app.py

import gradio as gr
import speech_recognition as sr
import re

# ------------------------------------------
# Convert spoken text → math expression
# ------------------------------------------
def words_to_expression(text):
    text = text.lower()

    # Word → symbol mapping
    replacements = {
        "plus": "+",
        "add": "+",
        "minus": "-",
        "subtract": "-",
        "into": "*",
        "multiply": "*",
        "times": "*",
        "x": "*",
        "divide": "/",
        "by": "/",
        "mod": "%",
        "power": "**"
    }

    # Replace words with symbols
    for word, symbol in replacements.items():
        text = text.replace(word, symbol)

    # Remove any unwanted characters
    expression = re.sub(r"[^0-9+\-*/%.() ]", "", text)
    return expression


# ------------------------------------------
# Speech Recognition + Calculator
# ------------------------------------------
def voice_calculator(audio):
    if audio is None:
        return "❌ No audio detected! Try again."

    recognizer = sr.Recognizer()

    try:
        with sr.AudioFile(audio) as source:
            audio_data = recognizer.record(source)

        text = recognizer.recognize_google(audio_data)
        expression = words_to_expression(text)

        # Try evaluating the math expression
        try:
            result = eval(expression)
        except Exception:
            return f"🎤 You said: {text}\n❌ Could not understand math expression."

        return f"🎤 You said: {text}\n🧮 Expression: {expression}\n✅ Result: {result}"

    except sr.UnknownValueError:
        return "❌ Could not understand your voice"
    except Exception as e:
        return f"⚠️ Error: {str(e)}"


# ------------------------------------------
# Gradio UI
# ------------------------------------------
app = gr.Interface(
    fn=voice_calculator,
    inputs=gr.Audio(type="filepath", sources=["microphone"], label="🎤 Speak your calculation"),
    outputs="text",
    title="🎤 Voice Calculator",
    description="Speak: 'five plus ten', 'twenty divided by five', 'thirty into two', etc."
)

app.launch()