<?php
/**
 * Komoju - Payment Gateway
 */
class TC_Gateway_Komoju extends TC_Gateway_API {

    var $plugin_name = 'komoju';
    var $admin_name = '';
    var $public_name = '';
    var $method_img_url = '';
    var $admin_img_url = '';
    var $force_ssl = false;
    var $ipn_url;
    var $currencies = array();
    var $live_url;
    var $merchant_id = '';
    var $notify_url = '';
    var $success_url = '';
    var $fail_url = '';
    var $automatically_activated = false;
    var $currency = '';
    var $skip_payment_screen = false;

    /**
     * Support for older payment gateway API
     */
    function on_creation() {
        $this->init();
    }

    function init() {

        global $tc;

        $this->admin_name = __( 'Komoju', 'tc' );
        $this->public_name = __( 'Komoju', 'tc' );

        $this->sandbox_url = 'https://sandbox.komoju.com';
        $this->live_url = 'https://komoju.com';

        $this->notify_url = $this->ipn_url;
        $this->success_url = '';

        $this->method_img_url = apply_filters( 'tc_gateway_method_img_url', $tc->plugin_url . 'images/gateways/komoju.png', $this->plugin_name );
        $this->admin_img_url = apply_filters( 'tc_gateway_admin_img_url', $tc->plugin_url . 'images/gateways/small-komoju.png', $this->plugin_name );

        $this->locale = $this->get_option( 'locale', 'ja' );
        $this->currency = $this->get_option( 'currency', 'JPY' );

        $this->mode = $this->get_option( 'mode', 'sandbox' );

        $this->account_id = $this->get_option( 'account_id' );
        $this->secret_key = $this->get_option( 'secret_key' );

        $currencies = array(
            "JPY" => __( 'JPY - Japanese Yen', 'tc' ),
        );

        $this->locales = array(
            "ja" => __( 'Japanese', 'tc' ),
            "en" => __( 'English', 'tc' ),
        );

        $this->payment_methods = array(
            'bank_transfer' => __( '銀行振込 Bank transfer', 'tc' ),
            'credit_card' => __( 'コンビニ Credit Card (Visa, MasterCard, JCB, AMEX)', 'tc' ),
            'konbini' => __( 'クレジットカード Convenience Store Payment (Konbini)', 'tc' ),
            'pay_easy' => __( 'ペイジー PayEasy', 'tc' ),
            'web_money' => __( 'WebMoney', 'tc' ),
            'bit_cash' => __( 'BitCash', 'tc' )
        );

        $this->currencies = $currencies;
    }

    function payment_form( $cart ) {

        $saved_payment_option_values = (array) $this->get_option( 'payment_methods' );
        $content = '<table class="tc_cart_billing">';
        $content .= '<thead>';
        $content .= '<tr>';
        $content .= '<th colspan="2">' . __( 'Choose payment method:', 'tc' ) . '</th>';
        $content .= '</tr>';
        $content .= '</thead>';
        $content .= '<tbody>';
        $content .= '<tr>';
        $content .= '<td colspan="2">';

        $first = true;
        foreach ( $this->payment_methods as $payment_method => $payment_title ) {
            if ( in_array( $payment_method, $saved_payment_option_values ) ) {
                $content .= '<input type="radio" name="komoju_payment_method" value="' . esc_attr( $payment_method ) . '" ' . ( $first ? 'checked' : '' ) . ' /> ' . esc_html( $payment_title ) . '<br />';
                $first = false;
            }
        }

        $content .= '</td>';
        $content .= '</tr>';
        $content .= '</tbody></table>';
        return $content;
    }

    function process_payment( $cart ) {

        global $tc;

        tc_final_cart_check( $cart );
        $this->save_cart_info();
        $payment_method = sanitize_text_field( $_POST[ 'komoju_payment_method' ] );
        $order_id = $tc->generate_order_id();

        $paid = false;
        $start_point = $this->mode == 'sandbox' ? $this->sandbox_url : $this->live_url;
        $secret_key = $this->secret_key;
        $endpoint = "/" . $this->locale . "/api/" . $this->account_id . "/transactions/" . $payment_method . "/new";

