# -*- coding: utf-8 -*-
# gui/components/dialog.py

"""Каноническая dialog-обёртка проекта."""

from __future__ import annotations

from PySide6.QtCore import Slot
from PySide6.QtWidgets import QDialog, QVBoxLayout

from gui.containers import VContainer
from gui.containers._widget_style_service import WidgetStyleService
from gui.theme_bus import theme_bus


class Dialog(QDialog):
    """Базовая stylable-обёртка над QDialog с корневым VContainer."""

    def __init__(
        self,
        title: str = "",
        width: int | None = None,
        height: int | None = None,
        modal: bool = True,
        content_margin: int | tuple[int, int, int, int] = 0,
        content_spacing: int = 0,
        style: str = "DIALOG",
        parent=None,
    ):
        super().__init__(parent)

        # Зависимости
        self._style_service = WidgetStyleService(self)

        # Ссылки на ключевые виджеты
        self._content_container: VContainer | None = None

        # Визуальная настройка
        self.setModal(bool(modal))
        if title:
            self.setWindowTitle(title)
        if width is not None and height is not None:
            self.resize(width, height)

        # Сборка и подключение
        self._build_root(content_margin, content_spacing)
        self._connect_base_signals()

        # Первичная синхронизация стиля
        self.style(style)

    # ── Сборка интерфейса ────────────────────────────────────────

    def _build_root(
        self,
        content_margin: int | tuple[int, int, int, int],
        content_spacing: int,
    ) -> None:
        self._content_container = VContainer(
            margin=content_margin,
            spacing=content_spacing,
        )

        root_layout = QVBoxLayout(self)
        root_layout.setContentsMargins(0, 0, 0, 0)
        root_layout.setSpacing(0)
        root_layout.addWidget(self._content_container)

    # ── Подключение сигналов ─────────────────────────────────────

    def _connect_base_signals(self) -> None:
        theme_bus.theme_changed.connect(self.set_theme)

    # ── Публичный API ────────────────────────────────────────────

    @property
    def content_container(self) -> VContainer:
        return self._content_container

    def add_widget(self, widget) -> None:
        self._content_container.add_widget(widget)

    def add_stretch(self, stretch: int = 1) -> None:
        self._content_container.add_stretch(stretch)

    def style(
        self,
        style_key: str | None = None,
        active_key: str | None = None,
        is_active: bool | None = None,
    ) -> None:
        self._style_service.apply(
            style_key=style_key,
            active_key=active_key,
            is_active=is_active,
        )

    # ── Обработчики событий ──────────────────────────────────────

    @Slot(str)
    def set_theme(self, theme: str) -> None:
        self._style_service.handle_theme_changed(theme)