class MessagesController < ApplicationController
  include CompletionsConcern

  skip_before_action :verify_authenticity_token, only: %i[ create ]

  before_action :set_contest, only: %i[ convert destroy ]
  before_action :set_message, only: %i[ convert destroy ]
  before_action :set_data, only: %i[ convert ]

  def self.local_prefixes
    super + [ "completions" ]
  end

  def create
    allow_unauthenticated_access
    skip_authorization

    @message_params = message_params
    @contest = Contest.find_by_token_for(:token, params[:token])
    @message = Message.new(text: params[:text], time_seconds: params[:time_seconds],
        display_time: display_time(params[:time_seconds]), contest: @contest)
    if @contest && @message.save
      respond_to do |format|
        format.json  { render json: {}, status: 200 }
      end
    else
      respond_to do |format|
        format.json  { render json: { error: "invalid contest token" }, status: 400 }
      end
    end
  end

  def convert
    authorize @contest

    @completion = Completion.new()
    @completion.display_time_from_start = @message.display_time

    render "completions/new"
  end

  def destroy
    authorize @contest

    @message.destroy
    redirect_to contest_path(@contest)
  end

  private

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

  def set_message
    @message = Message.find(params[:message_id])
  end

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

  def message_params
    params.expect(message: [ :author, :text, :time_seconds, :token ])
  end
end