# frozen_string_literal: true

require "gtk3"

module WaitUp
  # Main Wait Up application class
  class Application
    def initialize
      setup_gui
      connect_signals
      @win.show_all
    end

    private

    def connect_signals
      connect_key_press_event_signal
      connect_destroy_signal
      connect_slide_signal
      connect_file_chooser_signal
    end

    def connect_destroy_signal
      @win.signal_connect("destroy") { Gtk.main_quit }
    end

    def connect_key_press_event_signal
      @win.signal_connect "key-press-event" do |_wdg, evt, _ud|
        handle_key(evt) if evt.state.control_mask?
        false
      end
    end

    def handle_key(evt)
      case evt.keyval
      when "q".ord
        @win.destroy
      end
    end

    def connect_slide_signal
      timeline.signal_connect "format-value" do |_scale, value, _user_data|
        ">#{value}<"
      end
    end

    def connect_file_chooser_signal
      chooser.signal_connect "file-set" do |_widget, _user_data|
        puts chooser.filename
      end
    end

    def setup_gui
      @win = Gtk::Window.new :toplevel
      @win.add grid
    end

    def grid
      @grid ||=
        Gtk::Grid.new.tap do |grid|
          grid.orientation = :vertical
          grid.add chooser
          grid.add timeline
          grid.add Gtk::VolumeButton.new
        end
    end

    def timeline
      @timeline ||=
        Gtk::Scale.new(:horizontal, 0.0, 10.0, 0.1).tap do |it|
          it.hexpand = true
        end
    end

    def chooser
      @chooser ||= Gtk::FileChooserButton.new("Hello!", :open)
    end
  end
end