"""
Extract peaks from an MP3 file.
"""

import click

@click.command()
@click.option('-i', '--input', 'fp_in', required=True,
  help='Input file')
@click.pass_context
def cli(ctx, fp_in):
  """Extract peaks from an audio file.
  """

  from app.peaks import extract_peaks
  peaks = extract_peaks(fp_in)

  with open(os.path.join(app_cfg.DIR_DATA_STORE, 'peaks/peaks.json'), 'w') as fp_out:
    json.dump(peaks, fp_out, separators=(',', ':'))

  print("Wrote peaks.json")