Remove search engine, add event list api

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

data/event.go

@@ -4,9 +4,7 @@ import (
 	"context"
 	"time"
 
-	"github.com/go-viper/mapstructure/v2"
 	"github.com/google/uuid"
-	"github.com/meilisearch/meilisearch-go"
 	"gorm.io/gorm"
 )
 
@@ -23,7 +21,7 @@ type Event struct {
 	EnableKYC   bool      `json:"enable_kyc" gorm:"not null"`
 }
 
-type EventSearchDoc struct {
+type EventIndexDoc struct {
 	EventId     string    `json:"event_id"`
 	Name        string    `json:"name"`
 	Type        string    `json:"type"`
@@ -68,11 +66,6 @@ func (self *Event) UpdateEventById(ctx context.Context, eventId uuid.UUID) error
 		return err
 	}
 
-	// Sync search index
-	if err := self.UpdateSearchIndex(ctx); err != nil {
-		return err
-	}
-
 	return nil
 }
 
@@ -90,12 +83,6 @@ func (self *Event) Create(ctx context.Context) error {
 		return err
 	}
 
-	// Search index (eventual consistency)
-	if err := self.UpdateSearchIndex(ctx); err != nil {
-		// TODO: async retry / log
-		return err
-	}
-
 	return nil
 }
 
@@ -108,51 +95,19 @@ func (self *Event) GetFullTable(ctx context.Context) (*[]Event, error) {
 	return &events, err
 }
 
-func (self *Event) FastListEvents(ctx context.Context, limit, offset int64) (*[]EventSearchDoc, error) {
-	index := MeiliSearch.Index("event")
+func (self *Event) FastListEvents(ctx context.Context, limit, offset int64) (*[]EventIndexDoc, error) {
+	var results []EventIndexDoc
+
+	err := Database.WithContext(ctx).
+		Model(&Event{}).
+		Select("event_id", "name", "type", "description", "start_time", "end_time").
+		Limit(int(limit)).
+		Offset(int(offset)).
+		Scan(&results).Error
 
-	// Fast read from MeiliSearch (no DB involved)
-	result, err := index.SearchWithContext(ctx, "", &meilisearch.SearchRequest{
-		Limit:  limit,
-		Offset: offset,
-	})
 	if err != nil {
 		return nil, err
 	}
 
-	var list []EventSearchDoc
-	if err := mapstructure.Decode(result.Hits, &list); err != nil {
-		return nil, err
-	}
-
-	return &list, nil
-}
-
-func (self *Event) UpdateSearchIndex(ctx context.Context) error {
-	doc := EventSearchDoc{
-		EventId:     self.EventId.String(),
-		Name:        self.Name,
-		Type:        self.Type,
-		Description: self.Description,
-		StartTime:   self.StartTime,
-		EndTime:     self.EndTime,
-	}
-	index := MeiliSearch.Index("event")
-
-	primaryKey := "event_id"
-	opts := &meilisearch.DocumentOptions{
-		PrimaryKey: &primaryKey,
-	}
-
-	if _, err := index.UpdateDocumentsWithContext(ctx, []EventSearchDoc{doc}, opts); err != nil {
-		return err
-	}
-
-	return nil
-}
-
-func (self *Event) DeleteSearchIndex(ctx context.Context) error {
-	index := MeiliSearch.Index("event")
-	_, err := index.DeleteDocumentWithContext(ctx, self.EventId.String(), nil)
-	return err
+	return &results, nil
 }