"""应用与主窗口装配。

本文件只负责把窗口、导航和页面拼起来，不写业务逻辑。

改动本文件前必读 `client/AGENTS.md`。以下几条最容易踩：

- 图标一律用 `FluentIcon`，**不得使用表情符号充当图标**。
- 不得在这里发起 Admin 请求、SQLite 长查询或 uiautomator2 调用，
  这些会卡死 Qt 主线程。业务事件放到各页面的 `*_ui_event.py`。
- 页面的 `objectName` 必须唯一且稳定，改名会破坏导航。
- 用布局和伸缩项排版，**不要用固定坐标**。
- 不要用全局 QSS 覆盖 Fluent 控件；局部样式必须保留悬停、按下、
  焦点和禁用四种状态。
- 需要文件路径时走 `data_dir()` / `app_dir()`，不要硬编码，
  见 `docs/client/03-data-model.md` §2.2。
"""

import sys

from PyQt5.QtCore import Qt, QTimer
from PyQt5.QtWidgets import QApplication
from qfluentwidgets import (
    FluentIcon as FIF,
    FluentWindow,
    MessageBox,
    NavigationItemPosition,
    Theme,
    setTheme,
)

from .adb_runtime import BundledAdbError, configure_bundled_adb_environment
from .pdd_ui import PDDTaskPage
from .pdd_ui_event import PDDTaskPageEvent
from .pdd_u2_purchase_adapter import (
    create_u2_live_purchase_adapter,
    create_u2_purchase_adapter,
)
from .pdd_u2_purchase_reconcile_adapter import (
    create_u2_purchase_reconcile_adapter,
)
from .settings_ui import SettingsPage
from .task_repository import TaskRepository
from .update_service import mark_current_version_healthy


class MainWindow(FluentWindow):
    """应用主窗口。"""

    def __init__(
        self,
        task_repository=None,
        settings_repository=None,
        admin_gateway=None,
    ):
        super().__init__()

        self.pddTaskPage = PDDTaskPage(self)
        self.settingsPage = SettingsPage(
            self,
            settings_repository=settings_repository,
            admin_gateway=admin_gateway,
            live_purchase_adapter_ready=True,
        )
        self.pddTaskPageEvent = PDDTaskPageEvent(
            self.pddTaskPage,
            task_repository or TaskRepository(),
            self,
            claim_gateway=admin_gateway,
            settings_repository=settings_repository,
            purchase_adapter_factory=create_u2_purchase_adapter,
            live_purchase_adapter_factory=create_u2_live_purchase_adapter,
            purchase_reconcile_factory=create_u2_purchase_reconcile_adapter,
        )

        self.pddTaskPage.openSettingsRequested.connect(
            lambda: self.switchTo(self.settingsPage)
        )
        self.settingsPage.eventBinder.androidDeviceConfigurationChanged.connect(
            self.pddTaskPageEvent.android_device_configuration_changed
        )
        self.settingsPage.eventBinder.adminBaseUrlChanged.connect(
            self.pddTaskPageEvent.update_admin_base_url
        )
        self.addSubInterface(self.pddTaskPage, FIF.HOME, "pdd")
        self.settingsNavigationItem = self.addSubInterface(
            self.settingsPage,
            FIF.SETTING,
            "设置",
            NavigationItemPosition.BOTTOM,
        )
        self._settings_navigation_text = self.settingsNavigationItem.text()
        self._settings_navigation_light_color = (
            self.settingsNavigationItem.lightTextColor
        )
        self._settings_navigation_dark_color = (
            self.settingsNavigationItem.darkTextColor
        )
        self.settingsPage.eventBinder.updateEventBinder.updateAvailabilityChanged.connect(
            self._set_update_navigation_reminder
        )

        self.setWindowTitle("采集采购工具")
        self.setMinimumSize(820, 560)
        self.resize(1040, 680)
        self._moveToScreenCenter()
        self.pddTaskPageEvent.load_initial_tasks()

    def _set_update_navigation_reminder(
        self,
        available: bool,
        current_version: str,
        latest_version: str,
    ) -> None:
        """用颜色和文字共同提醒更新，不让提示只依赖颜色。"""

        if available:
            self.settingsNavigationItem.setText(
                f"{self._settings_navigation_text}（有更新）"
            )
            self.settingsNavigationItem.setTextColor("#B45309", "#FBBF24")
            self.settingsNavigationItem.setToolTip(
                f"发现新版本 {latest_version}，当前版本 {current_version}"
            )
            return

        self.settingsNavigationItem.setText(self._settings_navigation_text)
        self.settingsNavigationItem.setTextColor(
            self._settings_navigation_light_color,
            self._settings_navigation_dark_color,
        )
        self.settingsNavigationItem.setToolTip(self._settings_navigation_text)

    def _moveToScreenCenter(self):
        screen = QApplication.primaryScreen()
        if screen is None:
            return

        frame = self.frameGeometry()
        frame.moveCenter(screen.availableGeometry().center())
        self.move(frame.topLeft())


def ui_main():
    """启动桌面应用。"""

    QApplication.setAttribute(Qt.AA_EnableHighDpiScaling)
    QApplication.setAttribute(Qt.AA_UseHighDpiPixmaps)

    app = QApplication(sys.argv)
    setTheme(Theme.AUTO)

    adb_error = ""
    try:
        configure_bundled_adb_environment()
    except BundledAdbError as exc:
        adb_error = str(exc)

    window = MainWindow()
    window.showMaximized()
    if adb_error:
        QTimer.singleShot(
            0,
            lambda: _show_adb_missing_dialog(window, adb_error),
        )
    try:
        mark_current_version_healthy()
    except OSError:
        # 健康标记失败不能让界面崩溃；Launcher 会保留旧版本并在下次启动恢复。
        pass
    return app.exec_()


def _show_adb_missing_dialog(parent: MainWindow, message: str) -> None:
    """在主窗口中央提示内置 ADB 缺失，用户可用大按钮关闭。"""

    dialog = MessageBox("Android 调试组件缺失", message, parent)
    dialog.yesButton.setText("知道了")
    dialog.yesButton.setMinimumSize(120, 40)
    dialog.cancelButton.hide()
    dialog.exec()


if __name__ == "__main__":
    sys.exit(ui_main())