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#---------------------------------------------------------------------------------------------------------------------#
# CR Animation Nodes by RockOfFire and Akatsuzi  https://github.com/Suzie1/CR-Animation-Nodes
# for ComfyUI                                    https://github.com/comfyanonymous/ComfyUI 
#---------------------------------------------------------------------------------------------------------------------#

import json
import os

#---------------------------------------------------------------------------------------------------------------------#
def read_json_file(file_path):
    """
    Reads a JSON file's content and returns it.
    Ensures content matches the expected format.
    """
    if not os.access(file_path, os.R_OK):
        print(f"Warning: No read permissions for file {file_path}")
        return None

    try:
        with open(file_path, 'r', encoding='utf-8') as file:
            content = json.load(file)
            # Check if the content matches the expected format.
            if not all(['name' in item and 'prompt' in item and 'negative_prompt' in item for item in content]):
                print(f"Warning: Invalid content in file {file_path}")
                return None
            return content
    except Exception as e:
        print(f"An error occurred while reading {file_path}: {str(e)}")
        return None

#---------------------------------------------------------------------------------------------------------------------#
def load_styles_from_directory(directory):
    """
    Loads styles from all JSON files in the directory.
    Renames duplicate style names by appending a suffix.
    """
    #json_files = get_all_json_files(directory)
    json_files = [os.path.join(directory, file) for file in os.listdir(directory) if file.endswith('.json') and os.path.isfile(os.path.join(directory, file))]
    combined_data = []
    seen = set()

    for json_file in json_files:
        json_data = read_json_file(json_file)
        if json_data:
            for item in json_data:
                original_style = item['name']
                style = original_style
                suffix = 1
                while style in seen:
                    style = f"{original_style}_{suffix}"
                    suffix += 1
                item['name'] = style
                seen.add(style)
                combined_data.append(item)

    unique_style_names = [item['name'] for item in combined_data if isinstance(item, dict) and 'name' in item]
    
    return combined_data, unique_style_names

#---------------------------------------------------------------------------------------------------------------------#