#!/usr/bin/python3

import sys
import os
import pathlib
from utils_types import SignalBoundaries
from utils_sevana import speech_detector

# from pydub import silence, AudioSegment

SILENCE_DELTA = 16

# def find_reference_signal(input_file: pathlib.Path, output_file: pathlib.Path = None, use_end_offset: bool = True) -> SignalBoundaries:
#     myaudio = AudioSegment.from_wav(str(input_file))
#     dBFS = myaudio.dBFS
    
#     # Find silence intervals
#     intervals = silence.detect_nonsilent(myaudio, min_silence_len=1000, silence_thresh=dBFS-SILENCE_DELTA, seek_step=50)
    
#     # Translate to seconds
#     intervals = [((start/1000),(stop/1000)) for start,stop in intervals] # in sec

#     # print(intervals)

#     # Example of intervals: [(5.4, 6.4), (18.7, 37.05)]
#     for p in intervals:
#         if p[1] - p[0] > 17:
#             bounds = SignalBoundaries(offset_start=p[0], offset_finish=p[1])
#             if output_file is not None:
#                 signal = myaudio[bounds.offset_start * 1000 : bounds.offset_finish * 1000]
#                 signal.export(str(output_file), format='wav', parameters=['-ar', '44100', '-sample_fmt', 's16'])

#             if use_end_offset:
#                 bounds.offset_finish = myaudio.duration_seconds - bounds.offset_finish

#             return bounds

#     return SignalBoundaries()


def find_reference_signal_via_speechdetector(input_file: pathlib.Path) -> SignalBoundaries:
    bounds = speech_detector(str(input_file))
    r = SignalBoundaries(bounds[0], bounds[1])
    return bounds

if __name__ == '__main__':
    if len(sys.argv) < 2:
        print(f'Please specify input filename.')
        exit(os.EX_NOINPUT)

    # Output file
    output_file = pathlib.Path(sys.argv[2]) if len(sys.argv) > 2 else None

    # Input file
    input_file = sys.argv[1]
    bounds: SignalBoundaries = find_reference_signal(pathlib.Path(input_file), output_file)
    print (bounds)