package query

import (
	"context"
	"encoding/hex"
	"encoding/json"
	"strings"
	"ycc-server/app/main/api/internal/svc"
	"ycc-server/app/main/api/internal/types"
	"ycc-server/app/main/model"
	"ycc-server/common/ctxdata"
	"ycc-server/common/xerr"
	"ycc-server/pkg/lzkit/crypto"

	"github.com/Masterminds/squirrel"
	"github.com/jinzhu/copier"
	"github.com/pkg/errors"
	"github.com/zeromicro/go-zero/core/logx"
)

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

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

func (l *QueryListLogic) QueryList(req *types.QueryListReq) (resp *types.QueryListResp, err error) {
	userID, getUidErr := ctxdata.GetUidFromCtx(l.ctx)
	if getUidErr != nil {
		return nil, errors.Wrapf(xerr.NewErrCode(xerr.DB_ERROR), "报告列表查询, 获取用户信息失败, %+v", getUidErr)
	}

	// 直接构建查询query表的条件
	build := l.svcCtx.QueryModel.SelectBuilder().Where(squirrel.Eq{
		"user_id": userID,
	})

	// 直接从query表分页查询
	queryList, total, err := l.svcCtx.QueryModel.FindPageListByPageWithTotal(l.ctx, build, req.Page, req.PageSize, "create_time DESC")
	if err != nil {
		return nil, errors.Wrapf(xerr.NewErrCode(xerr.DB_ERROR), "报告列表查询, 查找报告列表错误, %+v", err)
	}

	var list []types.Query
	if len(queryList) > 0 {
		for _, queryModel := range queryList {
			var query types.Query
			query.CreateTime = queryModel.CreateTime.Format("2006-01-02 15:04:05")
			query.UpdateTime = queryModel.UpdateTime.Format("2006-01-02 15:04:05")
			copyErr := copier.Copy(&query, queryModel)
			if copyErr != nil {
				return nil, errors.Wrapf(xerr.NewErrCode(xerr.SERVER_COMMON_ERROR), "报告列表查询, 报告结构体复制失败, %+v", err)
			}
			product, findProductErr := l.svcCtx.ProductModel.FindOne(l.ctx, queryModel.ProductId)
			if findProductErr != nil {
				return nil, errors.Wrapf(xerr.NewErrCode(xerr.SERVER_COMMON_ERROR), "报告列表查询, 获取商品信息失败, %+v", err)
			}

			// 检查订单状态，如果订单已退款，则设置查询状态为已退款
			order, findOrderErr := l.svcCtx.OrderModel.FindOne(l.ctx, queryModel.OrderId)
			if findOrderErr != nil {
				return nil, errors.Wrapf(xerr.NewErrCode(xerr.DB_ERROR), "报告列表查询, 查询订单信息失败, %+v", findOrderErr)
			}
			if order.Status == model.OrderStatusRefunded {
				query.QueryState = model.QueryStateRefunded
			}

			// 解密并脱敏params
			var params map[string]interface{}
			if queryModel.QueryParams != "" {
				secretKey := l.svcCtx.Config.Encrypt.SecretKey
				key, decodeErr := hex.DecodeString(secretKey)
				if decodeErr != nil {
					return nil, errors.Wrapf(xerr.NewErrCode(xerr.SERVER_COMMON_ERROR), "报告列表查询, 获取AES密钥失败, %+v", decodeErr)
				}
				decryptedData, decryptErr := crypto.AesDecrypt(queryModel.QueryParams, key)
				if decryptErr != nil {
					return nil, errors.Wrapf(xerr.NewErrCode(xerr.SERVER_COMMON_ERROR), "报告列表查询, 解密查询参数失败, %+v", decryptErr)
				}
				unmarshalErr := json.Unmarshal(decryptedData, &params)
				if unmarshalErr != nil {
					return nil, errors.Wrapf(xerr.NewErrCode(xerr.SERVER_COMMON_ERROR), "报告列表查询, 解析查询参数失败, %+v", unmarshalErr)
				}
				// 脱敏处理
				params = l.desensitizeParams(params)
			} else {
				params = make(map[string]interface{})
			}

			query.ProductName = product.ProductName
			query.Product = product.ProductEn
			query.Params = params
			query.Price = order.Amount
			list = append(list, query)
		}
	}

	return &types.QueryListResp{
		Total: total,
		List:  list,
	}, nil
}

// desensitizeParams 对敏感数据进行脱敏处理
func (l *QueryListLogic) desensitizeParams(params map[string]interface{}) map[string]interface{} {
	result := make(map[string]interface{})
	for key, value := range params {
		if strValue, ok := value.(string); ok {
			keyLower := strings.ToLower(key)
			if (strings.Contains(keyLower, "name") || strings.Contains(keyLower, "姓名")) && len(strValue) > 0 {
				result[key] = l.maskName(strValue)
			} else if (strings.Contains(keyLower, "idcard") || strings.Contains(keyLower, "id_card") || strings.Contains(keyLower, "身份证")) && len(strValue) > 10 {
				result[key] = l.maskIDCard(strValue)
			} else if (strings.Contains(keyLower, "mobile") || strings.Contains(keyLower, "phone") || strings.Contains(keyLower, "手机")) && len(strValue) >= 8 {
				result[key] = l.maskPhone(strValue)
			} else {
				result[key] = strValue
			}
		} else {
			result[key] = value
		}
	}
	return result
}

// maskName 姓名脱敏
func (l *QueryListLogic) maskName(name string) string {
	runes := []rune(name)
	length := len(runes)
	if length <= 1 {
		return name
	}
	if length == 2 {
		return string(runes[0]) + "*"
	}
	return string(runes[0]) + strings.Repeat("*", length-2) + string(runes[length-1])
}

// maskIDCard 身份证号脱敏
func (l *QueryListLogic) maskIDCard(idCard string) string {
	length := len(idCard)
	if length <= 10 {
		return idCard
	}
	// 保留前3位和后4位
	if length > 7 {
		return idCard[:3] + strings.Repeat("*", length-7) + idCard[length-4:]
	}
	return idCard
}

// maskPhone 手机号脱敏
func (l *QueryListLogic) maskPhone(phone string) string {
	length := len(phone)
	if length < 8 {
		return phone
	}
	// 保留前3位和后4位
	if length > 7 {
		return phone[:3] + strings.Repeat("*", length-7) + phone[length-4:]
	}
	return phone
}