# To add CSS
# https://github.com/Taiko2k/GTK4PythonTutorial/blob/main/README.md#adding-your-custom-css-stylesheet

import gi
gi.require_version('Gtk', '4.0')
gi.require_version('Adw', '1')
from gi.repository import Gtk, Adw

from src.book_flow import BookFlow
from src.filters import Filters
from src.book_form import BookForm
import src.utils as utils

class MainWindow(Gtk.ApplicationWindow):
    def __init__(self, resources, library, ereader, conn, *args, **kwargs):
        super().__init__(*args, **kwargs)

        utils.set_header_bar(self, 'Books')

        scrolled_window = Gtk.ScrolledWindow()
        self.set_child(scrolled_window)

        init_progress = 'Reading'

        add_book_button = Gtk.Button(label='Ajouter un livre')
        add_book_button.connect('clicked', lambda _: BookForm(self, resources, library, conn, self._filters.get_progress(), self._on_book_added).present())

        header = Gtk.Box(orientation=Gtk.Orientation.HORIZONTAL)
        utils.set_margin(header, 20)
        self._filters = Filters(init_progress, self._update_book_flow_progress)
        self._filters.set_hexpand(True)
        header.append(self._filters)
        header.append(add_book_button)

        box = Gtk.Box(orientation=Gtk.Orientation.VERTICAL, spacing=0)
        box.append(header)
        self._book_flow = BookFlow(self, resources, library, ereader, conn, init_progress, self._update_filters_progress)
        box.append(self._book_flow)
        scrolled_window.set_child(box)

    def _update_book_flow_progress(self, progress):
        self._book_flow.update_progress(progress)

    def _update_filters_progress(self, progress):
        self._filters.update_progress(progress)

    def _on_book_added(self, book_id, data):
        self._update_filters_progress(data['progress'])
        self._book_flow.add_book(book_id, data)

class Application(Adw.Application):
    def __init__(self, resources, library, ereader, conn, **kwargs):
        super().__init__(**kwargs)
        self.connect('activate', self.on_activate)

        self._resources = resources
        self._library = library
        self._ereader = ereader
        self._conn = conn

        # Dark theme
        sm = self.get_style_manager()
        sm.set_color_scheme(Adw.ColorScheme.PREFER_DARK)

    def on_activate(self, app):
        self.win = MainWindow(self._resources, self._library, self._ereader, self._conn, application=app)
        self.win.present()