Refactor mass data structure

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

data/checkin.go

@@ -0,0 +1,281 @@
+package data
+
+import (
+	"context"
+	"errors"
+	"fmt"
+	"math/rand"
+	"strings"
+	"time"
+
+	"github.com/google/uuid"
+	"github.com/meilisearch/meilisearch-go"
+	"github.com/spf13/viper"
+	"gorm.io/gorm"
+)
+
+type Checkin struct {
+	Id        uint      `json:"id" gorm:"primarykey;autoIncrement"`
+	UUID      uuid.UUID `json:"uuid" gorm:"type:uuid;uniqueIndex;not null"`
+	CheckinId uuid.UUID `json:"checkin_id" gorm:"type:uuid;uniqueIndex;not null"`
+	EventId   uuid.UUID `json:"event_id" gorm:"type:uuid;uniqueIndex:unique_event_user;not null"`
+	UserId    uuid.UUID `json:"user_id" gorm:"type:uuid;uniqueIndex:unique_event_user;not null"`
+	CheckinAt time.Time `json:"checkin_at"`
+}
+
+type CheckinSearchDoc struct {
+	CheckinId string    `json:"checkin_id"`
+	EventId   string    `json:"event_id"`
+	UserId    string    `json:"user_id"`
+	CheckinAt time.Time `json:"checkin_at"`
+}
+
+func (self *Checkin) GetCheckin(userId, eventId uuid.UUID) (*Checkin, error) {
+	var checkin Checkin
+
+	err := Database.
+		Where("user_id = ? AND event_id = ?", userId, eventId).
+		First(&checkin).Error
+
+	if err != nil {
+		if err == gorm.ErrRecordNotFound {
+			return nil, nil
+		}
+		return nil, err
+	}
+
+	return &checkin, err
+}
+
+type CheckinUsers struct {
+	UserId      uuid.UUID `json:"user_id"`
+	CheckinTime time.Time `json:"checkin_time"`
+}
+
+func (self *Checkin) GetUsersByEventID(eventID uuid.UUID) (*[]CheckinUsers, error) {
+	var result []CheckinUsers
+
+	err := Database.
+		Model(&Checkin{}).
+		Select("user_id, checkin_time").
+		Where("event_id = ?", eventID).
+		Order("checkin_time ASC").
+		Scan(&result).Error
+
+	return &result, err
+}
+
+type CheckinEvent struct {
+	EventId     uuid.UUID `json:"event_id"`
+	CheckinTime time.Time `json:"checkin_time"`
+}
+
+func (self *Checkin) GetEventsByUserID(userID uuid.UUID) (*[]CheckinEvent, error) {
+	var result []CheckinEvent
+
+	err := Database.
+		Model(&Checkin{}).
+		Select("event_id, checkin_time").
+		Where("user_id = ?", userID).
+		Order("checkin_time ASC").
+		Scan(&result).Error
+
+	return &result, err
+}
+
+func (self *Checkin) CreateCheckin() error {
+	self.UUID = uuid.New()
+	self.CheckinId = uuid.New()
+
+	// DB transaction for strong consistency
+	err := Database.Transaction(func(tx *gorm.DB) error {
+		if err := tx.Create(&self).Error; err != nil {
+			return err
+		}
+		return nil
+	})
+	if err != nil {
+		return err
+	}
+
+	if err := self.UpdateSearchIndex(); err != nil {
+		return err
+	}
+
+	return nil
+}
+
+type CheckinUpdateInput struct {
+	CheckinTime *time.Time
+}
+
+func (self *Checkin) UpdateCheckin(checkinID uuid.UUID, input CheckinUpdateInput) (*Checkin, error) {
+	var checkin Checkin
+
+	err := Database.Transaction(func(tx *gorm.DB) error {
+		// Lock the row for update
+		if err := tx.
+			Where("checkin_id = ?", checkinID).
+			First(&checkin).Error; err != nil {
+			return err
+		}
+
+		updates := map[string]any{}
+
+		if input.CheckinTime != nil {
+			updates["checkin_time"] = *input.CheckinTime
+		}
+
+		if len(updates) == 0 {
+			return nil
+		}
+
+		if err := tx.
+			Model(&checkin).
+			Updates(updates).Error; err != nil {
+			return err
+		}
+
+		// Reload to ensure struct is up to date
