Add admin order management with full status workflow.

internal/orderstatus/status.go

@@ -1,37 +1,58 @@
 package orderstatus
 
 type Info struct {
-	Label string
-	Class string
-	Step  int
+	Label    string
+	Class    string
+	Step     int
+	Terminal bool
 }
 
 var statuses = map[string]Info{
-	"new":        {Label: "Новый", Class: "status--new", Step: 1},
-	"confirmed":  {Label: "Подтверждён", Class: "status--confirmed", Step: 2},
+	"pending":    {Label: "В ожидании", Class: "status--pending", Step: 1},
+	"unpaid":     {Label: "Не оплачено", Class: "status--unpaid", Step: 1},
+	"paid":       {Label: "Оплачено", Class: "status--paid", Step: 2},
 	"processing": {Label: "В обработке", Class: "status--processing", Step: 3},
 	"shipped":    {Label: "Отправлен", Class: "status--shipped", Step: 4},
 	"delivered":  {Label: "Доставлен", Class: "status--delivered", Step: 5},
-	"cancelled":  {Label: "Отменён", Class: "status--cancelled", Step: 0},
+	"cancelled":  {Label: "Отменён", Class: "status--cancelled", Step: 0, Terminal: true},
+	"refunded":   {Label: "Возврат", Class: "status--refunded", Step: 0, Terminal: true},
+	// совместимость со старыми заказами
+	"new":        {Label: "В ожидании", Class: "status--pending", Step: 1},
+	"confirmed":  {Label: "Оплачено", Class: "status--paid", Step: 2},
 }
 
-var Timeline = []string{"new", "confirmed", "processing", "shipped", "delivered"}
+// Timeline — основной путь доставки (для таймлайна в кабинете)
+var Timeline = []string{"pending", "paid", "processing", "shipped", "delivered"}
+
+// AllCodes — все статусы для выбора в админке
+var AllCodes = []string{
+	"pending", "unpaid", "paid", "processing", "shipped", "delivered", "cancelled", "refunded",
+}
+
+func Normalize(code string) string {
+	if code == "new" {
+		return "pending"
+	}
+	if code == "confirmed" {
+		return "paid"
+	}
+	return code
+}
 
 func Get(code string) Info {
+	code = Normalize(code)
 	if s, ok := statuses[code]; ok {
 		return s
 	}
-	return Info{Label: code, Class: "status--new", Step: 1}
+	return Info{Label: code, Class: "status--pending", Step: 1}
 }
 
-func Label(code string) string {
-	return Get(code).Label
-}
+func Label(code string) string  { return Get(code).Label }
+func Class(code string) string  { return Get(code).Class }
+func Step(code string) int      { return Get(code).Step }
+func IsTerminal(code string) bool { return Get(code).Terminal }
 
-func Class(code string) string {
-	return Get(code).Class
-}
-
-func Step(code string) int {
-	return Get(code).Step
+func Valid(code string) bool {
+	_, ok := statuses[Normalize(code)]
+	return ok
 }