migrate from github

internal/media/avatar.go

@@ -0,0 +1,39 @@
+package media
+
+import (
+	"strings"
+)
+
+const (
+	MaxAvatarSize          = 5 * 1024 * 1024
+	defaultAvatarExtension = ".jpg"
+)
+
+var avatarContentTypes = map[string]string{
+	"image/jpeg": ".jpg",
+	"image/png":  ".png",
+	"image/webp": ".webp",
+}
+
+func NormalizeAvatarContentType(file []byte, provided string) string {
+	return NormalizeContentTypeByAllowed(file, provided, avatarContentTypes)
+}
+
+func IsSupportedAvatarContentType(contentType string) bool {
+	return IsContentTypeAllowed(contentType, avatarContentTypes)
+}
+
+func ResolveAvatarExt(filename, contentType string) string {
+	return ResolveExtension(filename, contentType, avatarContentTypes, defaultAvatarExtension)
+}
+
+func BuildAvatarObjectKey(userExternalID string, avatarVersion int64, ext string) string {
+	return BuildVersionedObjectKey("avatars", userExternalID, avatarVersion, ext)
+}
+
+func BuildAvatarURL(userExternalID, objectKey string, avatarVersion int64) string {
+	if strings.TrimSpace(userExternalID) == "" || strings.TrimSpace(objectKey) == "" {
+		return ""
+	}
+	return BuildStorageURL(objectKey)
+}