class CompletionsController < ApplicationController
  include CompletionsConcern

  before_action :set_contest
  before_action :set_data, only: %i[ create edit new update ]
  before_action :set_completion, only: %i[ destroy edit update ]

  def edit
    authorize @contest
  end

  def new
    authorize @contest

    @completion = Completion.new
    if params[:contestant_id]
      @completion.contestant_id = params[:contestant_id]
    end
  end

  def create
    authorize @contest

    @completion = Completion.new(completion_params)
    @completion.contest_id = @contest.id
    if @completion.save
      extend_completions!(@completion.contestant)
      redirect_to contest_path(@contest)
    else
      render :new, status: :unprocessable_entity
    end
  end

  def update
    authorize @contest

    @completion.contestant_id = params[:contestant_id] if params[:contestant_id]
    if @completion.update(completion_params)
      extend_completions!(@completion.contestant)
      redirect_to @contest
    else
      render :edit, status: :unprocessable_entity
    end
  end

  def destroy
    authorize @contest

    @completion.destroy
    if params[:contestant_id]
      redirect_to contest_contestant_path(@contest, params[:contestant_id])
    else
      redirect_to contest_path(@contest)
    end
  end

  private

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

  def set_data
    @contestants = @contest.contestants
    @puzzles = @contest.puzzles
  end

  def set_completion
    @completion = Completion.find(params[:id])
  end

  def completion_params
    params.expect(completion: [ :display_time_from_start, :contestant_id, :puzzle_id ])
  end
end