vinsol/Spree-Gtpay

module Spree
  class GtpayTransactionsController < StoreController
    before_filter :load_gtpay_transaction, :only => :callback
    skip_before_filter :verify_authenticity_token, :only => :callback
    before_filter :authenticate_spree_user!, :only => :index

    def callback
      if  @transaction.update_transaction(transaction_params) && @transaction.successful?
        reset_redirect_to_order_detail
      else
        flash[:error] = "Your Transaction was not successful. <br/> Reason: #{@transaction.gtpay_tranx_status_msg}. <br/> Transaction reference: #{@transaction.gtpay_tranx_id}. <br/> Please Try again".html_safe
        redirect_to checkout_state_path(current_order.state)
      end
    end

    def index
      @transactions = spree_current_user.gtpay_transactions.includes(:order).order('updated_at desc').page(params[:page]).per(20)
    end

    private

    def load_gtpay_transaction
      unless @transaction = current_order.gtpay_transactions.pending.where(:gtpay_tranx_id => params[:gtpay_tranx_id]).first
        redirect_to checkout_state_path(current_order.state), :flash => { :error => "Your Order cannot be processed. Please contact customer support <br/> Reason: #{params[:gtpay_tranx_status_msg]} <br/> Transaction Reference: #{params[:gtpay_tranx_id]}".html_safe }
      end
    end

    def transaction_params
      { :gtpay_tranx_amount => params[:gtpay_tranx_amt], :gtpay_tranx_status_code => params[:gtpay_tranx_status_code], :gtpay_tranx_status_msg => params[:gtpay_tranx_status_msg] }
    end

    def reset_redirect_to_order_detail
      session[:order_id] = nil
      flash.notice = "Your Order has been processed successfully. <br/> Transaction Reference: #{params[:gtpay_tranx_id]} <br/> Transaction Code: #{params[:gtpay_tranx_status_code]} <br/> Transaction Message: #{params[:gtpay_tranx_status_msg]}".html_safe
      redirect_to spree.order_path(current_order)
    end

  end
end