import os
import sys
import subprocess

def main():
    source_conf = '/tmp/crmbackend.nginx.conf'
    target_available = '/etc/nginx/sites-available/crmbackend'
    target_enabled = '/etc/nginx/sites-enabled/crmbackend'

    if not os.path.exists(source_conf):
        source_conf = '/home/ubuntu/crmbackend/crmbackend.nginx.conf'

    if not os.path.exists(source_conf):
        print(f"Error: Nginx configuration source file not found at {source_conf}")
        return

    try:
        # Copy to sites-available
        subprocess.run(['sudo', 'cp', source_conf, target_available], check=True)
        print(f"Copied {source_conf} to {target_available}")

        # Enable site symlink
        if not os.path.exists(target_enabled):
            subprocess.run(['sudo', 'ln', '-sf', target_available, target_enabled], check=True)
            print(f"Symlinked {target_available} to {target_enabled}")

        # Test Nginx configuration
        test_res = subprocess.run(['sudo', 'nginx', '-t'], capture_output=True, text=True)
        if test_res.returncode == 0:
            subprocess.run(['sudo', 'systemctl', 'reload', 'nginx'], check=True)
            print("Nginx configuration verified and reloaded successfully.")
        else:
            print(f"Nginx config test failed: {test_res.stderr}")
    except Exception as e:
        print(f"Error configuring Nginx: {e}")

if __name__ == '__main__':
    main()