Remove search engine, add event list api

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

service/service_event/list_events.go

@@ -0,0 +1,131 @@
+package service_event
+
+import (
+	"context"
+	"nixcn-cms/data"
+	"nixcn-cms/internal/exception"
+	"nixcn-cms/service/shared"
+	"strconv"
+)
+
+type EventListPayload struct {
+	Context context.Context
+	Limit   *string
+	Offset  *string
+}
+
+type EventListResult struct {
+	Common shared.CommonResult
+	Data   *[]data.EventIndexDoc `json:"event_list"`
+}
+
+func (self *EventServiceImpl) ListEvents(payload *EventListPayload) (result *EventListResult) {
+	var limit string
+	if payload.Limit == nil || *payload.Limit == "" {
+		limit = "20"
+	} else {
+		limit = *payload.Limit
+	}
+
+	var offset string
+	if payload.Offset == nil || *payload.Offset == "" {
+		exc := new(exception.Builder).
+			SetStatus(exception.StatusUser).
+			SetService(exception.ServiceEvent).
+			SetEndpoint(exception.EndpointEventServiceList).
+			SetType(exception.TypeCommon).
+			SetOriginal(exception.CommonErrorInvalidInput).
+			SetError(nil).
+			Throw(payload.Context)
+
+		return &EventListResult{
+			Common: shared.CommonResult{
+				HttpCode:  400,
+				Exception: exc,
+			},
+			Data: nil,
+		}
+	} else {
+		offset = *payload.Offset
+	}
+
+	limitNum, err := strconv.Atoi(limit)
+	if err != nil {
+		exc := new(exception.Builder).
+			SetStatus(exception.StatusUser).
+			SetService(exception.ServiceEvent).
+			SetEndpoint(exception.EndpointEventServiceList).
+			SetType(exception.TypeCommon).
+			SetOriginal(exception.CommonErrorInvalidInput).
+			SetError(err).
+			Throw(payload.Context)
+
+		return &EventListResult{
+			Common: shared.CommonResult{
+				HttpCode:  400,
+				Exception: exc,
+			},
+			Data: nil,
+		}
+	}
+
+	offsetNum, err := strconv.Atoi(offset)
+	if err != nil {
+		exc := new(exception.Builder).
+			SetStatus(exception.StatusUser).
+			SetService(exception.ServiceEvent).
+			SetEndpoint(exception.EndpointEventServiceList).
+			SetType(exception.TypeCommon).
+			SetOriginal(exception.CommonErrorInvalidInput).
+			SetError(err).
+			Throw(payload.Context)
+
+		return &EventListResult{
+			Common: shared.CommonResult{
+				HttpCode:  400,
+				Exception: exc,
+			},
+			Data: nil,
+		}
+	}
+
+	eventList, err := new(data.Event).
+		FastListEvents(payload.Context, int64(limitNum), int64(offsetNum))
+	if err != nil {
+		exc := new(exception.Builder).
+			SetStatus(exception.StatusServer).
+			SetService(exception.ServiceEvent).
+			SetEndpoint(exception.EndpointEventServiceList).
+			SetType(exception.TypeSpecific).
+			SetOriginal(exception.EventListDatabaseFailed).
+			SetError(err).
+			Throw(payload.Context)
+
+		return &EventListResult{
+			Common: shared.CommonResult{
+				HttpCode:  500,
+				Exception: exc,
+			},
+			Data: nil,
+		}
+	}
+
+	successExc := new(exception.Builder).
+		SetStatus(exception.StatusSuccess).
+		SetService(exception.ServiceEvent).
+		SetEndpoint(exception.EndpointEventServiceList).
+		SetType(exception.TypeCommon).
+		SetOriginal(exception.CommonSuccess).
+		SetError(nil).
+		Throw(payload.Context)
+
+	result = &EventListResult{
+		Common: shared.CommonResult{
+			HttpCode:  200,
+			Exception: successExc,
+		},
+		Data: eventList,
+	}
+
+	return
+}