#!/usr/bin/env python3
# -*- coding: utf-8 -*-

"""
Generate QR code for payment to Fio bank account 2800046620/2010.
You can change AMOUNT and VARIABLE_SYMBOL as needed.
"""

import qrcode
from pathlib import Path
from PIL import Image

# ================================
# 💳 CONFIGURATION
# ================================
# Account in IBAN format (Fio Banka 2800046620 / 2010)
IBAN = "CZ9520100000002800046620"

# Define variables you want to change before each run
AMOUNT = 850.00               # 💰 amount in CZK
VARIABLE_SYMBOL = "20251105"  # 🔢 variabilní symbol
MESSAGE = "Platba za službu"  # optional note shown in banking app

# ================================
# 🧩 Construct SPD string
# ================================
spayd = f"SPD*1.0*ACC:{IBAN}*AM:{AMOUNT:.2f}*CC:CZK*X-VS:{VARIABLE_SYMBOL}*MSG:{MESSAGE}"

# ================================
# 🖼 Generate QR code
# ================================
qr = qrcode.QRCode(
    version=None,
    error_correction=qrcode.constants.ERROR_CORRECT_M,
    box_size=10,
    border=4,
)
qr.add_data(spayd)
qr.make(fit=True)

img = qr.make_image(fill_color="black", back_color="white")

# Save to file
out_path = Path(__file__).parent / f"qr_fio_{VARIABLE_SYMBOL}.png"
img.save(out_path)

print("✅ QR code generated successfully!")
print(f"SPD payload:\n{spayd}\n")
print(f"Saved as: {out_path}")

# (optional) show image when run interactively
img.show()