feat(billing): USD offline bank-transfer payments

This commit is contained in:
Marshal
2026-08-08 13:37:05 +00:00
parent 83b9e32670
commit a42d32c27c
31 changed files with 923 additions and 11 deletions

View File

@@ -0,0 +1,884 @@
import { AllocationLoadType } from '@edr/types';
<<<<<<< Updated upstream:apps/edr-freight-api/src/modules/train-scheduling/wagon-plan.util.ts
import { Booking } from '../bookings/entities/booking.entity';
import { containersPerWagonForSize, wagonsPerUnitForSize } from '../rule-engine/container-type.util';
import { WagonType } from '../wagon-types/entities/wagon-type.entity';
import {
bookingCargoTons,
bulkItemsFitFor,
bulkItemWagonsRequired,
bulkTonsPerWagon,
bulkTonWagonsRequired,
consistViolations,
} from './train-capacity.util';
=======
import { Booking } from '../../bookings/entities/booking.entity';
import { WagonType } from '../../wagon-types/entities/wagon-type.entity';
>>>>>>> Stashed changes:apps/edr-freight-api/src/modules/train-scheduling/utils/wagon-plan.util.ts
export const MAX_TRAIN_WEIGHT_TONS = 3500;
export const MAX_TRAIN_LENGTH_METERS = 760;
export const MAX_TEU_SLOTS_PER_WAGON = 2;
export type TrainLimitConfig = {
maxWeightTons?: number;
maxLengthMeters?: number;
maxWagonsPerTrain?: number;
max20ftContainerWeightTons?: number;
max20ftPairWeightDiffTons?: number;
};
export type ContainerPlacementRules = {
max20ftContainerWeightTons?: number;
max20ftPairWeightDiffTons?: number;
};
export type WagonAllocationRecord = {
bookingId: string;
bookingReference: string;
allocatedWeightTons: number;
loadType: AllocationLoadType;
};
export type SlotLoadType = 'CONTAINER' | 'BULK';
export type WagonPlanSlot = {
sequenceNo: number;
wagonTypeId: string;
wagonTypeCode: string;
capacityTons: number;
lengthMeters: number;
/** Empty weight of this wagon — the locomotive pulls it whether or not it is loaded. */
tareWeightTons: number;
/** Cargo tons on this wagon. Gross weight = tareWeightTons + assignedWeightTons. */
assignedWeightTons: number;
allocations: WagonAllocationRecord[];
slotLoadType?: SlotLoadType;
/**
* Leg occupancy for sub-corridor bookings (dynamic consist): the slot boards
* at boardYardId and alights at alightYardId. Null = the schedule's own
* endpoint (whole-route slot, legacy behavior).
*/
boardYardId?: string | null;
alightYardId?: string | null;
};
export type ContainerUnitRow = {
bookingId: string;
bookingReference: string;
bookingContainerId: string;
unitIndex: number;
containerTypeId: string;
containerTypeCode: string;
label: string;
grossWeightTons: number;
sizeFt?: number;
containersPerWagon?: number;
teuSlots?: number;
containerNumber?: string | null;
};
export type ContainerPlacementInput = {
bookingContainerId: string;
unitIndex: number;
sequenceNo: number;
containerId?: string;
containerNumber?: string;
sealNumber?: string;
};
export function roundTons(value: number | string | null | undefined): number {
const numericValue = typeof value === 'number' ? value : Number(value ?? 0);
if (!Number.isFinite(numericValue)) return 0;
return Number(numericValue.toFixed(3));
}
/**
* Tare of a wagon type. Nullable only on rows predating the NOT NULL backfill;
* a missing tare must read as 0 rather than silently inventing dead weight.
*/
export function tareTonsOf(wagonType: Pick<WagonType, 'tareWeightTons'>): number {
return roundTons(wagonType.tareWeightTons ?? 0);
}
/** TEU slots on a wagon: 40ft = 2, 20ft = 1 (max 2 TEU / wagon). */
export function teuSlotsForSizeFt(sizeFt: number): number {
return sizeFt >= 40 ? 2 : 1;
}
type ContainerLine = {
quantity?: number | null;
wagonsRequired?: number | null;
containerType?: { sizeFt?: number | null } | null;
};
/**
* RAW (un-ceiled) wagon fraction one container line occupies: qty × size-derived
* fraction (40ft = 1, 20ft = 0.5). Two 20ft = 1.0, three 20ft = 1.5. Kept
* fractional so the BOOKING total is ceiled once — ceiling per line over-counts a
* booking that splits its 20ft units across several lines (3×20 + 3×20 = 3
* wagons, not 4).
