class Pry::Command::Play

def code_object
  Pry::Code.new(content)
end

def content
  if should_use_default_file?
    file_content
  else
    @cc.content
  end
end

def content_after_options
  if opts.present?(:open)
    restrict_to_lines(content, (0..-2))
  elsif opts.present?(:expression)
    content_at_expression
  else
    content
  end
end

def content_at_expression
  code_object.expression_at(opts[:expression])
end

def default_file
  file =
    if target.respond_to?(:source_location)
      target.source_location.first
    else
      target.eval("__FILE__")
    end
  file && File.expand_path(file)
end

def file_content
  if !default_file || !File.exist?(default_file)
    raise CommandError, "File does not exist! File was: #{default_file.inspect}"
  end
  @cc.restrict_to_lines(File.read(default_file), @cc.line_range)
end

def options(opt)
  CodeCollector.inject_options(opt)
  opt.on :open, 'Plays the selected content except the last line. Useful' \
                ' for replaying methods and leaving the method definition' \
                ' "open". `amend-line` can then be used to' \
                ' modify the method.'
  opt.on :e, :expression=, 'Executes until end of valid expression', as: Integer
  opt.on :p, :print, 'Prints executed code'
end

def perform_play
  eval_string << content_after_options
  run "fix-indent"
end

def process
  @cc = CodeCollector.new(args, opts, pry_instance)
  perform_play
  show_input
end

def should_use_default_file?
  !args.first && !opts.present?(:in) && !opts.present?(:out)
end

def show_input
  return unless opts.present?(:print)
  return unless Pry::Code.complete_expression?(eval_string)
  run 'show-input'
end