class Ollama::Handlers::Progress

def call(response)
  infobar.display.output = @output
  if status = response.status
    infobar.label = status
  end
  if response.total && response.completed
    if !@last_status or @last_status != status
      @last_status and infobar.newline
      @last_status = status
      @current = 0
      @total = response.total
      infobar.counter.reset(total: @total, current: @current)
    end
    infobar.counter.progress(by: response.completed - @current)
    @current = response.completed
    infobar.update(
      message: message(response.completed, response.total),
      force: true
    )
  end
  if error = response.error
    infobar.puts bold { "Error: " } + red { error }
  end
  self
end

def initialize(output: $stdout)
  super
  @current     = 0
  @total       = nil
  @last_status = nil
end

def message(current, total)
  progress = '%s/%s' % [ current, total ].map {
    Tins::Unit.format(_1, format: '%.2f %U')
  }
  '%l ' + progress + ' in %te, ETA %e @%E'
end