import json
import gradio as gr
from textblob import TextBlob

def sentiment_analysis(text:str) -> str:
    """

    Analyze the sentiment of given sentence or text.

    Args:
        text (str) : text to be analysed
        
    Returns:
        str: A JSOn String containing polarity,subjectivity and assessment
    """
    
    blob = TextBlob(text)
    sentiment = blob.sentiment

    result={
        "plarity": round(sentiment.polarity, 2),
        "subjectivity": round(sentiment.subjectivity, 2),
        "assessment": "positive" if sentiment.polarity >0 else "negative" if sentiment.polarity <0 else "neutral"
    }

    return json.dumps(result)

# create gradio interface
demo = gr.Interface(
    fn=sentiment_analysis,
    inputs=gr.Textbox(placeholder="Enter text to analyze..."),
    outputs=gr.Textbox(),
    title="Text Sentiment Analysis",
    description="Analyze the sentiment of text using TextBlob"
)

#Launch the interface and MCP server
if __name__=="__main__":
    demo.launch(mcp_server=True)