"""SaraTag: tag files with Books (per-file sidecars) defined by Lexicons.
The window and navigation; each page lives in its own *Page.py."""

import flet as ft

from BrowsePage import BrowsePage
from Core import (
    AppName, ApplyAppearance, AssetsDir, BuildTheme, BundledFontFamily, EffectiveSettings, IsWindows, LoadConfig, Palette,
)
from LexiconsPage import LexiconsPage
from LibrariesPage import LibrariesPage
from Library import TagCore
from RecordsPage import RecordsPage
from Settings import ShowSettingsDialog
from UpdatePage import UpdatePage
from Widgets import App

Destinations = [
    ("Browse", ft.Icons.PHOTO_LIBRARY_OUTLINED, ft.Icons.PHOTO_LIBRARY),
    ("Records", ft.Icons.FOLDER_SPECIAL_OUTLINED, ft.Icons.FOLDER_SPECIAL),
    ("Libraries", ft.Icons.COLLECTIONS_BOOKMARK_OUTLINED, ft.Icons.COLLECTIONS_BOOKMARK),
    ("Lexicons", ft.Icons.MENU_BOOK_OUTLINED, ft.Icons.MENU_BOOK),
    ("Update", ft.Icons.SYNC_OUTLINED, ft.Icons.SYNC),
]
Names = [Name for Name, _, _ in Destinations]


def Main(Page: ft.Page) -> None:
    TagCore.EnsureConfigFiles()
    Config = LoadConfig()
    Appearance = EffectiveSettings(Config)
    ApplyAppearance(Appearance)  # before anything reads Palette.X

    Page.title = AppName
    Page.theme_mode = ft.ThemeMode.DARK
    Page.theme = BuildTheme()
    Page.dark_theme = BuildTheme()
    Page.fonts = {BundledFontFamily: "fonts/Fixedsys_Excelsior_Regular.ttf"}
    Page.window.title_bar_hidden = Appearance.HideWindowTitleBar
    Page.window.icon = str(AssetsDir / "Icon.png")
    Page.padding = 0
    Page.bgcolor = Palette.Base
    Page.window.width = 1280
    Page.window.height = 820
    if IsWindows:
        Page.window.icon = str(AssetsDir / "Icon.ico")  # taskbar/title bar (Linux: the desktop entry)
    Page.window.min_width = 900
    Page.window.min_height = 560

    TheApp = App(Page, Config)
    Body = ft.Container(expand=True)
    Pages: dict[str, ft.Control] = {}
    State = {"Current": ""}

    def Navigate(Name: str, **Arguments) -> None:
        if Name not in Pages:
            return
        Previous = Pages.get(State["Current"])
        if Previous is not None:
            Previous.Leave()
        State["Current"] = Name
        Rail.selected_index = Names.index(Name)
        Body.content = Pages[Name]
        Page.update()
        Pages[Name].Refresh(**Arguments)

    TheApp.Navigate = Navigate
    Pages.update({
        "Browse": BrowsePage(TheApp),
        "Records": RecordsPage(TheApp),
        "Libraries": LibrariesPage(TheApp),
        "Lexicons": LexiconsPage(TheApp),
        "Update": UpdatePage(TheApp),
    })

    Rail = ft.NavigationRail(
        selected_index=0,
        label_type=ft.NavigationRailLabelType.ALL,
        bgcolor=Palette.Mantle,
        indicator_color=Palette.Surface0,
        min_width=88,
        destinations=[ft.NavigationRailDestination(icon=Icon, selected_icon=Selected, label=Name)
                      for Name, Icon, Selected in Destinations],
        on_change=lambda e: Navigate(Names[e.control.selected_index]),
    )
    SettingsButton = ft.IconButton(
        icon=ft.Icons.SETTINGS_OUTLINED,
        icon_color=Palette.Mauve,
        tooltip="Settings",
        # SaraTagConf.toml may have changed (hidden directories, ...), so reload the page.
        on_click=lambda e: ShowSettingsDialog(TheApp, lambda: Navigate(State["Current"])),
    )

    Page.add(ft.Column([
        ft.Container(
            content=ft.Row([
                ft.Text(AppName, size=24, color=Palette.Mauve),
                ft.Container(expand=True),
                SettingsButton,
            ]),
            padding=ft.Padding.symmetric(horizontal=16, vertical=8),
            bgcolor=Palette.Mantle,
            border=ft.Border.only(bottom=ft.BorderSide(1, Palette.Surface1)),
        ),
        ft.Row([Rail, ft.VerticalDivider(width=1, color=Palette.Surface1), Body], expand=True, spacing=0,
               vertical_alignment=ft.CrossAxisAlignment.STRETCH),
    ], expand=True, spacing=0))
    Navigate(Config.StartPage if Config.StartPage in Pages else "Browse")


if __name__ == "__main__":
    ft.run(Main, assets_dir=str(AssetsDir))