import {
  agencyCommission,
  cancelPolicy,
  canRescheduleSelf,
  checkTransition,
  discountFor,
  findActionTransition,
  findEvent,
  getFlow,
  isAgencyAttributionActive,
  isProviderFree,
  isTerminal,
  ManualPaymentProvider,
  quote,
  validateParams,
  yerevanDateKey,
  yerevanMonthKey,
  type ActorType,
  type GuardContext,
  type OrderStatus,
} from '@barev/core';
import type { Db, Prisma, Tx } from '@barev/db';
import { loadAvailability, slotsForDay } from './availability.ts';
import { getServiceByCode, type ParsedService } from './catalog.ts';
import { getMembership } from './clients.ts';
import { DomainError, type Ctx, type DomainEvent } from './context.ts';
import { getSettings } from './settings.ts';
import { recordPartnerEarning } from './servicePartners.ts';
import { findPromo } from './promo.ts';
import { accrueForOrder, onOrderCancelled, redeemPoints, takePointsEvents } from './points.ts';

export async function quoteForClient(ctx: Ctx, clientId: string, serviceCode: string, rawParams: Record<string, unknown>, promoCode?: string | null) {
  const service = await getServiceByCode(ctx.db, serviceCode, { activeOnly: true });
  const params = validateParams(service.paramsSchema, rawParams);
  if (!params.ok) throw new DomainError('INVALID_PARAMS', { errors: params.errors });
  const membership = await getMembership(ctx.db, clientId, ctx.now());
  const memberPct = discountFor(membership.level, service.categoryDiscountPct, service.categoryEliteDiscountPct);
  // промокод не складывается со скидкой подписки — берём большую
  const promo = promoCode?.trim() ? await findPromo(ctx.db, { code: promoCode, clientId, category: service.category, now: ctx.now() }) : null;
  const promoWins = !!promo && promo.discountPct! > memberPct;
  const q = quote(service.pricing, params.values, promoWins ? promo!.discountPct! : memberPct);
  return { service, params: params.values, quote: q, membership, promo: promoWins ? promo : null };
}

export async function availableSlots(ctx: Ctx, input: { serviceCode: string; params: Record<string, unknown>; dateKey: string; excludeOrderId?: string }) {
  const service = await getServiceByCode(ctx.db, input.serviceCode, { activeOnly: true });
  const params = validateParams(service.paramsSchema, input.params);
  if (!params.ok) throw new DomainError('INVALID_PARAMS', { errors: params.errors });
  const { durationMinutes } = quote(service.pricing, params.values);
  return slotsForDay(ctx.db, {
    role: service.providerRole,
    config: service.slotConfig,
    durationMinutes,
    dateKey: input.dateKey,
    now: ctx.now(),
    excludeOrderId: input.excludeOrderId,
  });
}

async function assertSlotFree(tx: Tx, service: ParsedService, scheduledAt: Date, durationMinutes: number, now: Date, excludeOrderId?: string) {
  const slots = await slotsForDay(tx, {
    role: service.providerRole,
    config: service.slotConfig,
    durationMinutes,
    dateKey: yerevanDateKey(scheduledAt),
    now,
    excludeOrderId,
  });
  if (!slots.some((s) => s.start.getTime() === scheduledAt.getTime())) throw new DomainError('SLOT_UNAVAILABLE');
}

export interface CreateOrderInput {
  clientId: string;
  serviceCode: string;
  params: Record<string, unknown>;
  scheduledAt: Date;
  addressText?: string;
  districtId?: string;
  lat?: number;
  lng?: number;
  note?: string;
  paymentMethodId?: string;
  repeatOfId?: string;
  /** заказ оформила команда за клиента (новая админка) */
  createdBy?: { type: 'ADMIN'; id: string };
  /** оператор ставит время, даже если по графику все заняты (договорился с исполнителем сам) */
  allowBusySlot?: boolean;
  /** промокод на скидку (применяется, если выгоднее скидки подписки) */
  promoCode?: string | null;
  /** оплатить часть бариками: сумма (не больше N% и баланса); с промокодом нельзя */
  usePoints?: number;
}

