from PySide6.QtGui import QFocusEvent
from PySide6.QtWidgets import QListWidget, QListWidgetItem
from PySide6.QtCore import Qt

from codes.common import clibs
from codes.common.signal_bus import signal_bus
from codes.common.qss_reloader import qss_reloader


class SListWidget(QListWidget):
    def __init__(self, parent=None):
        super().__init__(parent)

        self.pre_do()
        self.init_ui()
        self.post_do()

    def pre_do(self):
        ...

    def init_ui(self):
        self.setObjectName("SListWidget")
        self.setMinimumWidth(150)
        for item in clibs.listW_items:
            _ = QListWidgetItem(item)
            _.setTextAlignment(Qt.AlignmentFlag.AlignCenter)
            self.addItem(_)

    def post_do(self):
        qss_reloader.register(clibs.qss_list_widget, self)
        self.setup_slot()

    def setup_slot(self):
        self.itemClicked.connect(self.item_clicked)
        signal_bus.stacked_page_switch_setting.connect(self.qa_hide)
        signal_bus.stacked_page_switch_log.connect(self.qa_hide)
        signal_bus.stacked_page_switch_about.connect(self.qa_hide)
        signal_bus.list_widget_on_off.connect(self.lw_show_hide)

    def item_clicked(self, item):
        page_id = clibs.listW_items[item.text()]
        signal_bus.list_widget_click.emit(page_id)

    def lw_show_hide(self, enabled: bool):
        if enabled:
            self.clearSelection()
            self.show()
            signal_bus.init_stacked_page.emit("w10_practical")
        else:
            self.hide()

    def qa_hide(self):
        self.hide()
        signal_bus.qa_switch_change.emit(False)

    def focusOutEvent(self, event: QFocusEvent):
        self.clearSelection()
        super().focusOutEvent(event)