<?php

if ( ! defined( 'ABSPATH' ) ) {
    exit; // Exit if accessed directly
}
/**
 * Huayi-Score Payment Gateway.
 * @class WC_Huayi_Score
 * @extends	 WC_Payment_Gateway
 * @package
 * @author hitsword
 */
class WC_Huayi_Score extends WC_Payment_Gateway {

    /**
     * WC_Huayi_Score constructor.
     * 初始化
     */
    public function __construct()
    {
        $this->id = 'huayi_score';
        $this->icon = apply_filters('woocommerce_huayi_score_icon', '');
        $this->has_fields = true;
        $this->method_title = __( '积分支付', 'huayi_score' );
        $this->method_description = __( '调用系统积分数据进行支付.', 'huayi_score' );
        $this->supports = array('refunds');

        // Load the settings.
        $this->init_form_fields();
        $this->init_settings();

        // Define user set variables
        $this->title = $this->get_option( 'title' );
        $this->description = $this->get_option( 'description' );
        $this->instructions = $this->get_option( 'instructions', $this->description );

        // Actions
        add_action( 'woocommerce_update_options_payment_gateways_' . $this->id, array( $this, 'process_admin_options' ) );
        add_action( 'woocommerce_thankyou_huayi_score', array( $this, 'thankyou_page' ) );

        // Customer Emails
        add_action( 'woocommerce_email_before_order_table', array( $this, 'email_instructions' ), 10, 3 );
    }

    /**
     * Initialise Gateway Settings Form Fields.
     */
    public function init_form_fields()
    {
        $this->form_fields = array(
            'enabled' => array(
                'title'   => __( '开/关', 'huayi_score' ),
                'type'    => 'checkbox',
                'label'   => __( '开启积分支付', 'huayi_score' ),
                'default' => 'yes'
            ),
            'apiurl' => array(
                'title'       => __( 'API地址', 'huayi_score' ),
                'type'        => 'text',
                'description' => __( '对接API的地址.', 'huayi_score' ),
                'default'     => __( 'https://test.com', 'huayi_score' ),
                'desc_tip'    => true,
            ),
            'token' => array(
                'title'       => __( 'Token', 'huayi_score' ),
                'type'        => 'text',
                'description' => __( 'API Token.', 'huayi_score' ),
                'default'     => __( 'token', 'huayi_score' ),
                'desc_tip'    => true,
            ),
            'title' => array(
                'title'       => __( '名称', 'huayi_score' ),
                'type'        => 'text',
                'description' => __( '客户在结算时显示的支付方式名称.', 'huayi_score' ),
                'default'     => __( '积分支付', 'huayi_score' ),
                'desc_tip'    => true,
                ),
            'description' => array(
                'title'       => __( '描述', 'huayi_score' ),
                'type'        => 'textarea',
                'description' => __( '在订单结算时显示的支付接口描述.', 'huayi_score' ),
                'default'     => __( '使用积分结算.', 'huayi_score' ),
                'desc_tip'    => true,
                ),
            'instructions' => array(
                'title'       => __( '说明', 'huayi_score' ),
                'type'        => 'textarea',
                'description' => __( '说明将被添加到感谢页面.', 'huayi_score' ),
                'default'     => __( '使用积分结算.', 'huayi_score' ),
                'desc_tip'    => true,
                ),
            );
    }

    /**
     * Output for the order received page.
     */
    public function thankyou_page()
    {
        if ( $this->instructions )
            echo wpautop( wptexturize( $this->instructions ) );
    }

    /**
     * Add content to the WC emails.
     *
     * @access public
     * @param WC_Order $order
     * @param bool $sent_to_admin
     * @param bool $plain_text
     */
    public function email_instructions( $order, $sent_to_admin, $plain_text = false )
    {
        if ( $this->instructions && ! $sent_to_admin && 'huayi_score' === $order->payment_method && $order->has_status( 'on-hold' ) ) {
            echo wpautop( wptexturize( $this->instructions ) ) . PHP_EOL;
        }
    }

    /**
     * 发起支付
     *
     * @param int $order_id
     * @return array
     */
    public function process_payment( $order_id )
    {
        $order = wc_get_order( $order_id );//获取订单
        $huayi_uid = get_user_meta( $order->get_user_id() , 'huayi_uid',true );//获取登录接口后的uid
//        $huayi_openid = get_user_meta( $order->get_user_id() , 'huayi_openid',true );//获取登录接口后的openid
//        $huayi_unionid = get_user_meta( $order->get_user_id() , 'huayi_unionid',true );//获取登录接口后的unionid

        if ( $huayi_uid > 0 ) {
            $huayiScoreSdk = new HuayiScoreSdk(array('apiurl'=>'1','token'=>'1'));
            $balanceResult = $huayiScoreSdk->getBalance($huayi_uid);//获取积分余额 TODO
            wc_add_notice( __('结算失败:', 'huayi_score') . $balanceResult, 'error' );
            return;//debug;
            if ($balanceResult >= $order->order_total ) {//积分够扣
                $payResult = $huayiScoreSdk->pay($huayi_uid,$order->order_total,'订单号:'.$order_id);//执行扣款 TODO
                //支付成功
                if ( $payResult['uid'] > 0 ) {//TODO 修正状态判断

                    //更新订单状态
                    //$order->update_status( 'on-hold', __( '等待积分支付', 'huayi_score' ) );//需要支付回调的接口才需要

                    //更新订单状态
                    $order->payment_complete();//支付成功

                    // 更新库存
                    $order->reduce_order_stock();
                    // 清空购物车
                    WC()->cart->empty_cart();
                    // 返回感谢页面
                    return array(
                        'result' => 'success',
                        'redirect' => $this->get_return_url( $order )
                    );
                } else { //支付失败
                    $error_message = '支付接口出错 - ' . $payResult;
                    wc_add_notice( __('结算失败:', 'huayi_score') . $error_message, 'error' );
                    return;
                }
            } else { //积分不足
                $error_message = '积分余额不足.';
                wc_add_notice( __('结算失败:', 'huayi_score') . $error_message, 'error' );
                return;
            }
        } else {
            $error_message = '用户资料故障，请联系客服。';
            wc_add_notice( __('结算失败:', 'huayi_score') . $error_message, 'error' );
            return;
        }
    }

    /**
     * 发起退款
     * @param  int    $order_id
     * @param  float  $amount
     * @param  string $reason
     * @return bool True or false based on success, or a WP_Error object
     */
    public function process_refund( $order_id, $amount = null, $reason = '' )
    {
        $order = wc_get_order( $order_id );
        $huayi_uid = get_user_meta( $order->get_user_id() , 'huayi_uid',true );

        if ( $huayi_uid > 0 ) {
            $huayiScoreSdk = new HuayiScoreSdk(array('apiurl'=>'1','token'=>'1'));
            $result = $huayiScoreSdk->refund($huayi_uid,$amount,'退款订单号:'.$order_id.'.退款原因:'.$reason);//执行退款

            if ( $result['uid'] > 0 ) {//TODO 修正状态判断
                $order->add_order_note( sprintf( __( '退款时间: %s - 退款会员ID: %s', 'huayi_score' ), date("Y-m-d H:i:s"),$result['uid'] ) );
                return true;
            } else {
                return new WP_Error( 'error', $result );
            }
        } else {
            return new WP_Error( 'error', '用户信息错误' );
        }
    }
}