class ContestsController < ApplicationController
  before_action :set_contest, only: %i[ destroy edit show update ]

  def index
    authorize :contest

    @contests = current_user.contests
    @title = "Welcome #{current_user.username}!"
  end

  def show
    authorize @contest

    @title = @contest.name
    @contestants = @contest.contestants.order(:name)
    @puzzles = @contest.puzzles.order(:id)
    set_badges
  end

  def edit
    authorize @contest

    @title = "Edit contest settings"
  end

  def new
    authorize :contest

    @contest = Contest.new
    @title = "New jigsaw puzzle competition"
  end

  def create
    authorize :contest

    @contest = Contest.new(contest_params)
    @contest.user_id = current_user.id
    if @contest.save
      redirect_to @contest
    else
      render :new, status: :unprocessable_entity
    end
  end

  def update
    authorize @contest

    if @contest.update(contest_params)
      redirect_to @contest
    else
      render :edit, status: :unprocessable_entity
    end
  end

  def destroy
    authorize @contest
  end

  private

  def set_badges
    @badges = []
    @badges.push("team") if @contest.team
    @badges.push("registration") if @contest.allow_registration
  end

  def set_contest
    @contest = Contest.find(params[:id])
  end

  def contest_params
    params.expect(contest: [ :name, :team, :allow_registration ])
  end
end