/** ORD-5: подтверждение заказа → «Новый», чек-лист из шаблона, запись в историю */
export async function createOrder(ctx: Ctx, input: CreateOrderInput) {
  const client = await ctx.db.client.findUniqueOrThrow({ where: { id: input.clientId }, include: { user: true } });
  if (!client.consentAt) throw new DomainError('CONSENT_REQUIRED');
  const { service, params, quote: q, promo } = await quoteForClient(ctx, input.clientId, input.serviceCode, input.params, input.promoCode);
  if (!service.isOnline && (!input.addressText?.trim() || !input.districtId)) throw new DomainError('ADDRESS_REQUIRED');
  const flow = getFlow(service.flow);
  if (input.usePoints && promo) throw new DomainError('POINTS_WITH_PROMO');
  const pointEvents: DomainEvent[] = [];

  const order = await ctx.db.$transaction(
    async (tx) => {
      // сериализуем создание заказов одной роли, чтобы не продать слот дважды
      await tx.$executeRaw`SELECT pg_advisory_xact_lock(hashtext(${'slots:' + service.providerRole}))`;
      if (!input.allowBusySlot) await assertSlotFree(tx, service, input.scheduledAt, q.durationMinutes, ctx.now());
      else if (input.scheduledAt <= ctx.now()) throw new DomainError('SLOT_UNAVAILABLE');
      const checklist = await tx.checklistItem.findMany({ where: { serviceId: service.id }, orderBy: { sortOrder: 'asc' } });
      const created = await tx.order.create({
        data: {
          clientId: input.clientId,
          serviceId: service.id,
          params,
          scheduledAt: input.scheduledAt,
          durationMinutes: q.durationMinutes,
          isOnline: service.isOnline,
          addressText: input.addressText?.trim(),
          districtId: input.districtId,
          lat: input.lat,
          lng: input.lng,
          note: input.note?.trim() || undefined,
          locale: client.user.locale,
          basePrice: q.basePrice,
          priceBreakdown: q.breakdown as unknown as Prisma.InputJsonValue,
          discountPct: q.discountPct,
          discountAmount: q.discountAmount,
          totalPrice: q.totalPrice,
          status: flow.initial,
          paymentMethodId: input.paymentMethodId,
          repeatOfId: input.repeatOfId,
          checklist: {
            create: checklist.map((c) => ({ code: c.code, requiresPhoto: c.requiresPhoto, sortOrder: c.sortOrder })),
          },
          history: { create: input.createdBy ? { toStatus: flow.initial, actorType: 'ADMIN', actorId: input.createdBy.id, event: 'createdByStaff' } : { toStatus: flow.initial, actorType: 'CLIENT', actorId: input.clientId } },
        },
      });
      if (promo) {
        await tx.promoCodeUse.create({ data: { promoId: promo.id, clientId: input.clientId, orderId: created.id } });
        await tx.promoCode.update({ where: { id: promo.id }, data: { usedCount: { increment: 1 } } });
      }
      if (input.usePoints && input.usePoints > 0) {
        await redeemPoints(ctx, { clientId: input.clientId, amount: input.usePoints, orderId: created.id, orderRef: `#${created.number}`, orderAmount: q.totalPrice, channel: input.createdBy ? 'WEB' : 'CLIENT' }, { adminId: input.createdBy?.id ?? null, owner: true }, tx);
        pointEvents.push(...takePointsEvents(tx));
        return tx.order.update({ where: { id: created.id }, data: { pointsUsed: input.usePoints } });
      }
      return created;
    },
    { isolationLevel: 'ReadCommitted' },
  );
  await ctx.notify.emit({ type: 'order.created', orderId: order.id });
  for (const e of pointEvents) await ctx.notify.emit(e);
  return order;
}

/** Контекст guard'ов для перехода — из чек-листа, сметы, пакета уроков */
export async function guardContext(db: Db | Tx, orderId: string): Promise<GuardContext> {
  const [items, estimate, lessons] = await Promise.all([
    db.orderChecklistItem.findMany({ where: { orderId } }),
    db.estimate.findFirst({ where: { orderId }, orderBy: { createdAt: 'desc' } }),
    db.lessonPackage.findUnique({ where: { orderId } }),
  ]);
  return {
    checklistComplete: items.every((i) => i.checkedAt && (!i.requiresPhoto || i.fileId || i.photoWaivedReason)),
    estimateAccepted: estimate?.status === 'ACCEPTED',
    lessonsTotal: lessons?.total,
    lessonsCompleted: lessons?.completed,
  };
}

