app-cloudep-tweeting-service/internal/logic/postservice/get_like_status_logic.go

package postservicelogic

import (
	"app-cloudep-tweeting-service/internal/domain"
	model "app-cloudep-tweeting-service/internal/model/mongo"
	ers "code.30cm.net/digimon/library-go/errs"
	"context"

	"app-cloudep-tweeting-service/gen_result/pb/tweeting"
	"app-cloudep-tweeting-service/internal/svc"

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

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

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

// 這個人按讚的文章列表（輸入UID 以及文章id，返回這個人有沒有對這些文章按讚）
type getLikeStatusReq struct {
	Targets  []string        `json:"targets" validate:"required"`
	LikeType domain.LikeType `json:"like_type" validate:"required,oneof=1 2"`
	UID      string          `json:"uid" validate:"required"`
}

// GetLikeStatus 取得讚/不讚狀態
func (l *GetLikeStatusLogic) GetLikeStatus(in *tweeting.GetLikeStatusReq) (*tweeting.GetLikeStatusResp, error) {
	// 驗證資料
	if err := l.svcCtx.Validate.ValidateAll(&getLikeStatusReq{
		Targets:  in.GetTargetId(),
		LikeType: domain.LikeType(in.GetLikeType()),
		UID:      in.GetUid(),
	}); err != nil {
		return nil, ers.InvalidFormat(err.Error())
	}

	list, err := l.svcCtx.PostLikeModel.FindUIDPostLikeStatus(l.ctx, &model.QueryUIDPostLikeStatusReq{
		Targets:  in.GetTargetId(),
		LikeType: domain.LikeType(in.GetLikeType()),
		UID:      in.GetUid(),
	})
	if err != nil {
		e := domain.PostMongoErrorL(
			logx.WithContext(l.ctx),
			[]logx.LogField{
				{Key: "req", Value: in},
				{Key: "func", Value: "PostModel.FindUIDPostLikeStatus"},
				{Key: "err", Value: err},
			},
			"failed to find uid post like status list").Wrap(err)
		return nil, e
	}
	var result = make([]*tweeting.GetLikeStatusItem, 0, len(list))

	for _, item := range list {
		result = append(result, &tweeting.GetLikeStatusItem{
			TargetId: item.TargetID,
			Status:   item.LikeStatus,
		})
	}

	return &tweeting.GetLikeStatusResp{
		Data: result,
	}, nil
}