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|
"""Background worker for processing article-to-podcast conversions."""
# : dep boto3
# : dep botocore
# : dep openai
# : dep psutil
# : dep pydub
# : dep pytest
# : dep pytest-asyncio
# : dep pytest-mock
# : dep trafilatura
# : out podcastitlater-worker
# : run ffmpeg
import Biz.PodcastItLater.Core as Core
import Biz.PodcastItLater.Worker.Jobs as Jobs
import Biz.PodcastItLater.Worker.Processor as Processor
import Biz.PodcastItLater.Worker.TextProcessing as TextProcessing
import json
import logging
import Omni.App as App
import Omni.Test as Test
import os
import pytest
import signal
import sys
import threading
import unittest.mock
from datetime import datetime
from datetime import timedelta
from datetime import timezone
from typing import Any
logger = logging.getLogger(__name__)
logging.basicConfig(
level=logging.INFO, format="%(levelname)s: %(name)s: %(message)s"
)
# Configuration from environment variables
OPENAI_API_KEY = os.getenv("OPENAI_API_KEY")
area = App.from_env()
# Worker configuration
MAX_ARTICLE_SIZE = 500_000 # 500KB character limit for articles
MEMORY_THRESHOLD = 80 # Percentage threshold for memory usage
class ShutdownHandler:
"""Handles graceful shutdown of the worker."""
def __init__(self) -> None:
"""Initialize shutdown handler."""
self.shutdown_requested = threading.Event()
self.current_job_id: int | None = None
self.lock = threading.Lock()
# Register signal handlers
signal.signal(signal.SIGTERM, self._handle_signal)
signal.signal(signal.SIGINT, self._handle_signal)
def _handle_signal(self, signum: int, _frame: Any) -> None:
"""Handle shutdown signals."""
logger.info(
"Received signal %d, initiating graceful shutdown...",
signum,
)
self.shutdown_requested.set()
def is_shutdown_requested(self) -> bool:
"""Check if shutdown has been requested."""
return self.shutdown_requested.is_set()
def set_current_job(self, job_id: int | None) -> None:
"""Set the currently processing job."""
with self.lock:
self.current_job_id = job_id
def get_current_job(self) -> int | None:
"""Get the currently processing job."""
with self.lock:
return self.current_job_id
def move() -> None:
"""Make the worker move."""
try:
# Initialize database
Core.Database.init_db()
# Start main processing loop
shutdown_handler = ShutdownHandler()
processor = Processor.ArticleProcessor(shutdown_handler)
Jobs.main_loop(shutdown_handler, processor)
except KeyboardInterrupt:
logger.info("Worker stopped by user")
except Exception:
logger.exception("Worker crashed")
raise
class TestMemoryEfficiency(Test.TestCase):
"""Test memory-efficient processing."""
def test_large_article_size_limit(self) -> None:
"""Test that articles exceeding size limits are rejected."""
huge_text = "x" * (MAX_ARTICLE_SIZE + 1000) # Exceed limit
with (
unittest.mock.patch(
"trafilatura.fetch_url",
return_value=huge_text * 4, # Simulate large HTML
),
pytest.raises(ValueError, match="Article too large") as cm,
):
Processor.ArticleProcessor.extract_article_content(
"https://example.com"
)
self.assertIn("Article too large", str(cm.value))
def test_content_truncation(self) -> None:
"""Test that oversized content is truncated."""
large_content = "Content " * 100_000 # Create large content
mock_result = json.dumps({
"title": "Large Article",
"text": large_content,
})
with (
unittest.mock.patch(
"trafilatura.fetch_url",
return_value="<html><body>content</body></html>",
),
unittest.mock.patch(
"trafilatura.extract",
return_value=mock_result,
),
):
title, content, _author, _pub_date = (
Processor.ArticleProcessor.extract_article_content(
"https://example.com",
)
)
self.assertEqual(title, "Large Article")
self.assertLessEqual(len(content), MAX_ARTICLE_SIZE)
def test_memory_usage_check(self) -> None:
"""Test memory usage monitoring."""
usage = Processor.check_memory_usage()
self.assertIsInstance(usage, float)
self.assertGreaterEqual(usage, 0.0)
self.assertLessEqual(usage, 100.0)
class TestWorkerErrorHandling(Test.TestCase):
"""Test worker error handling and recovery."""
def setUp(self) -> None:
"""Set up test environment."""
Core.Database.init_db()
self.user_id, _ = Core.Database.create_user("test@example.com")
self.job_id = Core.Database.add_to_queue(
"https://example.com",
"test@example.com",
self.user_id,
)
self.shutdown_handler = ShutdownHandler()
# Mock environment for processor
self.env_patcher = unittest.mock.patch.dict(
os.environ,
{"OPENAI_API_KEY": "test-key"},
)
self.env_patcher.start()
self.processor = Processor.ArticleProcessor(self.shutdown_handler)
def tearDown(self) -> None:
"""Clean up."""
self.env_patcher.stop()
Core.Database.teardown()
def test_process_pending_jobs_exception_handling(self) -> None:
"""Test that process_pending_jobs handles exceptions."""
def side_effect(job: dict[str, Any]) -> None:
# Simulate process_job starting and setting status to processing
Core.Database.update_job_status(job["id"], "processing")
msg = "Unexpected Error"
raise ValueError(msg)
with (
unittest.mock.patch.object(
self.processor,
"process_job",
side_effect=side_effect,
),
unittest.mock.patch(
"Biz.PodcastItLater.Core.Database.update_job_status",
side_effect=Core.Database.update_job_status,
) as _mock_update,
):
Jobs.process_pending_jobs(self.processor)
# Job should be marked as error
job = Core.Database.get_job_by_id(self.job_id)
self.assertIsNotNone(job)
if job:
self.assertEqual(job["status"], "error")
self.assertIn("Unexpected Error", job["error_message"])
def test_process_retryable_jobs_success(self) -> None:
"""Test processing of retryable jobs."""
# Set up a retryable job
Core.Database.update_job_status(self.job_id, "error", "Fail 1")
# Modify created_at to be in the past to satisfy backoff
with Core.Database.get_connection() as conn:
conn.execute(
"UPDATE queue SET created_at = ? WHERE id = ?",
(
(
datetime.now(tz=timezone.utc) - timedelta(minutes=5)
).isoformat(),
self.job_id,
),
)
conn.commit()
Jobs.process_retryable_jobs()
job = Core.Database.get_job_by_id(self.job_id)
self.assertIsNotNone(job)
if job:
self.assertEqual(job["status"], "pending")
def test_process_retryable_jobs_not_ready(self) -> None:
"""Test that jobs are not retried before backoff period."""
# Set up a retryable job that just failed
Core.Database.update_job_status(self.job_id, "error", "Fail 1")
# created_at is now, so backoff should prevent retry
Jobs.process_retryable_jobs()
job = Core.Database.get_job_by_id(self.job_id)
self.assertIsNotNone(job)
if job:
self.assertEqual(job["status"], "error")
def test() -> None:
"""Run the tests."""
Test.run(
App.Area.Test,
[
Processor.TestArticleExtraction,
Processor.TestTextToSpeech,
Processor.TestIntroOutro,
TestMemoryEfficiency,
Jobs.TestJobProcessing,
TestWorkerErrorHandling,
TextProcessing.TestTextChunking,
],
)
def main() -> None:
"""Entry point for the worker."""
if "test" in sys.argv:
test()
else:
move()
|
