module Playbook::PbDocHelper

def get_class_name(kit)
  folder = is_subkit?(kit) ? pb_camelize(kit.split("/")[0]) : pb_camelize(kit)
  item = is_subkit?(kit) ? pb_camelize(kit.split("/")[-1]) : pb_camelize(kit)
  "Playbook::Pb#{folder}::#{item}".safe_constantize
end

def get_kit_examples(kit, type)
  example_file = File.join(Playbook::Engine.root,
                           "app", "pb_kits", "playbook", "pb_#{kit}", "docs", "example.yml")
  if File.exist? example_file
    examples_list = YAML.load_file(example_file)
    examples_list = examples_list.inject({}) { |item, (k, v)| item[k.to_sym] = v; item }
    all_kit_examples = {}
    all_kit_examples[:kit] = kit
    all_kit_examples[:examples] = examples_list[:examples][type]
    return all_kit_examples
  else
    return {}
  end
end

def has_kit_type?(kit, type)
  type ||= "rails"
  if type == "rails"
    return Dir["playbook/pb_#{kit}/*.html.erb"].empty?
  elsif type == "react"
    return Dir["playbook/pb_#{kit}/*.jsx"].empty?
  end
end

def pb_kit(kit: "", type: "rails")
  @type = type
  @kit_examples = get_kit_examples(kit, type)
  render partial: "playbook/config/kit_example"
end

def pb_kit_api(kit)
  kit_class_obj = get_class_name(kit)
  @kit_api = kit_class_obj.instance_method(:initialize).parameters.map(&:last)
  render partial: "playbook/config/pb_kit_api"
end

def pb_kit_title(title)
  title.remove("pb_").titleize.tr("_", " ")
end

def pb_kits(type: "rails")
  display_kits = []
  MENU["kits"].sort.each do |kit|
    title = render_clickable_title(kit)
    ui = raw("<div class='pb--docItem-ui'>
        #{pb_kit(kit: kit, type: type)}</div>")
    display_kits << title + ui
  end
  raw("<div class='pb--docItem'>" + display_kits.join("</div><div class='pb--docItem'>") + "</div>")
end

def render_clickable_title(kit)
  render inline: "<a href='#{kit_show_path(kit)}'>
      #{pb_rails(:title, props: { text: pb_kit_title(kit),
                                  tag: 'h3', size: '2' })}</a>"
end