app.py

import os
import base64
import gradio as gr
from PIL import Image
import io
import json
from groq import Groq
import logging

# Set up logging
logging.basicConfig(level=logging.DEBUG)
logger = logging.getLogger(__name__)

# Load environment variables
GROQ_API_KEY = os.environ.get("GROQ_API_KEY")
if not GROQ_API_KEY:
    logger.error("GROQ_API_KEY is not set in environment variables")
    raise ValueError("GROQ_API_KEY is not set")

# Initialize Groq client
client = Groq(api_key=GROQ_API_KEY)

def encode_image(image):
    try:
        if isinstance(image, str):  # If image is a file path
            with open(image, "rb") as image_file:
                return base64.b64encode(image_file.read()).decode('utf-8')
        elif isinstance(image, Image.Image):  # If image is a PIL Image
            buffered = io.BytesIO()
            image.save(buffered, format="PNG")
            return base64.b64encode(buffered.getvalue()).decode('utf-8')
        else:
            raise ValueError(f"Unsupported image type: {type(image)}")
    except Exception as e:
        logger.error(f"Error encoding image: {str(e)}")
        raise

def analyze_construction_image(image):
    if image is None:
        logger.warning("No image provided")
        return [(None, "Error: No image uploaded")], "Error: No image uploaded"

    try:
        logger.info("Starting image analysis")
        image_data_url = f"data:image/png;base64,{encode_image(image)}"
        logger.debug("Image encoded successfully")

        messages = [
            {
                "role": "user",
                "content": [
                    {
                        "type": "text",
                        "text": "Analyze this construction site image. Identify any safety issues or hazards, categorize them, provide a detailed description, and suggest steps to resolve them."
                    },
                    {
                        "type": "image_url",
                        "image_url": {
                            "url": image_data_url
                        }
                    }
                ]
            }
        ]

        logger.info("Sending request to Groq API")
        completion = client.chat.completions.create(
            model="llama-3.2-90b-vision-preview",
            messages=messages,
            temperature=0.7,
            max_tokens=1000,
            top_p=1,
            stream=False,
            stop=None
        )

        logger.info("Received response from Groq API")
        result = completion.choices[0].message.content
        logger.debug(f"Raw API response: {result}")

        if not result:
            logger.warning("Received empty response from API")
            return [(None, "Error: Received empty response from API")], "Error: Received empty response from API"

        # Parse the result
        analysis_text = "Safety and Hazard Analysis of the Construction Site Image:\n\n"
        categories = result.split("Category")[1:]  # Split by categories
        
        if not categories:
            logger.warning("No categories found in the response")
            return [(None, "Error: Unable to parse the response. No categories found.")], "Error: Unable to parse the response"

        for category in categories:
            lines = category.split("\n")
            category_name = lines[0].split(":")[1].strip() if ":" in lines[0] else lines[0].strip()
            analysis_text += f"Category: {category_name}\n"

            description = next((line.split("Description:")[1].strip() for line in lines if "Description:" in line), "N/A")
            hazard = next((line.split("Hazard:")[1].strip() for line in lines if "Hazard:" in line), "N/A")
            resolution_steps = [line.strip() for line in lines if line.strip().startswith("*")]

            analysis_text += f"Description: {description}\n"
            analysis_text += f"Hazard: {hazard}\n"
            analysis_text += "Resolution Steps:\n"
            for step in resolution_steps:
                analysis_text += f"{step}\n"
            analysis_text += "\n"

        logger.info("Analysis completed successfully")
        return [(None, analysis_text)], ""
    except Exception as e:
        logger.error(f"Error during image analysis: {str(e)}")
        logger.error(traceback.format_exc())
        error_message = f"Error during analysis: {str(e)}. Please try again or contact support if the issue persists."
        return [(None, error_message)], error_message
        
def chat_about_image(message, chat_history):
    try:
        # Prepare the conversation history for the API
        messages = [
            {"role": "system", "content": "You are an AI assistant specialized in analyzing construction site images and answering questions about them. Use the information from the initial analysis to answer user queries."},
        ]
        
        # Add chat history to messages
        for human, ai in chat_history:
            if human:
                messages.append({"role": "user", "content": human})
            if ai:
                messages.append({"role": "assistant", "content": ai})
        
        # Add the new user message
        messages.append({"role": "user", "content": message})
        
        # Make API call
        completion = client.chat.completions.create(
            model="llama-3.2-90b-vision-preview",
            messages=messages,
            temperature=0.7,
            max_tokens=500,
            top_p=1,
            stream=False,
            stop=None
        )
        
        response = completion.choices[0].message.content
        chat_history.append((message, response))
        
        return "", chat_history
    except Exception as e:
        logger.error(f"Error during chat: {str(e)}")
        return "", chat_history + [(message, f"Error: {str(e)}")]


# Custom CSS for improved styling
custom_css = """
.container { max-width: 1000px; margin: auto; padding-top: 1.5rem; }
.header { text-align: center; margin-bottom: 2rem; }
.header h1 { color: #2c3e50; font-size: 2.5rem; }
.subheader { color: #34495e; font-size: 1.2rem; margin-bottom: 2rem; }
.image-container { border: 2px dashed #3498db; border-radius: 10px; padding: 1rem; text-align: center; }
.analyze-button { background-color: #2ecc71 !important; color: white !important; }
.clear-button { background-color: #e74c3c !important; color: white !important; }
.chatbot { border: 1px solid #bdc3c7; border-radius: 10px; padding: 1rem; height: 400px; overflow-y: auto; }
.chat-input { border: 1px solid #bdc3c7; border-radius: 5px; padding: 0.5rem; }
.groq-badge { position: fixed; bottom: 10px; right: 10px; background-color: #f39c12; color: white; padding: 5px 10px; border-radius: 5px; font-weight: bold; }
"""

# Create the Gradio interface
with gr.Blocks(css=custom_css, theme=gr.themes.Soft()) as iface:
    gr.HTML(
        """
        <div class="container">
            <div class="header">
                <h1>🏗️ Construction Site Safety Analyzer</h1>
            </div>
            <p class="subheader">Enhance workplace safety and compliance with AI-powered image analysis and expert chat assistance.</p>
        </div>
        """
    )
    
    with gr.Row():
        with gr.Column(scale=1):
            image_input = gr.Image(type="pil", label="Upload Construction Site Image", elem_classes="image-container")
            analyze_button = gr.Button("🔍 Analyze Safety Hazards", elem_classes="analyze-button")
        with gr.Column(scale=2):
            chatbot = gr.Chatbot(label="Safety Analysis Results and Expert Chat", elem_classes="chatbot")
            with gr.Row():
                msg = gr.Textbox(
                    label="Ask about safety measures or regulations",
                    placeholder="E.g., 'What OSHA guidelines apply to this hazard?'",
                    show_label=False,
                    elem_classes="chat-input"
                )
                clear = gr.Button("🗑️ Clear Chat", elem_classes="clear-button")

    analyze_button.click(
        analyze_construction_image,
        inputs=[image_input],
        outputs=[chatbot]
    )

    msg.submit(chat_about_image, [msg, chatbot], [msg, chatbot])
    clear.click(lambda: None, None, chatbot, queue=False)

    gr.HTML(
        """
        <div class="groq-badge">Powered by Groq</div>
        """
    )

# Launch the app
if __name__ == "__main__":
    iface.launch(debug=True)