class Hiiro::Tmux::Windows

def self.fetch(session: nil, all: false)
  args = ['tmux', 'list-windows', '-F', Window::FORMAT]
  args << '-a' if all
  args += ['-t', session] if session && !all
  output = `#{args.shelljoin} 2>/dev/null`
  return new([]) if output.nil? || output.empty?
  windows = output.each_line.map { |line| Window.from_format_line(line) }.compact
  new(windows)
end

def active
  self.class.new(windows.select(&:active?))
end

def each(&block)
  windows.each(&block)
end

def empty?
  windows.empty?
end

def find_by_id(id)
  windows.find { |w| w.id == id }
end

def find_by_index(index)
  windows.find { |w| w.index == index }
end

def find_by_name(name)
  windows.find { |w| w.name == name }
end

def in_session(session_name)
  self.class.new(windows.select { |w| w.session_name == session_name })
end

def initialize(windows)
  @windows = windows
end

def name_map
  windows.each_with_object({}) do |window, h|
    h[window.to_s] = window.target
  end
end

def names
  windows.map(&:name)
end

def size
  windows.size
end

def targets
  windows.map(&:target)
end