+		return tx.
+			Where("checkin_id = ?", checkinID).
+			First(&checkin).Error
+	})
+
+	if err != nil {
+		return nil, err
+	}
+
+	// Sync to MeiliSearch (eventual consistency)
+	if err := checkin.UpdateSearchIndex(); err != nil {
+		return nil, err
+	}
+
+	return &checkin, nil
+}
+
+func (self *Checkin) SearchUsersByEvent(eventID string) (*meilisearch.SearchResponse, error) {
+	index := MeiliSearch.Index("checkin")
+
+	return index.Search("", &meilisearch.SearchRequest{
+		Filter: "event_id = \"" + eventID + "\"",
+		Sort:   []string{"checkin_time:asc"},
+	})
+}
+
+func (self *Checkin) SearchEventsByUser(userID string) (*meilisearch.SearchResponse, error) {
+	index := MeiliSearch.Index("checkin")
+
+	return index.Search("", &meilisearch.SearchRequest{
+		Filter: "user_id = \"" + userID + "\"",
+		Sort:   []string{"checkin_time:asc"},
+	})
+}
+
+func (self *Checkin) UpdateSearchIndex() error {
+	doc := CheckinSearchDoc{
+		CheckinId: self.CheckinId.String(),
+		EventId:   self.EventId.String(),
+		UserId:    self.UserId.String(),
+		CheckinAt: self.CheckinAt,
+	}
+
+	index := MeiliSearch.Index("checkin")
+
+	primaryKey := "checkin_id"
+	opts := &meilisearch.DocumentOptions{
+		PrimaryKey: &primaryKey,
+	}
+
+	if _, err := index.UpdateDocuments([]CheckinSearchDoc{doc}, opts); err != nil {
+		return err
+	}
+
+	return nil
+}
+
+func (self *Checkin) DeleteSearchIndex() error {
+	index := MeiliSearch.Index("checkin")
+	_, err := index.DeleteDocument(self.CheckinId.String(), nil)
+	return err
+}
+
+func (self *Checkin) GenCheckinCode(eventId uuid.UUID) (*string, error) {
+	ctx := context.Background()
+	ttl := viper.GetDuration("ttl.checkin_code_ttl")
+	rng := rand.New(rand.NewSource(time.Now().UnixNano()))
+
+	for {
+		code := fmt.Sprintf("%06d", rng.Intn(900000)+100000)
+		ok, err := Redis.SetNX(
+			ctx,
+			"checkin_code:"+code,
+			"user_id:"+self.UserId.String()+":event_id:"+eventId.String(),
+			ttl,
+		).Result()
+		if err != nil {
+			return nil, err
+		}
+		if ok {
+			return &code, nil
+		}
+	}
+}
+
+func (self *Checkin) VerifyCheckinCode(checkinCode string) (*uuid.UUID, error) {
+	ctx := context.Background()
+
+	val, err := Redis.Get(ctx, "checkin_code:"+checkinCode).Result()
+	if err != nil {
+		return nil, errors.New("invalid or expired checkin code")
+	}
+
+	// Expected format: user_id:<uuid>:event_id:<uuid>
+	parts := strings.Split(val, ":")
+	if len(parts) != 4 {
+		return nil, errors.New("invalid checkin code format")
+	}
+
+	userIdStr := parts[1]
+	eventIdStr := parts[3]
+
+	userId, err := uuid.Parse(userIdStr)
+	if err != nil {
+		return nil, err
+	}
+
+	eventId, err := uuid.Parse(eventIdStr)
+	if err != nil {
+		return nil, err
+	}
+
+	// DB transaction: ensure checkin is created atomically
+	err = Database.Transaction(func(tx *gorm.DB) error {
+		checkin := &Checkin{
+			UUID:      uuid.New(),
+			CheckinId: uuid.New(),
+			UserId:    userId,
+			EventId:   eventId,
+			CheckinAt: time.Now(),
+		}
+
+		if err := tx.Create(checkin).Error; err != nil {
+			return err
+		}
+
+		// Sync search index after commit
+		go func(c *Checkin) {
+			_ = c.UpdateSearchIndex()
+		}(checkin)
+
+		// Consume the code (one-time use)
+		Redis.Del(ctx, "checkin_code:"+checkinCode)
+		return nil
+	})
+
+	if err != nil {
+		return nil, err
+	}
+
+	return &userId, nil
+}

