# frozen_string_literal: true

class DiscoverController < ApplicationController
  before_action :authenticate_user!

  def index
    return redirect_to root_path unless APP_CONFIG.dig(:features, :discover, :enabled) || current_user.mod?

    top_x = 10 # only display the top X items
    week_ago = Time.now.utc.ago(1.week)

    @popular_answers = Answer.for_user(current_user).where("created_at > ?", week_ago).order(:smile_count).reverse_order.limit(top_x).includes(:question, :user, :comments)
    @most_discussed = Answer.for_user(current_user).where("created_at > ?", week_ago).order(:comment_count).reverse_order.limit(top_x).includes(:question, :user, :comments)
    @popular_questions = Question.where("created_at > ?", week_ago).order(:answer_count).reverse_order.limit(top_x).includes(:user)
    @new_users = User.where("asked_count > 0").order(:id).reverse_order.limit(top_x).includes(:profile)

    # .user = the user
    # .question_count = how many questions did the user ask
    @users_with_most_questions = Question.select("user_id, COUNT(*) AS question_count")
                                         .where("created_at > ?", week_ago)
                                         .where(author_is_anonymous: false)
                                         .group(:user_id)
                                         .order("question_count")
                                         .reverse_order.limit(top_x)

    # .user = the user
    # .answer_count = how many questions did the user answer
    @users_with_most_answers = Answer.select("user_id, COUNT(*) AS answer_count")
                                     .where("created_at > ?", week_ago)
                                     .group(:user_id)
                                     .order("answer_count")
                                     .reverse_order.limit(top_x)
  end
end