from ignis.widgets import Widget
from ignis.app import IgnisApp
from ignis.utils import Utils
from ignis.services.notifications import Notification, NotificationService
from ..shared_widgets import NotificationWidget


app = IgnisApp.get_default()

notifications = NotificationService.get_default()


class Popup(Widget.Box):
    def __init__(
        self, box: "PopupBox", window: "NotificationPopup", notification: Notification
    ):
        self._box = box
        self._window = window

        widget = NotificationWidget(notification)
        widget.css_classes = ["notification-popup"]
        self._inner = Widget.Revealer(transition_type="slide_left", child=widget)
        self._outer = Widget.Revealer(transition_type="slide_down", child=self._inner)
        super().__init__(child=[self._outer], halign="end")

        notification.connect("dismissed", lambda x: self.destroy())

    def destroy(self):
        def box_destroy():
            self.unparent()
            if len(notifications.popups) == 0:
                self._window.visible = False

        def outer_close():
            self._outer.reveal_child = False
            Utils.Timeout(self._outer.transition_duration, box_destroy)

        self._inner.transition_type = "crossfade"
        self._inner.reveal_child = False
        Utils.Timeout(self._outer.transition_duration, outer_close)


class PopupBox(Widget.Box):
    def __init__(self, window: "NotificationPopup", monitor: int):
        self._window = window
        self._monitor = monitor

        super().__init__(
            vertical=True,
            valign="start",
            setup=lambda self: notifications.connect(
                "new_popup",
                lambda x, notification: self.__on_notified(notification),
            ),
        )

    def __on_notified(self, notification: Notification) -> None:
        self._window.visible = True
        popup = Popup(box=self, window=self._window, notification=notification)
        self.prepend(popup)
        popup._outer.reveal_child = True
        Utils.Timeout(
            popup._outer.transition_duration, popup._inner.set_reveal_child, True
        )


class NotificationPopup(Widget.Window):
    def __init__(self, monitor: int):
        super().__init__(
            anchor=["right", "top", "bottom"],
            monitor=monitor,
            namespace=f"ignis_NOTIFICATION_POPUP_{monitor}",
            layer="top",
            child=PopupBox(window=self, monitor=monitor),
            visible=False,
            dynamic_input_region=True,
            css_classes=["rec-unset"],
            style="min-width: 29rem;",
        )