data/client.go

@@ -0,0 +1 @@
+package data

data/event.go

@@ -1,26 +1,21 @@
 package data
 
 import (
-	"errors"
-	"slices"
 	"time"
 
 	"github.com/go-viper/mapstructure/v2"
 	"github.com/google/uuid"
 	"github.com/meilisearch/meilisearch-go"
-	"gorm.io/datatypes"
 	"gorm.io/gorm"
-	"gorm.io/gorm/clause"
 )
 
 type Event struct {
-	Id          uint                           `json:"id" gorm:"primarykey;autoincrement"`
-	UUID        uuid.UUID                      `json:"uuid" gorm:"type:uuid;uniqueIndex;not null"`
-	EventId     uuid.UUID                      `json:"event_id" gorm:"type:uuid;uniqueIndex;not null"`
-	Name        string                         `json:"name" gorm:"type:varchar(255);index;not null"`
-	StartTime   time.Time                      `json:"start_time" gorm:"index"`
-	EndTime     time.Time                      `json:"end_time" gorm:"index"`
-	JoinedUsers datatypes.JSONSlice[uuid.UUID] `json:"joined_users"`
+	Id        uint      `json:"id" gorm:"primarykey;autoincrement"`
+	UUID      uuid.UUID `json:"uuid" gorm:"type:uuid;uniqueIndex;not null"`
+	EventId   uuid.UUID `json:"event_id" gorm:"type:uuid;uniqueIndex;not null"`
+	Name      string    `json:"name" gorm:"type:varchar(255);index;not null"`
+	StartTime time.Time `json:"start_time" gorm:"index"`
+	EndTime   time.Time `json:"end_time" gorm:"index"`
 }
 
 type EventSearchDoc struct {
@@ -30,93 +25,71 @@ type EventSearchDoc struct {
 	EndTime   time.Time `json:"end_time"`
 }
 
-func (self *Event) GetEventById(eventId uuid.UUID) error {
-	return Database.Transaction(func(tx *gorm.DB) error {
-		if err := tx.Where("event_id = ?", eventId).First(&self).Error; err != nil {
-			return err
+func (self *Event) GetEventById(eventId uuid.UUID) (*Event, error) {
+	var event Event
+
+	err := Database.
+		Where("event_id = ?", eventId).
+		First(&event).Error
+
+	if err != nil {
+		if err == gorm.ErrRecordNotFound {
+			return nil, nil
 		}
-		return nil
-	})
+		return nil, err
+	}
+
+	return &event, nil
 }
 
 func (self *Event) UpdateEventById(eventId uuid.UUID) error {
-	return Database.Transaction(func(tx *gorm.DB) error {
-		if err := tx.Model(&Event{}).Where("event_id = ?", eventId).Updates(&self).Error; err != nil {
+	// DB transaction
+	if err := Database.Transaction(func(tx *gorm.DB) error {
+		// Update by business key
+		if err := tx.
+			Model(&Event{}).
+			Where("event_id = ?", eventId).
+			Updates(self).Error; err != nil {
 			return err
 		}
 
-		// Update event to document index
-		doc := EventSearchDoc{
-			EventId:   self.EventId.String(),
-			Name:      self.Name,
-			StartTime: self.StartTime,
-			EndTime:   self.EndTime,
-		}
-		index := MeiliSearch.Index("event")
-		docPrimaryKey := "event_id"
-		meiliOptions := &meilisearch.DocumentOptions{PrimaryKey: &docPrimaryKey}
-		if _, err := index.UpdateDocuments([]EventSearchDoc{doc}, meiliOptions); err != nil {
-			return err
-		}
+		// Reload to ensure struct is fresh
+		return tx.
+			Where("event_id = ?", eventId).
+			First(self).Error
+	}); err != nil {
+		return err
+	}
 
