#!/usr/bin/env python3
"""Объединение транскрипций из нескольких файлов."""

import sys
import os

def merge_transcriptions(timeline_dir, output_path="merged_plain.txt"):
    """Собирает все .txt файлы в один."""
    txt_files = sorted([f for f in os.listdir(timeline_dir) if f.endswith('.txt') and 'merged' not in f])
    
    merged = []
    for txt_file in txt_files:
        with open(os.path.join(timeline_dir, txt_file), 'r', encoding='utf-8') as f:
            content = f.read().strip()
            if content:
                merged.append(f"--- {txt_file} ---\n{content}\n")
    
    with open(os.path.join(timeline_dir, output_path), 'w', encoding='utf-8') as f:
        f.write('\n\n'.join(merged))
    
    print(f"Merged {len(txt_files)} files into {output_path}")

if __name__ == "__main__":
    dir_path = sys.argv[1] if len(sys.argv) > 1 else "transcription"
    merge_transcriptions(dir_path)