package cc.mrbird.febs.pay.service.impl;

import cc.mrbird.febs.common.properties.XcxProperties;
import cc.mrbird.febs.common.utils.SpringContextHolder;
import cc.mrbird.febs.mall.entity.MallMember;
import cc.mrbird.febs.mall.entity.MallOrderInfo;
import cc.mrbird.febs.mall.entity.MallOrderItem;
import cc.mrbird.febs.mall.mapper.MallMemberMapper;
import cc.mrbird.febs.mall.mapper.MallOrderInfoMapper;
import cc.mrbird.febs.pay.model.BrandWCPayRequestData;
import cc.mrbird.febs.pay.service.IXcxPayService;
import cc.mrbird.febs.pay.util.WeixinServiceUtil;
import cn.hutool.log.Log;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.collections.CollectionUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Service;

import java.math.BigDecimal;
import java.util.List;

@Slf4j
@Service
public class XcxPayServiceImpl implements IXcxPayService {

    @Autowired
    MallOrderInfoMapper mallOrderInfoMapper;
    @Autowired
    MallMemberMapper mallMemberMapper;
    @Autowired
    WeixinServiceUtil weixinServiceUtil;

    private final XcxProperties xcxProperties = SpringContextHolder.getBean(XcxProperties.class);

    @Override
    public BrandWCPayRequestData startPayment(MallOrderInfo mallOrderInfo) throws Exception {
        BigDecimal unit = new BigDecimal("100");
        BigDecimal money = new BigDecimal(mallOrderInfo.getAmount().toString());
        BrandWCPayRequestData payData;
        String productNames = getProductNames(mallOrderInfo.getMemberId(), mallOrderInfo.getId());
        MallMember mallMember = mallMemberMapper.selectById(mallOrderInfo.getMemberId());
        Boolean debug = xcxProperties.getDebug();
        if (debug) {
            payData = weixinServiceUtil.createOrder("[测试]" + productNames, mallOrderInfo.getOrderNo(),
                    1, mallMember.getOpenId(), String.valueOf(mallOrderInfo.getId()));
        } else {
            payData = weixinServiceUtil.createOrder(productNames, mallOrderInfo.getOrderNo(),
                    unit.multiply(money).intValue(),mallMember.getOpenId(), String.valueOf(mallOrderInfo.getId()));
        }
        mallOrderInfo.setWxOrderNo(payData.getPrepay_id());
        mallOrderInfoMapper.updateById(mallOrderInfo);
        return payData;
    }

    /**
     * 根据用户ID和订单ID获取所购买商品名称
     * @return 所含商品名称（多个以"，"隔开）
     */
    public String getProductNames(Long memberId, Long orderId) {
        MallOrderInfo mallOrderInfo = mallOrderInfoMapper.selectOrderByMemberIdAndId(memberId, orderId);
        List<MallOrderItem> details = mallOrderInfo.getItems();
        if (CollectionUtils.isEmpty(details)) {
            return "";
        }
        StringBuffer productNameBuffer = new StringBuffer();
        Integer maxLength = 30;
        for (int i = 0; i< details.size(); i++) {
            MallOrderItem mallOrderItem = details.get(i);
            String goodsName = mallOrderItem.getGoodsName();
            if (goodsName == null) {
                continue;
            }
            if (i == 0 && goodsName.length() > maxLength) {
                productNameBuffer.append(goodsName.substring(0, maxLength) + "...");
                break;
            }
            if ((productNameBuffer.length() + goodsName.length()) > maxLength) {
                productNameBuffer.append("等");
                break;
            }
            productNameBuffer.append(goodsName + ",");
        }
        String productNames = productNameBuffer.toString();
        if (productNames.endsWith(",")) {
            productNames = productNames.substring(0, productNames.length() - 1);
        }
        if (productNames.endsWith(",等")) {
            productNames = productNames.substring(0, productNames.length() - 2) + "等";
        }
        return productNames;
    }
}