import { content } from "@deadhead/content";
import { describe, expect, it } from "vitest";
import {
  createDispatchRecord,
  createRepositionRecord,
  resolveDispatch,
  type Contract,
  type PilotState,
  type ResolveInput,
  type ShipState,
} from "../src/index";

const now = Date.parse("2100-01-01T00:30:00Z");
const contract: Contract = {
  id: "c1",
  originId: "earth",
  destinationId: "moon",
  cargoTypeId: "standard",
  tier: 0,
  massTonnes: 10,
  payout: 2000,
  requiredSkill: null,
  requiredLongHaulLevel: 0,
  offeredAt: Date.parse("2100-01-01T00:00:00Z"),
  expiresAt: Date.parse("2100-01-01T01:00:00Z"),
  firstContact: false,
};
const ship: ShipState = { id: "s1", modelId: "courier", locationId: "earth", inFlight: false };
const pilot: PilotState = {
  id: "p1",
  isAvatar: false,
  assignedShipId: "s1",
  inFlight: false,
  skills: {},
};
const record = createDispatchRecord(
  { id: "d1", ship, pilot, contract, tutorial: false, now, worldSeed: 7 },
  content,
);
const arrived: ResolveInput = {
  record,
  pilotIsAvatar: false,
  discoveredIds: new Set(["earth", "moon"]),
  now: record.arrivalAt,
};

const resolve = (input: ResolveInput) => {
  const result = resolveDispatch(input, content);
  if (result.status !== "resolved") throw new Error("expected a resolution");
  return result.resolution;
};

describe("dispatch resolution", () => {
  it("reports in flight before arrival", () => {
    expect(resolveDispatch({ ...arrived, now: record.arrivalAt - 1 }, content)).toEqual({
      status: "in-flight",
    });
  });

  it("resolves at and after arrival, moving the ship to the destination", () => {
    expect(resolve(arrived).shipLocationId).toBe("moon");
    expect(resolveDispatch({ ...arrived, now: record.arrivalAt + 60_000 }, content).status).toBe(
      "resolved",
    );
  });

  it("deducts pilot pay for a hired pilot and grants XP", () => {
    const resolution = resolve(arrived);
    expect(resolution.credits).toBe(2000 - content.config.pilotPayPerDelivery);
    expect(resolution.pilotXp).toBeGreaterThan(0);
  });

  it("deducts no pilot pay when the avatar flies", () => {
    expect(resolve({ ...arrived, pilotIsAvatar: true }).credits).toBe(2000);
  });

  it("pays exactly the stored tutorial share on a tutorial run", () => {
    const tutorialRecord = createDispatchRecord(
      {
        id: "t1",
        ship: { ...ship, id: "loaner" },
        pilot: { ...pilot, id: "avatar", isAvatar: true, assignedShipId: null },
        contract: { ...contract, payout: 1000 },
        tutorial: true,
        now,
        worldSeed: 7,
      },
      content,
    );
    const resolution = resolve({ ...arrived, record: tutorialRecord, pilotIsAvatar: true });
    expect(resolution.credits).toBe(1000);
    expect(resolution.shipLocationId).toBe("moon");
  });

  it("marks an undiscovered destination as discovered", () => {
    expect(resolve(arrived).discoversDestination).toBe(false);
    expect(resolve({ ...arrived, discoveredIds: new Set(["earth"]) }).discoversDestination).toBe(
      true,
    );
  });

  it("gives no credits or XP for a reposition", () => {
    const reposition = createRepositionRecord(
      { id: "r1", ship, pilot, destinationId: "moon", now, worldSeed: 7 },
      content,
    );
    expect(resolve({ ...arrived, record: reposition, now: reposition.arrivalAt })).toEqual({
      credits: 0,
      pilotXp: 0,
      shipLocationId: "moon",
      discoversDestination: false,
    });
  });

  it("returns identical results when resolving the same dispatch twice", () => {
    expect(resolveDispatch(arrived, content)).toEqual(resolveDispatch(arrived, content));
  });
});