import os
import sys
from datetime import datetime
from pathlib import Path

def merge_specs(feature_number):
    specs_dir = Path("specs")
    if not specs_dir.exists():
        print("Error: 'specs' directory not found.")
        return

    # Find the directory starting with the feature number
    target_dir = None
    for item in specs_dir.iterdir():
        if item.is_dir() and item.name.startswith(f"{feature_number}-"):
            target_dir = item
            break

    if not target_dir:
        print(f"Error: No directory found for feature number '{feature_number}' in 'specs/'.")
        return

    feature_name = target_dir.name
    now = datetime.now().strftime("%Y%m%d-%H%M%S")
    output_filename = f"{feature_name}-{now}.md"
    
    content_blocks = ["Мой коллега предложил такую фичу, оцени ее\n"]

    # Recursively find all files
    files_to_merge = sorted([f for f in target_dir.rglob("*") if f.is_file()])

    for file_path in files_to_merge:
        relative_path = file_path.relative_to(target_dir)
        try:
            with open(file_path, "r", encoding="utf-8") as f:
                file_content = f.read()
            
            content_blocks.append(f"--- FILE: {relative_path} ---\n")
            content_blocks.append(file_content)
            content_blocks.append("\n")
        except Exception as e:
            print(f"Skipping file {file_path} due to error: {e}")

    with open(output_filename, "w", encoding="utf-8") as f:
        f.write("\n".join(content_blocks))

    print(f"Successfully created: {output_filename}")

if __name__ == "__main__":
    if len(sys.argv) < 2:
        print("Usage: python merge_spec.py <feature_number>")
        sys.exit(1)
    
    merge_specs(sys.argv[1])