#!/usr/bin/env python3
"""
DOLPHIN Scan Bridge Prefect Deployment Script
==============================================
Deploy the scan bridge daemon to Prefect.

Usage:
    python scan_bridge_deploy.py [create|start|stop|status]
"""

import sys
import subprocess
from pathlib import Path

PROJECT_ROOT = Path(__file__).parent.parent
sys.path.insert(0, str(PROJECT_ROOT))
sys.path.insert(0, str(PROJECT_ROOT / 'nautilus_dolphin'))

DAEMON_POOL = "dolphin-daemon-pool"
DAEMON_NAME = "scan-bridge-daemon"
DAEMON_FILE = "prod/scan_bridge_prefect_daemon.py"


def run_cmd(cmd: list, check: bool = True) -> subprocess.CompletedProcess:
    """Run a command and return result."""
    print(f"$ {' '.join(cmd)}")
    return subprocess.run(cmd, check=check, capture_output=True, text=True)


def create_deployment():
    """Create the Prefect deployment."""
    print("=" * 60)
    print("Creating Scan Bridge Prefect Deployment")
    print("=" * 60)
    
    # Check if pool exists
    result = run_cmd(["prefect", "work-pool", "ls"], check=False)
    if DAEMON_POOL not in result.stdout:
        print(f"\n📦 Creating work pool: {DAEMON_POOL}")
        run_cmd(["prefect", "work-pool", "create", DAEMON_POOL, "--type", "process"])
    else:
        print(f"\n✅ Work pool exists: {DAEMON_POOL}")
    
    # Build deployment
    print(f"\n🔨 Building deployment...")
    cmd = [
        "prefect", "deployment", "build",
        f"{DAEMON_FILE}:scan_bridge_daemon_flow",
        "--name", DAEMON_NAME,
        "--pool", DAEMON_POOL,
        "--output", "scan-bridge-daemon-deployment.yaml"
    ]
    run_cmd(cmd)
    
    # Apply deployment
    print(f"\n🚀 Applying deployment...")
    run_cmd(["prefect", "deployment", "apply", "scan-bridge-daemon-deployment.yaml"])
    
    print("\n" + "=" * 60)
    print("✅ Deployment created!")
    print("=" * 60)
    print(f"\nTo start the daemon:")
    print(f"  python scan_bridge_deploy.py start")
    print(f"\nOr manually:")
    print(f"  prefect deployment run 'scan-bridge-daemon/scan-bridge-daemon'")
    print(f"  prefect worker start --pool {DAEMON_POOL}")


def start_worker():
    """Start the Prefect worker for the daemon pool."""
    print("=" * 60)
    print("Starting Prefect Worker")
    print("=" * 60)
    print(f"\nPool: {DAEMON_POOL}")
    print("Press Ctrl+C to stop\n")
    
    try:
        subprocess.run(["prefect", "worker", "start", "--pool", DAEMON_POOL])
    except KeyboardInterrupt:
        print("\n\n👋 Worker stopped")


def check_status():
    """Check deployment status."""
    print("=" * 60)
    print("Scan Bridge Prefect Status")
    print("=" * 60)
    
    # List deployments
    print("\n📋 Deployments:")
    result = run_cmd(["prefect", "deployment", "ls"], check=False)
    if DAEMON_NAME in result.stdout:
        for line in result.stdout.split('\n'):
            if DAEMON_NAME in line:
                print(f"  {line}")
    else:
        print("  ❌ No deployment found")
    
    # List work pools
    print("\n🏊 Work Pools:")
    result = run_cmd(["prefect", "work-pool", "ls"], check=False)
    if DAEMON_POOL in result.stdout:
        for line in result.stdout.split('\n'):
            if DAEMON_POOL in line:
                print(f"  {line}")
    else:
        print(f"  ❌ Pool '{DAEMON_POOL}' not found")
    
    # Check flow runs
    print("\n🔄 Recent Flow Runs:")
    result = run_cmd(["prefect", "flow-run", "ls", "--limit", "5"], check=False)
    if result.stdout:
        print(result.stdout)


def quick_health_check():
    """Run standalone health check."""
    print("=" * 60)
    print("Scan Bridge Health Check")
    print("=" * 60)
    
    import sys
    sys.path.insert(0, '/mnt/dolphinng5_predict/prod')
    from scan_bridge_prefect_daemon import quick_health_check as check
    
    result = check()
    
    print("\n" + "=" * 60)
    status = result.get("status", "unknown")
    age = result.get("age_sec", 0)
    
    if status == "healthy":
        print(f"✅ HEALTHY: Data age {age:.0f}s")
    elif status == "warning":
        print(f"⚠️  WARNING: Data age {age:.0f}s")
    elif status == "stale":
        print(f"❌ STALE: Data age {age:.0f}s")
    else:
        print(f"❌ ERROR: {status}")


def main():
    import argparse
    
    parser = argparse.ArgumentParser(
        description="Deploy and manage Scan Bridge Prefect daemon"
    )
    parser.add_argument(
        "action",
        choices=["create", "start", "stop", "status", "health"],
        default="status",
        nargs="?",
        help="Action to perform"
    )
    
    args = parser.parse_args()
    
    if args.action == "create":
        create_deployment()
    elif args.action == "start":
        start_worker()
    elif args.action == "status":
        check_status()
    elif args.action == "health":
        quick_health_check()
    elif args.action == "stop":
        print("To stop: Press Ctrl+C in the worker terminal")
        print("Or: pkill -f 'prefect worker'")
    else:
        parser.print_help()


if __name__ == "__main__":
    main()