from PIL import Image
import os
import re
import tqdm 


def create_grid(directory, save_path=None):
    # Get list of image files in the directory
    files = sorted([f for f in os.listdir(directory) if f.endswith('.png')])

    # Assuming all images are the same size
    img_sample = Image.open(os.path.join(directory, files[0]))
    width, height = img_sample.size

    # Calculate grid dimensions for 24 images
    grid_width = width * 6  # 6 images in each row
    grid_height = height * 4  # 4 rows

    # Create new image for the grid
    grid_img = Image.new('RGB', (grid_width, grid_height))

    for idx, file in enumerate(files):
        img = Image.open(os.path.join(directory, file))
        x = idx % 6 * width  # 6 images in each row
        y = idx // 6 * height  # 4 rows
        grid_img.paste(img, (x, y))

    if save_path:
        grid_img.save(f'{save_path}/{directory.split("/")[-1]}_grid.png')
    else:
        grid_img.save(f'{directory}_grid.png')
        

def list_subdirectories(parent_directory):
    # Regex pattern to match the subdirectory naming convention
    pattern = re.compile(r"\d+_of_\d+_masked1")

    # List all subdirectories
    subdirs = [d for d in os.listdir(parent_directory) if os.path.isdir(os.path.join(parent_directory, d))]

    # Filter subdirectories based on naming convention
    matching_subdirs = [d for d in subdirs if pattern.match(d)]

    return matching_subdirs

# List of directories

# for prompt in ["A cat walking in a park", "A dog running in a park", " A wooden barrel drifting on a river", "A kite flying in the sky"]:
# for prompt in ["A car driving on the road"]:
#     try:
#         directories = list_subdirectories(f"demo4/video41-att_mask/{prompt}")
#     except FileNotFoundError:
#         print(f"Directory not found: {prompt}")
#         continue
#     os.makedirs(f"demo4/{prompt}/consolidated_grids", exist_ok=True)
#     for directory in tqdm.tqdm(directories):
#         create_grid(os.path.join(f"demo4/video41-att_mask/{prompt}", directory), save_path=f"demo4/{prompt}/consolidated_grids")