class Pry::Output

def actual_screen_size
  # The best way, if possible (requires non-jruby >=1.9 or io-console gem).
  io_console_size ||
    # Fall back to the old standby, though it might be stale.
    env_size ||
    # Fall further back, though this one is also out of date without
    # something calling Readline.set_screen_size.
    readline_size ||
    # Windows users can otherwise run ansicon and get a decent answer.
    ansicon_env_size
end

def ansicon_env_size
  return unless Pry::Env['ANSICON'] =~ /\((.*)x(.*)\)/
  size = [Regexp.last_match(2), Regexp.last_match(1)]
  size if nonzero_column?(size)
end

def decolorize_maybe(str)
  return str if @color
  Pry::Helpers::Text.strip_color(str)
end

def env_size
  size = [Pry::Env['LINES'] || Pry::Env['ROWS'], Pry::Env['COLUMNS']]
  size if nonzero_column?(size)
end

def height
  size.first
end

def initialize(pry_instance)
  @output = pry_instance.config.output
  @color = pry_instance.config.color
end

def io_console_size
  return if Pry::Helpers::Platform.jruby?
  begin
    require 'io/console'
    begin
      @output.winsize if tty? && @output.respond_to?(:winsize)
    rescue Errno::EOPNOTSUPP # rubocop:disable Lint/HandleExceptions
      # Output is probably a socket, which doesn't support #winsize.
    end
  rescue LoadError # rubocop:disable Lint/HandleExceptions
    # They probably don't have the io/console stdlib or the io-console gem.
    # We'll keep trying.
  end
end

def method_missing(method_name, *args, &block)
  if @output.respond_to?(method_name)
    @output.__send__(method_name, *args, &block)
  else
    super
  end
end

def nonzero_column?(size)
  size[1].to_i > 0
end

def print(*objs)
  objs.each do |obj|
    @output.print decolorize_maybe(obj.to_s)
  end
  nil
end

def puts(*objs)
  return print "\n" if objs.empty?
  objs.each do |obj|
    if (ary = Array.try_convert(obj))
      puts(*ary)
    else
      print "#{obj.to_s.chomp}\n"
    end
  end
  nil
end

def readline_size
  return unless defined?(Readline) && Readline.respond_to?(:get_screen_size)
  size = Readline.get_screen_size
  size if nonzero_column?(size)
rescue Java::JavaLang::NullPointerException
  # This rescue won't happen on jrubies later than:
  #     https://github.com/jruby/jruby/pull/436
  nil
end

def respond_to_missing?(method_name, include_private = false)
  @output.respond_to?(method_name, include_private)
end

def size
  rows, cols = actual_screen_size
  return [rows.to_i, cols.to_i] if rows.to_i != 0 && cols.to_i != 0
  DEFAULT_SIZE
end

def tty?
  @output.respond_to?(:tty?) && @output.tty?
end

def width
  size.last
end