcast(
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podcast_id: int,
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session: AsyncSession = Depends(get_async_session),
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user: User = Depends(current_active_user),
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):
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"""
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Get a specific podcast by ID.
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Requires PODCASTS_READ permission for the search space.
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"""
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try:
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result = await session.execute(select(Podcast).filter(Podcast.id == podcast_id))
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podcast = result.scalars().first()
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if not podcast:
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raise HTTPException(
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status_code=404,
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detail="Podcast not found",
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)
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# Check permission for the search space
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await check_permission(
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session,
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user,
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podcast.search_space_id,
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Permission.PODCASTS_READ.value,
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"You don't have permission to read podcasts in this search space",
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)
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return podcast
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except HTTPException as he:
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raise he
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except SQLAlchemyError:
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raise HTTPException(
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status_code=500, detail="Database error occurred while fetching podcast"
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) from None
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@router.delete("/podcasts/{podcast_id}", response_model=dict)
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async def delete_podcast(
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podcast_id: int,
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session: AsyncSession = Depends(get_async_session),
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user: User = Depends(current_active_user),
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):
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"""
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Delete a podcast.
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Requires PODCASTS_DELETE permission for the search space.
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"""
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try:
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result = await session.execute(select(Podcast).filter(Podcast.id == podcast_id))
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db_podcast = result.scalars().first()
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if not db_podcast:
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raise HTTPException(status_code=404, detail="Podcast not found")
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# Check permission for the search space
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await check_permission(
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session,
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user,
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db_podcast.search_space_id,
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Permission.PODCASTS_DELETE.value,
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"You don't have permission to delete podcasts in this search space",
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)
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await session.delete(db_podcast)
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await session.commit()
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return {"message": "Podcast deleted successfully"}
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except HTTPException as he:
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raise he
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except SQLAlchemyError:
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await session.rollback()
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raise HTTPException(
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status_code=500, detail="Database error occurred while deleting podcast"
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) from None
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@router.get("/podcasts/{podcast_id}/stream")
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@router.get("/podcasts/{podcast_id}/audio")
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async def stream_podcast(
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podcast_id: int,
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session: AsyncSession = Depends(get_async_session),
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user: User = Depends(current_active_user),
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):
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"""
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Stream a podcast audio file.
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Requires PODCASTS_READ permission for the search space.
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Note: Both /stream and /audio endpoints are supported for compatibility.
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"""
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try:
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result = await session.execute(select(Podcast).filter(Podcast.id == podcast_id))
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podcast = result.scalars().first()
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if not podcast:
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raise HTTPException(
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status_code=404,
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detail="Podcast not found",
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)
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# Check permission for the search space
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await check_permission(
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session,
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user,
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podcast.search_space_id,
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Permission.PODCASTS_READ.value,
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"You don't have permission to access podcasts in this search space",
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)
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# Get the file path
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file_path = podcast.file_location
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# Check if the file exists
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if not file_path or not os.path.isfile(file_path):
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raise HTTPException(status_code=404, detail="Podcast audio file not found")
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# Define a generator function to stream the file
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def iterfile():
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with open(file_path, mode="rb") as file_like:
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yield from file_like
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# Return a streaming response with appropriate headers
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return StreamingResponse(
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iterfile(),
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media_type="audio/mpeg",
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headers={
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"Accept-Ranges": "bytes",
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"Content-Disposition": f"inline; filename={Path(file_path).name}",
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},
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)
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except HTTPException as he:
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raise he
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except Exception as e:
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raise HTTPException(
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status_code=500, detail=f"Error streaming podcast: {e!s}"
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) from e
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@router.get("/podcasts/task/{task_id}/status")
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async def get_podcast_task_status(
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task_id: str,
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user: User = Depends(current_active_user),
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):
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"""
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Get the status of a podcast generation task.
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Used by new-chat frontend to poll for completion.
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Returns:
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- status: "processing" | "success" | "error"
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- podcast_id: (only if status == "success")
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- title: (only if status == "success")
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- error: (only if status == "error")
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"""
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try:
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result = AsyncResult(task_id, app=celery_app)
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if result.ready():
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# Task completed
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if result.successful():
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task_result = result.result
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if isinstance(task_result, dict):
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if task_result.get("status") == "success":
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return {
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"status": "success",
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"podcast_id": task_result.get("podcast_id"),
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"title": task_result.get("title"),
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"transcript_entries": task_result.get("transcript_entries"),
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}
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else:
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return {
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"status": "error",
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"error": task_result.get("error", "Unknown error"),
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}
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else:
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return {
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"status": "error",
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"error": "Unexpected task result format",
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}
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else:
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# Task failed
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return {
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"status": "error",
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"error": str(result.result) if result.result else "Task failed",
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}
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else:
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# Task still processing
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return {
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"status": "processing",
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"state": result.state,
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}
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except Exception as e:
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raise HTTPException(
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status_code=500, detail=f"Error checking task status: {e!s}"
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) from e
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