skill-assessment-app/app/controllers/admin/candidate_controller.rb

# frozen_string_literal: true
module Admin
  class CandidateController < AdminController
    before_action :collect_quizzes, except: [:login, :auth]

    helper_method :sort_column

    def index
      @candidates = policy_scope Candidate.order("#{sort_column} #{sort_direction}")
                    .page(params[:page])
    end

    def new
      authorize Candidate
      @candidate = Candidate.new
      render :new
    end

    def create
      authorize Candidate
      @candidate = Candidate.create(candidate_params.merge(recruiter_id: current_user.id))

      if @candidate.persisted?
        send_notifications @candidate
        redirect_to admin_candidates_path,
                    flash: { success: "Sucessfully created candidate #{@candidate.name}" }
      else
        flash[:error] = "Failed to save candidate."
        render :new
      end
    end

    def edit
      authorize Candidate
      @candidate = Candidate.find_by(id: params[:id])
    end

    def update
      authorize Candidate
      @candidate = Candidate.find_by(id: params[:id])
      @candidate.update(candidate_params)

      if @candidate.save
        redirect_to admin_candidates_path, flash: { success: "#{@candidate.name} updated!" }
      else
        flash[:error] = "Failed to save candidate."
        render :edit
      end
    end

    def resend_welcome
      authorize Candidate
      candidate = Candidate.find_by(id: params[:id])
      CandidateMailer.welcome(candidate).deliver_later
    end

    private

      def candidate_params
        params.require(:candidate).permit(:name, :email, :experience, :quiz_id, :project)
      end

      def collect_quizzes
        @quizzes ||= Quiz.order(:name)
      end

      def send_notifications candidate
        CandidateMailer.welcome(candidate).deliver_later
        RecruiterMailer.candidate_created(candidate).deliver_later
      end

      def sort_column
        Candidate.column_names.include?(params[:sort]) ? params[:sort] : 'name'
      end
  end
end