#!/usr/bin/env python

import os
import shutil
import sys

# Get the source directory from terminal input
if len(sys.argv) != 2:
    print("Usage: python script.py <source_directory>")
    sys.exit(1)

source_dir = sys.argv[1]
base_dir_name = os.path.basename(source_dir.rstrip('/'))
target_dir1 = os.path.join(source_dir, f'{base_dir_name}1')
target_dir2 = os.path.join(source_dir, f'{base_dir_name}2')

# Create the target directories if they don't exist
os.makedirs(target_dir1, exist_ok=True)
os.makedirs(target_dir2, exist_ok=True)

# Get a list of all files in the source directory
files = os.listdir(source_dir)

# Dictionary to keep track of which files have been moved
moved_files = {}

# Iterate over each file in the source directory
for file in files:
    # Skip directories
    if os.path.isdir(os.path.join(source_dir, file)):
        continue

    # Get the base filename (without extension)
    base_filename = os.path.splitext(file)[0]

    # Determine the target directory based on whether the base filename has been seen before
    if base_filename not in moved_files:
        target_dir = target_dir1 if len(moved_files) % 2 == 0 else target_dir2
        moved_files[base_filename] = target_dir
    else:
        target_dir = moved_files[base_filename]

    # Move the file to the appropriate target directory
    shutil.move(os.path.join(source_dir, file), os.path.join(target_dir, file))

print("Files have been separated into two directories.")