*/
function lineWagonsRaw(line: ContainerLine): number {
const qty = Number(line.quantity ?? 0);
if (qty <= 0) return 0;
const sizeFt = Number(line.containerType?.sizeFt);
if (Number.isFinite(sizeFt) && sizeFt > 0) {
return qty * wagonsPerUnitForSize(sizeFt);
}
// No size on the type: fall back to the line's stored fraction, else treat
// the whole line as one wagon.
const stored = Number(line.wagonsRequired);
return Number.isFinite(stored) && stored > 0 ? stored : 1;
}
/**
* Whole wagons a set of container lines needs: ceil the summed RAW fraction so a
* half-full 20ft wagon rounds up ONCE at the booking level. Empty set → 0.
*/
export function containerWagonsForLines(lines: ContainerLine[]): number {
const raw = lines.reduce((sum, line) => sum + lineWagonsRaw(line), 0);
return raw > 0 ? Math.ceil(raw) : 0;
}
/**
* Build slot-based wagon plan for CONTAINER bookings using booking_container.wagons_required.
*/
export function buildContainerWagonPlan(
bookings: Booking[],
wagonType: WagonType,
): WagonPlanSlot[] {
// Whole wagons PER BOOKING (ceil each booking's total TEU once — a 20ft unit
// can share a wagon with another 20ft of the SAME booking, never across
// bookings), then sum. Ceiling per line instead would over-count a booking
// that splits its 20ft units across several lines.
const totalSlots = bookings.reduce((sum, booking) => {
const bookingSlots = containerWagonsForLines(booking.bookingContainers ?? []);
return sum + Math.max(bookingSlots, 1);
}, 0);
const slots = Math.max(1, totalSlots);
const basePlan: WagonPlanSlot[] = Array.from({ length: slots }, (_, index) => ({
sequenceNo: index + 1,
wagonTypeId: wagonType.id,
wagonTypeCode: wagonType.code,
capacityTons: Number(wagonType.capacityTons),
lengthMeters: Number(wagonType.lengthMeters),
tareWeightTons: tareTonsOf(wagonType),
assignedWeightTons: 0,
allocations: [],
}));
return allocateContainersToSlots(bookings, basePlan).map((slot) => ({
...slot,
slotLoadType: 'CONTAINER' as SlotLoadType,
}));
}
/**
* Build weight-based wagon plan for BULK bookings.
*/
export function buildBulkWagonPlan(
bookings: Booking[],
wagonType: WagonType,
): WagonPlanSlot[] {
const capacity = Number(wagonType.capacityTons);
// Break-bulk (PER_ITEM) bookings size by indivisible items per booking —
// their tonnage must NOT pool with PER_TON cargo (an item can't split
// across wagons the way loose tonnage can).
const itemSlotsByBooking = bookings.map((b) =>
// The plan fixed THIS wagon type, so its configured items-fit binds — not
// the best fit across the cargo's allowed types.
bulkItemWagonsRequired(b, capacity, bulkItemsFitFor(b.cargoType, wagonType.id)),
);
const itemSlots = itemSlotsByBooking.reduce((sum, n) => sum + n, 0);
// PER_TON cargo with a per-wagon tonnage cap (sugar 50T on a 70T wagon) can't
// pool with uncapped tonnage either: its wagons stop at the cap, so 200T needs
// 4 wagons and pooling it at 70T would plan 3. Capped bookings are sized on
// their own cap; only genuinely uncapped tonnage pools at rated capacity.