        $params = array(
            "transaction[amount]" => (float) $this->total(),
            "transaction[currency]" => $this->currency,
            "transaction[customer][given_name]" => $this->buyer_info( 'first_name' ),
            "transaction[customer][family_name]" => $this->buyer_info( 'last_name' ),
            "transaction[customer][given_name_kana]" => $this->buyer_info( 'first_name' ),
            "transaction[customer][family_name_kana]" => $this->buyer_info( 'last_name' ),
            "transaction[external_order_num]" => $order_id,
            "transaction[return_url]" => $tc->get_confirmation_slug( true, $order_id ),
            "transaction[cancel_url]" => $tc->get_cancel_url( $order_id ),
            "transaction[callback_url]" => $this->ipn_url,
            "transaction[tax]" => "0",
            "timestamp" => time(),
        );

        $qs_params = array();

        foreach ( $params as $key => $val ) {
            $qs_params[] = urlencode( $key ) . '=' . urlencode( $val );
        }

        sort( $qs_params );

        $query_string = implode( '&', $qs_params );
        $url = $endpoint . '?' . $query_string;
        $hmac = hash_hmac( 'sha256', $url, $secret_key );

        $payment_info = $this->save_payment_info();
        $tc->create_order( $order_id, $this->cart_contents(), $this->cart_info(), $payment_info, $paid );
        tc_redirect( $start_point . $url . '&hmac=' . $hmac, true );
    }

    function order_confirmation( $order, $payment_info = '', $cart_info = '' ) {

        global $tc;

        if ( isset( $_GET[ 'hmac' ] ) ) {

            $order_num = sanitize_text_field( $_GET[ 'transaction' ][ 'external_order_num' ] );
            $status = sanitize_text_field( $_GET[ 'transaction' ][ 'status' ] );
            $order = tc_get_order_id_by_name( $order_num );

            if ( 'captured' == $status ) {
                $tc->update_order_payment_status( $order->ID, true );
            }

            $tc->remove_order_session_data();
        }
    }

    function gateway_admin_settings( $settings, $visible ) {
        ?>
        <div id="<?php echo esc_attr( $this->plugin_name ); ?>" class="postbox" <?php echo( ! $visible ? 'style="display:none;"' : '' ); ?>>
            <h3>
                <span><?php printf( __( '%s Settings', 'tc' ), esc_html( $this->admin_name ) ); ?></span>
                <span class="description"><?php _e( 'Accept payments in Japan with Komoju.', 'tc' ) ?></span>
            </h3>
            <div class="inside">
                <?php
                $fields = array(
                    'mode' => array(
                        'title' => __( 'Mode', 'tc' ),
                        'type' => 'select',
                        'options' => array(
                            'sandbox' => __( 'Sandbox / Test', 'tc' ),
                            'live' => __( 'Live', 'tc' )
                        ),
                        'default' => 'sandbox',
                    ),
                    'account_id' => array(
                        'title' => __( 'Account ID', 'tc' ),
                        'type' => 'text',
                    ),
                    /* 'public_key'		 => array(
                      'title'	 => __( 'Publishable Key', 'tc' ),
                      'type'	 => 'text',
                      ), */
                    'secret_key' => array(
                        'title' => __( 'Secret key', 'tc' ),
                        'type' => 'text',
                    ),
                    'payment_methods' => array(
                        'title' => __( 'Payment methods', 'tc' ),
                        'type' => 'checkboxes',
                        'options' => $this->payment_methods,
                    ),
                    'locale' => array(
                        'title' => __( 'Locale', 'tc' ),
                        'type' => 'select',
                        'options' => $this->locales,
                        'default' => 'ja',
                    ),
                    'currency' => array(
                        'title' => __( 'Currency', 'tc' ),
                        'type' => 'select',
                        'options' => $this->currencies,
                        'default' => 'JPY',
                    ),
                );

                $form = new TC_Form_Fields_API( $fields, 'tc', 'gateways', $this->plugin_name );
                ?>
                <table class="form-table">
                    <?php $form->admin_options(); ?>
                </table>
            </div>
        </div>
        <?php
    }

    function ipn() {
        global $tc;

        if ( isset( $_GET[ 'hmac' ] ) ) {

            $order_num = sanitize_text_field( $_GET[ 'transaction' ][ 'external_order_num' ] );
            $status = sanitize_text_field( $_GET[ 'transaction' ][ 'status' ] );
            $order = tc_get_order_id_by_name( $order_num );

            if ( $status == 'captured' ) {
                $tc->update_order_payment_status( $order->ID, true );
            }
        }
    }
}

tc_register_gateway_plugin( 'TC_Gateway_Komoju', 'komoju', __( 'Komoju', 'tc' ) );
