import os

from PyQt6.QtWidgets import QButtonGroup, QLabel, QPushButton
from PyQt6.QtGui import QIcon
from PyQt6.QtCore import QSize
from PyQt6 import QtCore

from gui.v2.ui.pages.Page import Page


class CurrencySelectionPage(Page):
    def __init__(self, page_stack, main_window=None, parent=None):
        super().__init__("Select Currency", page_stack, main_window, parent)
        self.update_status = main_window
        self.selected_duration = None
        self.create_interface_elements()
        self.button_reverse.setVisible(True)
        self.button_next.setVisible(False)

    def create_interface_elements(self):
        self.title = QLabel("Payment Method", self)
        self.title.setGeometry(QtCore.QRect(510, 30, 250, 40))
        self.title.setAlignment(QtCore.Qt.AlignmentFlag.AlignCenter)
        self.button_reverse.clicked.connect(self.reverse)

        button_info = [
            ("monero", (545, 75)),
            ("bitcoin", (545, 290)),
            ("lightnering", (545, 180)),
            ("litecoin", (545, 395))
        ]

        self.buttonGroup = QButtonGroup(self)
        self.buttons = []

        for j, (icon_name, position) in enumerate(button_info):
            button = QPushButton(self)
            button.setGeometry(position[0], position[1], 185, 75)
            button.setIconSize(QSize(190, 120))
            button.setCheckable(True)
            self.buttons.append(button)
            self.buttonGroup.addButton(button, j)
            button.setIcon(
                QIcon(os.path.join(self.btn_path, f"{icon_name}.png")))
            button.clicked.connect(self.on_currency_selected)

    def on_currency_selected(self):
        self.custom_window.navigator.navigate("payment_details")
        payment_details_page = self.custom_window.navigator.get_cached("payment_details")
        if payment_details_page is not None:
            payment_details_page.selected_duration = self.selected_duration
            payment_details_page.selected_currency = self.get_selected_currency()
            payment_details_page.check_invoice()
            self.update_status.update_status('Loading payment details...')

    def get_selected_currency(self):
        selected_button = self.buttonGroup.checkedButton()
        if selected_button:
            index = self.buttonGroup.id(selected_button)
            currencies = ["monero", "bitcoin", "lightning", "litecoin"]
            return currencies[index]
        return None

    def reverse(self):
        self.custom_window.navigator.navigate("duration_selection")