const cappedTonSlotsByBooking = bookings.map((b, i) =>
itemSlotsByBooking[i] > 0 || bulkTonsPerWagon(b.cargoType, wagonType.id, capacity) >= capacity
? 0
: bulkTonWagonsRequired(b, b.cargoType, wagonType.id, capacity),
);
const cappedTonSlots = cappedTonSlotsByBooking.reduce((sum, n) => sum + n, 0);
const totalWeight = roundTons(
bookings.reduce(
(sum, b, i) =>
itemSlotsByBooking[i] > 0 || cappedTonSlotsByBooking[i] > 0
? sum
: sum + Number(b.cargoTotalWeightVgm ?? 0),
0,
),
);
const tonSlots = totalWeight > 0 ? Math.ceil(totalWeight / capacity) : 0;
const slots = Math.max(1, tonSlots + itemSlots + cappedTonSlots);
const basePlan: WagonPlanSlot[] = Array.from({ length: slots }, (_, index) => ({
sequenceNo: index + 1,
wagonTypeId: wagonType.id,
wagonTypeCode: wagonType.code,
capacityTons: capacity,
lengthMeters: Number(wagonType.lengthMeters),
tareWeightTons: tareTonsOf(wagonType),
assignedWeightTons: 0,
allocations: [],
}));
return allocateBookingsToSlots(bookings, basePlan, AllocationLoadType.Bulk).map((slot) => ({
...slot,
slotLoadType: 'BULK' as SlotLoadType,
}));
}
/**
* Build a mixed consist: container slots first, then bulk slots, with unified sequence numbers.
*/
export function buildMixedWagonPlan(
containerBookings: Booking[],
bulkBookings: Booking[],
containerWagonType: WagonType,
bulkWagonType: WagonType,
): WagonPlanSlot[] {
const containerPlan = containerBookings.length
? buildContainerWagonPlan(containerBookings, containerWagonType)
: [];
const bulkPlan = bulkBookings.length
? buildBulkWagonPlan(bulkBookings, bulkWagonType)
: [];
const tagged: WagonPlanSlot[] = [
...containerPlan.map((slot) => ({ ...slot, slotLoadType: 'CONTAINER' as SlotLoadType })),
...bulkPlan.map((slot) => ({ ...slot, slotLoadType: 'BULK' as SlotLoadType })),
];
if (!tagged.length) {
return [
{
sequenceNo: 1,
wagonTypeId: containerWagonType.id,
wagonTypeCode: containerWagonType.code,
capacityTons: Number(containerWagonType.capacityTons),
lengthMeters: Number(containerWagonType.lengthMeters),
tareWeightTons: tareTonsOf(containerWagonType),
assignedWeightTons: 0,
allocations: [],
slotLoadType: 'CONTAINER',
},
];
}
return tagged.map((slot, index) => ({
...slot,
sequenceNo: index + 1,
}));
}
export function expandBookingContainerUnits(bookings: Booking[]): ContainerUnitRow[] {
const rows: ContainerUnitRow[] = [];
for (const booking of bookings.filter((b) => b.freightType === 'CONTAINER')) {
for (const line of booking.bookingContainers ?? []) {
const qty = Number(line.quantity ?? 0);
const code = line.containerType?.code ?? line.containerType?.label ?? 'Container';
const sizeFt = Number(line.containerType?.sizeFt ?? (code.includes('40') ? 40 : 20));
const perWagon = containersPerWagonForSize(sizeFt);
const teuSlots = teuSlotsForSizeFt(sizeFt);
// The REAL per-container numbers/weights entered at booking time. Unit i of
// the line maps to units[i] (sortOrder order); the line-level number is only
// a legacy fallback — never invent numbers here.
const units = [...(line.units ?? [])].sort(
(a, b) => Number(a.sortOrder ?? 0) - Number(b.sortOrder ?? 0),
);
for (let i = 0; i < qty; i += 1) {
const unit = units[i];
rows.push({
bookingId: booking.id,
bookingReference: booking.reference,
bookingContainerId: line.id,
unitIndex: i,
containerTypeId: line.containerTypeId ?? '',
containerTypeCode: code,
label: `${booking.reference} · ${i + 1}/${qty} · ${code}`,
grossWeightTons: Number(unit?.vgmTons ?? line.vgmPerUnitTons),
sizeFt,
containersPerWagon: perWagon,
teuSlots,
containerNumber:
unit?.containerNumber?.trim() || line.containerNumber || null,
});
}
}
}
return rows;
}
export function getContainerSlotSequenceNos(wagonPlan: WagonPlanSlot[]): number[] {
return wagonPlan
.filter((slot) => slot.slotLoadType === 'CONTAINER' || slot.allocations.some(
(a) => a.loadType === AllocationLoadType.Container,
))
.map((slot) => slot.sequenceNo);
}
function allocateBookingsToSlots(
bookings: Booking[],
basePlan: WagonPlanSlot[],
loadType: AllocationLoadType,
): WagonPlanSlot[] {
const remaining = bookings.map((booking) => ({
bookingId: booking.id,
bookingReference: booking.reference,
// bookingCargoTons, not the raw VGM column: for break-bulk (PER_ITEM)
// bookings that column is an item COUNT, not tons.
