package query

import (
	"context"
	"encoding/hex"
	"encoding/json"
	"fmt"
	"github.com/pkg/errors"
	"github.com/zeromicro/go-zero/core/stores/redis"
	"github.com/zeromicro/go-zero/core/stores/sqlx"
	"qnc-server/app/user/cmd/api/internal/service"
	"qnc-server/app/user/model"
	"qnc-server/common/ctxdata"
	"qnc-server/common/xerr"
	"qnc-server/pkg/lzkit/crypto"
	"qnc-server/pkg/lzkit/validator"

	"qnc-server/app/user/cmd/api/internal/svc"
	"qnc-server/app/user/cmd/api/internal/types"

	"github.com/zeromicro/go-zero/core/logx"
)

type BackgroundCheckLogic struct {
	logx.Logger
	ctx    context.Context
	svcCtx *svc.ServiceContext
}

func NewBackgroundCheckLogic(ctx context.Context, svcCtx *svc.ServiceContext) *BackgroundCheckLogic {
	return &BackgroundCheckLogic{
		Logger: logx.WithContext(ctx),
		ctx:    ctx,
		svcCtx: svcCtx,
	}
}

func (l *BackgroundCheckLogic) BackgroundCheck(req *types.QueryReq) (resp *types.QueryResp, err error) {
	userID, getUidErr := ctxdata.GetUidFromCtx(l.ctx)
	if getUidErr != nil {
		return nil, errors.Wrapf(xerr.NewErrCode(xerr.SERVER_COMMON_ERROR), "人事背调, 获取用户信息失败, %+v", getUidErr)
	}
	// 1、AES解密
	secretKey := l.svcCtx.Config.Encrypt.SecretKey
	key, decodeErr := hex.DecodeString(secretKey)
	if decodeErr != nil {
		return nil, errors.Wrapf(xerr.NewErrCode(xerr.SERVER_COMMON_ERROR), "人事背调, 密钥获取失败: %+v", decodeErr)
	}
	decryptData, aesDecryptErr := crypto.AesDecrypt(req.Data, key)
	if aesDecryptErr != nil || len(decryptData) == 0 {
		return nil, errors.Wrapf(xerr.NewErrCode(xerr.SERVER_COMMON_ERROR), "人事背调, 解密失败: %+v", decodeErr)
	}

	// 2、校验
	var data types.BackgroundCheckReq
	if unmarshalErr := json.Unmarshal(decryptData, &data); unmarshalErr != nil {
		return nil, errors.Wrapf(xerr.NewErrCode(xerr.SERVER_COMMON_ERROR), "人事背调, 解密后的数据格式不正确: %+v", unmarshalErr)
	}

	if validatorErr := validator.Validate(data); validatorErr != nil {
		return nil, errors.Wrapf(xerr.NewErrCodeMsg(xerr.PARAM_VERIFICATION_ERROR, validatorErr.Error()), "人事背调, 参数不正确: %+v", validatorErr)
	}

	// 校验验证码
	codeRedisKey := fmt.Sprintf("%s:%s", "query", data.Mobile)
	cacheCode, err := l.svcCtx.Redis.Get(codeRedisKey)
	if err != nil {
		if errors.Is(err, redis.Nil) {
			return nil, errors.Wrapf(xerr.NewErrMsg("验证码已过期"), "人事背调, 验证码过期: %s", data.Mobile)
		}
		return nil, errors.Wrapf(xerr.NewErrCode(xerr.DB_ERROR), "人事背调, 读取验证码redis缓存失败, mobile: %s, err: %+v", data.Mobile, err)
	}
	if cacheCode != data.Code {
		return nil, errors.Wrapf(xerr.NewErrMsg("验证码不正确"), "人事背调, 验证码不正确: %s", data.Mobile)
	}

