#!/usr/bin/env python3
"""TotTalk Cry Eval — real-time multi-model baby cry classifier."""

from __future__ import annotations

import json
import queue
from pathlib import Path

import click
import numpy as np
import sounddevice as sd
from rich.console import Console
from rich.progress import Progress, SpinnerColumn, TextColumn

from audio.capture import FileCapture, MicCapture
from audio.preprocess import SAMPLE_RATE, compute_rms, is_silent, normalize_audio
from display.table import CryDisplay
from models.ensemble import EnsembleClassifier

console = Console(stderr=True)


def _print_audio_devices() -> None:
    """Print available audio devices for reference."""
    console.print("\n[bold]Audio devices:[/bold]")
    try:
        devices = sd.query_devices()
        default_in = sd.default.device[0]
        for i, d in enumerate(devices):
            marker = " ← default input" if i == default_in else ""
            if d["max_input_channels"] > 0:
                console.print(f"  [{i}] {d['name']}  (in:{d['max_input_channels']}){marker}")
    except Exception as exc:
        console.print(f"  [red]Could not query devices: {exc}[/red]")


def _load_models(ensemble: EnsembleClassifier) -> None:
    """Load all models with a rich progress spinner."""
    console.print()
    with Progress(
        SpinnerColumn(),
        TextColumn("[progress.description]{task.description}"),
        console=console,
    ) as progress:
        task = progress.add_task("Loading models…", total=None)
        results = ensemble.load_all()
        progress.update(task, description="Models loaded.")

    for name, error in results.items():
        if error:
            console.print(f"  [red]✗ {name}: {error}[/red]")
        else:
            console.print(f"  [green]✓ {name}[/green]")
    console.print()


@click.command()
@click.option(
    "--file", "audio_file", default=None, type=click.Path(exists=True),
    help="Path to a WAV/FLAC/MP3 file (loops in sliding windows instead of mic).",
)
@click.option(
    "--models", "model_names", default=None,
    help="Comma-separated subset of models to run: svc,hubert,kibalama,yamnet",
)
@click.option(
    "--no-yamnet-gate", is_flag=True, default=False,
    help="Disable YAMNet gating (always run reason classifiers).",
)
@click.option(
    "--save-log", default=None, type=click.Path(),
    help="Append JSONL predictions to this file.",
)
@click.option(
    "--sensitivity", default=None, type=float,
    help="Silence RMS threshold override (default 0.001). Lower = more sensitive.",
)
def cli(
    audio_file: str | None,
    model_names: str | None,
    no_yamnet_gate: bool,
    save_log: str | None,
    sensitivity: float | None,
) -> None:
    """🍼 TotTalk Cry Eval — real-time multi-model baby cry classifier."""
    console.print("[bold cyan]🍼 TotTalk Cry Eval[/bold cyan]")

    # Override silence threshold if requested
    if sensitivity is not None:
        import audio.preprocess as _ap
        _ap.SILENCE_RMS_THRESHOLD = sensitivity
        console.print(f"[dim]Silence threshold set to {sensitivity}[/dim]")

    # Parse model list
    selected = model_names.split(",") if model_names else None

    # Init ensemble
    ensemble = EnsembleClassifier(
        model_names=selected,
        use_yamnet_gate=not no_yamnet_gate,
    )

    # Print device info
    if audio_file is None:
        _print_audio_devices()

    # Load models
    _load_models(ensemble)

    # Log file handle
    log_fh = None
    if save_log:
        log_fh = open(save_log, "a")  # noqa: SIM115

    # Set up audio source
    if audio_file:
        source_label = f"file: {Path(audio_file).name}"
        capture = FileCapture(audio_file)
    else:
        source_label = "mic"
        capture = MicCapture()

    # Display
    display = CryDisplay()

    try:
        capture.start()
        display.start()
        console.print(f"[dim]Listening ({source_label})… Press Ctrl+C to stop.[/dim]\n")

        while True:
            try:
                window: np.ndarray = capture.window_queue.get(timeout=3.0)
            except queue.Empty:
                continue

            rms = compute_rms(window)
            silent = is_silent(window)

            if silent:
                display.update([], rms, source_label=source_label, is_silent=True)
                continue

            # Peak-normalize so quiet phone playback reaches model-friendly levels
            window = normalize_audio(window)

            predictions = ensemble.predict_all(window, SAMPLE_RATE)
            display.update(predictions, rms, source_label=source_label)

            # Optional JSONL log
            if log_fh is not None:
                record = {
                    "window": display._window_count,
                    "rms": rms,
                    "predictions": [
                        {
                            "model": p.model_name,
                            "label": p.label,
                            "confidence": p.confidence,
                            "latency_ms": p.latency_ms,
                            "error": p.error,
                        }
                        for p in predictions
                    ],
                }
                log_fh.write(json.dumps(record) + "\n")
                log_fh.flush()

    except KeyboardInterrupt:
        console.print("\n[yellow]Stopped.[/yellow]")
    finally:
        capture.stop()
        display.stop()
        if log_fh is not None:
            log_fh.close()


if __name__ == "__main__":
    cli()