remainingWeightTons: roundTons(bookingCargoTons(booking)),
cargoType: booking.cargoType,
}));
let bookingIndex = 0;
return basePlan.map((slot) => {
let wagonRemaining = roundTons(slot.capacityTons);
const allocations: WagonAllocationRecord[] = [];
let assignedWeightTons = 0;
while (wagonRemaining > 0 && bookingIndex < remaining.length) {
const booking = remaining[bookingIndex];
// A PER_TON loading cap (sugar 50T on a 70T wagon) binds the FILL as well
// as the wagon count — the plan reserved a wagon per capped chunk, so
// pouring rated capacity into it would leave the last wagon empty.
const takeCap = Math.min(
wagonRemaining,
bulkTonsPerWagon(booking.cargoType, slot.wagonTypeId, slot.capacityTons),
);
const allocatedWeightTons = roundTons(
Math.min(takeCap, booking.remainingWeightTons),
);
if (allocatedWeightTons <= 0) {
bookingIndex += 1;
continue;
}
allocations.push({
bookingId: booking.bookingId,
bookingReference: booking.bookingReference,
allocatedWeightTons,
loadType,
});
booking.remainingWeightTons = roundTons(
booking.remainingWeightTons - allocatedWeightTons,
);
wagonRemaining = roundTons(wagonRemaining - allocatedWeightTons);
assignedWeightTons = roundTons(assignedWeightTons + allocatedWeightTons);
if (booking.remainingWeightTons <= 0) {
bookingIndex += 1;
} else if (allocatedWeightTons >= takeCap) {
// The cap stopped this wagon short of its rating and the booking has
// more to load. The leftover room is NOT free: `buildBulkWagonPlan`
// already reserved a wagon for the rest, so backfilling another booking
// here would double-book the consist. Close the wagon.
break;
}
}
return { ...slot, assignedWeightTons, allocations };
});
}
/**
* Allocate container bookings across wagon slots by TEU capacity. A wagon holds at most
* 2 TEU, so it carries either one 40ft container (2 TEU) or two 20ft containers (1 TEU
* each) — a 40ft is NEVER mixed onto the same wagon as a 20ft. Every physical container
* maps to a real wagon allocation, and this mirrors the frontend auto-fill packing
* exactly so a placement's sequenceNo always lands on a slot that holds an allocation
* for its booking.
*
* Weight-based packing (allocateBookingsToSlots) is wrong for containers: it collapses
* several light containers into the first wagons by tonnage and leaves later container
* units without an allocation slot, which silently drops their container items on assign.
*/
function allocateContainersToSlots(
bookings: Booking[],
basePlan: WagonPlanSlot[],
): WagonPlanSlot[] {
const slots = basePlan.map((slot) => ({
...slot,
assignedWeightTons: 0,
allocations: [] as WagonAllocationRecord[],
}));
if (!slots.length) return slots;
const units = expandBookingContainerUnits(bookings);
let currentSlotIndex = 0;
let teuInCurrentSlot = 0;
for (const unit of units) {
const teu = unit.teuSlots ?? teuSlotsForSizeFt(unit.sizeFt ?? 20);
// Move to the next wagon once this one can't fit the container's TEU. This keeps a
// 40ft (2 TEU) alone on its wagon and never pairs it with a 20ft.
