app.py

from pydrive2.auth import GoogleAuth
from pydrive2.drive import GoogleDrive
import os
import gradio as gr
from datasets import load_dataset, Dataset, concatenate_datasets
import pandas as pd
from PIL import Image
from tqdm import tqdm
import logging
import yaml

# Set up logging
logging.basicConfig(
    level=logging.INFO,
    format='%(asctime)s - %(levelname)s - %(message)s'
)
logger = logging.getLogger(__name__)

# Load settings
if not os.path.exists("settings.yaml"):
    raise FileNotFoundError("settings.yaml file is missing. Please add it with 'client_secrets_file'.")

with open('settings.yaml', 'r') as file:
    settings = yaml.safe_load(file)

# Utility Functions
def safe_load_dataset(dataset_name):
    """Load Hugging Face dataset safely."""
    try:
        dataset = load_dataset(dataset_name)
        return dataset, len(dataset['train']) if 'train' in dataset else 0
    except Exception as e:
        logger.info(f"No existing dataset found. Starting fresh. Error: {str(e)}")
        return None, 0

def is_valid_image(file_path):
    """Check if a file is a valid image."""
    try:
        with Image.open(file_path) as img:
            img.verify()
            return True
    except Exception as e:
        logger.error(f"Invalid image: {file_path}. Error: {str(e)}")
        return False

def validate_input(folder_id, naming_convention):
    """Validate user input."""
    if not folder_id or not folder_id.strip():
        return False, "Folder ID cannot be empty"
    if not naming_convention or not naming_convention.strip():
        return False, "Naming convention cannot be empty"
    if not naming_convention.replace('_', '').isalnum():
        return False, "Naming convention should only contain letters, numbers, and underscores"
    return True, ""

# DatasetManager Class
class DatasetManager:
    def __init__(self, local_images_dir="downloaded_cards"):
        self.local_images_dir = local_images_dir
        self.drive = None
        self.dataset_name = "GotThatData/sports-cards"
        os.makedirs(local_images_dir, exist_ok=True)

    def authenticate_drive(self):
        """Authenticate with Google Drive."""
        try:
            gauth = GoogleAuth()
            gauth.settings['client_config_file'] = settings['client_secrets_file']
            
            # Try to load saved credentials
            gauth.LoadCredentialsFile("credentials.txt")
            if gauth.credentials is None:
                gauth.LocalWebserverAuth()
            elif gauth.access_token_expired:
                gauth.Refresh()
            else:
                gauth.Authorize()
            gauth.SaveCredentialsFile("credentials.txt")
            
            self.drive = GoogleDrive(gauth)
            return True, "Successfully authenticated with Google Drive"
        except Exception as e:
            logger.error(f"Authentication failed: {str(e)}")
            return False, f"Authentication failed: {str(e)}"

    def download_and_rename_files(self, drive_folder_id, naming_convention):
        """Download files from Google Drive and rename them."""
        if not self.drive:
            return False, "Google Drive not authenticated", []
        
        try:
            query = f"'{drive_folder_id}' in parents and trashed=false"
            file_list = self.drive.ListFile({'q': query}).GetList()
            
            if not file_list:
                logger.warning(f"No files found in folder: {drive_folder_id}")
                return False, "No files found in the specified folder.", []

            existing_dataset, start_index = safe_load_dataset(self.dataset_name)
            renamed_files = []
            processed_count = 0
            error_count = 0

            for i, file in enumerate(tqdm(file_list, desc="Downloading files", unit="file")):
                if 'mimeType' in file and 'image' in file['mimeType'].lower():
                    new_filename = f"{naming_convention}_{start_index + processed_count + 1}.jpg"
                    file_path = os.path.join(self.local_images_dir, new_filename)
                    
