package constants

import "strings"

// What a client delivers, and what that implies operationally.
//
// ─── One vocabulary, not two ───────────────────────────────────────────────
//
// Categories driven by pricing, onboarding, and logistics.
// Non-perishable goods like Steel, Clothing, Electronics, Automotive have return paths.
// Perishable goods like Food, Meat, and Fresh Produce have NO return option.
var DeliveryCategories = map[string]bool{
	"General":      true,
	"Documents":    true,
	"Electronics":  true,
	"Clothing":     true,
	"Fragile":      true,
	"Medical":      true,
	"Automotive":   true,
	"Steel":        true,
	"Food":         true,
	"Meat":         true,
	"FreshProduce": true,
}

// DeliveryCategoryList is the same set, ordered, for anything that renders a choice.
var DeliveryCategoryList = []string{
	"General", "Documents", "Electronics", "Clothing",
	"Fragile", "Medical", "Automotive", "Steel", "Food", "Meat", "FreshProduce",
}

// CategoryDefault is what a client with no category recorded is treated as.
const CategoryDefault = "General"

// NonReturnableCategories defines categories of goods that cannot be returned
// (Food items, Meat items, Fresh produce/perishables). Returning them causes
// spoilage and health risks. Non-perishables like Steel, Clothing, Electronics, etc. can be returned.
var NonReturnableCategories = map[string]bool{
	"food":          true,
	"meat":          true,
	"raw meat":      true,
	"fresh produce": true,
	"freshproduce":  true,
	"fresh":         true,
	"perishable":    true,
	"fish":          true,
	"seafood":       true,
	"poultry":       true,
	"dairy":         true,
	"vegetables":    true,
	"fruits":        true,
}

// IsPerishableCategory checks if a category or item description is perishable (food, meat, fresh produce).
func IsPerishableCategory(category string) bool {
	cat := strings.ToLower(strings.TrimSpace(category))
	if cat == "" {
		return false
	}
	if NonReturnableCategories[cat] {
		return true
	}
	if strings.Contains(cat, "food") || strings.Contains(cat, "meat") || strings.Contains(cat, "fresh") {
		return true
	}
	return false
}

// ReverseLogisticsAllowed reports whether a return journey makes sense for
// what this client or parcel ships.
//
// Food items, Meat items, and Fresh produce CANNOT be returned.
// Products like Steel, Electronics, Clothing, and Automotive CAN be returned.
func ReverseLogisticsAllowed(category string) bool {
	return !IsPerishableCategory(category)
}