import logging
logger = logging.getLogger(__name__)
logging.basicConfig(level=logging.INFO)

import gradio as gr
from gradio_calendar import Calendar
from utils import date_to_words  # Annahme: utils.py enthält die date_to_words Funktion
from gematria import calculate_gematria, strip_diacritics
from datetime import datetime, timedelta
import json

# --- Helper Functions ---
def calculate_gematria_sum(text):
    if text:
        text_gematria = calculate_gematria(strip_diacritics(text))
        return text_gematria
    else:
        return None

def perform_gematria_calculation_for_date_range(start_date, end_date):
    logger.info(f"Startdatum: {start_date}, Enddatum: {end_date}")  # Debugging-Ausgabe
    results = {}
    delta = timedelta(days=1)
    current_date = start_date

    while current_date <= end_date:
        date_words = date_to_words(current_date)
        logger.info(f"Datum: {current_date}, Tagesnamen: {date_words}")  # Debugging-Ausgabe
        gematria_sum = calculate_gematria_sum(date_words)
        logger.info(f"Gematria-Summe: {gematria_sum}")  # Debugging-Ausgabe

        if gematria_sum not in results:
            results[gematria_sum] = []

        results[gematria_sum].append({
            "date": current_date.strftime('%Y-%m-%d'),
            "date_words": date_words
        })

        current_date += delta

    return results

def generate_json_output(results, start_date, end_date):
    result = {
        "DateRange": {
            "StartDate": start_date.strftime("%Y-%m-%d"),
            "EndDate": end_date.strftime("%Y-%m-%d")
        },
        "Results": results
    }
    return json.dumps(result, indent=4, ensure_ascii=False)

# --- Main Gradio App ---
with gr.Blocks() as app:
    with gr.Row():
        start_date = Calendar(type="datetime", label="Start Date")  # Zurück zu "datetime"
        end_date = Calendar(type="datetime", label="End Date")    # Zurück zu "datetime"

    calculate_btn = gr.Button("Calculate Gematria for Date Range")
    json_output = gr.Textbox(label="JSON Output")

    # --- Event Handlers ---
    def perform_calculation(start_date, end_date):  # Empfange datetime-Objekte
        logger.info(f"perform_calculation aufgerufen mit: start_date={start_date}, end_date={end_date}")
        results = perform_gematria_calculation_for_date_range(start_date, end_date)
        json_result = generate_json_output(results, start_date, end_date)
        return json_result

    # --- Event Triggers ---
    calculate_btn.click(
        perform_calculation,
        inputs=[start_date, end_date],
        outputs=[json_output],
        api_name="calculate_gematria"
    )

if __name__ == "__main__":
    app.launch(share=False)