#!/usr/bin/env python3
"""
Oscillator Data Export

Exports oscillator sensor data in JSON format for external use.

Usage:
    uv run python scripts/oscillator_data_export.py --waveform sine --frequency 1.0 --duration 5.0
"""

import argparse
import json
import time
import sys
from pathlib import Path
from datetime import datetime

# Add mainline to path
sys.path.insert(0, str(Path(__file__).parent.parent))

from engine.sensors.oscillator import OscillatorSensor, register_oscillator_sensor


def export_oscillator_data(
    waveform: str = "sine",
    frequency: float = 1.0,
    duration: float = 5.0,
    sample_rate: float = 60.0,
    output_file: str | None = None,
):
    """Export oscillator data to JSON."""
    print(f"Exporting oscillator data: {waveform} wave at {frequency}Hz")
    print(f"Duration: {duration}s, Sample rate: {sample_rate}Hz")

    # Create oscillator sensor
    register_oscillator_sensor(
        name="export_osc", waveform=waveform, frequency=frequency
    )
    osc = OscillatorSensor(name="export_osc", waveform=waveform, frequency=frequency)
    osc.start()

    # Collect data
    data = {
        "waveform": waveform,
        "frequency": frequency,
        "duration": duration,
        "sample_rate": sample_rate,
        "timestamp": datetime.now().isoformat(),
        "samples": [],
    }

    sample_interval = 1.0 / sample_rate
    num_samples = int(duration * sample_rate)

    print(f"Collecting {num_samples} samples...")

    for i in range(num_samples):
        reading = osc.read()
        if reading:
            data["samples"].append(
                {
                    "index": i,
                    "timestamp": reading.timestamp,
                    "value": reading.value,
                    "phase": osc._phase,
                }
            )
        time.sleep(sample_interval)

    osc.stop()

    # Export to JSON
    if output_file:
        with open(output_file, "w") as f:
            json.dump(data, f, indent=2)
        print(f"Data exported to {output_file}")
    else:
        print(json.dumps(data, indent=2))

    return data


if __name__ == "__main__":
    parser = argparse.ArgumentParser(description="Export oscillator sensor data")
    parser.add_argument(
        "--waveform",
        choices=["sine", "square", "sawtooth", "triangle", "noise"],
        default="sine",
        help="Waveform type",
    )
    parser.add_argument(
        "--frequency", type=float, default=1.0, help="Oscillator frequency in Hz"
    )
    parser.add_argument(
        "--duration", type=float, default=5.0, help="Duration to record in seconds"
    )
    parser.add_argument(
        "--sample-rate", type=float, default=60.0, help="Sample rate in Hz"
    )
    parser.add_argument(
        "--output", "-o", type=str, help="Output JSON file (default: print to stdout)"
    )

    args = parser.parse_args()
    export_oscillator_data(
        waveform=args.waveform,
        frequency=args.frequency,
        duration=args.duration,
        sample_rate=args.sample_rate,
        output_file=args.output,
    )