1 files changed, 69 insertions, 0 deletions
diff --git a/models/quota/limit_subject.go b/models/quota/limit_subject.go
new file mode 100644
index 0000000..4a49d33
--- /dev/null
+++ b/models/quota/limit_subject.go
@@ -0,0 +1,69 @@
+// Copyright 2024 The Forgejo Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package quota
+
+import "fmt"
+
+type (
+	LimitSubject  int
+	LimitSubjects []LimitSubject
+)
+
+const (
+	LimitSubjectNone LimitSubject = iota
+	LimitSubjectSizeAll
+	LimitSubjectSizeReposAll
+	LimitSubjectSizeReposPublic
+	LimitSubjectSizeReposPrivate
+	LimitSubjectSizeGitAll
+	LimitSubjectSizeGitLFS
+	LimitSubjectSizeAssetsAll
+	LimitSubjectSizeAssetsAttachmentsAll
+	LimitSubjectSizeAssetsAttachmentsIssues
+	LimitSubjectSizeAssetsAttachmentsReleases
+	LimitSubjectSizeAssetsArtifacts
+	LimitSubjectSizeAssetsPackagesAll
+	LimitSubjectSizeWiki
+
+	LimitSubjectFirst = LimitSubjectSizeAll
+	LimitSubjectLast  = LimitSubjectSizeWiki
+)
+
+var limitSubjectRepr = map[string]LimitSubject{
+	"none":                             LimitSubjectNone,
+	"size:all":                         LimitSubjectSizeAll,
+	"size:repos:all":                   LimitSubjectSizeReposAll,
+	"size:repos:public":                LimitSubjectSizeReposPublic,
+	"size:repos:private":               LimitSubjectSizeReposPrivate,
+	"size:git:all":                     LimitSubjectSizeGitAll,
+	"size:git:lfs":                     LimitSubjectSizeGitLFS,
+	"size:assets:all":                  LimitSubjectSizeAssetsAll,
+	"size:assets:attachments:all":      LimitSubjectSizeAssetsAttachmentsAll,
+	"size:assets:attachments:issues":   LimitSubjectSizeAssetsAttachmentsIssues,
+	"size:assets:attachments:releases": LimitSubjectSizeAssetsAttachmentsReleases,
+	"size:assets:artifacts":            LimitSubjectSizeAssetsArtifacts,
+	"size:assets:packages:all":         LimitSubjectSizeAssetsPackagesAll,
+	"size:assets:wiki":                 LimitSubjectSizeWiki,
+}
+
+func (subject LimitSubject) String() string {
+	for repr, limit := range limitSubjectRepr {
+		if limit == subject {
+			return repr
+		}
+	}
+	return "<unknown>"
+}
+
+func (subjects LimitSubjects) GoString() string {
+	return fmt.Sprintf("%T{%+v}", subjects, subjects)
+}
+
+func ParseLimitSubject(repr string) (LimitSubject, error) {
+	result, has := limitSubjectRepr[repr]
+	if !has {
+		return LimitSubjectNone, ErrParseLimitSubjectUnrecognized{Subject: repr}
+	}
+	return result, nil
+}