package analysisadminlogic

import (
	"context"
	"strings"
	"time"

	"lone-services/pkg/modelbase"
	"lone-services/pkg/utils"
	"lone-services/pkg/validate"
	analysis "lone-services/rpc/analysis/pb"
	storepb "lone-services/rpc/store/pb"
	"lone-services/services/analysis/internal/dao"
	"lone-services/services/analysis/internal/logic/common"
	"lone-services/services/analysis/internal/svc"
	"lone-services/services/analysis/validator"

	"github.com/zeromicro/go-zero/core/logx"
	"google.golang.org/grpc/codes"
	"google.golang.org/grpc/status"
)

const bindValidityLayout = "2006-01-02 15:04:05"

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

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

func (l *BindStoreLogic) BindStore(in *analysis.AdminBindStoreReq) (*analysis.Response, error) {
	var req validator.AdminBindStoreValidator
	if msg := validate.ValidateFromProto(in, &req); msg != utils.StringEmpty {
		return outParams(msg), nil
	}
	if _, fail := common.RequireAdmin(l.ctx); fail != nil {
		return fail, nil
	}

	authList, err := common.ListStoreAuth(req.UserId)
	if err != nil {
		l.Errorf("admin bind store list auth: %v", err)
		return common.FailResponse(utils.Fail), nil
	}
	if len(authList) == utils.NumberZero {
		return common.OkResponse(modelbase.PageResult{Items: []dao.AdminBindStoreItem{}}), nil
	}

	storeMap, err := l.loadStores(authList)
	if err != nil {
		l.Errorf("admin bind store load stores: %v", err)
		return common.FailResponse(utils.Fail), nil
	}

	now := time.Now()
	items := make([]dao.AdminBindStoreItem, 0, len(authList))
	for _, auth := range authList {
		store, ok := storeMap[auth.StoreId]
		if !ok {
			continue
		}
		itemStatus := utils.NumberOne
		if !auth.ValidityTime.IsZero() && auth.ValidityTime.Time.Before(now) {
			itemStatus = utils.NumberTwo
		}
		mobile, _ := utils.DecryptPhone(store.GetUserMobile())
		if mobile == utils.StringEmpty {
			mobile = store.GetUserMobile()
		}
		items = append(items, dao.AdminBindStoreItem{
			Id:           store.GetId(),
			Name:         store.GetName(),
			UserName:     store.GetUserName(),
			UserMobile:   mobile,
			District:     store.GetDistrictIds(),
			DistrictText: storeDistrictText(store),
			ValidityTime: auth.ValidityTime.Format(bindValidityLayout),
			Status:       itemStatus,
		})
	}
	return common.OkResponse(modelbase.PageResult{
		Count: int64(len(items)),
		Items: items,
	}), nil
}

func (l *BindStoreLogic) loadStores(authList []dao.UserStoreAuth) (map[int64]*storepb.InfoResponse, error) {
	ids := make([]int64, 0, len(authList))
	seen := make(map[int64]struct{}, len(authList))
	for _, row := range authList {
		if _, ok := seen[row.StoreId]; ok {
			continue
		}
		seen[row.StoreId] = struct{}{}
		ids = append(ids, row.StoreId)
	}
	if len(ids) == utils.NumberZero {
		return map[int64]*storepb.InfoResponse{}, nil
	}

	svcName := utils.GetConfigString("services.store")
	if svcName == utils.StringEmpty {
		return nil, status.Error(codes.FailedPrecondition, "store service empty")
	}
	cli, err := svc.GetRpcClient(svcName)
	if err != nil {
		return nil, err
	}
	res, err := storepb.NewStoreClient(cli.Conn()).GetInfoByIds(l.ctx, &storepb.IdsRequest{Ids: ids})
	if err != nil {
		if st, ok := status.FromError(err); ok && st.Message() == utils.ErrorNotFund.Msg {
			return map[int64]*storepb.InfoResponse{}, nil
		}
		return nil, err
	}
	out := make(map[int64]*storepb.InfoResponse, len(res.GetItems()))
	for _, item := range res.GetItems() {
		out[item.GetId()] = item
	}
	return out, nil
}

func storeDistrictText(info *storepb.InfoResponse) string {
	if info == nil {
		return utils.StringEmpty
	}
	parts := make([]string, 0, 3)
	for _, name := range []string{info.GetProvinceName(), info.GetCityName(), info.GetCountyName()} {
		if name != utils.StringEmpty {
			parts = append(parts, name)
		}
	}
	return strings.Join(parts, "")
}