Add isjoined to event info and event list

Signed-off-by: Asai Neko <sugar@sne.moe>

service/service_event/get_event_info.go

@@ -7,6 +7,7 @@ import (
 	"nixcn-cms/service/shared"
 
 	"github.com/google/uuid"
+	"gorm.io/gorm"
 )
 
 type EventInfoData struct {
@@ -15,6 +16,7 @@ type EventInfoData struct {
 
 type EventInfoPayload struct {
 	Context context.Context
+	UserId  uuid.UUID
 	Data    *EventInfoData
 }
 
@@ -87,6 +89,32 @@ func (self *EventServiceImpl) GetEventInfo(payload *EventInfoPayload) (result *E
 		return
 	}
 
+	var isJoined bool
+	joinedInfo, err := new(data.Attendance).GetAttendance(payload.Context, payload.UserId, payload.Data.EventId)
+	if err != nil && err != gorm.ErrRecordNotFound {
+		exception := new(exception.Builder).
+			SetStatus(exception.StatusUser).
+			SetService(exception.ServiceEvent).
+			SetEndpoint(exception.EndpointEventServiceInfo).
+			SetType(exception.TypeCommon).
+			SetOriginal(exception.CommonErrorDatabase).
+			SetError(err).
+			Throw(payload.Context)
+
+		result = &EventInfoResult{
+			Common: shared.CommonResult{
+				HttpCode:  500,
+				Exception: exception,
+			},
+		}
+
+		return
+	} else if err == gorm.ErrRecordNotFound {
+		isJoined = false
+	} else if joinedInfo.AttendanceId != uuid.Nil {
+		isJoined = true
+	}
+
 	result = &EventInfoResult{
 		Common: shared.CommonResult{
 			HttpCode: 200,
@@ -106,7 +134,8 @@ func (self *EventServiceImpl) GetEventInfo(payload *EventInfoPayload) (result *E
 			StartTime:    event.StartTime,
 			EndTime:      event.EndTime,
 			Thumbnail:    event.Thumbnail,
-			RequireKyc:   event.EnableKYC,
+			EnableKYC:    event.EnableKYC,
+			IsJoined:     isJoined,
 			JoinCount:    joinCount,
 			CheckinCount: checkinCount,
 		},

service/service_event/list_events.go

@@ -6,12 +6,19 @@ import (
 	"nixcn-cms/internal/exception"
 	"nixcn-cms/service/shared"
 	"strconv"
+
+	"github.com/google/uuid"
 )
 
+type EventListData struct {
+	Limit  *string `json:"limit"`
+	Offset *string `json:"offset"`
+}
+
 type EventListPayload struct {
 	Context context.Context
-	Limit   *string
-	Offset  *string
+	UserId  uuid.UUID
+	Data    *EventListData
 }
 
 type EventListResult struct {
@@ -21,14 +28,14 @@ type EventListResult struct {
 
 func (self *EventServiceImpl) ListEvents(payload *EventListPayload) (result *EventListResult) {
 	var limit string
-	if payload.Limit == nil || *payload.Limit == "" {
+	if payload.Data.Limit == nil || *payload.Data.Limit == "" {
 		limit = "20"
 	} else {
-		limit = *payload.Limit
+		limit = *payload.Data.Limit
 	}
 
 	var offset string
-	if payload.Offset == nil || *payload.Offset == "" {
+	if payload.Data.Offset == nil || *payload.Data.Offset == "" {
 		exception := new(exception.Builder).
 			SetStatus(exception.StatusUser).
 			SetService(exception.ServiceEvent).
@@ -46,9 +53,10 @@ func (self *EventServiceImpl) ListEvents(payload *EventListPayload) (result *Eve
 			Data: nil,
 		}
 	} else {
-		offset = *payload.Offset
+		offset = *payload.Data.Offset
 	}
 
+	// 3. 转换数字
 	limitNum, err := strconv.Atoi(limit)
 	if err != nil {
 		exc := new(exception.Builder).
@@ -110,6 +118,44 @@ func (self *EventServiceImpl) ListEvents(payload *EventListPayload) (result *Eve
 		}
 	}
 
+	if eventList != nil && len(*eventList) > 0 {
+		var eventIds []uuid.UUID
+		for _, e := range *eventList {
+			parsedId, parseErr := uuid.Parse(e.EventId)
+			if parseErr == nil {
+				eventIds = append(eventIds, parsedId)
+			}
+		}
+
+		joinedMap, err := new(data.Attendance).GetJoinedEventIDs(payload.Context, payload.UserId, eventIds)
+
+		if err != nil {
+			exc := new(exception.Builder).
+				SetStatus(exception.StatusServer).
+				SetService(exception.ServiceEvent).
+				SetEndpoint(exception.EndpointEventServiceList).
+				SetType(exception.TypeCommon).
+				SetOriginal(exception.CommonErrorDatabase).
+				SetError(err).
+				Throw(payload.Context)
+
+			return &EventListResult{
+				Common: shared.CommonResult{
+					HttpCode:  500,
+					Exception: exc,
+				},
+				Data: nil,
+			}
+		}
+
+		for i := range *eventList {
+			currentIdStr := (*eventList)[i].EventId
+			currentIdUuid, _ := uuid.Parse(currentIdStr)
+
+			(*eventList)[i].IsJoined = joinedMap[currentIdUuid]
+		}
+	}
+
 	successExc := new(exception.Builder).
 		SetStatus(exception.StatusSuccess).
 		SetService(exception.ServiceEvent).