import gradio as gr

# Conversion functions
def convert_units(value, conversion_type):
    try:
        value = float(value)
    except:
        return "❌ Please enter a valid number"

    if conversion_type == "Kilogram → Gram":
        return f"{value} kg = {value * 1000} g"
    elif conversion_type == "Gram → Kilogram":
        return f"{value} g = {value / 1000} kg"
    elif conversion_type == "Meter → Feet":
        return f"{value} m = {value * 3.28084:.2f} ft"
    elif conversion_type == "Feet → Meter":
        return f"{value} ft = {value / 3.28084:.2f} m"
    elif conversion_type == "Celsius → Fahrenheit":
        return f"{value} °C = {(value * 9/5) + 32:.2f} °F"
    elif conversion_type == "Fahrenheit → Celsius":
        return f"{value} °F = {(value - 32) * 5/9:.2f} °C"
    else:
        return "❌ Unsupported conversion"

# Gradio interface
demo = gr.Interface(
    fn=convert_units,
    inputs=[
        gr.Textbox(label="Enter value"),
        gr.Dropdown(
            ["Kilogram → Gram", "Gram → Kilogram",
             "Meter → Feet", "Feet → Meter",
             "Celsius → Fahrenheit", "Fahrenheit → Celsius"],
            label="Select Conversion"
        )
    ],
    outputs="text",
    title="🔄 Unit Converter",
    description="Convert between common units like kg ↔ g, m ↔ ft, °C ↔ °F."
)

if __name__ == "__main__":
    demo.launch()