module ApplicationHelper
  class TabularFormBuilder < ActionView::Helpers::FormBuilder
    (field_helpers - [:label]).each do |selector|
      class_eval <<-RUBY_EVAL, __FILE__, __LINE__ + 1
        def #{selector}(method, options = {})
          @template.content_tag :tr do
            label_text = label(method, options.delete(:label))
            label_class = @template.class_names(required: options[:required],
                                                error: @object&.errors[method].present?)

            @template.content_tag(:td, label_text, class: label_class) +
            @template.content_tag(:td, super)
          end
        end
      RUBY_EVAL
    end

    def submit(value, options = {})
      @template.content_tag :tr do
        @template.content_tag :td, super, colspan: 2
      end
    end

    def table_form_for(&block)
      @template.content_tag(:table) { yield(self) }
    end
  end

  def tabular_form_for(record, options = {}, &block)
    options.merge! builder: TabularFormBuilder
    form_for(record, **options, &-> (f) { f.table_form_for(&block) })
  end

  def image_link_to(name, image = nil, options = nil, html_options = nil)
    name = svg_tag("pictograms/#{image}.svg#icon") + name if image
    if html_options.delete(:hide)
      # NOTE: current_path? does not work for POST
      visibility = (url_for(options) == request.path) ? 'hidden' : 'visible'
      html_options.merge!(style: "visibility: #{visibility}") { |k, v1, v2| v1 + v2 }
    end
    link_to name, options, html_options
  end

  def svg_tag(source, options = {})
    image_name, id = source.split('#')
    content_tag :svg, options do
      tag.use href: "#{image_path(image_name)}##{id}"
    end
  end
end