fix: fallback to username if chars in name are not supported for avatars

backend/internal/model/user.go

@@ -8,7 +8,6 @@ import (
 	"github.com/go-webauthn/webauthn/webauthn"
 
 	datatype "github.com/pocket-id/pocket-id/backend/internal/model/types"
-	"github.com/pocket-id/pocket-id/backend/internal/utils"
 )
 
 type User struct {
@@ -88,16 +87,6 @@ func (u User) FullName() string {
 	return u.Username
 }
 
-func (u User) Initials() string {
-	first := utils.GetFirstCharacter(u.FirstName)
-	last := utils.GetFirstCharacter(u.LastName)
-	if first != "" || last != "" {
-		return strings.ToUpper(first + last)
-	}
-
-	return strings.ToUpper(utils.GetFirstCharacter(u.Username))
-}
-
 func (u User) LastModified() time.Time {
 	if u.UpdatedAt != nil {
 		return u.UpdatedAt.ToTime()

backend/internal/model/user_test.go

@@ -1,52 +0,0 @@
-package model
-
-import (
-	"testing"
-
-	"github.com/stretchr/testify/assert"
-)
-
-func TestUserInitials(t *testing.T) {
-	tests := []struct {
-		name     string
-		user     User
-		expected string
-	}{
-		{
-			name:     "first and last name",
-			user:     User{Username: "username", FirstName: "John", LastName: "Doe"},
-			expected: "JD",
-		},
-		{
-			name:     "first name only",
-			user:     User{Username: "username", FirstName: "John"},
-			expected: "J",
-		},
-		{
-			name:     "last name only",
-			user:     User{Username: "username", LastName: "Doe"},
-			expected: "D",
-		},
-		{
-			name:     "ASCII username",
-			user:     User{Username: "username"},
-			expected: "U",
-		},
-		{
-			name:     "single-character username",
-			user:     User{Username: "a"},
-			expected: "A",
-		},
-		{
-			name:     "empty username",
-			user:     User{},
-			expected: "",
-		},
-	}
-
-	for _, tt := range tests {
-		t.Run(tt.name, func(t *testing.T) {
-			assert.Equal(t, tt.expected, tt.user.Initials())
-		})
-	}
-}