if (teuInCurrentSlot > 0 && teuInCurrentSlot + teu > MAX_TEU_SLOTS_PER_WAGON) {
currentSlotIndex += 1;
teuInCurrentSlot = 0;
}
const slot = slots[Math.min(currentSlotIndex, slots.length - 1)]!;
let allocation = slot.allocations.find((a) => a.bookingId === unit.bookingId);
if (!allocation) {
allocation = {
bookingId: unit.bookingId,
bookingReference: unit.bookingReference,
allocatedWeightTons: 0,
loadType: AllocationLoadType.Container,
};
slot.allocations.push(allocation);
}
allocation.allocatedWeightTons = roundTons(
allocation.allocatedWeightTons + unit.grossWeightTons,
);
slot.assignedWeightTons = roundTons(slot.assignedWeightTons + unit.grossWeightTons);
teuInCurrentSlot += teu;
}
return slots;
}
export function expandContainerItems(
booking: Booking,
allocationId: string,
): Array<{
wagonBookingAllocationId: string;
bookingContainerId: string;
containerTypeId: string;
grossWeightTons: number;
positionOnWagon: number | null;
}> {
const items: Array<{
wagonBookingAllocationId: string;
bookingContainerId: string;
containerTypeId: string;
grossWeightTons: number;
positionOnWagon: number | null;
}> = [];
for (const line of booking.bookingContainers ?? []) {
const qty = Number(line.quantity ?? 0);
for (let i = 0; i < qty; i += 1) {
items.push({
wagonBookingAllocationId: allocationId,
bookingContainerId: line.id,
containerTypeId: line.containerTypeId ?? '',
grossWeightTons: Number(line.vgmPerUnitTons),
positionOnWagon: qty > 1 ? i + 1 : null,
});
}
}
return items;
}
/**
* Wagons a booking actually occupies. Prefer counting the built wagon plan's
* slots that carry one of the booking's allocations — for BULK that is its
* tonnage spread over real wagons (a 700T booking on 70T wagons rides 10
* wagons, and downstream gross-weight math charges 10 tares, not 1). Without
* a plan there is no capacity to divide by, so fall back to the pre-plan
* estimates: 1 for bulk, the lines' stored counts for containers.
*/
export function sumWagonsRequired(booking: Booking, wagonPlan?: WagonPlanSlot[]): number {
const occupiedSlots = (wagonPlan ?? []).filter((slot) =>
slot.allocations.some((allocation) => allocation.bookingId === booking.id),
).length;
if (occupiedSlots > 0) {
return occupiedSlots;
}
if (booking.freightType === 'BULK') {
return 1;
}
return (booking.bookingContainers ?? []).reduce(
(sum, line) => sum + Number(line.wagonsRequired ?? 0),
0,
);
}
export function validateBulkWagonSlotWeights(wagonPlan: WagonPlanSlot[]): string[] {
const violations: string[] = [];
for (const slot of wagonPlan.filter((s) => s.slotLoadType === 'BULK')) {
if (slot.assignedWeightTons > slot.capacityTons) {
violations.push(
`Bulk wagon #${slot.sequenceNo} load ${slot.assignedWeightTons}T exceeds capacity ${slot.capacityTons}T`,
);
}
}
return violations;
}
/**
* Check a consist against its train's three limits. Weight is GROSS — every slot
* contributes its own tare plus the cargo assigned to it — because the locomotive
* pull limit governs what it drags, not what was sold. Length and tare are summed
* per slot, so a mixed consist is measured as it actually stands rather than
* through one representative wagon type.
*
* `wagonType` only supplies the fallback wagon count when `limits.maxWagonsPerTrain`
* is absent; slot dimensions always win over it.
*/
export function validateTrainLimits(
wagonPlan: WagonPlanSlot[],
wagonType: Pick<WagonType, 'lengthMeters'>,
limits?: TrainLimitConfig,
): string[] {
const maxWeightTons = limits?.maxWeightTons ?? MAX_TRAIN_WEIGHT_TONS;
const maxLengthMeters = limits?.maxLengthMeters ?? MAX_TRAIN_LENGTH_METERS;
const wagonLength = Number(wagonType.lengthMeters) || 14;
const maxWagonSlots =
limits?.maxWagonsPerTrain ?? Math.floor(maxLengthMeters / wagonLength);
const violations = consistViolations(
wagonPlan.map((slot) => ({
lengthMeters: Number(slot.lengthMeters),
tareWeightTons: Number(slot.tareWeightTons ?? 0),
cargoTons: Number(slot.assignedWeightTons),
})),
{ maxWeightTons, maxLengthMeters, maxWagonSlots },
);
violations.push(...validateBulkWagonSlotWeights(wagonPlan));
return violations;
}
/**
* Mixed consist: the wagon-count fallback uses the shortest type present, since
* that is the most wagons that could ever fit. Weight and length still come from
* the slots themselves.
