import gradio as gr
import requests
import os
import json
import re
import html

# Set up the API endpoint and key
API_URL = os.getenv("RUNPOD_API_URL")
API_KEY = os.getenv("RUNPOD_API_KEY")

headers = {
    "Authorization": f"Bearer {API_KEY}",
    "Content-Type": "application/json"
}

def escape_html(text):
    return html.escape(text)

def format_response_for_display(text):
    # Escape HTML entities
    text = escape_html(text)
    
    # Format <thinking> and <reflection> tags (case-insensitive)
    text = re.sub(r'(?i)(<thinking>)(.*?)(</thinking>)', 
                  r'<span style="font-family: monospace; color: blue;">\1</span><i>\2</i><span style="font-family: monospace; color: blue;">\3</span>', 
                  text, flags=re.DOTALL)
    text = re.sub(r'(?i)(<reflection>)(.*?)(</reflection>)', 
                  r'<span style="font-family: monospace; color: green;">\1</span><i>\2</i><span style="font-family: monospace; color: green;">\3</span>', 
                  text, flags=re.DOTALL)
    
    # Remove <output> tags but keep content
    text = re.sub(r'(?i)<output>(.*?)</output>', r'\1', text, flags=re.DOTALL)
    
    # Replace newlines with <br> tags
    text = text.replace('\n', '<br>')
    
    return text

def respond(message, history, system_message, max_tokens, temperature, top_p):
    if system_message is not None:
        messages = [{"role": "system", "content": system_message}]
    else:
        messages = []
    
    for human, assistant in history:
        messages.append({"role": "user", "content": human})
        messages.append({"role": "assistant", "content": assistant})
    
    messages.append({"role": "user", "content": message})
    
    data = {
        "model": "forcemultiplier/fmx-reflective-2b",
        "messages": messages,
        "max_tokens": max_tokens,
        "temperature": temperature,
        "top_p": top_p
    }
    
    try:
        print(f"Sending request to API: {API_URL}")
        print(f"Request data: {json.dumps(data, indent=2)}")
        
        response = requests.post(API_URL, headers=headers, json=data)
        
        print(f"Raw API Response: {response.text}")
        print(f"Response Status Code: {response.status_code}")
        
        response.raise_for_status()
        
        response_json = response.json()
        print(f"Formatted API Response: {json.dumps(response_json, indent=2)}")
        
        if 'choices' in response_json and len(response_json['choices']) > 0:
            content = response_json['choices'][0]['message']['content']
            formatted_content = format_response_for_display(content)
            print(f"Formatted content for display: {formatted_content}")  # For debugging
            return formatted_content
        else:
            return f"Error: Unexpected response format. Full response: {response_json}"
    
    except requests.exceptions.RequestException as e:
        print(f"Request Exception: {str(e)}")
        return f"Error: {str(e)}"
    except ValueError as e:
        print(f"JSON Parsing Error: {str(e)}")
        return f"Error: Invalid JSON response. {str(e)}"
    except KeyError as e:
        print(f"Key Error: {str(e)}")
        return f"Error: Unexpected response structure. Missing key: {str(e)}"
    except Exception as e:
        print(f"Unexpected Error: {str(e)}")
        return f"Unexpected error: {str(e)}"

demo = gr.ChatInterface(
    respond,
    additional_inputs=[
        gr.Textbox(label="System message"),
        gr.Slider(minimum=1, maximum=2048, value=512, step=1, label="Max tokens"),
        gr.Slider(minimum=0.1, maximum=2.0, value=0.7, step=0.1, label="Temperature"),
        gr.Slider(minimum=0.1, maximum=1.0, value=0.95, step=0.05, label="Top-p (nucleus sampling)"),
    ],
    css=".message-wrap { white-space: pre-wrap; }"
)

if __name__ == "__main__":
    print(f"Starting application with API URL: {API_URL}")
    demo.launch()