                    try:
                        file.GetContentFile(file_path)
                        if is_valid_image(file_path):
                            renamed_files.append({
                                'file_path': file_path,
                                'original_name': file['title'],
                                'new_name': new_filename
                            })
                            processed_count += 1
                            logger.info(f"Successfully processed: {file['title']} -> {new_filename}")
                        else:
                            error_count += 1
                            if os.path.exists(file_path):
                                os.remove(file_path)
                    except Exception as e:
                        error_count += 1
                        logger.error(f"Error processing file {file['title']}: {str(e)}")
                        if os.path.exists(file_path):
                            os.remove(file_path)

            status_message = f"Processed {processed_count} images successfully"
            if error_count > 0:
                status_message += f" ({error_count} files failed)"
            
            return True, status_message, renamed_files
        except Exception as e:
            logger.error(f"Download error: {str(e)}")
            return False, f"Error during download: {str(e)}", []

    def update_huggingface_dataset(self, renamed_files):
        """Update Hugging Face dataset with new images."""
        if not renamed_files:
            return False, "No files to update"
            
        try:
            df = pd.DataFrame(renamed_files)
            new_dataset = Dataset.from_pandas(df)

            existing_dataset, _ = safe_load_dataset(self.dataset_name)
            if existing_dataset and 'train' in existing_dataset:
                combined_dataset = concatenate_datasets([existing_dataset['train'], new_dataset])
            else:
                combined_dataset = new_dataset
            
            combined_dataset.push_to_hub(self.dataset_name, split="train")
            return True, f"Successfully updated dataset '{self.dataset_name}' with {len(renamed_files)} new images."
        except Exception as e:
            logger.error(f"Dataset update error: {str(e)}")
            return False, f"Error updating Hugging Face dataset: {str(e)}"

# Process Pipeline
def process_pipeline(folder_id, naming_convention):
    """Main pipeline for processing images and updating dataset."""
    # Validate input
    is_valid, error_message = validate_input(folder_id, naming_convention)
    if not is_valid:
        return error_message, []

    manager = DatasetManager()

    # Step 1: Authenticate Google Drive
    auth_success, auth_message = manager.authenticate_drive()
    if not auth_success:
        return auth_message, []

    # Step 2: Download and rename files
    success, message, renamed_files = manager.download_and_rename_files(folder_id, naming_convention)
    if not success:
        return message, []

    # Step 3: Update Hugging Face dataset
    success, hf_message = manager.update_huggingface_dataset(renamed_files)
    return f"{message}\n{hf_message}", renamed_files

# Gradio Interface
with gr.Blocks(title="Sports Cards Dataset Processor") as demo:
    gr.Markdown("# Sports Cards Dataset Processor")

    with gr.Box():
        gr.Markdown("""
        ### Instructions
        1. Enter the Google Drive folder ID (found in the folder's URL)
        2. Specify a naming convention for the files (e.g., 'sports_card')
        3. Click 'Process Images' to start
        
        Note: Only image files will be processed. Invalid images will be skipped.
        """)
    
    with gr.Row():
        folder_id = gr.Textbox(
            label="Google Drive Folder ID",
            placeholder="Enter the folder ID from the URL",
            info="Found in your Google Drive folder's URL"
        )
        naming_convention = gr.Textbox(
            label="Naming Convention",
            placeholder="e.g., sports_card",
            value="sports_card",
            info="Use only letters, numbers, and underscores"
        )
    
    process_btn = gr.Button("Process Images", variant="primary")
    
    with gr.Row():
        with gr.Column():
            output = gr.Textbox(
                label="Processing Status",
                show_label=True,
                lines=3
            )
        
        with gr.Column():
            output_table = gr.Dataframe(
                label="Processed Files",
                headers=["Original Name", "New Name", "File Path"],
                wrap=True
            )

    def process_ui(folder_id, naming_convention):
        status, renamed_files = process_pipeline(folder_id, naming_convention)
        table_data = [[file['original_name'], file['new_name'], file['file_path']] 
                     for file in renamed_files] if renamed_files else []
        return status, table_data

    process_btn.click(
        fn=process_ui,
        inputs=[folder_id, naming_convention],
        outputs=[output, output_table]
    )

if __name__ == "__main__":
    demo.launch()