*/
export function validateMixedTrainLimits(
wagonPlan: WagonPlanSlot[],
wagonTypes: Array<Pick<WagonType, 'lengthMeters'>>,
limits?: TrainLimitConfig,
): string[] {
const maxLengthMeters = limits?.maxLengthMeters ?? MAX_TRAIN_LENGTH_METERS;
const minWagonLength = Math.min(
...wagonTypes.map((wt) => Number(wt.lengthMeters) || 14),
14,
);
const maxWagonsPerTrain =
limits?.maxWagonsPerTrain ?? Math.floor(maxLengthMeters / minWagonLength);
return validateTrainLimits(
wagonPlan,
{ lengthMeters: minWagonLength },
{ ...limits, maxWagonsPerTrain },
);
}
/**
* Leg-aware limit check: with a real stop list, a slot only counts on the
* edges it actually rides (boardYardId→alightYardId; null = the schedule's
* own endpoint). Each edge is validated as its own consist, so an intercity
* wagon on Gelan→Adama never counts against a train that is full only on
* Adama→Doraleh. Two stops (or fewer) degrade to the whole-train check.
*/
export function validateMixedTrainLimitsPerEdge(
wagonPlan: WagonPlanSlot[],
wagonTypes: Array<Pick<WagonType, 'lengthMeters'>>,
limits: TrainLimitConfig | undefined,
stops: string[],
/** Display names parallel to `stops` — violations then name the leg they hit. */
stopLabels?: string[],
): string[] {
if (stops.length <= 2) return validateMixedTrainLimits(wagonPlan, wagonTypes, limits);
const spans = slotSpans(wagonPlan, stops);
const label = (i: number) => stopLabels?.[i] ?? stops[i];
const violations = new Set<string>();
for (let edge = 0; edge < stops.length - 1; edge += 1) {
const active = wagonPlan.filter(
(_, i) => spans[i].from <= edge && edge < spans[i].to,
);
if (!active.length) continue;
for (const violation of validateMixedTrainLimits(active, wagonTypes, limits)) {
violations.add(`Leg ${label(edge)}${label(edge + 1)}: ${violation}`);
}
}
return [...violations];
}
/**
* The slot fields per-edge usage math actually reads — lets callers feed
* persisted TrainSetWagon rows (or any structural subset), not only plan slots.
*/
export type EdgeUsageSlot = Pick<
WagonPlanSlot,
'lengthMeters' | 'tareWeightTons' | 'assignedWeightTons'
> & {
boardYardId?: string | null;
alightYardId?: string | null;
allocations?: unknown[];
};
/** Per-slot stop-index spans; a yard missing from the stop list keeps the slot on the whole route. */
function slotSpans(
wagonPlan: EdgeUsageSlot[],
stops: string[],
): Array<{ from: number; to: number }> {
const lastIdx = stops.length - 1;
return wagonPlan.map((slot) => {
const from = slot.boardYardId ? stops.indexOf(slot.boardYardId) : 0;
const to = slot.alightYardId ? stops.indexOf(slot.alightYardId) : lastIdx;
return { from: from >= 0 ? from : 0, to: to > 0 ? to : lastIdx };
});
}
/**
* The corridor's binding edge: gross tons (tare + assigned cargo) and length
* summed over only the slots riding each edge, maxed across edges. This is the
* figure a locomotive pull/length limit must be compared against — a train is
* never heavier than its heaviest single leg, so summing disjoint legs
* (intercity Gelan→Adama + export Adama→Doraleh) over-reports the train.
* Two stops or fewer degrade to the whole-train totals.
