import { content } from "@deadhead/content";
import { MS_PER_MINUTE, upgradeShopMs } from "@deadhead/sim";
import { describe, expect, it } from "vitest";
import { turnaroundMs } from "../src/game/independent";
import {
  addPilot,
  addShip,
  edit,
  newTestApp,
  readSave,
  setCredits,
  signUpOwner,
  type TestApp,
} from "./support";

const SHOP_MS = upgradeShopMs(1, content.config);
const LIMIT = content.config.dutyLimitGameHours;
const pilotIn = async (test: TestApp, id: string) =>
  (await test.app.call("getPlayerState", {})).pilots.find((p) => p.id === id)!;

/** An owner with a Courier at Earth crewed by `p1`, one trip short of the duty limit. */
async function tiredPilot(test: TestApp) {
  await signUpOwner(test.app);
  await setCredits(test.app, 100_000);
  await addShip(test.app, { id: "f1", modelId: "courier", name: "Wren" });
  await addPilot(test.app, { id: "p1", name: "Ada", assignedShipId: "f1", dutyHours: LIMIT - 0.5 });
}

const upgrade = (test: TestApp) =>
  test.app.call("startUpgrade", { shipId: "f1", upgradeId: "engines" });

describe("shop time counts as rest (Step 23.2, decision 0.5.135)", () => {
  it("brings a pilot near the duty limit out of the shop with no duty, ready to fly", async () => {
    const test = newTestApp();
    await tiredPilot(test);
    const startedAt = test.clock.now;
    await upgrade(test);
    expect((await pilotIn(test, "p1")).restingInShopUntil).toBe(startedAt + SHOP_MS);

    test.clock.now = startedAt + SHOP_MS;
    const pilot = await pilotIn(test, "p1");
    expect(pilot.dutyHours).toBe(0);
    expect(pilot.resting).toBe(false);
    expect(pilot.restingInShopUntil).toBeNull();
    const { dispatch } = await test.app.call("createDispatch", {
      kind: "reposition",
      shipId: "f1",
      pilotId: "p1",
      destinationId: "moon",
    });
    expect(dispatch.status).toBe("in-flight");
  });

  it("keeps the duty of a pilot who left the ship and flew another one", async () => {
    const test = newTestApp();
    await tiredPilot(test);
    await addShip(test.app, { id: "f2", modelId: "courier", name: "Kite" });
    // Fresh enough that the Moon trip adds duty without forcing a rest.
    await edit(test.app, (save) => {
      save.pilots.find((p) => p.id === "p1")!.dutyHours = 2;
    });
    const startedAt = test.clock.now;
    await upgrade(test);
    await test.app.call("unassignPilot", { pilotId: "p1" });
    expect((await pilotIn(test, "p1")).restingInShopUntil).toBeNull();
    await test.app.call("assignPilot", { pilotId: "p1", shipId: "f2" });
    await test.app.call("createDispatch", {
      kind: "reposition",
      shipId: "f2",
      pilotId: "p1",
      destinationId: "moon",
    });

    test.clock.now = startedAt + SHOP_MS + 60 * MS_PER_MINUTE;
    const pilot = await pilotIn(test, "p1");
    // At the Moon with the trip added to their duty, not reset by the shop.
    expect(pilot.status).toBe("idle");
    expect(pilot.dutyHours).toBeGreaterThan(2);
    expect((await readSave(test.app)).ships.find((s) => s.id === "f1")!.shopPilotId).toBeNull();
  });

  it("doesn't reset a pilot who left the ship and came back during the upgrade", async () => {
    const test = newTestApp();
    await tiredPilot(test);
    const startedAt = test.clock.now;
    await upgrade(test);
    await test.app.call("unassignPilot", { pilotId: "p1" });
    await test.app.call("assignPilot", { pilotId: "p1", shipId: "f1" });
    test.clock.now = startedAt + SHOP_MS;
    expect((await pilotIn(test, "p1")).dutyHours).toBe(LIMIT - 0.5);
  });

  it("frees a pilot whose rest would have ended after the upgrade, and leaves a shorter rest alone", async () => {
    const test = newTestApp();
    await tiredPilot(test);
    const startedAt = test.clock.now;
    await addShip(test.app, { id: "f2", modelId: "courier", name: "Kite" });
    await addPilot(test.app, { id: "p2", name: "Bo", assignedShipId: "f2" });
    await edit(test.app, (save) => {
      save.pilots.find((p) => p.id === "p1")!.restEndsAt = startedAt + 3 * SHOP_MS;
      save.pilots.find((p) => p.id === "p2")!.restEndsAt = startedAt + SHOP_MS / 2;
    });
    await upgrade(test);
    await test.app.call("startUpgrade", { shipId: "f2", upgradeId: "engines" });

    // The short rest runs its course alongside the upgrade.
    test.clock.now = startedAt + SHOP_MS / 2;
    expect((await pilotIn(test, "p2")).resting).toBe(false);
    expect((await pilotIn(test, "p1")).resting).toBe(true);

    test.clock.now = startedAt + SHOP_MS;
    const p1 = await pilotIn(test, "p1");
    expect(p1.resting).toBe(false);
    expect(p1.dutyHours).toBe(0);
  });

  it("brings an Independent pilot out rested, flying after the turnaround", async () => {
    const test = newTestApp();
    await tiredPilot(test);
    await test.app.call("buyDispatchOffice", {});
    await edit(test.app, (save) => {
      save.pilots.find((p) => p.id === "p1")!.restEndsAt = test.clock.now + 3 * SHOP_MS;
    });
    const startedAt = test.clock.now;
    await upgrade(test);
    await test.app.call("setPilotMode", { pilotId: "p1", mode: "independent" });

    test.clock.now = startedAt + SHOP_MS;
    await test.app.call("getPlayerState", {});
    const save = await readSave(test.app);
    const p1 = save.pilots.find((p) => p.id === "p1")!;
    expect(p1.dutyHours).toBe(0);
    expect(p1.restEndsAt).toBe(startedAt + SHOP_MS);
    expect(p1.nextDecisionAt).toBe(startedAt + SHOP_MS + turnaroundMs());
  });

  it("gives the same save caught up at once as in live play", async () => {
    const once = newTestApp();
    await tiredPilot(once);
    await once.app.call("buyDispatchOffice", {});
    await upgrade(once);
    await once.app.call("setPilotMode", { pilotId: "p1", mode: "independent" });
    const { code } = await once.app.call("exportSave", {});
    const live = newTestApp();
    live.clock.now = once.clock.now;
    await live.app.call("importSave", { code });

    const end = once.clock.now + 3 * 60 * MS_PER_MINUTE;
    once.clock.now = end;
    await once.app.call("getPlayerState", {});
    while (live.clock.now < end) {
      live.clock.now = Math.min(end, live.clock.now + 30_000);
      await live.app.call("getPlayerState", {});
    }

    const a = await readSave(once.app);
    const b = await readSave(live.app);
    expect(a.dispatches.some((d) => d.independent)).toBe(true);
    expect({ ...b, lastTimeSeen: 0 }).toEqual({ ...a, lastTimeSeen: 0 });
  });
});