package cc.mrbird.febs.pay.controller;

import cc.mrbird.febs.common.enumerates.OrderDeliveryStateEnum;
import cc.mrbird.febs.common.enumerates.OrderStatusEnum;
import cc.mrbird.febs.common.exception.FebsException;
import cc.mrbird.febs.common.utils.ValidateEntityUtils;
import cc.mrbird.febs.mall.entity.MallOrderInfo;
import cc.mrbird.febs.mall.mapper.MallOrderInfoMapper;
import cn.hutool.core.date.DateUtil;
import cn.hutool.json.JSONObject;
import cn.hutool.json.JSONUtil;
import io.swagger.annotations.Api;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.codec.digest.DigestUtils;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;

import javax.annotation.Resource;
import java.math.BigDecimal;
import java.math.RoundingMode;

@Slf4j
@Controller
//@RestController
@Api(value = "FiuuReturnController", tags = "FIUU支付-ReturnURL")
@RequestMapping(value = "/api/fuPayReturn")
public class FiuuReturnController {

    private static final String SECRET_KEY = "59c709fc18978a6a83b87f05d37cecbf";
    @Resource
    private MallOrderInfoMapper mallOrderInfoMapper;

    @PostMapping("/payment/callback")
    public String handlePaymentCallback(
            @RequestParam("amount") String amount,
            @RequestParam("orderid") String orderId,
            @RequestParam("tranID") String tranId,
            @RequestParam("status") String status,
            @RequestParam("domain") String domain,
            @RequestParam("currency") String currency,
            @RequestParam("appcode") String appcode,
            @RequestParam("paydate") String payDate,
            @RequestParam("skey") String receivedSkey,
            Model model)  {

        // 1. 格式化amount为两位小数（确保与Fiuu传递的格式一致）
        BigDecimal amountDecimal;
        try {
            amountDecimal = new BigDecimal(amount).setScale(2, RoundingMode.HALF_UP);
        } catch (NumberFormatException e) {
            throw new FebsException("金额格式错误: " + amount);
        }
        String formattedAmount = amountDecimal.toPlainString(); // 例如 "100.00"

        // 2. 生成preSkey（严格按照参数顺序拼接）
        log.info("callback Parameters for preSkey: tranId={}, orderId={}, status={}, domain={}, amount={}, currency={}", tranId, orderId, status, domain, amount, currency);
        // 第一步哈希：pre_skey = md5(txnID + orderID + status + domain + amount + currency)
        String preSkeyInput = tranId + orderId + status + domain + formattedAmount + currency;
        String preSkey = DigestUtils.md5Hex(preSkeyInput);
        log.info("callback preSkey生成参数: {}", preSkeyInput);
        log.info("callback preSkey计算结果: {}", preSkey);
        log.info("callback Parameters for calculatedSkey: payDate={}, domain={}, preSkey={}, appcode={}, SECRET_KEY={}", payDate, domain, preSkey, appcode, SECRET_KEY);
        // 第二步哈希：skey = md5(paydate + domain + pre_skey + appcode + secret_key)
        String skeyInput = payDate + domain + preSkey + appcode + SECRET_KEY;
        String calculatedSkey = DigestUtils.md5Hex(skeyInput);

        log.info("callback skey生成参数: {}", skeyInput);
        log.info("callback callback status: {}", status);
        log.info("callback receivedSkey: {}", receivedSkey);
        log.info("callback calculatedSkey: {}", calculatedSkey);

        if (!calculatedSkey.equalsIgnoreCase(receivedSkey)) {
            // 记录安全警告日志
            throw new FebsException("订单回调失败，---" + orderId);
        }

        // 将支付结果信息传递给支付成功页面
        model.addAttribute("amount", amount);
        model.addAttribute("orderId", orderId);
        model.addAttribute("tranId", tranId);
        model.addAttribute("status", status);
        model.addAttribute("currency", currency);
        model.addAttribute("payDate", payDate);
        updateOrderStatus(orderId, status, amount, payDate, tranId);