*/
export function maxEdgeConsistUsage(
wagonPlan: EdgeUsageSlot[],
stops: string[],
): { grossWeightTons: number; lengthMeters: number; loadedWagonCount: number } {
return perEdgeConsistUsage(wagonPlan, stops).reduce(
(max, e) => ({
grossWeightTons: Math.max(max.grossWeightTons, e.grossWeightTons),
lengthMeters: Math.max(max.lengthMeters, e.lengthMeters),
loadedWagonCount: Math.max(max.loadedWagonCount, e.loadedWagonCount),
}),
{ grossWeightTons: 0, lengthMeters: 0, loadedWagonCount: 0 },
);
}
/** Usage of one corridor edge (between stops[edge] and stops[edge + 1]). */
export type EdgeConsistUsage = {
edge: number;
grossWeightTons: number;
lengthMeters: number;
loadedWagonCount: number;
wagonCount: number;
};
/**
* Per-edge breakdown behind {@link maxEdgeConsistUsage}: every edge's own
* consist totals, so callers can name WHICH leg breaks a limit instead of
* only reporting the heaviest figure. Two stops or fewer collapse to a
* single whole-route edge.
*/
export function perEdgeConsistUsage(
wagonPlan: EdgeUsageSlot[],
stops: string[],
): EdgeConsistUsage[] {
const totals = (edge: number, slots: EdgeUsageSlot[]): EdgeConsistUsage => ({
edge,
grossWeightTons: slots.reduce(
(sum, w) =>
sum + Number(w.tareWeightTons ?? 0) + Number(w.assignedWeightTons ?? 0),
0,
),
lengthMeters: slots.reduce((sum, w) => sum + Number(w.lengthMeters ?? 0), 0),
loadedWagonCount: slots.filter((w) => (w.allocations?.length ?? 1) > 0).length,
wagonCount: slots.length,
});
if (stops.length <= 2) return [totals(0, wagonPlan)];
const spans = slotSpans(wagonPlan, stops);
return Array.from({ length: stops.length - 1 }, (_, edge) =>
totals(
edge,
wagonPlan.filter((_, i) => spans[i].from <= edge && edge < spans[i].to),
),
);
}
export function validate20ftContainerRules(
units: ContainerUnitRow[],
placements: ContainerPlacementInput[],
rules?: ContainerPlacementRules,
): string[] {
const violations: string[] = [];
const maxEach = rules?.max20ftContainerWeightTons;
const maxDiff = rules?.max20ftPairWeightDiffTons;
if (maxEach == null && maxDiff == null) return violations;
const placementByUnit = new Map(
placements.map((p) => [`${p.bookingContainerId}:${p.unitIndex}`, p]),
);
const weightsBySlot = new Map<number, number[]>();
for (const unit of units) {
const sizeFt = unit.sizeFt ?? (unit.containerTypeCode.includes('40') ? 40 : 20);
if (sizeFt >= 40) continue;
if (maxEach != null && unit.grossWeightTons > maxEach) {
violations.push(
`${unit.label} weight ${unit.grossWeightTons}T exceeds max ${maxEach}T for 20ft containers`,
);
}
const placement = placementByUnit.get(`${unit.bookingContainerId}:${unit.unitIndex}`);
if (!placement?.sequenceNo) continue;
const list = weightsBySlot.get(placement.sequenceNo) ?? [];
list.push(unit.grossWeightTons);
weightsBySlot.set(placement.sequenceNo, list);
}
if (maxDiff != null) {
for (const [sequenceNo, weights] of weightsBySlot.entries()) {
if (weights.length < 2) continue;
const diff = Math.abs(weights[0]! - weights[1]!);
if (diff > maxDiff) {
violations.push(
`Wagon #${sequenceNo} 20ft pair weight difference ${roundTons(diff)}T exceeds max ${maxDiff}T`,
);
}
}
}
return violations;
}
export function validateContainerPlacements(
containerBookings: Booking[],
wagonPlan: WagonPlanSlot[],
placements: ContainerPlacementInput[],
rules?: ContainerPlacementRules,
/**
* Leg-aware occupancy (cross-leg TEU sharing): booking id → stop-index leg.
* With legs, a wagon's TEU/weight caps hold PER CORRIDOR EDGE — an intercity
* 20ft and an export 20ft coexist on one wagon when their edges allow it.
* Omitted → one edge, byte-identical to the whole-route check.