-		return nil
-	})
+	// Sync search index
+	if err := self.UpdateSearchIndex(); err != nil {
+		return err
+	}
+
+	return nil
 }
 
 func (self *Event) CreateEvent() error {
-	if self.UUID == uuid.Nil {
-		self.UUID = uuid.New()
-	}
-	if self.EventId == uuid.Nil {
-		self.EventId = uuid.New()
+	self.UUID = uuid.New()
+	self.EventId = uuid.New()
+
+	// DB transaction only
+	if err := Database.Transaction(func(tx *gorm.DB) error {
+		if err := tx.Create(self).Error; err != nil {
+			return err
+		}
+		return nil
+	}); err != nil {
+		return err
 	}
 
-	return Database.Transaction(func(tx *gorm.DB) error {
-		if err := tx.Create(&self).Error; err != nil {
-			return err
-		}
+	// Search index (eventual consistency)
+	if err := self.UpdateSearchIndex(); err != nil {
+		// TODO: async retry / log
+		return err
+	}
 
-		// Add event to document index
-		doc := EventSearchDoc{
-			EventId:   self.EventId.String(),
-			Name:      self.Name,
-			StartTime: self.StartTime,
-			EndTime:   self.EndTime,
-		}
-		index := MeiliSearch.Index("event")
-		docPrimaryKey := "event_id"
-		meiliOptions := &meilisearch.DocumentOptions{PrimaryKey: &docPrimaryKey}
-		if _, err := index.AddDocuments([]EventSearchDoc{doc}, meiliOptions); err != nil {
-			return err
-		}
-
-		return nil
-	})
-}
-
-func (self *Event) UserJoinEvent(userId, eventId uuid.UUID) error {
-	return Database.Transaction(func(tx *gorm.DB) error {
-		var event Event
-		if err := tx.Clauses(clause.Locking{Strength: "UPDATE"}).
-			Where("event_id = ?", eventId).
-			First(&event).Error; err != nil {
-			return err
-		}
-
-		// Check if user already joined
-		if slices.Contains(event.JoinedUsers, userId) {
-			return errors.New("user already joined")
-		}
-
-		// Add user to list
-		event.JoinedUsers = append(event.JoinedUsers, userId)
-		if err := tx.Model(&Event{}).Where("event_id = ?", eventId).Update("joined_users", event.JoinedUsers).Error; err != nil {
-			return err
-		}
-
-		*self = event
-		return nil
-	})
+	return nil
 }
 
 func (self *Event) GetFullTable() (*[]Event, error) {
@@ -130,6 +103,8 @@ func (self *Event) GetFullTable() (*[]Event, error) {
 
 func (self *Event) FastListEvents(limit, offset int64) (*[]EventSearchDoc, error) {
 	index := MeiliSearch.Index("event")
+
+	// Fast read from MeiliSearch (no DB involved)
 	result, err := index.Search("", &meilisearch.SearchRequest{
 		Limit:  limit,
 		Offset: offset,
@@ -137,9 +112,38 @@ func (self *Event) FastListEvents(limit, offset int64) (*[]EventSearchDoc, error
 	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() error {
+	doc := EventSearchDoc{
+		EventId:   self.EventId.String(),
+		Name:      self.Name,
+		StartTime: self.StartTime,
+		EndTime:   self.EndTime,
+	}
+	index := MeiliSearch.Index("event")
+
+	primaryKey := "event_id"
+	opts := &meilisearch.DocumentOptions{
+		PrimaryKey: &primaryKey,
+	}
+
+	if _, err := index.UpdateDocuments([]EventSearchDoc{doc}, opts); err != nil {
+		return err
+	}
+
+	return nil
+}
+
+func (self *Event) DeleteSearchIndex() error {
+	index := MeiliSearch.Index("event")
+	_, err := index.DeleteDocument(self.EventId.String(), nil)
+	return err
+}

data/user.go

@@ -1,20 +1,10 @@
 package data
 
 import (
-	"context"
-	"errors"
-	"fmt"
-	"math/rand"
-	"strings"
-	"time"
-
 	"github.com/go-viper/mapstructure/v2"
 	"github.com/google/uuid"
 	"github.com/meilisearch/meilisearch-go"
-	"github.com/spf13/viper"
-	"gorm.io/datatypes"
 	"gorm.io/gorm"
-	"gorm.io/gorm/clause"
 )
 