function transitionError(res: Exclude<ReturnType<typeof checkTransition>, { ok: true }>): DomainError {
  if (res.code === 'GUARD_FAILED') {
    if (res.guard === 'checklistComplete') return new DomainError('CHECKLIST_INCOMPLETE');
    if (res.guard === 'estimateAccepted') return new DomainError('ESTIMATE_NOT_ACCEPTED');
  }
  return new DomainError('TRANSITION_NOT_ALLOWED', { reason: res.code, guard: 'guard' in res ? res.guard : undefined });
}

export interface TransitionInput {
  orderId: string;
  to: OrderStatus;
  actor: ActorType;
  actorId?: string;
  comment?: string;
  event?: string;
  /** дополнительные поля заказа, которые меняются вместе со статусом */
  data?: Prisma.OrderUncheckedUpdateInput;
  /** ожидаемый текущий статус — защита от гонок двойного нажатия */
  expectFrom?: OrderStatus;
}

/**
 * Единственная точка смены статуса. Проверяет state machine на бэкенде,
 * пишет историю (кто, когда, комментарий) и порождает событие для уведомления.
 */
export async function transitionOrder(ctx: Ctx, input: TransitionInput, txArg?: Tx) {
  const run = async (tx: Tx) => {
    await tx.$queryRaw`SELECT id FROM "Order" WHERE id = ${input.orderId} FOR UPDATE`;
    const order = await tx.order.findUnique({ where: { id: input.orderId }, include: { service: true } });
    if (!order) throw new DomainError('NOT_FOUND');
    if (input.expectFrom && order.status !== input.expectFrom) throw new DomainError('TRANSITION_NOT_ALLOWED', { reason: 'STALE' });
    const res = checkTransition(order.service.flow, order.status, input.to, input.actor, await guardContext(tx, order.id));
    if (!res.ok) throw transitionError(res);
    const flow = getFlow(order.service.flow);
    const updated = await tx.order.update({
      where: { id: order.id },
      data: {
        ...input.data,
        status: input.to,
        completedAt: flow.done.includes(input.to) ? ctx.now() : undefined,
        cancelledAt: input.to === 'CANCELLED' ? ctx.now() : undefined,
      },
    });
    await tx.orderStatusHistory.create({
      data: {
        orderId: order.id,
        fromStatus: order.status,
        toStatus: input.to,
        event: input.event,
        actorType: input.actor,
        actorId: input.actorId,
        comment: input.comment,
      },
    });
    // барики: отмена возвращает списанные и отменяет начисление; выполненный и оплаченный заказ — кэшбек
    if (input.to === 'CANCELLED') await onOrderCancelled(ctx, tx, order.id);
    else if (flow.done.includes(input.to)) await accrueForOrder(ctx, tx, order.id);
    return { order: updated, from: order.status, extra: takePointsEvents(tx) };
  };
  const result = txArg ? await run(txArg) : await ctx.db.$transaction(run);
  const event: DomainEvent = { type: 'order.status', orderId: input.orderId, from: result.from, to: input.to };
  if (txArg) return { ...result, event };
  await ctx.notify.emit(event);
  for (const e of result.extra) await ctx.notify.emit(e);
  return { ...result, event };
}

/** Событие без смены статуса («Я на месте») — пишется в историю, клиент получает уведомление */
export async function recordEvent(ctx: Ctx, input: { orderId: string; code: string; actor: ActorType; actorId?: string }) {
  const order = await ctx.db.order.findUniqueOrThrow({ where: { id: input.orderId }, include: { service: true } });
  const ev = findEvent(order.service.flow, order.status, input.code);
  if (!ev || !ev.by.includes(input.actor)) throw new DomainError('TRANSITION_NOT_ALLOWED');
  await ctx.db.orderStatusHistory.create({
    data: { orderId: order.id, fromStatus: order.status, toStatus: order.status, event: input.code, actorType: input.actor, actorId: input.actorId },
  });
  await ctx.notify.emit({ type: 'order.event', orderId: order.id, code: input.code });
}