*/
legs?: Map<string, { from: number; to: number }>,
edgeCount?: number,
): string[] {
const violations: string[] = [];
const units = expandBookingContainerUnits(containerBookings);
if (!units.length) return violations;
const containerSlots = new Set(getContainerSlotSequenceNos(wagonPlan));
const unitKeys = new Set(units.map((u) => `${u.bookingContainerId}:${u.unitIndex}`));
const placementKeys = new Set<string>();
const containerNumbers = new Set<string>();
if (!placements.length) {
violations.push('Container placements are required for container bookings');
return violations;
}
for (const placement of placements) {
const unitKey = `${placement.bookingContainerId}:${placement.unitIndex}`;
if (!unitKeys.has(unitKey)) {
violations.push(
`Unknown container unit ${placement.bookingContainerId}#${placement.unitIndex}`,
);
continue;
}
if (placementKeys.has(unitKey)) {
violations.push(`Duplicate placement for container unit ${unitKey}`);
}
placementKeys.add(unitKey);
if (!containerSlots.has(placement.sequenceNo)) {
violations.push(`Slot #${placement.sequenceNo} is not a container wagon slot`);
}
const hasInventory = Boolean(placement.containerId);
const hasManual = Boolean(placement.containerNumber?.trim());
if (!hasInventory && !hasManual) {
violations.push(
`Container unit ${unitKey} requires an existing container or a new container number`,
);
}
if (hasManual) {
const normalized = placement.containerNumber!.trim().toUpperCase();
if (containerNumbers.has(normalized)) {
violations.push(`Duplicate container number ${normalized}`);
}
containerNumbers.add(normalized);
}
}
for (const unit of units) {
const unitKey = `${unit.bookingContainerId}:${unit.unitIndex}`;
if (!placementKeys.has(unitKey)) {
violations.push(`Missing placement for ${unit.label}`);
}
}
// TEU and weight are tracked PER EDGE of a unit's leg; without legs there is
// a single edge and this is exactly the old whole-route accounting.
const edges = Math.max(1, edgeCount ?? 1);
const legOf = (bookingId: string): { from: number; to: number } => {
const leg = legs?.get(bookingId);
if (!leg || leg.from < 0 || leg.to > edges || leg.from >= leg.to) {
return { from: 0, to: edges };
}
return leg;
};
const slotTeuUsed = new Map<number, number[]>();
const slotWeightUsed = new Map<number, number[]>();
const slotBySeq = new Map(wagonPlan.map((s) => [s.sequenceNo, s]));
for (const placement of placements) {
const unit = units.find(
(u) =>
u.bookingContainerId === placement.bookingContainerId &&
u.unitIndex === placement.unitIndex,
);
if (!unit) continue;
const teu = unit.teuSlots ?? teuSlotsForSizeFt(unit.sizeFt ?? 20);
const leg = legOf(unit.bookingId);
const teuRow =
slotTeuUsed.get(placement.sequenceNo) ?? new Array<number>(edges).fill(0);
let teuFits = true;
for (let e = leg.from; e < leg.to; e += 1) {
if ((teuRow[e] ?? 0) + teu > MAX_TEU_SLOTS_PER_WAGON) {
teuFits = false;
break;
}
}
if (!teuFits) {
violations.push(
`Wagon #${placement.sequenceNo} cannot fit another ${unit.containerTypeCode} (max 1×40ft or 2×20ft per wagon)`,
);
} else {
for (let e = leg.from; e < leg.to; e += 1) teuRow[e] = (teuRow[e] ?? 0) + teu;
slotTeuUsed.set(placement.sequenceNo, teuRow);
}
const slot = slotBySeq.get(placement.sequenceNo);
if (slot) {
const weightRow =
slotWeightUsed.get(placement.sequenceNo) ?? new Array<number>(edges).fill(0);
let heaviestEdge = 0;
for (let e = leg.from; e < leg.to; e += 1) {
weightRow[e] = roundTons((weightRow[e] ?? 0) + unit.grossWeightTons);
heaviestEdge = Math.max(heaviestEdge, weightRow[e]);
}
slotWeightUsed.set(placement.sequenceNo, weightRow);
if (heaviestEdge > slot.capacityTons) {
violations.push(
`Wagon #${placement.sequenceNo} total container weight ${heaviestEdge}T exceeds capacity ${slot.capacityTons}T`,
);
}
}
}
violations.push(...validate20ftContainerRules(units, placements, rules));
return violations;
}