 // Permission Level
@@ -24,16 +14,15 @@ import (
 // Super User: 30
 
 type User struct {
-	Id              uint              `json:"id" gorm:"primarykey;autoincrement"`
-	UUID            uuid.UUID         `json:"uuid" gorm:"type:uuid;uniqueindex;not null"`
-	UserId          uuid.UUID         `json:"user_id" gorm:"type:uuid;uniqueindex;not null"`
-	Email           string            `json:"email" gorm:"type:varchar(255);uniqueindex;not null"`
-	Type            string            `json:"type" gorm:"type:varchar(32);index;not null"`
-	Nickname        string            `json:"nickname"`
-	Subtitle        string            `json:"subtitle"`
-	Avatar          string            `json:"avatar"`
-	Checkin         datatypes.JSONMap `json:"checkin"`
-	PermissionLevel uint              `json:"permission_level" gorm:"default:10;not null"`
+	Id              uint      `json:"id" gorm:"primarykey;autoincrement"`
+	UUID            uuid.UUID `json:"uuid" gorm:"type:uuid;uniqueindex;not null"`
+	UserId          uuid.UUID `json:"user_id" gorm:"type:uuid;uniqueindex;not null"`
+	Email           string    `json:"email" gorm:"type:varchar(255);uniqueindex;not null"`
+	Type            string    `json:"type" gorm:"type:varchar(32);index;not null"`
+	Nickname        string    `json:"nickname"`
+	Subtitle        string    `json:"subtitle"`
+	Avatar          string    `json:"avatar"`
+	PermissionLevel uint      `json:"permission_level" gorm:"default:10;not null"`
 }
 
 type UserSearchDoc struct {
@@ -46,88 +35,61 @@ type UserSearchDoc struct {
 	PermissionLevel uint   `json:"permission_level"`
 }
 
-func (self *User) GetByEmail(email string) error {
-	if err := Database.Where("email = ?", email).First(&self).Error; err != nil {
-		return err
+func (self *User) GetByEmail(email string) (*User, error) {
+	var user User
+
+	err := Database.
+		Where("email = ?", email).
+		First(&user).Error
+
+	if err != nil {
+		if err == gorm.ErrRecordNotFound {
+			return nil, nil
+		}
+		return nil, err
 	}
-	return nil
+
+	return &user, nil
 }
 
-func (self *User) GetByUserId(userId uuid.UUID) error {
-	if err := Database.Where("user_id = ?", userId).First(&self).Error; err != nil {
-		return err
+func (self *User) GetByUserId(userId uuid.UUID) (*User, error) {
+	var user User
+
+	err := Database.
+		Where("user_id = ?", userId).
+		First(&user).Error
+
+	if err != nil {
+		if err == gorm.ErrRecordNotFound {
+			return nil, nil
+		}
+		return nil, err
 	}
-	return nil
-}
 
-func (self *User) UpdateCheckin(userId, eventId uuid.UUID, time time.Time) error {
-	return Database.Transaction(func(tx *gorm.DB) error {
-		if err := tx.
-			Clauses(clause.Locking{Strength: "UPDATE"}).
-			Where("user_id = ?", userId).
-			First(self).Error; err != nil {
-			return err // if error then rollback
-		}
-
-		self.Checkin = datatypes.JSONMap{eventId.String(): time}
-
-		if err := tx.Save(self).Error; err != nil {
-			return err // rollback
-		}
-
-		// Update user to document index
-		doc := UserSearchDoc{
-			UserId:          self.UserId.String(),
-			Email:           self.Email,
-			Type:            self.Type,
-			Nickname:        self.Nickname,
-			Subtitle:        self.Subtitle,
-			Avatar:          self.Avatar,
-			PermissionLevel: self.PermissionLevel,
-		}
-		index := MeiliSearch.Index("user")
-		docPrimaryKey := "user_id"
-		meiliOptions := &meilisearch.DocumentOptions{PrimaryKey: &docPrimaryKey}
-		if _, err := index.UpdateDocuments([]UserSearchDoc{doc}, meiliOptions); err != nil {
-			return err
-		}
-
-		return nil // commit
-	})
+	return &user, err
 }
 
