import os
import sys
import subprocess
from urllib.parse import urlparse
from dotenv import load_dotenv

load_dotenv()

# Add project root to sys.path
PROJECT_ROOT = os.path.abspath(os.path.join(os.path.dirname(__file__), ".."))
if PROJECT_ROOT not in sys.path:
    sys.path.insert(0, PROJECT_ROOT)

from celery_app import celery_app, celery_worker_health

def main():
    print("=" * 60)
    print(" ProspectIQ Celery Worker Launcher")
    print("=" * 60)
    
    broker_url = celery_app.conf.broker_url or "redis://127.0.0.1:6379/0"
    parsed = urlparse(str(broker_url))
    print(f"Broker URL:  {parsed.scheme}://{parsed.hostname}:{parsed.port}")
    print(f"Platform:    {sys.platform}")
    
    # Check if broker is reachable
    print("\nChecking broker connectivity...")
    try:
        if parsed.scheme in {"redis", "rediss"}:
            import redis
            kwargs = {"socket_connect_timeout": 3, "socket_timeout": 3}
            if parsed.scheme == "rediss":
                import ssl
                kwargs["ssl_cert_reqs"] = ssl.CERT_NONE
            client = redis.Redis.from_url(str(broker_url), **kwargs)
            client.ping()
            print("  [OK] Redis broker connection successful.")
    except Exception as exc:
        print(f"  [WARN] Redis connection check failed: {exc}")
        print("  Ensure your Redis server is running (e.g. docker run -p 6379:6379 redis:7-alpine)")

    # Select appropriate pool
    pool = os.environ.get("CELERY_WORKER_POOL")
    if not pool:
        pool = "solo" if sys.platform == "win32" else "solo"
    
    concurrency = os.environ.get("CELERY_WORKER_CONCURRENCY", "1")
    loglevel = os.environ.get("CELERY_LOG_LEVEL", "info")

    print(f"Worker Pool: {pool}")
    print(f"Concurrency: {concurrency}")
    print(f"Log Level:   {loglevel}\n")
    print("Starting Celery worker...\n" + "-" * 60)

    cmd = [
        sys.executable,
        "-m",
        "celery",
        "-A",
        "celery_app.celery_app",
        "worker",
        f"--loglevel={loglevel}",
        f"--pool={pool}",
        f"--concurrency={concurrency}",
    ]

    try:
        subprocess.run(cmd, cwd=PROJECT_ROOT, check=True)
    except KeyboardInterrupt:
        print("\nCelery worker stopped.")

if __name__ == "__main__":
    main()