202 lines
7.3 KiB
Python
202 lines
7.3 KiB
Python
"""Status tracking and update processing for downloads."""
|
|
|
|
import asyncio
|
|
import logging
|
|
import time
|
|
from email.utils import formatdate
|
|
from pathlib import Path
|
|
from typing import TYPE_CHECKING, Any
|
|
|
|
from app.library.Events import EventBus, Events
|
|
from app.library.ffprobe import ffprobe
|
|
|
|
from .types import StatusDict, Terminator
|
|
from .utils import safe_relative_path
|
|
|
|
if TYPE_CHECKING:
|
|
from multiprocessing import Queue
|
|
|
|
from app.library.ItemDTO import ItemDTO
|
|
|
|
|
|
class StatusTracker:
|
|
def __init__(
|
|
self,
|
|
info: "ItemDTO",
|
|
download_id: str,
|
|
download_dir: str,
|
|
temp_path: Path | None,
|
|
status_queue: "Queue[Any]",
|
|
logger: logging.Logger,
|
|
debug: bool = False,
|
|
):
|
|
"""
|
|
Initialize status tracker.
|
|
|
|
Args:
|
|
info: Download information object
|
|
download_id: Unique download identifier
|
|
download_dir: Base download directory
|
|
temp_path: Temporary directory for this download
|
|
status_queue: Multiprocessing queue for status updates
|
|
logger: Logger instance
|
|
debug: Enable debug logging
|
|
|
|
"""
|
|
self.info = info
|
|
self.id = download_id
|
|
self.download_dir = download_dir
|
|
self.temp_path = temp_path
|
|
self.status_queue = status_queue
|
|
self.logger = logger
|
|
self.debug = debug
|
|
self._notify: EventBus = EventBus.get_instance()
|
|
self.tmpfilename: str | None = None
|
|
self.final_update = False
|
|
self.update_task: asyncio.Task | None = None
|
|
|
|
async def process_status_update(self, status: StatusDict) -> None:
|
|
"""
|
|
Process a single status update from the download subprocess.
|
|
|
|
Updates the ItemDTO with progress information, file paths, errors,
|
|
and completion status.
|
|
|
|
Args:
|
|
status: Status dictionary from yt-dlp hooks
|
|
|
|
"""
|
|
if self.final_update:
|
|
return
|
|
|
|
if status.get("id") != self.id or len(status) < 2:
|
|
self.logger.warning(f"Received invalid status update. {status}")
|
|
return
|
|
|
|
if self.debug:
|
|
self.logger.debug(f"Status Update: _id={self.info._id} status={status}")
|
|
|
|
if isinstance(status, str):
|
|
self._notify.emit(Events.ITEM_UPDATED, data=self.info)
|
|
return
|
|
|
|
self.tmpfilename = status.get("tmpfilename")
|
|
|
|
self.info.status = status.get("status", self.info.status)
|
|
self.info.msg = status.get("msg")
|
|
self.info.postprocessor = status.get("postprocessor", None)
|
|
|
|
if "error" == self.info.status and "error" in status:
|
|
self.info.error = status.get("error")
|
|
self._notify.emit(
|
|
Events.LOG_ERROR,
|
|
data=self.info,
|
|
title="Download Error",
|
|
message=f"'{self.info.title}' failed to download. {self.info.error}",
|
|
)
|
|
|
|
if "downloaded_bytes" in status and status.get("downloaded_bytes", 0) > 0:
|
|
self.info.downloaded_bytes = status.get("downloaded_bytes")
|
|
total: float | None = status.get("total_bytes") or status.get("total_bytes_estimate")
|
|
if total:
|
|
try:
|
|
self.info.percent = status["downloaded_bytes"] / total * 100
|
|
except ZeroDivisionError:
|
|
self.info.percent = 0
|
|
self.info.total_bytes = total
|
|
|
|
self.info.speed = status.get("speed")
|
|
self.info.eta = status.get("eta")
|
|
|
|
if final_name := status.get("final_name", None):
|
|
final_name = Path(final_name)
|
|
self.info.datetime = str(formatdate(time.time()))
|
|
self.info.status = "finished"
|
|
self.final_update = True
|
|
self.info.filename = safe_relative_path(final_name, Path(self.download_dir), self.temp_path)
|
|
self.logger.debug(f"Final file name: '{final_name}'.")
|
|
|
|
if final_name.is_file() and final_name.exists():
|
|
try:
|
|
self.info.file_size = final_name.stat().st_size
|
|
except FileNotFoundError:
|
|
self.info.file_size = 0
|
|
|
|
try:
|
|
ff = await ffprobe(final_name)
|
|
self.info.extras["is_video"] = ff.has_video()
|
|
self.info.extras["is_audio"] = ff.has_audio()
|
|
if ff.has_video() or ff.has_audio():
|
|
self.info.extras["duration"] = int(
|
|
float(ff.metadata.get("duration", self.info.extras.get("duration", 0.0)))
|
|
)
|
|
except Exception as e:
|
|
self.info.extras["is_video"] = True
|
|
self.info.extras["is_audio"] = True
|
|
self.logger.exception(e)
|
|
self.logger.error(f"Failed to run ffprobe. {e}")
|
|
|
|
self._notify.emit(Events.ITEM_UPDATED, data=self.info)
|
|
|
|
async def progress_update(self) -> None:
|
|
"""
|
|
Continuous loop that processes status updates from the queue.
|
|
|
|
Runs until a Terminator sentinel is received or the task is cancelled.
|
|
"""
|
|
while True:
|
|
try:
|
|
self.update_task = asyncio.get_running_loop().run_in_executor(None, self.status_queue.get)
|
|
status = await self.update_task
|
|
if status is None or isinstance(status, Terminator):
|
|
return
|
|
await self.process_status_update(status)
|
|
except (asyncio.CancelledError, OSError, FileNotFoundError):
|
|
return
|
|
|
|
async def drain_queue(self, max_iterations: int = 50) -> None:
|
|
"""
|
|
Drain remaining status updates from the queue.
|
|
|
|
Called after download completion to ensure all status updates are processed.
|
|
|
|
Args:
|
|
max_iterations: Maximum number of items to drain
|
|
|
|
"""
|
|
self.logger.debug("Draining status queue.")
|
|
try:
|
|
drain_count: int = max_iterations + (
|
|
self.status_queue.qsize() if hasattr(self.status_queue, "qsize") else 5
|
|
)
|
|
except Exception:
|
|
drain_count = max_iterations + 5
|
|
|
|
for i in range(drain_count):
|
|
try:
|
|
if self.debug:
|
|
self.logger.debug(f"({max_iterations}/{i}) Draining the status queue...")
|
|
if self.final_update:
|
|
if self.debug:
|
|
self.logger.debug(f"({max_iterations}/{i}) Draining stopped. Final update received.")
|
|
break
|
|
next_status = self.status_queue.get(timeout=0.1)
|
|
if next_status is None or isinstance(next_status, Terminator):
|
|
continue
|
|
await self.process_status_update(next_status)
|
|
except Exception as e:
|
|
self.logger.warning(f"Error processing status update during drain: {e}")
|
|
continue
|
|
|
|
def cancel_update_task(self) -> None:
|
|
"""Cancel the progress update task if it's running."""
|
|
try:
|
|
if self.update_task and not self.update_task.done():
|
|
self.update_task.cancel()
|
|
except Exception as e:
|
|
self.logger.error(f"Failed to cancel update task. {e}")
|
|
|
|
def put_terminator(self) -> None:
|
|
"""Put a terminator sentinel in the status queue."""
|
|
if self.status_queue:
|
|
self.status_queue.put(Terminator())
|