class ModerationsController < ApplicationController
  after_action :verify_authorized

  def index
    skip_authorization
    return unless current_user&.trusted

    @articles = Article.published.
      where("score > -5 AND score < 5").
      order("published_at DESC").limit(70)
    @articles = @articles.cached_tagged_with(params[:tag]) if params[:tag].present?
    @articles = @articles.where("nth_published_by_author > 0 AND nth_published_by_author < 4 AND published_at > ?", 7.days.ago) if params[:state] == "new-authors"
    @articles = @articles.decorate
    @tag = Tag.find_by(name: params[:tag]) || not_found if params[:tag].present?
  end

  def article
    load_article
    render template: "moderations/mod"
  end

  def comment
    authorize(User, :moderation_routes?)
    @moderatable = Comment.find(params[:id_code].to_i(26))
    render template: "moderations/mod"
  end

  def actions_panel
    load_article
    tag_mod_tag_ids = @tag_moderator_tags.pluck(:id)
    has_room_for_tags = @moderatable.tag_list.size < 4
    has_no_relevant_adjustments = @adjustments.pluck(:tag_id).intersection(tag_mod_tag_ids).size.zero?
    can_be_adjusted = @moderatable.tags.pluck(:id).intersection(tag_mod_tag_ids).size.positive?

    @should_show_adjust_tags = tag_mod_tag_ids.size.positive? && ((has_room_for_tags && has_no_relevant_adjustments) || (!has_room_for_tags && has_no_relevant_adjustments && can_be_adjusted))

    render template: "moderations/actions_panel"
  end

  private

  def load_article
    authorize(User, :moderation_routes?)
    @tag_adjustment = TagAdjustment.new
    @moderatable = Article.find_by(slug: params[:slug])
    not_found unless @moderatable
    @tag_moderator_tags = Tag.with_role(:tag_moderator, current_user)
    @adjustments = TagAdjustment.where(article_id: @moderatable.id)
    @already_adjusted_tags = @adjustments.map(&:tag_name).join(", ")
    @allowed_to_adjust = @moderatable.class.name == "Article" && (current_user.has_role?(:super_admin) || @tag_moderator_tags.any?)
    @hidden_comments = @moderatable.comments.where(hidden_by_commentable_user: true)
  end
end