"""Gunicorn config for the mail web app.

Single process, many threads — SSE/IDLE state is in-process, so multi-worker
would multiply IMAP IDLE connections per user. Threading model is enough for
~50 concurrent users on this host.
"""
import os

bind = f"0.0.0.0:{os.getenv('FLASK_PORT', '5000')}"
workers = int(os.getenv("GUNICORN_WORKERS", "1"))
# gevent: cooperative greenlets, тысячи одновременных SSE без thread-pool boundaries.
# Monkey-patch выставлен в wsgi.py до всех импортов.
worker_class = os.getenv("GUNICORN_WORKER_CLASS", "gevent")
worker_connections = int(os.getenv("GUNICORN_CONNECTIONS", "2000"))
threads = int(os.getenv("GUNICORN_THREADS", "1"))   # для gevent threads не нужны
timeout = 0                 # SSE-стримы могут жить долго; greenlets сами уступают
graceful_timeout = 10
keepalive = 65
preload_app = False         # gevent не любит preload + os.fork

accesslog = "-"
errorlog = "-"
loglevel = os.getenv("GUNICORN_LOGLEVEL", "info")