Remove search engine, add event list api

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

data/user.go

@@ -3,9 +3,7 @@ package data
 import (
 	"context"
 
-	"github.com/go-viper/mapstructure/v2"
 	"github.com/google/uuid"
-	"github.com/meilisearch/meilisearch-go"
 	"gorm.io/gorm"
 )
 
@@ -23,7 +21,7 @@ type User struct {
 	AllowPublic     bool      `json:"allow_public" gorm:"default:false;not null"`
 }
 
-type UserSearchDoc struct {
+type UserIndexDoc struct {
 	UserId   string `json:"user_id"`
 	Email    string `json:"email"`
 	Username string `json:"username"`
@@ -118,12 +116,6 @@ func (self *User) 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
 }
 
@@ -139,8 +131,7 @@ func (self *User) UpdateByUserID(ctx context.Context, userId *uuid.UUID, updates
 		if err := tx.Where("user_id = ?", userId).First(&updatedUser).Error; err != nil {
 			return err
 		}
-
-		return updatedUser.UpdateSearchIndex(&ctx)
+		return nil
 	})
 }
 
@@ -153,55 +144,19 @@ func (self *User) GetFullTable(ctx context.Context) (*[]User, error) {
 	return &users, nil
 }
 
-func (self *User) FastListUsers(ctx context.Context, limit, offset *int64) (*[]UserSearchDoc, error) {
-	index := MeiliSearch.Index("user")
+func (self *User) FastListUsers(ctx context.Context, limit, offset *int) (*[]UserIndexDoc, error) {
+	var results []UserIndexDoc
+
+	query := Database.WithContext(ctx).Model(&User{})
+
+	err := query.Select("user_id", "email", "username", "nickname", "subtitle", "avatar").
+		Limit(*limit).
+		Offset(*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 []UserSearchDoc
-	if err := mapstructure.Decode(result.Hits, &list); err != nil {
-		return nil, err
-	}
-
-	return &list, nil
-}
-
-func (self *User) UpdateSearchIndex(ctx *context.Context) error {
-	doc := UserSearchDoc{
-		UserId:   self.UserId.String(),
-		Email:    self.Email,
-		Username: self.Username,
-		Nickname: self.Nickname,
-		Subtitle: self.Subtitle,
-		Avatar:   self.Avatar,
-	}
-	index := MeiliSearch.Index("user")
-
-	primaryKey := "user_id"
-	opts := &meilisearch.DocumentOptions{
-		PrimaryKey: &primaryKey,
-	}
-
-	if _, err := index.UpdateDocumentsWithContext(
-		*ctx,
-		[]UserSearchDoc{doc},
-		opts,
-	); err != nil {
-		return err
-	}
-
-	return nil
-}
-
-func (self *User) DeleteSearchIndex(ctx *context.Context) error {
-	index := MeiliSearch.Index("user")
-	_, err := index.DeleteDocumentWithContext(*ctx, self.UserId.String(), nil)
-	return err
+	return &results, nil
 }