app.py

import gradio as gr
import os
import json
from huggingface_hub import hf_hub_download, list_repo_files
import logging

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

# Cricket annotation categories
ANNOTATION_CATEGORIES = {
    "Bowler's Run Up": ["Fast", "Slow"],
    "Delivery Type": ["Yorker", "Bouncer", "Length Ball", "Slower ball", "Googly", "Arm Ball", "Other"],
    "Ball's trajectory": ["In Swing", "Out Swing", "Off spin", "Leg spin"],
    "Shot Played": ["Cover Drive", "Straight Drive", "On Drive", "Pull", "Square Cut", "Defensive Block"],
    "Outcome of the shot": ["four", "six", "wicket", "runs (1,2,3)"],
    "Shot direction": ["long on", "long off", "cover", "point", "midwicket", "square leg", "third man", "fine leg"],
    "Fielder's Action": ["Catch taken", "Catch dropped", "Misfield", "Run-out attempt", "Fielder fields"]
}

# HuggingFace repo info - replace with your actual repo
HF_REPO_ID = "username/cricket-videos"  # Replace with your actual repo
HF_REPO_TYPE = "dataset"  # or "model" depending on how you've stored the videos

class VideoAnnotator:
    def __init__(self):
        self.video_files = []
        self.current_video_idx = 0
        self.annotations = {}
        
    def load_videos_from_hf(self):
        try:
            logger.info(f"Attempting to list files from HuggingFace repo: {HF_REPO_ID}")
            self.video_files = [f for f in list_repo_files(HF_REPO_ID, repo_type=HF_REPO_TYPE) 
                               if f.endswith(('.mp4', '.avi', '.mov'))]
            logger.info(f"Found {len(self.video_files)} video files")
            return len(self.video_files) > 0
        except Exception as e:
            logger.error(f"Error accessing HuggingFace repo: {e}")
            return False
    
    def get_current_video(self):
        if not self.video_files:
            logger.warning("No video files available")
            return None
        
        video_path = self.video_files[self.current_video_idx]
        logger.info(f"Loading video: {video_path}")
        
        try:
            local_path = hf_hub_download(
                repo_id=HF_REPO_ID,
                filename=video_path,
                repo_type=HF_REPO_TYPE
            )
            logger.info(f"Video downloaded to: {local_path}")
            return local_path
        except Exception as e:
            logger.error(f"Error downloading video: {e}")
            return None
    
    def save_annotation(self, annotations_dict):
        video_name = os.path.basename(self.video_files[self.current_video_idx])
        annotation_file = f"{video_name}_annotations.json"
        
        logger.info(f"Saving annotations for {video_name} to {annotation_file}")
        
        try:
            with open(annotation_file, 'w') as f:
                json.dump(annotations_dict, f, indent=4)
            logger.info("Annotations saved successfully")
            return f"Annotations saved for {video_name}"
        except Exception as e:
            logger.error(f"Error saving annotations: {e}")
            return f"Error saving: {str(e)}"
    
    def next_video(self, *current_annotations):
        # Save current annotations before moving to next video
        if self.video_files:
            annotations_dict = {}
            for i, category in enumerate(ANNOTATION_CATEGORIES.keys()):
                if current_annotations[i]:
                    annotations_dict[category] = current_annotations[i]
            
            if annotations_dict:
                self.save_annotation(annotations_dict)
        
        # Move to next video
        if self.current_video_idx < len(self.video_files) - 1:
            self.current_video_idx += 1
            logger.info(f"Moving to next video (index: {self.current_video_idx})")
            return self.get_current_video(), *[None] * len(ANNOTATION_CATEGORIES)
        else:
            logger.info("Already at the last video")
            return self.get_current_video(), *[None] * len(ANNOTATION_CATEGORIES)
    
    def prev_video(self, *current_annotations):
        # Save current annotations before moving to previous video
        if self.video_files:
            annotations_dict = {}
            for i, category in enumerate(ANNOTATION_CATEGORIES.keys()):
                if current_annotations[i]:
                    annotations_dict[category] = current_annotations[i]
            
            if annotations_dict:
                self.save_annotation(annotations_dict)
        
        # Move to previous video
        if self.current_video_idx > 0:
            self.current_video_idx -= 1
            logger.info(f"Moving to previous video (index: {self.current_video_idx})")
            return self.get_current_video(), *[None] * len(ANNOTATION_CATEGORIES)
        else:
            logger.info("Already at the first video")
            return self.get_current_video(), *[None] * len(ANNOTATION_CATEGORIES)

def create_interface():
    annotator = VideoAnnotator()
    success = annotator.load_videos_from_hf()
    
    if not success:
        logger.error("Failed to load videos. Using demo mode with sample video.")
        # In real app, you might want to provide a sample video or show an error
    
    with gr.Blocks() as demo:
        gr.Markdown("# Cricket Video Annotation Tool")
        
        with gr.Row():
            video_player = gr.Video(label="Current Video")
        
        annotation_components = []
        
        with gr.Row():
            with gr.Column():
                for category, options in list(ANNOTATION_CATEGORIES.items())[:4]:
                    radio = gr.Radio(
                        choices=options,
                        label=category,
                        info=f"Select {category}"
                    )
                    annotation_components.append(radio)
            
            with gr.Column():
                for category, options in list(ANNOTATION_CATEGORIES.items())[4:]:
                    radio = gr.Radio(
                        choices=options,
                        label=category,
                        info=f"Select {category}"
                    )
                    annotation_components.append(radio)
        
        with gr.Row():
            prev_btn = gr.Button("Previous Video")
            save_btn = gr.Button("Save Annotations", variant="primary")
            next_btn = gr.Button("Next Video")
            
        # Initialize with first video
        current_video = annotator.get_current_video()
        if current_video:
            video_player.value = current_video
        
        # Event handlers
        save_btn.click(
            fn=annotator.save_annotation,
            inputs=[gr.Group(annotation_components)],
            outputs=gr.Textbox(label="Status")
        )
        
        next_btn.click(
            fn=annotator.next_video,
            inputs=annotation_components,
            outputs=[video_player] + annotation_components
        )
        
        prev_btn.click(
            fn=annotator.prev_video,
            inputs=annotation_components,
            outputs=[video_player] + annotation_components
        )
        
    return demo

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