class Window < Node
  attr_accessor :window_id, :x, :y, :width, :height, :state, :floating, :workspace

  def initialize(window_id, workspace)
    @workspace = workspace
    @window_id = window_id
    @name = X.get_wm_name(window_id)
    @wm_n_hints = X.get_wm_n_hints(window_id)
    @floating = false
    if @wm_n_hints
      if fixed_size_or_aspect?(@wm_n_hints)
        @floating = true
        @width = @wm_n_hints[:max_width]
        if @wm_n_hints[:flags] & 128 != 0
          @height = @wm_n_hints[:max_width] * (@wm_n_hints[:min_aspect_num] / @wm_n_hints[:min_aspect_den])
        else
          @height = @wm_n_hints[:max_height]
        end
        @x = @workspace.width / 2 - @width / 2
        @y = @workspace.height / 2 - @height / 2
        apply_geometry!
      end
    end
    @wm_hints = X.get_wm_hints(window_id)
    if @wm_hints
      if @wm_hints[:flags] & 1 != 0 && @wm_hints[:initial_state] == 3
        X.set_wm_state window_id, 1
      end
    end
    @transient_for = X.get_wm_transient_for(window_id)
    @floating = true unless @transient_for.zero?
    super()
  end

  def delete
    @workspace.remove self
  end

  def each_leaf(&block)
    block.call(self)
  end

  def move(x, y)
    return unless @floating
    @x, @y = x, y
    apply_geometry!
  end

  def resize(width, height)
    return unless @floating
    @x = @workspace.width / 2 - width / 2
    @y = @workspace.height / 2 - height / 2
    @width, @height = width, height
    apply_geometry!
  end

  def apply_geometry!
    X.move_window @window_id, @x, @y
    X.resize_window @window_id, @width, @height
  end
end