/** PRO-3: кнопка исполнителя — переход или событие */
export async function providerAction(ctx: Ctx, input: { orderId: string; providerId: string; action: string; comment?: string }) {
  const order = await ctx.db.order.findUnique({ where: { id: input.orderId }, include: { service: true } });
  if (!order || order.providerId !== input.providerId) throw new DomainError('NOT_FOUND');
  const t = findActionTransition(order.service.flow, order.status, input.action);
  if (t) {
    return transitionOrder(ctx, {
      orderId: order.id,
      to: t.to,
      actor: 'PROVIDER',
      actorId: input.providerId,
      event: input.action,
      comment: input.comment,
      expectFrom: order.status,
    });
  }
  await recordEvent(ctx, { orderId: order.id, code: input.action, actor: 'PROVIDER', actorId: input.providerId });
  return null;
}

/** PRO-4: отметка пункта чек-листа. Пункт с обязательным фото не отмечается без файла. */
export async function setChecklistItem(
  ctx: Ctx,
  input: { orderId: string; providerId: string; code: string; checked: boolean; fileId?: string },
) {
  const order = await ctx.db.order.findUnique({ where: { id: input.orderId }, include: { service: true } });
  if (!order || order.providerId !== input.providerId) throw new DomainError('NOT_FOUND');
  if (!getFlow(order.service.flow).checklistAt.includes(order.status)) throw new DomainError('TRANSITION_NOT_ALLOWED');
  const item = await ctx.db.orderChecklistItem.findUnique({ where: { orderId_code: { orderId: order.id, code: input.code } } });
  if (!item) throw new DomainError('NOT_FOUND');
  const fileId = input.fileId ?? item.fileId;
  if (input.checked && item.requiresPhoto && !fileId) throw new DomainError('PHOTO_REQUIRED');
  if (input.fileId) {
    const file = await ctx.db.orderFile.findUnique({ where: { id: input.fileId } });
    if (!file || file.orderId !== order.id) throw new DomainError('NOT_FOUND');
  }
  return ctx.db.orderChecklistItem.update({
    where: { id: item.id },
    data: { checkedAt: input.checked ? ctx.now() : null, fileId },
  });
}

/** ORD-6: отмена клиентом. Внутри порога — с удержанием; после начала — только оператор. */
export async function cancelByClient(ctx: Ctx, input: { orderId: string; clientId: string; reason?: string }) {
  const order = await ctx.db.order.findUnique({ where: { id: input.orderId }, include: { service: true } });
  if (!order || order.clientId !== input.clientId) throw new DomainError('NOT_FOUND');
  const settings = await getSettings(ctx.db);
  const policy = cancelPolicy({
    scheduledAt: order.scheduledAt,
    now: ctx.now(),
    freeHours: settings['cancel.freeHours'],
    lateFeePct: order.service.lateCancelFeePct,
    totalPrice: order.totalPrice,
  });
  if (policy.kind === 'operator_only') throw new DomainError('CANCEL_VIA_OPERATOR');
  const result = await ctx.db.$transaction(async (tx) => {
    const r = await transitionOrder(
      ctx,
      {
        orderId: order.id,
        to: 'CANCELLED',
        actor: 'CLIENT',
        actorId: input.clientId,
        comment: input.reason,
        expectFrom: order.status,
        data: { cancelFee: policy.fee, cancelReason: input.reason },
      },
      tx,
    );
    await tx.orderOffer.updateMany({ where: { orderId: order.id, status: 'OFFERED' }, data: { status: 'REVOKED' } });
    return r;
  });
  await ctx.notify.emit(result.event);
  for (const e of result.extra) await ctx.notify.emit(e);
  return { order: result.order, fee: policy.fee };
}

/** Что увидит клиент, нажав «Отменить»: бесплатно / с удержанием / через оператора */
export async function cancelPreview(ctx: Ctx, orderId: string, clientId: string) {
  const order = await ctx.db.order.findUnique({ where: { id: orderId }, include: { service: true } });
  if (!order || order.clientId !== clientId) throw new DomainError('NOT_FOUND');
  const settings = await getSettings(ctx.db);
  const flow = getFlow(order.service.flow);
  const cancellable = flow.clientCancellable.includes(order.status);
  return {
    cancellable,
    policy: cancelPolicy({
      scheduledAt: order.scheduledAt,
      now: ctx.now(),
      freeHours: settings['cancel.freeHours'],
      lateFeePct: order.service.lateCancelFeePct,
      totalPrice: order.totalPrice,
    }),
    canReschedule: cancellable && canRescheduleSelf(order.scheduledAt, ctx.now(), settings['cancel.freeHours']),
    freeHours: settings['cancel.freeHours'],
  };
}

