#!/usr/bin/env python3
"""Cycle full-panel red / green / blue on Pico panel(s)."""

from __future__ import annotations

import argparse
import sys
import time

from leds.colors import RGB_CYCLE
from leds.panel_udp import PanelClient, add_panel_args, format_panel_targets, panel_targets_from_args


def main() -> int:
    parser = argparse.ArgumentParser(description="RGB cycle on Pico panel(s)")
    add_panel_args(parser)
    parser.add_argument("--pause", type=float, default=1.0)
    args = parser.parse_args()

    targets = panel_targets_from_args(args)
    print(f"RGB cycle -> {format_panel_targets(targets, args.port)} (Ctrl+C to stop)")

    try:
        with PanelClient.from_args(args) as client:
            while True:
                for label, color in RGB_CYCLE:
                    print(f"  {label}")
                    client.fill(color)
                    time.sleep(args.pause)
    except KeyboardInterrupt:
        print("\nStopped.")
    except OSError as exc:
        print(f"Network error: {exc}", file=sys.stderr)
        return 1
    return 0


if __name__ == "__main__":
    raise SystemExit(main())