import os import shutil import zipfile import tempfile import gradio as gr from pathlib import Path from typing import List, Dict, Optional, Tuple from pytubefix import YouTube import logging from utils import is_image_file, is_video_file, add_prefix_to_caption from image_preprocessing import normalize_image from config import NORMALIZE_IMAGES_TO, TRAINING_VIDEOS_PATH, VIDEOS_TO_SPLIT_PATH, TRAINING_PATH, DEFAULT_PROMPT_PREFIX logger = logging.getLogger(__name__) class ImportService: def process_uploaded_files(self, file_paths: List[str]) -> str: """Process uploaded file (ZIP, MP4, or image) Args: file_paths: File paths to the ploaded files from Gradio Returns: Status message string """ for file_path in file_paths: file_path = Path(file_path) try: original_name = file_path.name print("original_name = ", original_name) # Determine file type from name file_ext = file_path.suffix.lower() if file_ext == '.zip': return self.process_zip_file(file_path) elif file_ext == '.mp4' or file_ext == '.webm': return self.process_mp4_file(file_path, original_name) elif is_image_file(file_path): return self.process_image_file(file_path, original_name) else: raise gr.Error(f"Unsupported file type: {file_ext}") except Exception as e: raise gr.Error(f"Error processing file: {str(e)}") def process_image_file(self, file_path: Path, original_name: str) -> str: """Process a single image file Args: file_path: Path to the image original_name: Original filename Returns: Status message string """ try: # Create a unique filename with configured extension stem = Path(original_name).stem target_path = STAGING_PATH / f"{stem}.{NORMALIZE_IMAGES_TO}" # If file already exists, add number suffix counter = 1 while target_path.exists(): target_path = STAGING_PATH / f"{stem}___{counter}.{NORMALIZE_IMAGES_TO}" counter += 1 # Convert to normalized format and remove black bars success = normalize_image(file_path, target_path) if not success: raise gr.Error(f"Failed to process image: {original_name}") # Handle caption src_caption_path = file_path.with_suffix('.txt') if src_caption_path.exists(): caption = src_caption_path.read_text() caption = add_prefix_to_caption(caption, DEFAULT_PROMPT_PREFIX) target_path.with_suffix('.txt').write_text(caption) logger.info(f"Successfully stored image: {target_path.name}") gr.Info(f"Successfully stored image: {target_path.name}") return f"Successfully stored image: {target_path.name}" except Exception as e: raise gr.Error(f"Error processing image file: {str(e)}") def process_zip_file(self, file_path: Path) -> str: """Process uploaded ZIP file containing media files Args: file_path: Path to the uploaded ZIP file Returns: Status message string """ try: video_count = 0 image_count = 0 # Create temporary directory with tempfile.TemporaryDirectory() as temp_dir: # Extract ZIP extract_dir = Path(temp_dir) / "extracted" extract_dir.mkdir() with zipfile.ZipFile(file_path, 'r') as zip_ref: zip_ref.extractall(extract_dir) # Process each file for root, _, files in os.walk(extract_dir): for file in files: if file.startswith('._'): # Skip Mac metadata continue file_path = Path(root) / file try: if is_video_file(file_path): # Copy video to videos_to_split target_path = VIDEOS_TO_SPLIT_PATH / file_path.name counter = 1 while target_path.exists(): target_path = VIDEOS_TO_SPLIT_PATH / f"{file_path.stem}___{counter}{file_path.suffix}" counter += 1 shutil.copy2(file_path, target_path) video_count += 1 elif is_image_file(file_path): # Convert image and save to staging target_path = STAGING_PATH / f"{file_path.stem}.{NORMALIZE_IMAGES_TO}" counter = 1 while target_path.exists(): target_path = STAGING_PATH / f"{file_path.stem}___{counter}.{NORMALIZE_IMAGES_TO}" counter += 1 if normalize_image(file_path, target_path): image_count += 1 # Copy associated caption file if it exists txt_path = file_path.with_suffix('.txt') if txt_path.exists(): if is_video_file(file_path): shutil.copy2(txt_path, target_path.with_suffix('.txt')) elif is_image_file(file_path): shutil.copy2(txt_path, target_path.with_suffix('.txt')) except Exception as e: logger.error(f"Error processing {file_path.name}: {str(e)}") continue # Generate status message parts = [] if video_count > 0: parts.append(f"{video_count} videos") if image_count > 0: parts.append(f"{image_count} images") if not parts: return "No supported media files found in ZIP" status = f"Successfully stored {' and '.join(parts)}" gr.Info(status) return status except Exception as e: raise gr.Error(f"Error processing ZIP: {str(e)}") def process_mp4_file(self, file_path: Path, original_name: str) -> str: """Process a single video file Args: file_path: Path to the file original_name: Original filename Returns: Status message string """ try: # Create a unique filename target_path = VIDEOS_TO_SPLIT_PATH / original_name # If file already exists, add number suffix counter = 1 while target_path.exists(): stem = Path(original_name).stem target_path = VIDEOS_TO_SPLIT_PATH / f"{stem}___{counter}.mp4" counter += 1 # Copy the file to the target location shutil.copy2(file_path, target_path) gr.Info(f"Successfully stored video: {target_path.name}") return f"Successfully stored video: {target_path.name}" except Exception as e: raise gr.Error(f"Error processing video file: {str(e)}") def download_youtube_video(self, url: str, progress=None) -> Dict: """Download a video from YouTube Args: url: YouTube video URL progress: Optional Gradio progress indicator Returns: Dict with status message and error (if any) """ try: # Extract video ID and create YouTube object yt = YouTube(url, on_progress_callback=lambda stream, chunk, bytes_remaining: progress((1 - bytes_remaining / stream.filesize), desc="Downloading...") if progress else None) video_id = yt.video_id output_path = VIDEOS_TO_SPLIT_PATH / f"{video_id}.mp4" # Download highest quality progressive MP4 if progress: print("Getting video streams...") progress(0, desc="Getting video streams...") video = yt.streams.filter(progressive=True, file_extension='mp4').order_by('resolution').desc().first() if not video: print("Could not find a compatible video format") gr.Error("Could not find a compatible video format") return "Could not find a compatible video format" # Download the video if progress: print("Starting YouTube video download...") progress(0, desc="Starting download...") video.download(output_path=str(VIDEOS_TO_SPLIT_PATH), filename=f"{video_id}.mp4") # Update UI if progress: print("YouTube video download complete!") gr.Info("YouTube video download complete!") progress(1, desc="Download complete!") return f"Successfully downloaded video: {yt.title}" except Exception as e: print(e) gr.Error(f"Error downloading video: {str(e)}") return f"Error downloading video: {str(e)}"