from datasets import load_dataset
from datetime import datetime
from huggingface_hub import login
import os
import gradio as gr
import pyperclip


# show alert function
def show_alert(success, message):
    if success:
        # gr.Info("")
        gr.Success(message)
    else:
        gr.Error("An error occurred!")


# Load the dataset from Hugging Face
login(os.getenv('HUGGING_FACE_KEY'))
dataset = load_dataset("BrynnSalonga/payment-reminder")
df = dataset['train'].to_pandas()  # Convert dataset to DataFrame


# format date
def format_date(date_input):
    if isinstance(date_input, str):
        # Convert the string to a datetime object
        date_obj = datetime.strptime(date_input, "%Y-%m-%d").date()
    else:
        return "Invalid date format."

        # Format the date as "Month Day, Year"
    formatted_date = date_obj.strftime("%B %d, %Y")
    return formatted_date


# function to generate a reminder and replace placeholders with actual values
def generate_reminder(reminder_tone, debtor, invoice_number, amount_due, due_date, currency, creditor):
    # Filter the dataset based on the selected tone
    reminder_data = df[df['reminder_tone'] == reminder_tone]

    if reminder_data.empty:
        return "❌ Sorry, no reminder found for the selected tone."

    # Get the corresponding reminder text in the dataset
    reminder_text = reminder_data.iloc[0]['reminder_text']

    # Replace placeholders with actual values
    reminder_text = reminder_text.replace("[customer_name]", debtor)
    reminder_text = reminder_text.replace("[invoice_number]", invoice_number)
    reminder_text = reminder_text.replace("[amount_due]", amount_due)
    reminder_text = reminder_text.replace("[due_date]", format_date(due_date))
    reminder_text = reminder_text.replace("[currency]", currency)
    reminder_text = reminder_text.replace("[creditor]", creditor)

    return reminder_text


# function for copy to clipboard
def copy_to_clipboard(output_text_value):
    pyperclip.copy(output_text_value)  # Copy the value to clipboard
    show_alert(success=True, message="Copied to clipboard!")