/**
 * ORD-6: перенос клиентом — только вне порога. Если назначенный исполнитель занят в новое время,
 * заказ возвращается в «Новые» и исполнитель получает уведомление.
 */
export async function rescheduleByClient(ctx: Ctx, input: { orderId: string; clientId: string; scheduledAt: Date }) {
  const order = await ctx.db.order.findUnique({ where: { id: input.orderId }, include: { service: { include: { category: true } } } });
  if (!order || order.clientId !== input.clientId) throw new DomainError('NOT_FOUND');
  const settings = await getSettings(ctx.db);
  const flow = getFlow(order.service.flow);
  if (!flow.clientCancellable.includes(order.status) || !canRescheduleSelf(order.scheduledAt, ctx.now(), settings['cancel.freeHours'])) {
    throw new DomainError('RESCHEDULE_VIA_OPERATOR');
  }
  const service = await getServiceByCode(ctx.db, order.service.code);
  const events: DomainEvent[] = [{ type: 'order.rescheduled', orderId: order.id }];
  await ctx.db.$transaction(async (tx) => {
    await tx.$executeRaw`SELECT pg_advisory_xact_lock(hashtext(${'slots:' + service.providerRole}))`;
    await assertSlotFree(tx, service, input.scheduledAt, order.durationMinutes, ctx.now(), order.id);
    let keepProvider = false;
    if (order.providerId) {
      const end = new Date(input.scheduledAt.getTime() + order.durationMinutes * 60_000);
      const [p] = (await loadAvailability(tx, service.providerRole, input.scheduledAt, end, { excludeOrderId: order.id })).filter(
        (x) => x.id === order.providerId,
      );
      keepProvider = !!p && isProviderFree(p, { start: input.scheduledAt, end });
    }
    await tx.order.update({
      where: { id: order.id },
      data: { scheduledAt: input.scheduledAt, reminded24hAt: null, reminded1hAt: null },
    });
    await tx.orderStatusHistory.create({
      data: { orderId: order.id, fromStatus: order.status, toStatus: order.status, event: 'rescheduled', actorType: 'CLIENT', actorId: input.clientId },
    });
    if (order.providerId && !keepProvider) {
      const r = await transitionOrder(
        ctx,
        { orderId: order.id, to: flow.initial, actor: 'SYSTEM', event: 'rescheduled', data: { providerId: null } },
        tx,
      );
      events.push({ type: 'order.unassigned', orderId: order.id, providerId: order.providerId }, r.event);
    }
  });
  for (const e of events) await ctx.notify.emit(e);
}

/**
 * Перенос командой: в любой момент до начала работы. Если назначенный исполнитель занят в новое время —
 * заказ возвращается в «Новые» (и уйдёт в автораспределение). allowBusySlot — время вне свободных слотов.
 */
export async function rescheduleByAdmin(ctx: Ctx, input: { orderId: string; adminId: string; scheduledAt: Date; allowBusySlot?: boolean; comment?: string }) {
  const order = await ctx.db.order.findUnique({ where: { id: input.orderId }, include: { service: true } });
  if (!order) throw new DomainError('NOT_FOUND');
  const flow = getFlow(order.service.flow);
  if (order.status !== flow.initial && order.status !== flow.assigned) throw new DomainError('TRANSITION_NOT_ALLOWED');
  if (input.scheduledAt <= ctx.now()) throw new DomainError('SLOT_UNAVAILABLE');
  const service = await getServiceByCode(ctx.db, order.service.code);
  const events: DomainEvent[] = [{ type: 'order.rescheduled', orderId: order.id }];
  await ctx.db.$transaction(async (tx) => {
    await tx.$executeRaw`SELECT pg_advisory_xact_lock(hashtext(${'slots:' + service.providerRole}))`;
    if (!input.allowBusySlot) await assertSlotFree(tx, service, input.scheduledAt, order.durationMinutes, ctx.now(), order.id);
    let keepProvider = false;
    if (order.providerId) {
      const end = new Date(input.scheduledAt.getTime() + order.durationMinutes * 60_000);
      const [p] = (await loadAvailability(tx, service.providerRole, input.scheduledAt, end, { excludeOrderId: order.id })).filter((x) => x.id === order.providerId);
      keepProvider = !!p && isProviderFree(p, { start: input.scheduledAt, end });
    }
    // действующее предложение было на старое время — отзываем
    await tx.orderOffer.updateMany({ where: { orderId: order.id, status: 'OFFERED', providerId: { not: null } }, data: { status: 'REVOKED', respondedAt: ctx.now() } });
    await tx.order.update({ where: { id: order.id }, data: { scheduledAt: input.scheduledAt, reminded24hAt: null, reminded1hAt: null } });
    await tx.orderStatusHistory.create({
      data: { orderId: order.id, fromStatus: order.status, toStatus: order.status, event: 'rescheduled', actorType: 'ADMIN', actorId: input.adminId, comment: input.comment },
    });
    if (order.providerId && !keepProvider) {
      const r = await transitionOrder(ctx, { orderId: order.id, to: flow.initial, actor: 'ADMIN', actorId: input.adminId, event: 'rescheduled', data: { providerId: null, companyId: null } }, tx);
      events.push({ type: 'order.unassigned', orderId: order.id, providerId: order.providerId }, r.event);
    }
  });
  for (const e of events) await ctx.notify.emit(e);
  return { keptProvider: events.length === 1 };
}

