class MiGA::Cli::Action::Option

# File lib/miga/cli/action/option.rb, line 8
def parse_cli
  cli.parse do |opt|
    cli.opt_object(opt, %[project dataset_opt])
    opt.on(
      '-k', '--key STRING',
      'Option name to get or set (by default, all options are printed)'
    ) { |v| cli[:key] = v }
    opt.on(
      '--value STRING',
      'Value of the option to set (by default, option value is not changed)',
      'Recognized tokens: nil, true, false'
    ) { |v| cli[:value] = v }
    opt.on(
      '--about',
      'Print additional information about the values supported by this option'
    ) { |v| cli[:about] = v }
    opt.on(
      '--tab',
      'Return a tab-delimited table'
    ) { |v| cli[:tabular] = v }
    opt.on(
      '-o', '--output PATH',
      'Create output file instead of returning to STDOUT'
    ) { |v| cli[:output] = v }
  end
end

# File lib/miga/cli/action/option.rb, line 35
def perform
  unless cli[:value].nil?
    cli.ensure_par(
      { key: '-k' },
      '%<name>s is mandatory when --value is set: provide %<flag>s'
    )
  end
  obj = cli.load_project_or_dataset
  io = cli[:output].nil? ? $stdout : File.open(cli[:output], 'w')
  if cli[:key].nil?
    opts = obj.all_options
              .map { |k, v| [k, v, obj.assert_has_option(k)[:desc]] }
    cli.table(%w[Key Value Definition], opts, io)
  elsif cli[:about]
    opt = obj.assert_has_option(cli[:key])
    title = "#{cli[:key]}: #{opt[:desc]}"
    io.puts title
    io.puts '-' * title.length
    opt.each do |k, v|
      v = v[obj] if v.is_a? Proc
      io.puts "#{k.to_s.capitalize}: #{v}" unless k == :desc
    end
  else
    obj.set_option(cli[:key], cli[:value], true) unless cli[:value].nil?
    io.puts obj.option(cli[:key])
  end
  io.close unless cli[:output].nil?
end