Daniel Bedeleanu
ea49cd6e4a
- Create backend/services/image_storage.py with 4 core functions:
- sanitize_filename(): remove unsafe chars, limit to 255 chars, convert to lowercase
- get_unique_filename(): handle collisions with UUID suffix (format: {name}_{uuid8}_{variant}.jpg)
- ensure_image_directories(): create /images/ root and category subdirs on startup
- save_image(): save bytes to /images/{category}/{filename}, returns relative path
- Create comprehensive test suite (22 tests) covering all functionality
- Integrate ensure_image_directories() into FastAPI startup event
- Directory structure: /images/{category}/{filename}
- Collision handling: auto-suffix with UUID if filename exists
- All tests passing, pathlib.Path for safe operations
43 lines
1.4 KiB
Python
43 lines
1.4 KiB
Python
from threading import Event, Thread
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from apscheduler.schedulers.base import BaseScheduler
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from apscheduler.schedulers.blocking import BlockingScheduler
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from apscheduler.util import asbool
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class BackgroundScheduler(BlockingScheduler):
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"""
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A scheduler that runs in the background using a separate thread
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(:meth:`~apscheduler.schedulers.base.BaseScheduler.start` will return immediately).
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Extra options:
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========== =============================================================================
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``daemon`` Set the ``daemon`` option in the background thread (defaults to ``True``, see
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`the documentation
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<https://docs.python.org/3.4/library/threading.html#thread-objects>`_
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for further details)
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========== =============================================================================
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"""
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_thread = None
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def _configure(self, config):
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self._daemon = asbool(config.pop("daemon", True))
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super()._configure(config)
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def start(self, *args, **kwargs):
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if self._event is None or self._event.is_set():
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self._event = Event()
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BaseScheduler.start(self, *args, **kwargs)
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self._thread = Thread(
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target=self._main_loop, name="APScheduler", daemon=self._daemon
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)
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self._thread.start()
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def shutdown(self, *args, **kwargs):
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super().shutdown(*args, **kwargs)
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self._thread.join()
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del self._thread
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