package admin_query

import (
	"context"
	"encoding/hex"
	"encoding/json"
	"fmt"
	"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/pkg/errors"
	"github.com/zeromicro/go-zero/core/logx"
	"github.com/zeromicro/go-zero/core/stores/sqlx"
)

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

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

func (l *AdminDeleteQueryFeatureDataLogic) AdminDeleteQueryFeatureData(req *types.AdminDeleteQueryFeatureDataReq) (resp *types.AdminDeleteQueryFeatureDataResp, err error) {
	if req.QueryId == "" {
		return nil, errors.Wrapf(xerr.NewErrMsg("QueryId 不能为空"), "")
	}
	if req.FeatureApiId == "" {
		return nil, errors.Wrapf(xerr.NewErrMsg("feature_api_id 不能为空"), "")
	}

	queryModel, err := l.svcCtx.QueryModel.FindOne(l.ctx, req.QueryId)
	if err != nil {
		if errors.Is(err, model.ErrNotFound) {
			return nil, errors.Wrapf(xerr.NewErrMsg("查询记录不存在"), "")
		}
		return nil, errors.Wrapf(xerr.NewErrCode(xerr.DB_ERROR), "查询报告记录失败, %v", err)
	}

	queryParams, err := decryptQueryParams(l.svcCtx, queryModel)
	if err != nil {
		return nil, errors.Wrapf(xerr.NewErrCode(xerr.SERVER_COMMON_ERROR), "获取查询参数失败, %v", err)
	}

	idCard, _ := queryParams["id_card"].(string)
	if idCard == "" {
		return nil, errors.Wrapf(xerr.NewErrMsg("查询参数中缺少身份证号，无法添加白名单"), "")
	}

	name, _ := queryParams["name"].(string)
	if strings.TrimSpace(name) == "" {
		name = "*"
	}

	adminUserID, err := ctxdata.GetUidFromCtx(l.ctx)
	if err != nil {
		return nil, errors.Wrapf(xerr.NewErrCode(xerr.SERVER_COMMON_ERROR), "获取管理员信息失败, %v", err)
	}

	mainApiId := extractMainApiId(req.FeatureApiId)
	feature, err := l.svcCtx.FeatureModel.FindOneByApiId(l.ctx, mainApiId)
	if err != nil {
		if errors.Is(err, model.ErrNotFound) {
			return nil, errors.Wrapf(xerr.NewErrMsg("模块不存在"), "")
		}
		return nil, errors.Wrapf(xerr.NewErrCode(xerr.DB_ERROR), "查询模块信息失败, %v", err)
	}

	remark := fmt.Sprintf("后台删除报告模块自动同步 query_id=%s feature=%s", req.QueryId, feature.ApiId)
	l.svcCtx.QueryWhitelistSyncService.TrySync(
		l.ctx,
		name,
		idCard,
		[]string{feature.ApiId},
		remark,
	)

	err = l.svcCtx.QueryModel.Trans(l.ctx, func(ctx context.Context, session sqlx.Session) error {
		if wlErr := l.svcCtx.WhitelistService.EnsureFreeWhitelist(ctx, session, idCard, feature, adminUserID, req.QueryId); wlErr != nil {
			return wlErr
		}
		return l.svcCtx.WhitelistService.DeleteFeatureFromQueryData(ctx, session, req.QueryId, req.FeatureApiId)
	})
	if err != nil {
		l.Errorf("Admin 删除查询模块数据失败, queryId=%s, featureApiId=%s, err=%+v", req.QueryId, req.FeatureApiId, err)
		return nil, errors.Wrapf(xerr.NewErrMsg("删除失败，请稍后重试"), "")
	}

	return &types.AdminDeleteQueryFeatureDataResp{
		Success: true,
		Message: "删除成功，已同步本地白名单并尽力同步天远查询白名单（若原本不存在该模块数据，则视为已删除）",
	}, nil
}

func extractMainApiId(featureApiId string) string {
	if idx := strings.Index(featureApiId, "_"); idx > 0 {
		return featureApiId[:idx]
	}
	return featureApiId
}

func decryptQueryParams(svcCtx *svc.ServiceContext, queryModel *model.Query) (map[string]interface{}, error) {
	if queryModel.QueryParams == "" {
		return nil, errors.New("查询参数为空")
	}

	secretKey := svcCtx.Config.Encrypt.SecretKey
	key, decodeErr := hex.DecodeString(secretKey)
	if decodeErr != nil {
		return nil, errors.Wrap(decodeErr, "获取AES密钥失败")
	}

	decryptedParams, decryptErr := crypto.AesDecrypt(queryModel.QueryParams, key)
	if decryptErr != nil {
		return nil, errors.Wrap(decryptErr, "解密查询参数失败")
	}

	var params map[string]interface{}
	if unmarshalErr := json.Unmarshal(decryptedParams, &params); unmarshalErr != nil {
		return nil, errors.Wrap(unmarshalErr, "解析查询参数失败")
	}

	return params, nil
}