app.py

import gradio as gr
from freecurrencyapi import Client

# Initialize the FreeCurrencyAPI client
api_key = 'fca_live_TYFdDMZC9xmEEZPpTJCUdcJQIbdGwis1CHmmYF1d'  # Replace with your actual API key
client = Client(api_key)

# Function to get current exchange rates
def convert_currency(amount, from_currency, to_currency, historical=False, date=None):
    try:
        if historical and date:
            # Fetch historical data if needed
            result = client.historical(date=date)
            print(f"Historical data for {date}: {result}")  # Debugging line to print the response
            rates = result.get('data', {}).get(date, {})
        else:
            # Get the latest rates
            result = client.currencies(currencies=[from_currency, to_currency])
            print(f"Latest rates: {result}")  # Debugging line to print the response
            rates = result.get('data', {}).get('rates', {})

        # Check if rates for the given currencies are available
        if from_currency in rates and to_currency in rates:
            conversion_rate = rates[to_currency] / rates[from_currency]
            converted_amount = float(amount) * conversion_rate
            return f"{amount} {from_currency} = {converted_amount:.2f} {to_currency}"
        else:
            return f"Error: Data not available for {from_currency} or {to_currency}."

    except Exception as e:
        return f"Error: {str(e)}"

# Define the Gradio interface
def create_interface():
    with gr.Blocks() as interface:
        with gr.Row():
            gr.Markdown("<h1 style='text-align: center;'>Currency Converter</h1>")

        with gr.Row():
            amount = gr.Textbox(label="Amount", value="1", placeholder="Enter amount", elem_id="amount_input")

        with gr.Row():
            from_currency = gr.Dropdown(
                choices=["USD", "EUR", "GBP", "INR", "JPY", "CAD", "AUD", "CNY", "BRL", "ZAR"],
                label="From Currency", value="USD", elem_id="from_currency_input"
            )
            to_currency = gr.Dropdown(
                choices=["USD", "EUR", "GBP", "INR", "JPY", "CAD", "AUD", "CNY", "BRL", "ZAR"],
                label="To Currency", value="EUR", elem_id="to_currency_input"
            )

        with gr.Row():
            historical_checkbox = gr.Checkbox(label="Get Historical Data", value=False)
            historical_date = gr.Textbox(label="Select Date (YYYY-MM-DD)", visible=False)  # Use Textbox for date

        with gr.Row():
            convert_button = gr.Button("Convert")

        with gr.Row():
            output = gr.Textbox(label="Converted Amount", interactive=False)

        # Update the visibility of the date picker based on historical checkbox
        historical_checkbox.change(
            lambda checked: historical_date.update(visible=checked), inputs=[historical_checkbox], outputs=[historical_date]
        )

        # Function to trigger conversion with historical data if required
        convert_button.click(
            fn=convert_currency, 
            inputs=[amount, from_currency, to_currency, historical_checkbox, historical_date],
            outputs=output
        )

    return interface

# Launch the interface
interface = create_interface()
interface.launch(share=True)