 func (self *User) Create() error {
-	return Database.Transaction(func(tx *gorm.DB) error {
-		if self.UUID == uuid.Nil {
-			self.UUID = uuid.New()
-		}
-		if self.UserId == uuid.Nil {
-			self.UserId = uuid.New()
-		}
+	self.UUID = uuid.New()
+	self.UserId = uuid.New()
 
+	// DB transaction only
+	if err := Database.Transaction(func(tx *gorm.DB) error {
 		if err := tx.Create(self).Error; err != nil {
 			return err
 		}
-
-		// Create user to document index
-		doc := UserSearchDoc{
-			UserId:          self.UserId.String(),
-			Email:           self.Email,
-			Type:            self.Type,
-			Nickname:        self.Nickname,
-			Subtitle:        self.Subtitle,
-			Avatar:          self.Avatar,
-			PermissionLevel: self.PermissionLevel,
-		}
-		index := MeiliSearch.Index("user")
-		docPrimaryKey := "user_id"
-		meiliOptions := &meilisearch.DocumentOptions{PrimaryKey: &docPrimaryKey}
-		if _, err := index.AddDocuments([]UserSearchDoc{doc}, meiliOptions); err != nil {
-			return err
-		}
-
 		return nil
-	})
+	}); err != nil {
+		return err
+	}
+
+	// Search index (eventual consistency)
+	if err := self.UpdateSearchIndex(); err != nil {
+		// TODO: async retry / log
+		return err
+	}
+
+	return nil
 }
 
 func (self *User) UpdateByUserID(userId uuid.UUID) error {
@@ -150,6 +112,8 @@ func (self *User) GetFullTable() (*[]User, error) {
 
 func (self *User) FastListUsers(limit, offset int64) (*[]UserSearchDoc, error) {
 	index := MeiliSearch.Index("user")
+
+	// Fast read from MeiliSearch, no DB involved
 	result, err := index.Search("", &meilisearch.SearchRequest{
 		Limit:  limit,
 		Offset: offset,
@@ -157,75 +121,44 @@ func (self *User) FastListUsers(limit, offset int64) (*[]UserSearchDoc, error) {
 	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) GenCheckinCode(eventId uuid.UUID) (*string, error) {
-	ctx := context.Background()
-	ttl := viper.GetDuration("ttl.checkin_code_ttl")
-	rng := rand.New(rand.NewSource(time.Now().UnixNano()))
-
-	for {
-		code := fmt.Sprintf("%06d", rng.Intn(900000)+100000)
-		ok, err := Redis.SetNX(
-			ctx,
-			"checkin_code:"+code,
-			"user_id:"+self.UserId.String()+":event_id:"+eventId.String(),
-			ttl,
-		).Result()
-		if err != nil {
-			return nil, err
-		}
-		if ok {
-			return &code, nil
-		}
+func (self *User) UpdateSearchIndex() error {
+	doc := UserSearchDoc{
+		UserId:          self.UserId.String(),
+		Email:           self.Email,
+		Type:            self.Type,
+		Nickname:        self.Nickname,
+		Subtitle:        self.Subtitle,
+		Avatar:          self.Avatar,
+		PermissionLevel: self.PermissionLevel,
 	}
+	index := MeiliSearch.Index("user")
+
+	primaryKey := "user_id"
+	opts := &meilisearch.DocumentOptions{
+		PrimaryKey: &primaryKey,
+	}
+
+	if _, err := index.UpdateDocuments(
+		[]UserSearchDoc{doc},
+		opts,
+	); err != nil {
+		return err
+	}
+
+	return nil
 }
 
