# Gunicorn Configuration File for Trasabilitate Application
# Production-ready WSGI server configuration

import multiprocessing
import os

# Server socket
bind = "0.0.0.0:8781"
backlog = 2048

# Worker processes
workers = multiprocessing.cpu_count() * 2 + 1
worker_class = "sync"
worker_connections = 1000
timeout = 30
keepalive = 2

# Restart workers after this many requests, to prevent memory leaks
max_requests = 1000
max_requests_jitter = 50

# Logging
accesslog = "/srv/quality_recticel/logs/access.log"
errorlog = "/srv/quality_recticel/logs/error.log"
loglevel = "info"
access_log_format = '%(h)s %(l)s %(u)s %(t)s "%(r)s" %(s)s %(b)s "%(f)s" "%(a)s" %(D)s'

# Process naming
proc_name = 'trasabilitate_app'

# Daemon mode (set to True for production deployment)
daemon = False

# User/group to run worker processes
# user = "www-data"
# group = "www-data"

# Preload application for better performance
preload_app = True

# Enable automatic worker restarts
max_requests = 1000
max_requests_jitter = 100

# SSL Configuration (uncomment if using HTTPS)
# keyfile = "/path/to/ssl/private.key"
# certfile = "/path/to/ssl/certificate.crt"

# Security
limit_request_line = 4094
limit_request_fields = 100
limit_request_field_size = 8190

def when_ready(server):
    """Called just after the server is started."""
    server.log.info("Trasabilitate Application server is ready. Listening on: %s", server.address)

def worker_int(worker):
    """Called just after a worker exited on SIGINT or SIGQUIT."""
    worker.log.info("Worker received INT or QUIT signal")

def pre_fork(server, worker):
    """Called just before a worker is forked."""
    server.log.info("Worker spawned (pid: %s)", worker.pid)

def post_fork(server, worker):
    """Called just after a worker has been forked."""
    server.log.info("Worker spawned (pid: %s)", worker.pid)

def worker_abort(worker):
    """Called when a worker received the SIGABRT signal."""
    worker.log.info("Worker received SIGABRT signal")