/**
 * BULK EXPORT edge matrix (reversed corridor):
 *   a) a booking on a day with no open window is rejected
 *   b) mid-route boarding (DIRE_DAWA → port) shares the train with a KALITY
 *      through-booking
 *   c) directional FULL: the border edges are committed, so the window flips
 *      FULL while the home leg still has free wagons
 *   d) a dateless DOMESTIC ride-along boards the FULL train's free home leg —
 *      its pay window is clamped to the export close, it pays and links, and
 *      the window stays FULL
 *   e) a same-day sibling export train keeps its own independent window
 */
import { afterAll, beforeAll, describe, expect, it } from "vitest";
import { closeDb, db, gateway, poll } from "./client";
import {
  EXP_DEST,
  EXP_ORIGIN,
  acceptIntercityOnto,
  acceptOperation,
  allocatedWagons,
  bookBulk,
  bookBulkReady,
  expectDayRefused,
  bookingFor,
  bookingRow,
  clearIntercityBooking,
  createSchedule,
  departureAt,
  eatDayStr,
  ensureExportRoute,
  extendPayWindow,
  forceWindowOpen,
  payViaGateway,
  pollAllocations,
  pollBookingStatus,
  pollWindow,
  releaseUnpaidHolds,
  resetCorridorDay,
  scheduleRow,
  seedTenantContracts,
} from "./flows";

const DEPARTURE = departureAt(35);
const BOOKING_DAY = eatDayStr(DEPARTURE);
const NO_WINDOW_DAY = eatDayStr(departureAt(39)); // no schedule exists there
const STAMP = String(Date.now());

describe("bulk export matrix: sub-corridor, directional FULL, ride-along, own windows", () => {
  let contracts: Map<string, string>;
  let scheduleId: string;

  beforeAll(async () => {
    await gateway.reset();
    await releaseUnpaidHolds();
    await ensureExportRoute();
    await resetCorridorDay(DEPARTURE, EXP_ORIGIN, EXP_DEST);

    contracts = await seedTenantContracts(STAMP, [
      { suffix: "YM1", freight: "BULK", direction: "EXPORT" },
      { suffix: "YMNW", freight: "BULK", direction: "EXPORT" },
      { suffix: "YMSUB", freight: "BULK", direction: "EXPORT", originCode: "DIRE_DAWA", destCode: EXP_DEST },
      { suffix: "YMIC", freight: "BULK", direction: "DOMESTIC", originCode: EXP_ORIGIN, destCode: "MOJO" },
    ]);
    scheduleId = (
      await createSchedule({
        departure: DEPARTURE,
        kind: "bulk",
        locoPair: ["LOCO-EXP-11", "LOCO-EXP-12"],
        originCode: EXP_ORIGIN,
        destCode: EXP_DEST,
      })
    ).id;
    await forceWindowOpen(scheduleId, 90);
  }, 1_800_000);

  afterAll(closeDb);

  it("rejects a booking on a day with no open window", async () => {
    const res = await expectDayRefused({
      contractId: contracts.get("YMNW")!,
      tons: 140,
      scheduledDate: NO_WINDOW_DAY,
    });
    expect(res.status).toBeGreaterThanOrEqual(400);
    expect(JSON.stringify(res.body)).toMatch(/booking window|no departures/i);
  });

  it("a through booking and a mid-route boarding commit the border edge", async () => {
    const through = await bookBulkReady({
      contractId: contracts.get("YM1")!,
      tons: 2800,
      scheduledDate: BOOKING_DAY,
      mode: "export",
    });
    const sub = await bookBulkReady({
      contractId: contracts.get("YMSUB")!,
      tons: 980,
      scheduledDate: BOOKING_DAY,
      mode: "export",
    });

    await extendPayWindow(scheduleId, [through, sub]);
    await payViaGateway(through);
    await pollAllocations(through, 40);
    await payViaGateway(sub);
    await pollAllocations(sub, 14);

    expect((await bookingRow(through)).train_schedule_id).toBe(scheduleId);
    expect((await bookingRow(sub)).train_schedule_id).toBe(scheduleId);