-func (self *User) VerifyCheckinCode(checkinCode string) (*uuid.UUID, error) {
-	ctx := context.Background()
-
-	result := Redis.Get(ctx, "checkin_code:"+checkinCode).String()
-
-	if result == "" {
-		return nil, errors.New("invalid or expired checkin code")
-	}
-
-	split := strings.Split(result, ":")
-	if len(split) < 2 {
-		return nil, errors.New("invalid checkin code format")
-	}
-
-	userId := split[0]
-	eventId := split[1]
-
-	var returnedUserId uuid.UUID
-	err := Database.Transaction(func(tx *gorm.DB) error {
-		checkinData := map[string]interface{}{
-			eventId: time.Now(),
-		}
-
-		if err := tx.Model(&User{}).Where("user_id = ?", userId).Updates(map[string]interface{}{
-			"checkin": checkinData,
-		}).Error; err != nil {
-			return err
-		}
-
-		parsedUserId, err := uuid.Parse(userId)
-		if err != nil {
-			return err
-		}
-		returnedUserId = parsedUserId
-		return nil
-	})
-
-	if err != nil {
-		return nil, err
-	}
-
-	return &returnedUserId, nil
+func (self *User) DeleteSearchIndex() error {
+	index := MeiliSearch.Index("user")
+	_, err := index.DeleteDocument(self.UserId.String(), nil)
+	return err
 }

service/auth/handler.go

@@ -4,6 +4,5 @@ import "github.com/gin-gonic/gin"
 
 func Handler(r *gin.RouterGroup) {
 	r.POST("/magic", RequestMagicLink)
-	r.GET("/magic/verify", VerifyMagicLink)
 	r.POST("/refresh", Refresh)
 }

service/auth/magic.go

@@ -81,8 +81,8 @@ func VerifyMagicLink(c *gin.Context) {
 	}
 
 	// Verify if user exists
-	user := new(data.User)
-	err := user.GetByEmail(email)
+	userData := new(data.User)
+	user, err := userData.GetByEmail(email)
 
 	if err != nil {
 		if err == gorm.ErrRecordNotFound {

service/auth/redirect.go

@@ -0,0 +1 @@
+package auth

service/auth/token.go

@@ -0,0 +1 @@
+package auth

service/user/checkin.go

@@ -8,7 +8,7 @@ import (
 )
 
 func Checkin(c *gin.Context) {
-	data := new(data.User)
+	data := new(data.Checkin)
 	userId, ok := c.Get("user_id")
 	if !ok {
 		c.JSON(401, gin.H{
@@ -50,13 +50,29 @@ func Checkin(c *gin.Context) {
 }
 
 func CheckinSubmit(c *gin.Context) {
+	userId, ok := c.Get("user_id")
+	if !ok {
+		c.JSON(403, gin.H{
+			"status": "unauthorized",
+		})
+	}
+
+	userData := new(data.User)
+	userData.GetByUserId(userId.(uuid.UUID))
+	if userData.PermissionLevel <= 20 {
+		c.JSON(403, gin.H{
+			"status": "access denied",
+		})
+		return
+	}
+
 	var req struct {
 		ChekinCode string `json:"checkin_code"`
 	}
 	c.ShouldBindJSON(&req)
 
-	data := new(data.User)
-	userId, err := data.VerifyCheckinCode(req.ChekinCode)
+	checkinData := new(data.Checkin)
+	userId, err := checkinData.VerifyCheckinCode(req.ChekinCode)
 	if err != nil {
 		c.JSON(400, gin.H{
 			"status": "error verify checkin code",
@@ -64,13 +80,6 @@ func CheckinSubmit(c *gin.Context) {
 		return
 	}
 
-	data.GetByUserId(*userId)
-	if data.PermissionLevel <= 20 {
-		c.JSON(403, gin.H{
-			"status": "access denied",
-		})
-	}
-
 	c.JSON(200, gin.H{
 		"status": "success",
 	})

service/user/info.go

@@ -2,14 +2,13 @@ package user
 
 import (
 	"nixcn-cms/data"
-	"time"
 
