app.py

import gradio as gr
import freecurrencyapi
from datetime import datetime

# Initialize FreeCurrencyAPI Client
client = freecurrencyapi.Client('fca_live_TYFdDMZC9xmEEZPpTJCUdcJQIbdGwis1CHmmYF1d')  # Replace with your API key

# Currency list
CURRENCIES = [
    "EUR", "USD", "JPY", "BGN", "CZK", "DKK", "GBP", "HUF", "PLN", "RON", "SEK", "CHF", "ISK", "NOK", 
    "HRK", "RUB", "TRY", "AUD", "BRL", "CAD", "CNY", "HKD", "IDR", "ILS", "INR", "KRW", "MXN", "MYR", 
    "NZD", "PHP", "SGD", "THB", "ZAR"
]

# Function to get exchange rate and convert currency
def convert_currency(amount, from_currency, to_currency):
    try:
        result = client.currencies(currencies=[from_currency, to_currency])
        conversion_rate = result['data'][to_currency] / result['data'][from_currency]
        converted_amount = float(amount) * conversion_rate
        return f"{amount} {from_currency} = {converted_amount:.2f} {to_currency}"
    except Exception as e:
        return f"Error: {str(e)}"

# Function to get historical exchange rates
def get_historical_rates(date, from_currency, to_currency):
    try:
        # Convert date to the format required by the API
        date_obj = datetime.strptime(date, "%Y-%m-%d")
        result = client.historical(date_obj.strftime("%Y-%m-%d"))
        historical_rate = result['data'][date_obj.strftime("%Y-%m-%d")][to_currency] / result['data'][date_obj.strftime("%Y-%m-%d")][from_currency]
        return f"On {date}, {from_currency} to {to_currency} rate was: {historical_rate:.2f}"
    except Exception as e:
        return f"Error: {str(e)}"

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

        # Input for amount
        with gr.Row():
            amount = gr.Textbox(label="Amount", placeholder="Enter amount to convert", elem_id="amount_input")

        # From and To currency dropdowns
        with gr.Row():
            from_currency = gr.Dropdown(choices=CURRENCIES, label="From Currency", value="USD", elem_id="from_currency_input")
            to_currency = gr.Dropdown(choices=CURRENCIES, label="To Currency", value="EUR", elem_id="to_currency_input")

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

        # Output for converted amount
        with gr.Row():
            converted_output = gr.Textbox(label="Converted Amount", interactive=False, elem_id="output_text")

        # Section for historical exchange rates
        with gr.Row():
            historical_date = gr.Textbox(label="Historical Date (YYYY-MM-DD)", placeholder="Enter date for historical rates", elem_id="historical_date_input")
            historical_button = gr.Button("Get Historical Rate", elem_id="historical_button")

        # Output for historical data
        with gr.Row():
            historical_output = gr.Textbox(label="Historical Rate", interactive=False, elem_id="historical_output_text")

        # Button actions
        convert_button.click(fn=convert_currency, inputs=[amount, from_currency, to_currency], outputs=converted_output)
        historical_button.click(fn=get_historical_rates, inputs=[historical_date, from_currency, to_currency], outputs=historical_output)

        # Instructions
        with gr.Row():
            gr.Markdown("""
                #### 💡 Usage Instructions
                - **Amount**: Enter the amount you want to convert.
                - **From Currency**: Select the currency you want to convert from.
                - **To Currency**: Select the currency you want to convert to.
                - **Historical Date**: Enter a date in the format YYYY-MM-DD to get historical rates.

                #### ⚠️ Limitations
                - Historical rates might not be available for all dates, and rates are updated periodically.
            """)

    return interface

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