class MiGA::Cli::Action::Ls

# File lib/miga/cli/action/ls.rb, line 6
def parse_cli
  cli.defaults = { info: false, processing: false, silent: false }
  cli.parse do |opt|
    cli.opt_object(opt, [:project, :dataset_opt])
    cli.opt_filter_datasets(opt)
    opt.on(
      '-i', '--info',
      'Print additional information on each dataset'
    ) { |v| cli[:info] = v }
    opt.on(
      '-p', '--processing',
      'Print information on processing advance'
    ) { |v| cli[:processing] = v }
    opt.on(
      '-t', '--task-status',
      'Print the status of each processing step'
    ) { |v| cli[:taskstatus] = v }
    opt.on(
      '-m', '--metadata STRING',
      'Print name and metadata field only',
      'If set, ignores --info and forces --tab (without header)'
    ) { |v| cli[:datum] = v }
    opt.on(
      '-f', '--fields STR1,STR2,STR3', Array,
      'Comma-delimited metadata fields to print'
    ) { |v| cli[:fields] = 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 }
    opt.on(
      '-s', '--silent',
      'No output and exit with non-zero status if the dataset list is empty'
    ) { |v| cli[:silent] = v }
    opt.on(
      '--exec CMD',
      'Command to execute per dataset, with the following token variables:',
      '~ {{dataset}}: Name of the dataset',
      '~ {{project}}: Path to the project'
    ) { |v| cli[:exec] = v }
  end
end

# File lib/miga/cli/action/ls.rb, line 53
def perform
  ds = cli.load_and_filter_datasets(cli[:silent])
  p  = cli.load_project
  exit(ds.empty? ? 1 : 0) if cli[:silent]

  head = nil
  fun  = nil
  if cli[:datum]
    cli[:tabular] = true
    head = [nil, nil]
    fun  = proc { |d| [d.name, d.metadata[cli[:datum]]] }
  elsif cli[:fields]
    head = [:name] + cli[:fields]
    fun  = proc { |d| [d.name] + cli[:fields].map { |f| d.metadata[f] } }
  elsif cli[:info]
    head = Dataset.INFO_FIELDS
    fun  = proc(&:info)
  elsif cli[:processing]
    head = [:name] + MiGA::Dataset.PREPROCESSING_TASKS
    fun  = proc do |d|
      [d.name] + d.profile_advance.map { |i| %w[- done queued][i] }
    end
  elsif cli[:taskstatus]
    head = [:name] + MiGA::Dataset.PREPROCESSING_TASKS
    fun  = proc { |d| [d.name] + d.results_status.values }
  else
    cli[:tabular] = true
    head = [nil]
    fun  = proc { |d| [d.name] }
  end

  format_table(ds, head) do |d|
    if cli[:exec]
      MiGA::MiGA.run_cmd(
        cli[:exec].miga_variables(dataset: d.name, project: p.path)
      )
    end
    fun[d]
  end
end