module Gitlab
  module VisibilityLevelHelper
    def visibility_level_color(level)
      case level
      when Gitlab::VisibilityLevel::PRIVATE
        'vs-private'
      when Gitlab::VisibilityLevel::INTERNAL
        'vs-internal'
      when Gitlab::VisibilityLevel::PUBLIC
        'vs-public'
      end
    end

    # Return the description for the +level+ argument.
    #
    # +level+ One of the Gitlab::VisibilityLevel constants
    # +form_model+ Either a model object (Project, Snippet, etc.) or the name of
    #              a Project or Snippet class.
    def visibility_level_description(level, form_model)
      case form_model.is_a?(String) ? form_model : form_model.class.name
      when 'PersonalSnippet', 'ProjectSnippet', 'Snippet'
        snippet_visibility_level_description(level)
      when 'Project'
        project_visibility_level_description(level)
      end
    end

    def project_visibility_level_description(level)
      capture_haml do
        haml_tag :span do
          case level
          when Gitlab::VisibilityLevel::PRIVATE
            haml_concat "Project access must be granted explicitly for each user."
          when Gitlab::VisibilityLevel::INTERNAL
            haml_concat "The project can be cloned by"
            haml_concat "any logged in user."
          when Gitlab::VisibilityLevel::PUBLIC
            haml_concat "The project can be cloned"
            haml_concat "without any"
            haml_concat "authentication."
          end
        end
      end
    end

    def snippet_visibility_level_description(level)
      capture_haml do
        haml_tag :span do
          case level
          when Gitlab::VisibilityLevel::PRIVATE
            haml_concat "The snippet is visible only for me."
          when Gitlab::VisibilityLevel::INTERNAL
            haml_concat "The snippet is visible for any logged in user."
          when Gitlab::VisibilityLevel::PUBLIC
            haml_concat "The snippet can be accessed"
            haml_concat "without any"
            haml_concat "authentication."
          end
        end
      end
    end

    def visibility_level_icon(level)
      case level
      when Gitlab::VisibilityLevel::PRIVATE
        private_icon
      when Gitlab::VisibilityLevel::INTERNAL
        internal_icon
      when Gitlab::VisibilityLevel::PUBLIC
        public_icon
      end
    end

    def visibility_level_label(level)
      Project.visibility_levels.key(level)
    end

    def restricted_visibility_levels(show_all = false)
      return [] if current_user.is_admin? && !show_all
      current_application_settings.restricted_visibility_levels || []
    end

    def default_project_visibility
      current_application_settings.default_project_visibility
    end

    def default_snippet_visibility
      current_application_settings.default_snippet_visibility
    end

    def skip_level?(form_model, level)
      form_model.is_a?(Project) &&
      form_model.forked? &&
      !Gitlab::VisibilityLevel.allowed_fork_levels(form_model.forked_from_project.visibility_level).include?(level)
    end
  end
end