<?php

class EPL_Gateway_Model extends EPL_Model {


    function __construct() {
        parent::__construct();

        $this->erm = $this->epl->load_model( 'epl-registration-model' );
        $this->ecm = $this->epl->load_model( 'epl-common-model' );
    }

    /*
     * get the token and redirect to paypal
     */


    function _express_checkout_redirect() {
        global $event_details;

        $event_id = $event_details['ID']; //key( ( array ) $_SESSION['__epl'][$regis_id]['events'] );

        if ( is_null( $event_id ) ) {
            return false;
        }
        $this->epl->load_file( 'libraries/gateways/paypal/paypal.php' );

        $url = (!empty( $_SERVER['HTTPS'] ) && $_SERVER['HTTPS'] !== 'off' || $_SERVER['SERVER_PORT'] == 443) ? "https://" . $_SERVER['SERVER_NAME'] . $_SERVER['REQUEST_URI'] : "http://" . $_SERVER['SERVER_NAME'] . $_SERVER['REQUEST_URI'];

        //echo "<pre class='prettyprint'>" . print_r( $_SESSION, true ) . "</pre>";
        $regis_id = $this->erm->get_regis_id();
        $gateway_info = $this->erm->get_gateway_info();


        $tickets = $_SESSION['__epl'][$regis_id]['_dates']['_att_quantity'];

        $post_ID = $_SESSION['__epl']['post_ID'];

        //echo "<pre class='prettyprint'>" . print_r($post_ID, true). "</pre>";

        $this->ecm->setup_event_details( $event_id );

        $_totals = $this->erm->calculate_totals();


        $requestParams = array(
            'RETURNURL' => esc_url_raw(add_query_arg( array( 'cart_action' => '', 'p_ID' => $post_ID, 'regis_id' => $regis_id, 'epl_action' => '_exp_checkout_payment_success' ), $url )),
            'CANCELURL' => esc_url_raw(add_query_arg( array( 'cart_action' => '', 'p_ID' => $post_ID, 'regis_id' => $regis_id, 'epl_action' => '_exp_checkout_payment_cancel' ), $url )),
            "SOLUTIONTYPE" => 'Sole',
            "LANDINGPAGE" => epl_nz( $gateway_info['_epl_pp_landing_page'], 'Login' )
        );

        $orderParams = array(
            'PAYMENTREQUEST_0_AMT' => $_totals['money_totals']['grand_total'],
            'PAYMENTREQUEST_0_SHIPPINGAMT' => 0,
            'PAYMENTREQUEST_0_CURRENCYCODE' => epl_nz( epl_get_general_setting( 'epl_currency_code' ), 'USD' ),
            'PAYMENTREQUEST_0_ITEMAMT' => $_totals['money_totals']['grand_total']
        );

        $item = array(
            'L_PAYMENTREQUEST_0_NAME0' => epl__('Registration'),
            'L_PAYMENTREQUEST_0_DESC0' => $event_details['post_title'] . ', ' . $_totals['_att_quantity']['total'][$event_details['ID']] . ' ' . epl__('attendees'),
            'L_PAYMENTREQUEST_0_AMT0' => $_totals['money_totals']['grand_total'],
            'L_PAYMENTREQUEST_0_QTY0' => 1 //$_totals['_att_quantity']['total'][$event_details['ID']]
        );

/*
         $counter = 0;
        $item = array( );
        foreach ( $tickets as $event_id => $ind_tickets ) {

            foreach ( $ind_tickets as $ticket_id => $ticket_qty ) {

                $ticket_name = epl_get_element( $ticket_id, $event_details['_epl_price_name'] );
                $ticket_price = epl_get_element( $ticket_id, $event_details['_epl_price'] );
                $qty = (is_array( $ticket_qty )) ? array_sum( $ticket_qty ) : $ticket_qty;

                if ( $qty > 0 ) {
                    $item['L_PAYMENTREQUEST_0_NAME' . $counter] = substr( $event_details['post_title'], 0, 126 );
                    $item['L_PAYMENTREQUEST_0_DESC' . $counter] = $ticket_name;
                    //$item['L_PAYMENTREQUEST_0_NUMBER' . $counter] = $ticket_id;
                    $item['L_PAYMENTREQUEST_0_AMT' . $counter] = $ticket_price;
                    $item['L_PAYMENTREQUEST_0_QTY' . $counter] = $qty;

