# frozen_string_literal: true

module Decidim
  # This cell renders a collapsible list of a model's coauthors.
  #
  # Available sizes:
  #  - any number from 1 to 12
  #  - default value is 1
  #  - it is delegated to the `decidim/collapsible_list` cell
  #
  # Extra params:
  # - `extra_small` => boolean: when this cell is included in small places this
  #     option adds extra css ("author-data--small") to make the box smaller.
  #
  # Example:
  #
  #    cell("decidim/coauthorships", @proposal)
  class CoauthorshipsCell < Decidim::ViewModel
    include Decidim::ApplicationHelper

    def show
      if authorable?
        cell "decidim/author", presenter_for_author(model), extra_classes.merge(has_actions: has_actions?, from: model)
      else
        cell(
          "decidim/collapsible_authors",
          presenters_for_identities(model),
          cell_name: "decidim/author",
          cell_options: extra_classes,
          size: size,
          from: model,
          has_actions: has_actions?
        )
      end
    end

    private

    def official?
      model.respond_to?(:official?) && model.official?
    end

    def presenters_for_identities(coauthorable)
      coauthorable.identities.map do |identity|
        if identity.is_a?(Decidim::Organization)
          "#{model.class.parent}::OfficialAuthorPresenter".constantize.new
        else
          present(identity)
        end
      end
    end

    def presenter_for_author(authorable)
      if official?
        "#{model.class.parent}::OfficialAuthorPresenter".constantize.new
      elsif authorable.user_group
        Decidim::UserGroupPresenter.new(authorable.user_group)
      elsif authorable.author.is_a?(Decidim::User)
        Decidim::UserPresenter.new(authorable.author)
      elsif authorable.author.is_a?(Decidim::Meeting)
        Decidim::MeetingPresenter.new(authorable.author)
      end
    end

    def authorable?
      model.is_a?(Decidim::Authorable)
    end

    def has_actions?
      options[:has_actions] == true
    end

    def extra_classes
      if options[:extra_small]
        { extra_classes: ["author-data--small"] }
      else
        {}
      end
    end

    def size
      options[:size] || 1
    end
  end
end