module Lookbook::Preview

def all
  ViewComponent::Preview.all.sort_by(&:label)
end

def display_params
  Lookbook.config.preview_display_params.deep_merge(lookbook_display_params)
end

def exists?(path)
  !!find(path)
end

def find(path)
  all.find { |p| p.lookbook_path == path }
end

def id
  lookbook_path.tr("/", "-").tr("_", "-")
end

def lookbook_example(example_name)
  lookbook_examples.find { |m| m.name == example_name }
end

def lookbook_examples
  return @lookbook_examples if @lookbook_examples.present?
  public_methods = public_instance_methods(false)
  public_method_objects = code_object.meths.filter { |m| public_methods.include?(m.name) }
  examples = public_method_objects.map { |m| PreviewExample.new(m.name.to_s, self) }
  sorted = Lookbook.config.sort_examples ? examples.sort_by(&:label) : examples
  @lookbook_examples = []
  if code_object.groups.any?
    sorted.group_by { |m| m.group }.each do |name, examples|
      if name.nil?
        @lookbook_examples += examples
      else
        name = lookbook_label if name.strip == ""
        @lookbook_examples << PreviewGroup.new(name.underscore, self, examples)
      end
    end
  else
    @lookbook_examples = sorted
  end
  @lookbook_examples
end

def lookbook_full_path
  base_path = Array(preview_paths).detect do |preview_path|
    Dir["#{preview_path}/#{name.underscore}.rb"].first
  end
  Pathname.new(Dir["#{base_path}/#{name.underscore}.rb"].first)
end

def lookbook_hierarchy_depth
  lookbook_path.split("/").size
end

def lookbook_id
  lookbook_path.tr("/", "-").tr("_", "-")
end

def lookbook_label
  super.presence || lookbook_path.split("/").last.titleize
end

def lookbook_layout
  defined?(@layout) ? @layout : nil
end

def lookbook_name
  name.chomp("ComponentPreview").chomp("Component::Preview").chomp("::")
end

def lookbook_parent_collections
  File.dirname(lookbook_path).split("/")
end

def lookbook_path
  lookbook_name.underscore
end

def lookbook_type
  :preview
end

def taggable_object_path
  name
end