                    $counter++;
                }
            }
        }
*/
        //echo "<pre class='prettyprint'>" . print_r( $requestParams + $orderParams + $item, true ) . "</pre>";

        $paypal = new EPL_Paypal();

        $response = $paypal->request( 'SetExpressCheckout', $requestParams + $orderParams + $item );

        if ( is_array( $response ) && $response['ACK'] == 'Success' ) { //Request successful
            $token = $response['TOKEN'];

            if ( $gateway_info['_epl_sandbox'] == 10 )
                header( 'Location: https://www.sandbox.paypal.com/webscr?cmd=_express-checkout&token=' . urlencode( $token ) );
            else
                header( 'Location: https://www.paypal.com/webscr?cmd=_express-checkout&token=' . urlencode( $token ) );
        }
        else {


            $error = 'ERROR: ' . $response['L_SHORTMESSAGE0'] . '. ' . $response['L_LONGMESSAGE0'];

            echo EPL_Util::get_instance()->epl_invoke_error( 0, $error, false );
        }
    }

    /*
     * payment successfull and  back to the overview page
     *
     */


    function _exp_checkout_payment_success() {


        $this->epl->load_file( 'libraries/gateways/paypal/paypal.php' );
        if ( isset( $_GET['token'] ) && !empty( $_GET['token'] ) ) { // Token parameter exists
            // Get checkout details, including buyer information.
            // We can save it for future reference or cross-check with the data we have
            $paypal = new EPL_Paypal();
            $checkoutDetails = $paypal->request( 'GetExpressCheckoutDetails', array( 'TOKEN' => $_GET['token'] ) );
            //echo "<pre class='prettyprint'>" . print_r( $checkoutDetails, true ) . "</pre>";
            // Complete the checkout transaction

            return true;
        }

        return false;
    }

    /*
     * collect payment and send to payment made page.
     */


    function _exp_checkout_do_payment() {

        global $event_details;
        $event_id = $event_details['ID'];

        if ( is_null( $event_id ) ) {
            return false;
        }

        $regis_id = $this->erm->get_regis_id();


        $post_ID = $_SESSION['__epl']['post_ID'];


        $this->ecm->setup_event_details( $event_id );

        $_totals = $this->erm->calculate_totals();


        $this->epl->load_file( 'libraries/gateways/paypal/paypal.php' );
        $paypal = new EPL_Paypal();
        $requestParams = array(
            'TOKEN' => $_GET['token'],
            'PAYMENTACTION' => 'Sale',
            'PAYERID' => $_GET['PayerID'],
            'PAYMENTREQUEST_0_AMT' => $_totals['money_totals']['grand_total'], // Same amount as in the original request
            'PAYMENTREQUEST_0_CURRENCYCODE' => epl_nz( epl_get_general_setting( 'epl_currency_code' ), 'USD' )
        );

        $response = $paypal->request( 'DoExpressCheckoutPayment', $requestParams );
        if ( is_array( $response ) && $response['ACK'] == 'Success' ) {

            $data['post_ID'] = $post_ID;
            $data['_epl_regis_status'] = '5';
            $data['_epl_grand_total'] = $_totals['money_totals']['grand_total'];
            $data['_epl_payment_amount'] = $response['PAYMENTINFO_0_AMT'];
            $data['_epl_payment_date'] = current_time( 'mysql' );
            $data['_epl_payment_method'] = '_pp_exp';
            $data['_epl_transaction_id'] = $response['PAYMENTINFO_0_TRANSACTIONID'];

            $data = apply_filters( 'epl_pp_exp_response_data', $data, $response );

            $this->erm->update_payment_data( $data );


            return true; //echo "DONE";
        }
        else {
            //display error message
            return 'ERROR: ' . $response['L_SHORTMESSAGE0'] . '. ' . $response['L_LONGMESSAGE0'];
        }
    }

}