	// 3、二要素三要素核验
	twoVerification := service.TwoFactorVerificationRequest{
		Name:   data.Name,
		IDCard: data.IDCard,
	}
	verification, err := l.svcCtx.VerificationService.TwoFactorVerification(twoVerification)
	if err != nil {
		return nil, errors.Wrapf(xerr.NewErrCode(xerr.SERVER_COMMON_ERROR), "人事背调, 二要素验证失败: %+v", err)
	}
	if !verification.Passed {
		return nil, errors.Wrapf(xerr.NewErrCodeMsg(xerr.SERVER_COMMON_ERROR, verification.Err.Error()), "人事背调, 二要素验证不通过: %+v", err)
	}
	product, findProductErr := l.svcCtx.ProductModel.FindOneByProductEn(l.ctx, "backgroundcheck")
	if findProductErr != nil {
		return nil, errors.Wrapf(xerr.NewErrCode(xerr.SERVER_COMMON_ERROR), "人事背调, 查找婚姻产品错误: %+v", findProductErr)
	}
	jsonData, marshalErr := json.Marshal(data)
	if marshalErr != nil {
		return nil, errors.Wrapf(xerr.NewErrCode(xerr.SERVER_COMMON_ERROR), "人事背调, 序列化参数失败: %+v", marshalErr)
	}

	outTradeNo := l.svcCtx.WechatPayService.GenerateOutTradeNo()
	redisKey := fmt.Sprintf("%s:%d:%s", "backgroundcheck", userID, outTradeNo)
	cacheErr := l.svcCtx.Redis.SetexCtx(l.ctx, redisKey, string(jsonData), 1800)
	if cacheErr != nil {
		return nil, cacheErr
	}

	var prepayID string
	var createOrderErr error
	if data.PayMethod == "wechatpay" {
		prepayID, createOrderErr = l.svcCtx.WechatPayService.CreateWechatAppOrder(l.ctx, product.SellPrice, product.Description, outTradeNo)
	} else {
		prepayID, createOrderErr = l.svcCtx.AlipayService.CreateAlipayAppOrder(product.SellPrice, product.Description, outTradeNo)
	}
	if createOrderErr != nil {
		return nil, errors.Wrapf(xerr.NewErrCode(xerr.SERVER_COMMON_ERROR), "人事背调, 创建支付订单失败: %+v", createOrderErr)
	}
	var orderID int64
	transErr := l.svcCtx.OrderModel.Trans(l.ctx, func(ctx context.Context, session sqlx.Session) error {
		order := model.Order{
			OrderNo:         outTradeNo,
			UserId:          userID,
			ProductId:       product.Id,
			PaymentPlatform: data.PayMethod,
			PaymentScene:    "app",
			Amount:          product.SellPrice,
			Status:          "pending",
		}
		orderInsertResult, insertOrderErr := l.svcCtx.OrderModel.Insert(ctx, session, &order)
		if insertOrderErr != nil {
			return errors.Wrapf(xerr.NewErrCode(xerr.SERVER_COMMON_ERROR), "人事背调, 保存订单失败: %+v", insertOrderErr)
		}
		insertedOrderID, lastInsertIdErr := orderInsertResult.LastInsertId()
		if lastInsertIdErr != nil {
			return errors.Wrapf(xerr.NewErrCode(xerr.SERVER_COMMON_ERROR), "人事背调, 获取保存订单ID失败: %+v", lastInsertIdErr)
		}
		orderID = insertedOrderID
		query := model.Query{
			OrderId:     orderID,
			UserId:      userID,
			ProductId:   product.Id,
			QueryParams: req.Data,
			QueryState:  "pending",
		}
		_, insertQueryErr := l.svcCtx.QueryModel.Insert(l.ctx, session, &query)
		if insertQueryErr != nil {
			return insertQueryErr
		}
		return nil
	})
	if transErr != nil {
		return nil, transErr
	}

	return &types.QueryResp{PrepayID: prepayID, OrderID: orderID}, nil
}