add get like status logic

internal/logic/postservice/get_like_status_logic.go

@@ -1,6 +1,9 @@
 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"
@@ -24,10 +27,49 @@ func NewGetLikeStatusLogic(ctx context.Context, svcCtx *svc.ServiceContext) *Get
 }
 
 // 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.LikeReq) (*tweeting.OKResp, error) {
-	// todo: add your logic here and delete this line
-
-	return &tweeting.OKResp{}, nil
+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
 }

internal/model/mongo/post_likes_model.go

@@ -21,6 +21,7 @@ type (
 		post_likesModel
 		LikeDislike(ctx context.Context, postLike *PostLikes) error
 		FindLikeUsers(ctx context.Context, param *QueryPostLikeReq) ([]*PostLikes, int64, error)
+		FindUIDPostLikeStatus(ctx context.Context, param *QueryUIDPostLikeStatusReq) ([]UIDPostLikeStatusResp, error)
 	}
 
 	QueryPostLikeReq struct {
@@ -30,6 +31,17 @@ type (
 		PageSize  int64           `bson:"page_size"`
 	}
 
+	QueryUIDPostLikeStatusReq struct {
+		Targets  []string        `bson:"target"`
+		LikeType domain.LikeType `bson:"like_type"`
+		UID      string
+	}
+
+	UIDPostLikeStatusResp struct {
+		TargetID   string `json:"target_id"`
+		LikeStatus bool   `json:"like_status"`
+	}
+
 	customPost_likesModel struct {
 		*defaultPost_likesModel
 	}
@@ -117,3 +129,45 @@ func (m *defaultPost_likesModel) FindLikeUsers(ctx context.Context, param *Query
 	// 返回結果集、總數和錯誤信息
 	return results, totalCount, nil
 }
+
+func (m *defaultPost_likesModel) FindUIDPostLikeStatus(ctx context.Context, param *QueryUIDPostLikeStatusReq) ([]UIDPostLikeStatusResp, error) {
+	// 初始化返回結果的切片
+	var results []UIDPostLikeStatusResp
+
+	// 建立篩選條件
+	filter := bson.M{
+		"uid":       param.UID,                    // 篩選指定的 UID
+		"target_id": bson.M{"$in": param.Targets}, // 篩選多個目標 ID
+		"type":      param.LikeType,               // 篩選指定的 LikeType
+	}
+
+	// 查詢符合條件的點讚記錄
+	var postLikes []PostLikes
+	err := m.conn.Find(ctx, &postLikes, filter)
+	if err != nil {
+		return nil, err
+	}
+
+	// 構建一個 map 來保存查詢到的點讚記錄
+	targetLikeMap := make(map[string]bool)
+	for _, like := range postLikes {
+		targetLikeMap[like.TargetID] = true
+	}
+
+	// 構建每個目標的點讚狀態
+	for _, targetID := range param.Targets {
+		likeStatus := UIDPostLikeStatusResp{
+			TargetID:   targetID,
+			LikeStatus: targetLikeMap[targetID], // 如果 map 中有該 targetID，返回 true，否則返回 false
+		}
+
+		// 如果該 targetID 沒有點讚記錄，默認 LikeStatus 為 false
+		if _, found := targetLikeMap[targetID]; !found {
+			likeStatus.LikeStatus = false
+		}
+
+		results = append(results, likeStatus)
+	}
+
+	return results, nil
+}

internal/server/postservice/post_service_server.go

@@ -53,7 +53,7 @@ func (s *PostServiceServer) Like(ctx context.Context, in *tweeting.LikeReq) (*tw
 }
 
 // GetLikeStatus 取得讚/不讚狀態
-func (s *PostServiceServer) GetLikeStatus(ctx context.Context, in *tweeting.LikeReq) (*tweeting.OKResp, error) {
+func (s *PostServiceServer) GetLikeStatus(ctx context.Context, in *tweeting.GetLikeStatusReq) (*tweeting.GetLikeStatusResp, error) {
 	l := postservicelogic.NewGetLikeStatusLogic(ctx, s.svcCtx)
 	return l.GetLikeStatus(in)
 }