feat: add resolver for token verification

Resolves #6

server/db/db.go

@@ -16,7 +16,10 @@ type Manager interface {
 	AddUser(user User) (User, error)
 	GetUsers() ([]User, error)
 	GetUserByEmail(email string) (User, error)
+	UpdateVerificationTime(verifiedAt int64, email string) error
 	AddVerification(verification Verification) (Verification, error)
+	GetVerificationByToken(token string) (Verification, error)
+	DeleteToken(email string) error
 }
 
 type manager struct {

server/db/user.go

@@ -60,3 +60,13 @@ func (mgr *manager) GetUserByEmail(email string) (User, error) {
 
 	return user, nil
 }
+
+func (mgr *manager) UpdateVerificationTime(verifiedAt int64, email string) error {
+	result := mgr.db.Model(&User{}).Where("email = ?", email).Update("email_verified_at", verifiedAt)
+
+	if result.Error != nil {
+		return result.Error
+	}
+
+	return nil
+}

server/db/verification.go

@@ -7,8 +7,8 @@ import (
 )
 
 type Verification struct {
-	ID         uint `gorm:"primaryKey"`
-	Token      string
+	ID         uint   `gorm:"primaryKey"`
+	Token      string `gorm:"index"`
 	Identifier string
 	ExpiresAt  int64
 	CreatedAt  int64  `gorm:"autoCreateTime"`
@@ -28,3 +28,27 @@ func (mgr *manager) AddVerification(verification Verification) (Verification, er
 	}
 	return verification, nil
 }
+
+func (mgr *manager) GetVerificationByToken(token string) (Verification, error) {
+	var verification Verification
+	result := mgr.db.Where("token = ?", token).First(&verification)
+
+	if result.Error != nil {
+		log.Println(`Error getting verification token:`, result.Error)
+		return verification, result.Error
+	}
+
+	return verification, nil
+}
+
+func (mgr *manager) DeleteToken(email string) error {
+	var verification Verification
+	result := mgr.db.Where("email = ?", email).Delete(&verification)
+
+	if result.Error != nil {
+		log.Println(`Error deleting token:`, result.Error)
+		return result.Error
+	}
+
+	return nil
+}