import { content } from "@deadhead/content";
import { describe, expect, it } from "vitest";
import { makeOwner, setCredits, useTestDatabase } from "./db";
import { call, getState, putBoard, signUp, testContract, useTestApp } from "./game";

const database = useTestDatabase();
const testApp = useTestApp(database);

describe("concurrency and money safety", () => {
  it("lets only one of two simultaneous purchases through when only one is affordable", async () => {
    const { app } = testApp();
    const guest = await signUp(app);
    const price = content.shipModel("courier")!.price;
    await setCredits(database().db, guest.playerId, price + price / 2);

    const responses = await Promise.all([
      call(app, guest, "POST", "/api/ships", { modelId: "courier" }),
      call(app, guest, "POST", "/api/ships", { modelId: "courier" }),
    ]);
    expect(responses.map((r) => r.statusCode).sort()).toEqual([200, 409]);

    const state = await getState(app, guest);
    expect(state.ships).toHaveLength(1);
    expect(state.company.credits).toBe(price / 2);
  });

  it("never goes negative under many simultaneous purchases", async () => {
    const { app } = testApp();
    const guest = await signUp(app);
    const price = content.shipModel("courier")!.price;
    await setCredits(database().db, guest.playerId, price * 3);

    const responses = await Promise.all(
      Array.from({ length: 8 }, () =>
        call(app, guest, "POST", "/api/ships", { modelId: "courier" }),
      ),
    );
    expect(responses.filter((r) => r.statusCode === 200)).toHaveLength(3);
    const state = await getState(app, guest);
    expect(state.ships).toHaveLength(3);
    expect(state.company.credits).toBe(0);
  });

  it("accepts a contract only once when dispatched twice at the same moment", async () => {
    const { app } = testApp();
    const { db } = database();
    const guest = await signUp(app);
    const shipId = await makeOwner(db, guest.playerId, guest.avatarId);
    await setCredits(db, guest.playerId, 10_000);
    const contract = testContract();
    await putBoard(db, guest.playerId, [contract]);

    const body = { kind: "contract", contractId: contract.id, shipId, pilotId: guest.avatarId };
    const responses = await Promise.all([
      call(app, guest, "POST", "/api/dispatches", body),
      call(app, guest, "POST", "/api/dispatches", body),
    ]);
    expect(responses.map((r) => r.statusCode).sort()).toEqual([200, 409]);
    const state = await getState(app, guest);
    expect(state.activeDispatches).toHaveLength(1);
    expect(state.company.credits).toBe(10_000 - state.activeDispatches[0]!.fuelCost);
  });

  it("leases one bay when the same lease is sent twice at once", async () => {
    const { app } = testApp();
    const guest = await signUp(app);
    await setCredits(database().db, guest.playerId, 100_000);
    const responses = await Promise.all([
      call(app, guest, "POST", "/api/bays", { locationId: "moon" }),
      call(app, guest, "POST", "/api/bays", { locationId: "moon" }),
    ]);
    expect(responses.map((r) => r.statusCode).sort()).toEqual([200, 409]);
    const state = await getState(app, guest);
    expect(state.bays).toHaveLength(1);
    expect(state.company.credits).toBe(100_000 - content.location("moon")!.bayLeasePrice);
  });
});