import multiprocessing
import os
import git
import src.banner as banner


def get_git_commit():
    """Get first 6 characters of current git commit hash"""
    try:
        repo = git.Repo(search_parent_directories=True)
        return repo.head.commit.hexsha[:6]
    except Exception:
        return "unknown"


# Server socket
bind = "127.0.0.1:7433"  # nginx will proxy to this
backlog = 2048

# Worker processes
workers = multiprocessing.cpu_count() * 2 + 1  # Recommended formula
worker_class = "uvicorn.workers.UvicornWorker"  # Async worker for FastAPI
worker_connections = 1000
max_requests = 1000  # Restart workers after this many requests
max_requests_jitter = 50  # Add randomness to prevent all workers restarting at once

# Timeouts
timeout = 30  # Workers silent for more than this are killed
keepalive = 2  # Wait this long for requests on Keep-Alive connections

# Logging
accesslog = "./logs/webhook_access.log"
errorlog = "./logs/webhook_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 = "studspider"

# Server mechanics
daemon = False  # Run in foreground (systemd will handle daemonization)
pidfile = "./logs/studspider.pid"
umask = 0
user = None  # Run as current user (systemd will set user)
group = None
tmp_upload_dir = None

# SSL (not needed with nginx, but here for reference)
# keyfile = None
# certfile = None

# Security
limit_request_line = 4096
limit_request_fields = 100
limit_request_field_size = 8190

# Debugging (disable in production)
reload = os.getenv("GUNICORN_RELOAD", "false").lower() == "true"
reload_engine = "auto"


# Hooks
def on_starting(server):
    """Called just before the master process is initialized."""
    print("Studspider WEB starting...")

    # Verify .env file exists (workers will load it via get_sq_env.py)
    from pathlib import Path

    env_path = Path(__file__).parent.parent / ".env"
    print(f"[@DEBUG] Looking for .env at: {env_path.absolute()}")
    if env_path.exists():
        print(f"✓ .env file found (workers will load via get_sq_env.py)")
    else:
        print(f"⚠ No .env file found at {env_path.absolute()}")


def on_reload(server):
    """Called to recycle workers during a reload via SIGHUP."""
    print("🔄 Reloading workers...")


def when_ready(server):
    commit_hash = get_git_commit()
    banner_text = banner.generate("studspider v0.3.0")

    # Add commit hash to the last line of banner
    banner_lines = banner_text.rstrip("\n").split("\n")
    if banner_lines:
        banner_lines[-1] += f"  - {commit_hash}"

    print("\n".join(banner_lines))
    print("Built for PLAY-WELL TEKNOLOGIES by contact@studspider.sh\n\n")
    print("PRODUCTION MODE\n" if os.getenv("SQUARE_ENV") == "production" else "SANDBOX MODE\n")
    print(f"HOST:\t{bind}")
    print(f"WORKERS:\t{workers}")
    print(f"WORKER TYPE:\t{worker_class}")
    print(f"{'=' * 60}\n")


def worker_int(worker):
    """Called just after a worker exited on SIGINT or SIGQUIT."""
    print(f"⚠️  Worker {worker.pid} received INT or QUIT signal")


def worker_abort(worker):
    """Called when a worker received the SIGABRT signal."""
    print(f"❌ Worker {worker.pid} aborted")