"""Bolt Assistant: say "Hey Bolt", ask, hear the answer.

    python -m bolt_assistant                 listen on the default mic
    python -m bolt_assistant --verbose       also show what was heard but ignored
    python -m bolt_assistant --type          type requests instead of speaking (testing)
    python -m bolt_assistant --say "hello"   speak a line through the speaker and exit
    python -m bolt_assistant --devices       list microphones and speakers
    python -m bolt_assistant --check         check settings, server, mic and voice
"""

from __future__ import annotations

import sys
import threading

from . import __version__, audio, config, server


def _devices() -> int:
    import sounddevice as sd

    print(sd.query_devices())
    print("\nDefault input/output:", sd.default.device,
          "\nSet MIC_DEVICE / SPEAKER_DEVICE in .env to an index or a name to choose another.")
    return 0


def _check() -> int:
    from .stt import connect

    ok = True

    def row(name, good, detail):
        nonlocal ok
        ok = ok and good
        print(f"[{' ok ' if good else 'FAIL'}] {name:12} {detail}")

    missing = config.missing_config()
    row("settings", not missing, "all set" if not missing else "missing " + ", ".join(missing))
    try:
        server.check_health()
        row("server", True, config.SERVER_URL)
    except Exception as exc:
        row("server", False, f"{config.SERVER_URL}: {exc}")
    try:
        import sounddevice as sd

        mic = sd.query_devices(config.MIC_DEVICE, "input")["name"]
        out = sd.query_devices(config.SPEAKER_DEVICE, "output")["name"]
        row("microphone", True, mic)
        row("speaker", True, out)
    except Exception as exc:
        row("audio", False, f"{exc} (pip install sounddevice; Linux: libportaudio2)")
    try:
        connect().close()
        row("speech-to-text", True, "/desk/stt reachable")
    except Exception as exc:
        row("speech-to-text", False, f"{exc} (pip install websocket-client)")
    row("commands", True, f"ASSISTANT_COMMANDS={config.COMMANDS}")
    return 0 if ok else 1


def main(argv=None) -> int:
    argv = list(sys.argv[1:] if argv is None else argv)
    for stream in (sys.stdout, sys.stderr):
        try:  # replies carry dashes and curly quotes; a cp1252 console must not crash on them
            stream.reconfigure(errors="replace")
        except Exception:
            pass
    if "-h" in argv or "--help" in argv:
        print(__doc__.strip())
        return 0
    if "--devices" in argv:
        return _devices()
    if "--check" in argv:
        return _check()
    missing = config.missing_config()
    if missing:
        print(f"Missing {', '.join(missing)}. Copy .env.example to .env and fill them in.")
        return 2

    from .assistant import Assistant

    assistant = Assistant(verbose="--verbose" in argv)
    print(f"Bolt Assistant {__version__}  |  {config.SERVER_URL}  |  session {config.SESSION_ID}")

    if "--say" in argv:
        assistant.speak(" ".join(argv[argv.index("--say") + 1:]) or "Hello, I'm Bolt.")
        return 0

    if "--type" in argv:  # the whole pipeline minus the microphone
        print("Type what you'd say (including the wake phrase). Ctrl+C to quit.")
        try:
            while True:
                assistant.heard(input("say> "))
        except (EOFError, KeyboardInterrupt):
            return 0

    stop = threading.Event()
    try:
        mic = audio.open_mic(assistant.on_mic_frame)
    except Exception as exc:
        print(f"Couldn't open the microphone: {exc}\nTry --devices, and MIC_DEVICE in .env.")
        return 1
    try:
        assistant.run(stop)
    except KeyboardInterrupt:
        pass
    finally:
        stop.set()
        mic.stop()
        mic.close()
    return 0


if __name__ == "__main__":
    sys.exit(main())