import os

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

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


class ProtocolPage(Page):
    SINGBOX_PROTOCOLS = ("hysteria2", "vless")
    PROTOCOL_BUTTON_ASSETS = {
        "hysteria2": "hystria2",
    }

    def __init__(self, page_stack, main_window=None, parent=None):
        super().__init__("Protocol", page_stack, main_window, parent)
        self.main_window = main_window
        self.selected_protocol = None
        self.btn_path = main_window.btn_path
        self.selected_protocol_icon = None
        self.connection_manager = main_window.connection_manager
        self.button_back.setVisible(True)
        self.update_status = main_window
        self.button_go.clicked.connect(self.go_selected)
        self.coming_soon_label = QLabel("Coming soon", self)
        self.coming_soon_label.setGeometry(210, 50, 200, 40)
        self.coming_soon_label.setStyleSheet("font-size: 22px;")

        self.coming_soon_label.setVisible(False)
        self.title.setGeometry(585, 40, 185, 40)
        self.title.setText("Pick a Protocol")
        self.display.setGeometry(QtCore.QRect(0, 50, 580, 435))
        self.create_interface_elements()
        if self.connection_manager.is_synced():
            self.enable_protocol_buttons()

    def create_interface_elements(self):
        self.buttonGroup = QButtonGroup(self)
        self.buttons = []
        self.selected_page_name = None
        for j, (object_type, icon_name, page_name, geometry) in enumerate([
            (QPushButton, "wireguard", "wireguard", (585, 80, 185, 75)),
            (QPushButton, "hysteria2", "location", (585, 160, 185, 75)),
            (QPushButton, "vless", "location", (585, 240, 185, 75)),
            (QPushButton, "residential", "residential", (585, 320, 185, 75)),
            (QPushButton, "hidetor", "hidetor", (585, 400, 185, 75))
        ]):
            boton = object_type(self)
            boton.setGeometry(*geometry)
            boton.setIconSize(boton.size())
            boton.setCheckable(True)
            boton.setDisabled(True)
            boton.setIcon(
                QIcon(self._button_asset(icon_name)))
            self.buttons.append(boton)
            self.buttonGroup.addButton(boton, j)
            boton.clicked.connect(
                lambda _, name=page_name, protocol=icon_name: self.show_protocol(name, protocol))

    def _button_asset(self, protocol):
        asset_name = self.PROTOCOL_BUTTON_ASSETS.get(protocol, protocol)
        return os.path.join(self.btn_path, f"{asset_name}_button.png")

    def _display_asset(self, protocol):
        full_size_path = os.path.join(self.btn_path, f"{protocol}.png")
        if os.path.exists(full_size_path):
            return full_size_path
        return self._button_asset(protocol)

    def enable_protocol_buttons(self):
        for button in self.buttons:
            button.setDisabled(False)

    def update_swarp_json(self):
        data = {"protocol": self.selected_protocol_icon}
        if self.selected_protocol_icon in self.SINGBOX_PROTOCOLS:
            data["connection"] = "system-wide"
        self.update_status.write_data(data)

    def show_protocol(self, page_name, protocol):
        self.update_status.clear_data()
        self.display.setPixmap(QPixmap(self._display_asset(protocol)).scaled(
            self.display.size(), Qt.AspectRatioMode.KeepAspectRatio))
        self.selected_protocol_icon = protocol
        self.selected_page_name = page_name

        if protocol in ["wireguard", "hidetor", *self.SINGBOX_PROTOCOLS]:
            self.button_go.setVisible(True)
            self.coming_soon_label.setVisible(False)
        else:
            self.button_go.setVisible(False)
            self.coming_soon_label.setVisible(True)
        self.update_swarp_json()

    def go_selected(self):
        if self.selected_page_name:
            self.custom_window.navigator.navigate(self.selected_page_name)
            self.display.clear()
            for boton in self.buttons:
                boton.setChecked(False)
            self.button_go.setVisible(False)

    def find_menu_page(self):
        return self.custom_window.navigator.get_cached("menu")