"""
Hermes Bridge — Open a command port for remote control by Hermes Agent.

Usage (in Houdini Python Shell or Shelf Tool):
    exec(open('/path/to/hermes_bridge.py').read())

Or install as shelf tool via the .shelf XML file.
"""

import hou

PORT = 12345
IP_MASK = "0.0.0.0"  # Accept connections from anywhere. Use "+.+.+.+" for localhost only.


def get_bridge_status():
    """Check if the bridge port is open."""
    result = hou.hscript("openport")[0]
    if f"Port {PORT} is open" in result:
        return True, result.strip()
    return False, result.strip()


def open_bridge():
    """Open the command port."""
    # Close first in case it's stuck
    hou.hscript(f"closeport {PORT}")
    result, _ = hou.hscript(f"openport {PORT} {IP_MASK}")
    return result.strip()


def close_bridge():
    """Close the command port."""
    result, _ = hou.hscript(f"closeport {PORT}")
    return result.strip()


def show_dialog(message):
    """Show a non-blocking status dialog."""
    hou.ui.displayMessage(
        message,
        title="Hermes Bridge",
        severity=hou.severityType.ImportantMessage,
    )


def main():
    is_open, status = get_bridge_status()

    if is_open:
        # Bridge is already open — show status and offer close
        choice = hou.ui.displayMessage(
            f"Hermes Bridge is ACTIVE\n\nPort: {PORT}\nMask: {IP_MASK}\n\nClick 'Close' to shut down, or 'OK' to keep running.",
            buttons=('OK', 'Close'),
            default_choice=0,
            close_choice=0,
            title="Hermes Bridge",
            severity=hou.severityType.Message,
        )
        if choice == 1:
            result = close_bridge()
            hou.ui.displayMessage(
                f"Hermes Bridge CLOSED\n\n{result}",
                title="Hermes Bridge",
                severity=hou.severityType.ImportantMessage,
            )
    else:
        # Bridge closed — offer to open
        choice = hou.ui.displayMessage(
            f"Hermes Bridge is INACTIVE\n\nPort {PORT} is not open.\n\nOpen it to allow Hermes remote control.",
            buttons=('Open Bridge', 'Cancel'),
            default_choice=0,
            close_choice=1,
            title="Hermes Bridge",
            severity=hou.severityType.Warning,
        )
        if choice == 0:
            result = open_bridge()
            hou.ui.displayMessage(
                f"Hermes Bridge ACTIVE\n\n{result}\n\nHermes can now control Houdini via:\n  hhb eval \"hou.selectedNodes()[0].path()\"",
                title="Hermes Bridge",
                severity=hou.severityType.ImportantMessage,
            )


if __name__ == "__main__":
    main()