import { describe, expect, it } from "vitest";
import {
  cargoTypes,
  gameConfig,
  gameConfigSchema,
  locations,
  shipModels,
  skills,
} from "../src/index";

// The Moon sits a fixed 0.384M km from Earth (Step 3.3).
const EARTH_MOON_MILLION_KM = 0.384;

describe("game config", () => {
  it("passes the schema", () => {
    expect(() => gameConfigSchema.parse(gameConfig)).not.toThrow();
  });

  it("uses 1 real minute = 1 game hour", () => {
    expect(gameConfig.timeCompression).toBe(60);
  });

  it("has one Long Haul cut-off per Long Haul level", () => {
    const longHaul = skills.find((s) => s.id === "long-haul")!;
    expect(gameConfig.longHaulCutoffsMillionKm).toHaveLength(longHaul.maxLevel);
  });

  it("covers fuel for at least three Courier runs from Earth after the deal (no soft-lock)", () => {
    // Amended Step 2.5 (CR-001). Assume the player always flies the lowest-paying
    // (light) tutorial contract; Phase 12 replaces these with measured numbers.
    const courier = shipModels.find((s) => s.id === "courier")!;
    const earth = locations.find((l) => l.id === "earth")!;
    const standard = cargoTypes.find((c) => c.id === "standard")!;

    const lightTutorialPayout =
      standard.basePayPerTonnePerMillionKm *
      gameConfig.tutorialMassTonnes.light *
      EARTH_MOON_MILLION_KM *
      gameConfig.tutorialPayoutShare;
    const earned =
      lightTutorialPayout * gameConfig.tutorialRunsBeforeDeal + gameConfig.startingCredits;
    const fuelFromEarth =
      EARTH_MOON_MILLION_KM * courier.fuelCostPerMillionKm * earth.launchCostMultiplier;
    expect(earned).toBeGreaterThanOrEqual(3 * fuelFromEarth);
  });

  it("sizes the tutorial board and loaner for the three mass tiers", () => {
    expect(gameConfig.tutorialBoardSize).toBe(3);
    const loaner = shipModels.find((s) => s.id === gameConfig.tutorialLoanerShipModelId)!;
    expect(loaner.purchasable).toBe(false);
    expect(gameConfig.tutorialMassTonnes.full).toBeLessThanOrEqual(loaner.cargoCapacityTonnes);
  });

  it("lends the Courier price plus an Earth bay lease in the deal", () => {
    const courier = shipModels.find((s) => s.id === "courier")!;
    const earth = locations.find((l) => l.id === "earth")!;
    expect(gameConfig.dealLoanAmount).toBeGreaterThan(0);
    expect(gameConfig.dealLoanAmount).toBe(courier.price + earth.bayLeasePrice);
  });

  it("has a contract mass band each purchasable ship can carry", () => {
    for (const ship of shipModels.filter((s) => s.purchasable)) {
      expect(
        gameConfig.contractMassBands.some((band) => band.max <= ship.cargoCapacityTonnes),
      ).toBe(true);
    }
    const total = gameConfig.contractMassBands.reduce((sum, b) => sum + b.count, 0);
    expect(total).toBe(gameConfig.contractBoardSize);
  });

  it("rests a pilot for at least one contract board period of real time (CR-004)", () => {
    const restRealMinutes = (gameConfig.restGameHours * 60) / gameConfig.timeCompression;
    expect(restRealMinutes).toBeGreaterThanOrEqual(gameConfig.contractBoardPeriodRealMinutes);
  });

  it("has positive duty numbers (CR-004)", () => {
    expect(gameConfig.dutyLimitGameHours).toBeGreaterThan(0);
    expect(gameConfig.longHaulDutyBonusGameHours).toBeGreaterThan(0);
  });
});