class Pry::Command::Gist

def clipboard_content(content)
  ::Gist.copy(content)
  output.puts "Copied content to clipboard!"
end

def comment_expression_result_for_gist(result)
  content = ""
  result.lines.each_with_index do |line, index|
    if index == 0
      content << "# => #{line}"
    else
      content << "#    #{line}"
    end
  end
  content
end

def gist_content(content, filename)
  response = ::Gist.gist(content, filename: filename || "pry_gist.rb", public: !!opts[:p])
  if response
    url = response['html_url']
    message = "Gist created at URL #{url}"
    begin
      ::Gist.copy(url)
      message << ", which is now in the clipboard."
    rescue ::Gist::ClipboardError
    end
    output.puts message
  end
end

def input_content
  content = ""
  CodeCollector.input_expression_ranges.each do |range|
    input_expressions = _pry_.input_ring[range] || []
    Array(input_expressions).each_with_index do |code, index|
      corrected_index = index + range.first
      if code && code != ""
        content << code
        if code !~ /;\Z/
          content << "#{comment_expression_result_for_gist(_pry_.config.gist.inspecter.call(_pry_.output_ring[corrected_index]))}"
        end
      end
    end
  end
  content
end

def options(opt)
  CodeCollector.inject_options(opt)
  opt.on :login, "Authenticate the gist gem with GitHub"
  opt.on :p, :public, "Create a public gist (default: false)", default: false
  opt.on :clip, "Copy the selected content to clipboard instead, do NOT gist it", default: false
end

def process
  return ::Gist.login! if opts.present?(:login)
  cc = CodeCollector.new(args, opts, _pry_)
  if cc.content =~ /\A\s*\z/
    raise CommandError, "Found no code to gist."
  end
  if opts.present?(:clip)
    clipboard_content(cc.content)
  else
    # we're overriding the default behavior of the 'in' option (as
    # defined on CodeCollector) with our local behaviour.
    content = opts.present?(:in) ? input_content : cc.content
    gist_content content, cc.file
  end
end

def setup
  require 'gist'
end