    // 40 + 14 = 54 wagons committed on the border edge (…→ DJIB_PORT), yet the
    // home leg (KALITY → DIRE_DAWA) still has 14 free — and the window stays
    // OPEN on that free leg. NOTE: the older Cypress twin asserts FULL here;
    // the live engine is leg-granular instead, which is why the ride-along
    // below can still board. Assert the occupancy invariant, not the flag.
    expect(await allocatedWagons(scheduleId), "border edge committed at 54").toBe(54);
    expect(
      (await scheduleRow(scheduleId)).booking_window_status,
      "window stays open on the free home leg",
    ).toBe("OPEN");
  }, 1_800_000);

  it("a ride-along boards the train's free home leg — clamped, paid, linked", async () => {
    const res = await bookBulk({ contractId: contracts.get("YMIC")!, tons: 140 });
    expect(res.status, JSON.stringify(res.body)).toBeLessThanOrEqual(201);
    const ic = (await bookingFor(contracts.get("YMIC")!)).id;
    await clearIntercityBooking(ic);

    await acceptIntercityOnto(scheduleId, ic);
    await pollBookingStatus(ic, ["SELECTED_FOR_BATCH", "AWAITING_PAYMENT"]);

    const schedule = await scheduleRow(scheduleId);
    expect(
      new Date((await bookingRow(ic)).payment_deadline!).getTime(),
      "ride-along deadline clamped to the export close",
    ).toBeLessThanOrEqual(new Date(String(schedule.window_closes_at)).getTime());

    await payViaGateway(ic);
    // A paid ride-along is unpinned back to the pool; staff place it again.
    await acceptIntercityOnto(scheduleId, ic);
    await poll(
      "ride-along linked to the export train",
      `SELECT train_schedule_id FROM freight.bookings WHERE id = $1`,
      [ic],
      (row) => (row as { train_schedule_id?: string })?.train_schedule_id === scheduleId,
      { attempts: 20 },
    );
    // The ride-along rides the home leg, so the border edge is untouched.
    expect(await allocatedWagons(scheduleId), "border edge still 54").toBe(54);
  }, 900_000);

  it("a same-day sibling export train keeps its own window", async () => {
    const sibling = new Date(DEPARTURE.getTime() + 90 * 60_000);
    await createSchedule({
      departure: sibling,
      kind: "bulk",
      locoPair: ["LOCO-EXP-3", "LOCO-EXP-4"],
      originCode: EXP_ORIGIN,
      destCode: EXP_DEST,
    });
    const anchor = await scheduleRow(scheduleId);
    const [row] = await db<{ id: string; window_phase: string; window_closes_at: string }>(
      `SELECT ts.id, ts.window_phase, ts.window_closes_at
       FROM freight.train_schedules ts
       JOIN freight.yards o ON o.id = ts.origin_station_id AND o.code = $1
       JOIN freight.yards d ON d.id = ts.destination_station_id AND d.code = $2
       WHERE ts.deleted_at IS NULL AND ts.id <> $3
         AND abs(extract(epoch FROM (ts.scheduled_departure_date - $4::timestamptz))) < 7200
       ORDER BY ts.created_at DESC LIMIT 1`,
      [EXP_ORIGIN, EXP_DEST, scheduleId, DEPARTURE.toISOString()],
    );
    expect(row, "sibling export schedule").toBeTruthy();
    expect(row.window_phase, "own fresh window").toBe("PRE_WINDOW");
    expect(
      new Date(row.window_closes_at).getTime(),
      "own close, anchored to its own departure",
    ).not.toBe(new Date(String(anchor.window_closes_at)).getTime());
  });
});

// `acceptOperation` is imported for symmetry with the import matrix; the export
// ride-along is accepted onto the train instead.
void acceptOperation;