/** ORD-7: черновик повтора — те же параметры и адрес, новое время выбирает клиент */
export async function repeatDraft(db: Db, orderId: string, clientId: string) {
  const order = await db.order.findUnique({ where: { id: orderId }, include: { service: true } });
  if (!order || order.clientId !== clientId) throw new DomainError('NOT_FOUND');
  return {
    serviceCode: order.service.code,
    params: order.params as Record<string, unknown>,
    addressText: order.addressText,
    districtId: order.districtId,
    note: order.note,
    repeatOfId: order.id,
  };
}

/** PAY-1: ручная отметка «оплачено». PAY-3: начисление агентству — только с оплаченных. */
export async function markPaid(ctx: Ctx, input: { orderId: string; by: { type: 'ADMIN' | 'PROVIDER'; id: string }; paymentMethodId?: string }) {
  const provider = new ManualPaymentProvider();
  const settings = await getSettings(ctx.db);
  const events: DomainEvent[] = [];
  const res = await ctx.db.$transaction(async (tx) => {
    const order = await tx.order.findUnique({ where: { id: input.orderId }, include: { client: { include: { agency: true } } } });
    if (!order) throw new DomainError('NOT_FOUND');
    if (input.by.type === 'PROVIDER' && order.providerId !== input.by.id) throw new DomainError('NOT_FOUND');
    if (order.paymentStatus === 'PAID' || order.status === 'CANCELLED') throw new DomainError('NOT_PAID_STATE');
    const res = await provider.confirmPayment(
      { orderId: order.id, amount: order.totalPrice - order.pointsUsed, currency: 'AMD', description: `#${order.number}` },
      { markedBy: input.by.id },
    );
    const now = ctx.now();
    await tx.payment.create({
      data: { orderId: order.id, provider: res.provider, amount: order.totalPrice - order.pointsUsed, status: 'PAID', markedById: input.by.id },
    });
    const updated = await tx.order.update({
      where: { id: order.id },
      data: { paymentStatus: 'PAID', paidAt: now, paymentMethodId: input.paymentMethodId ?? order.paymentMethodId },
    });
    const agency = order.client.agency;
    if (agency && isAgencyAttributionActive(order.client.agencyAttachedAt, order.createdAt, settings['agency.attributionMonths'])) {
      await tx.agencyCommission.create({
        data: {
          agencyId: agency.id,
          orderId: order.id,
          pct: agency.commissionPct,
          amount: agencyCommission(order.totalPrice - order.pointsUsed, agency.commissionPct),
          period: yerevanMonthKey(now),
        },
      });
    }
    // заказ выполнил сотрудник партнёра — фиксируем доход партнёра по его условиям
    await recordPartnerEarning(tx, order, settings, now);
    // уже выполнен — сразу кэшбек
    await accrueForOrder(ctx, tx, order.id);
    events.push(...takePointsEvents(tx));
    return updated;
  });
  for (const e of events) await ctx.notify.emit(e);
  return res;
}

export function isOrderActive(flowCode: Parameters<typeof isTerminal>[0], status: OrderStatus) {
  return !isTerminal(flowCode, status);
}