package constants

// What a client delivers, and what that implies operationally.
//
// ─── One vocabulary, not two ───────────────────────────────────────────────
//
// These eight values already existed as `validCategories` in
// controllers/doormilePricingController.go and as the comment on
// models.DoormilePricing.Category. Tenants now carry one too, so the set is
// promoted here rather than copied: a second list would drift, and a tenant
// whose category is not a pricing category cannot be priced.
var DeliveryCategories = map[string]bool{
	"General":     true,
	"Documents":   true,
	"Electronics": true,
	"Clothing":    true,
	"Fragile":     true,
	"Medical":     true,
	"Automotive":  true,
	"Food":        true,
}

// DeliveryCategoryList is the same set, ordered, for anything that renders a
// choice. General first because it is the safe default; Food last because it
// is the one that turns a capability off.
var DeliveryCategoryList = []string{
	"General", "Documents", "Electronics", "Clothing",
	"Fragile", "Medical", "Automotive", "Food",
}

// CategoryDefault is what a client with no category recorded is treated as.
// Every tenant onboarded before this field existed has an empty string, and
// they must keep behaving exactly as they did — which means reverse logistics
// stays available to them.
const CategoryDefault = "General"

// ReverseLogisticsAllowed reports whether a return journey makes sense for
// what this client ships.
//
// Food is the exception: a meal that comes back is waste, not inventory. There
// is nothing to restock, nothing to refund against a returned item, and a
// rider carrying it to a hub is carrying rubbish. Offering RTO there is not a
// harmless extra button — it invites an operator to start a return journey
// that can only end in disposal, and it puts a return charge on a client's
// invoice for a parcel nobody can resell.
//
// Everything else can come back: clothing is the canonical case (wrong size),
// and electronics, documents and automotive parts all have a real return path.
//
// An UNKNOWN or empty category allows returns. That is deliberate: this field
// is new, every existing tenant has no value for it, and a default of "off"
// would silently withdraw a working capability from every client already using
// it. New information must not change old behaviour.
func ReverseLogisticsAllowed(category string) bool {
	return category != "Food"
}