"""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, 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
    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))