Agentic Shopping MCP

export type TransportMode = "air" | "road" | "rail" | "sea"; export type PackagingType = "plastic" | "paper" | "cardboard" | "mixed"; const EF_TRANSPORT_CO2E_G_PER_TKM: Record<TransportMode, number> = { air: 500, // g CO2e per tonne-km (rough defaults; tune for production) road: 120, rail: 30, sea: 10, }; const EF_PACKAGING_CO2E_G_PER_KG: Record<PackagingType, number> = { plastic: 3300, // g CO2e per kg of material paper: 800, cardboard: 700, mixed: 1500, }; export function estimateShippingCO2e( weightKg: number, distanceKm: number, transport: TransportMode ) { // tonne-km = (kg / 1000) * km const tonneKm = (weightKg / 1000) * distanceKm; const ef = EF_TRANSPORT_CO2E_G_PER_TKM[transport]; const g = tonneKm * ef; return { gramsCO2e: Math.max(0, g), tonneKm, ef_g_per_tkm: ef }; } export function estimatePackagingCO2e( packaging: PackagingType, packagingWeightKg = 0.2 // default 200g packaging ) { const ef = EF_PACKAGING_CO2E_G_PER_KG[packaging]; const g = packagingWeightKg * ef; return { gramsCO2e: Math.max(0, g), packagingWeightKg, ef_g_per_kg: ef }; } export function toKgCO2e(g: number) { return Number((g / 1000).toFixed(3)); }