 	"github.com/gin-gonic/gin"
 	"github.com/google/uuid"
 )
 
 func Info(c *gin.Context) {
-	data := new(data.User)
+	userData := new(data.User)
 	userId, ok := c.Get("user_id")
 	if !ok {
 		c.JSON(404, gin.H{
@@ -19,7 +18,7 @@ func Info(c *gin.Context) {
 	}
 
 	// Get user from database
-	err := data.GetByUserId(userId.(uuid.UUID))
+	user, err := userData.GetByUserId(userId.(uuid.UUID))
 	if err != nil {
 		c.JSON(404, gin.H{
 			"status": "user not found",
@@ -27,21 +26,13 @@ func Info(c *gin.Context) {
 		return
 	}
 
-	// Set time nil if time is zero
-	for k, v := range data.Checkin {
-		if t, ok := v.(time.Time); ok && t.IsZero() {
-			data.Checkin[k] = nil
-		}
-	}
-
 	c.JSON(200, gin.H{
-		"user_id":          data.UserId,
-		"email":            data.Email,
-		"type":             data.Type,
-		"nickname":         data.Nickname,
-		"subtitle":         data.Subtitle,
-		"avatar":           data.Avatar,
-		"checkin":          data.Checkin,
-		"permission_level": data.PermissionLevel,
+		"user_id":          user.UserId,
+		"email":            user.Email,
+		"type":             user.Type,
+		"nickname":         user.Nickname,
+		"subtitle":         user.Subtitle,
+		"avatar":           user.Avatar,
+		"permission_level": user.PermissionLevel,
 	})
 }

service/user/query.go

@@ -1,11 +1,13 @@
 package user
 
 import (
+	"errors"
 	"nixcn-cms/data"
 	"time"
 
 	"github.com/gin-gonic/gin"
 	"github.com/google/uuid"
+	"gorm.io/gorm"
 )
 
 func Query(c *gin.Context) {
@@ -14,29 +16,46 @@ func Query(c *gin.Context) {
 		c.JSON(400, gin.H{"status": "could not found user_id"})
 		return
 	}
-	eventId, ok := c.GetQuery("event_id")
+
+	eventIdOrig, ok := c.GetQuery("event_id")
 	if !ok {
 		c.JSON(400, gin.H{"status": "could not found event_id"})
 		return
 	}
-
-	data := new(data.User)
-	err := data.GetByUserId(userId.(uuid.UUID))
+	eventId, err := uuid.Parse(eventIdOrig)
 	if err != nil {
-		c.JSON(404, gin.H{"status": "cannot found user"})
-		return
-	}
-	if data.Checkin[eventId] == nil {
-		c.JSON(404, gin.H{"status": "cannot found user checked in"})
+		c.JSON(400, gin.H{"status": "event_id is not valid"})
 		return
 	}
 
-	var checkinTime *time.Time
-	if data.Checkin[eventId].(*time.Time).IsZero() {
-		checkinTime = nil
-	} else {
-		checkinTime = data.Checkin[eventId].(*time.Time)
+	checkinData := new(data.Checkin)
+	checkin, err := checkinData.GetCheckin(userId.(uuid.UUID), eventId)
+	if err != nil {
+		c.JSON(500, gin.H{"status": "database error"})
+		return
+	} else if checkin == nil {
+		c.JSON(404, gin.H{"status": "event checkin record not found"})
+		return
 	}
+
+	checkinTime := time.Now()
+	checkinData.EventId = eventId
+	checkinData.UserId = userId.(uuid.UUID)
+	checkinData.CheckinAt = checkinTime
+	err = checkinData.CreateCheckin()
+	if err != nil {
+		if errors.Is(err, gorm.ErrDuplicatedKey) {
+			c.JSON(409, gin.H{
+				"status": "already checked in",
+			})
+			return
+		}
+		c.JSON(500, gin.H{
+			"status": "database error",
+		})
+		return
+	}
+
 	c.JSON(200, gin.H{
 		"checkin_time": checkinTime,
 	})