        // 跳转到支付成功页面
        return "payment-success";
    }

    public static void main(String[] args) {
        String secretKey = "59c709fc18978a6a83b87f05d37cecbf";
        String ss = "{\"nbcb\":\"2\",\"tranID\":\"2693805878\",\"amount\":\"1.00\",\"orderid\":\"359\",\"channel\":\"alipay\",\"paydate\":\"2025-02-10 10:24:20\",\"error_desc\":\"\",\"domain\":\"e2umart01\",\"skey\":\"29913d009b74cb8bc3650aed84394cfe\",\"error_code\":\"\",\"currency\":\"RM\",\"appcode\":\"2025021022001302841422314686\",\"status\":\"00\"}";

        JSONObject params = JSONUtil.parseObj(ss);

        // 按API文档生成skey
        String tranID = params.getStr("tranID");
        String orderId = params.getStr("orderid");
        String status = params.getStr("status");
        String domain = params.getStr("domain");
        String amount = params.getStr("amount");
        String currency = params.getStr("currency");
        String appcode = params.getStr("appcode");
        String paydate = params.getStr("paydate");
        String receivedSkey = params.getStr("skey");

        // 第一步哈希：pre_skey = md5(txnID + orderID + status + domain + amount + currency)
        String preSkey = DigestUtils.md5Hex(tranID + orderId + status + domain + amount + currency);

        log.info("notify preSkey: {}", preSkey);
        // 第二步哈希：skey = md5(paydate + domain + pre_skey + appcode + secretKey)
        String calculatedSkey = DigestUtils.md5Hex(paydate + domain + preSkey + appcode + secretKey);

        log.info("notify calculatedSkey: {}", calculatedSkey);

        // 1. 格式化amount为两位小数（确保与Fiuu传递的格式一致）
        BigDecimal amountDecimal;
        try {
            amountDecimal = new BigDecimal(amount).setScale(2, RoundingMode.HALF_UP);
        } catch (NumberFormatException e) {
            throw new FebsException("金额格式错误: " + amount);
        }
        String formattedAmount = amountDecimal.toPlainString(); // 例如 "100.00"

        // 2. 生成preSkey（严格按照参数顺序拼接）
        log.info("callback Parameters for preSkey: tranId={}, orderId={}, status={}, domain={}, amount={}, currency={}", tranID, orderId, status, domain, amount, currency);
        // 第一步哈希：pre_skey = md5(txnID + orderID + status + domain + amount + currency)
        String preSkeyInput = tranID + orderId + status + domain + formattedAmount + currency;
        String preSkey1 = DigestUtils.md5Hex(preSkeyInput);
        log.info("callback preSkey生成参数: {}", preSkeyInput);
        log.info("callback preSkey计算结果: {}", preSkey1);
        log.info("callback Parameters for calculatedSkey: payDate={}, domain={}, preSkey={}, appcode={}, SECRET_KEY={}", paydate, domain, preSkey, appcode, SECRET_KEY);
        // 第二步哈希：skey = md5(paydate + domain + pre_skey + appcode + secret_key)
        String skeyInput = paydate + domain + preSkey + appcode + secretKey;
        String calculatedSkey1 = DigestUtils.md5Hex(skeyInput);

        log.info("callback skey生成参数: {}", skeyInput);
        log.info("callback callback status: {}", status);
        log.info("callback receivedSkey: {}", receivedSkey);
        log.info("callback calculatedSkey: {}", calculatedSkey1);

    }

    private void updateOrderStatus(String orderId, String status, String amount, String paydate, String tranID) {
        // 实现订单状态更新逻辑（如更新数据库）
        MallOrderInfo mallOrderInfo = ValidateEntityUtils.ensureColumnReturnEntity(orderId, MallOrderInfo::getId, mallOrderInfoMapper::selectOne, "订单不存在");
        ValidateEntityUtils.ensureNotEqual(mallOrderInfo.getPayResult(), "1", "订单已支付");
        ValidateEntityUtils.ensureEqual(mallOrderInfo.getAmount().toString(), amount, "订单金额异常");
        // 更新订单状态
        mallOrderInfo.setPayMethod("FIUU支付");
        mallOrderInfo.setStatus(OrderStatusEnum.WAIT_SHIPPING.getValue());
        mallOrderInfo.setPayResult("1");
        mallOrderInfo.setPayTime(DateUtil.parseDateTime(paydate));
        mallOrderInfo.setDeliveryState(OrderDeliveryStateEnum.DELIVERY_WAIT.getValue());
        mallOrderInfo.setPayOrderNo(tranID);
        mallOrderInfoMapper.updateById(mallOrderInfo);
    }
}