app.py

import gradio as gr
import cv2
import numpy as np
from groq import Groq
import time
from PIL import Image as PILImage
import io
import os

def create_monitor_interface():
    api_key = os.getenv("GROQ_API_KEY")
    
    if not api_key:
        with gr.Blocks() as demo:
            gr.Markdown("""
            # ⚠️ Groq API Key Required
            
            ## Setup Instructions for Hugging Face Space:
            1. Go to your Space's Settings tab
            2. Scroll down to "Repository Secrets"
            3. Click "New Secret"
            4. Enter:
               - Secret name: `GROQ_API_KEY`
               - Secret value: Your Groq API key
            5. Click "Add secret"
            6. Rebuild the Space
            
            Once configured, the safety monitoring system will be available.
            """)
        return demo

    class SafetyMonitor:
        def __init__(self, model_name: str = "mixtral-8x7b-vision"):
            self.client = Groq(api_key=api_key)
            self.model_name = model_name

        def analyze_frame(self, frame: np.ndarray) -> str:
            if frame is None:
                return "No frame received"
                
            frame_pil = PILImage.fromarray(frame)
            img_byte_arr = io.BytesIO()
            frame_pil.save(img_byte_arr, format='JPEG')
            img_byte_arr = img_byte_arr.getvalue()
            
            prompt = """Analyze this image for workplace safety issues. Focus on:
            1. PPE usage (helmets, vests, etc.)
            2. Unsafe behaviors
            3. Equipment safety
            4. Environmental hazards
            Provide specific observations."""
            
            try:
                completion = self.client.chat.completions.create(
                    messages=[
                        {
                            "role": "user",
                            "content": [
                                {"type": "text", "text": prompt},
                                {"type": "image", "image": img_byte_arr}
                            ]
                        }
                    ],
                    model=self.model_name,
                    max_tokens=200,
                    temperature=0.2
                )
                return completion.choices[0].message.content
            except Exception as e:
                return f"Analysis Error: {str(e)}"

        def process_frame(self, frame: np.ndarray) -> tuple[np.ndarray, str]:
            if frame is None:
                return None, "No image provided"
                
            analysis = self.analyze_frame(frame)
            display_frame = frame.copy()
            
            # Add text overlay
            overlay = display_frame.copy()
            cv2.rectangle(overlay, (5, 5), (640, 200), (0, 0, 0), -1)
            cv2.addWeighted(overlay, 0.3, display_frame, 0.7, 0, display_frame)
            
            y_position = 30
            for line in analysis.split('\n'):
                cv2.putText(display_frame, line[:80], (10, y_position),
                           cv2.FONT_HERSHEY_SIMPLEX, 0.6, (0, 255, 0), 2)
                y_position += 30

            return display_frame, analysis

    # Create the main interface
    monitor = SafetyMonitor()
    
    with gr.Blocks() as demo:
        gr.Markdown("""
        # Real-time Safety Monitoring System
        Upload an image to analyze workplace safety concerns.
        """)
        
        with gr.Row():
            input_image = gr.Image(label="Upload Image")
            output_image = gr.Image(label="Analysis Results")
        
        analysis_text = gr.Textbox(label="Safety Analysis", lines=5)
            
        def analyze_image(image):
            if image is None:
                return None, "No image provided"
            processed_frame, analysis = monitor.process_frame(image)
            return processed_frame, analysis
            
        input_image.change(
            fn=analyze_image,
            inputs=input_image,
            outputs=[output_image, analysis_text]
        )
        
        gr.Markdown("""
        ## Instructions:
        1. Click the 'Upload Image' area or drag and drop an image
        2. The system will automatically analyze the safety concerns
        3. View the analyzed image and detailed safety report
        """)

    return demo

demo = create_monitor_interface()
demo.launch()