import type { Dispatch, Ship } from "@deadhead/schema";
import { beforeEach, describe, expect, it, vi } from "vitest";
import { loadArt, resetArtRegistration, type AssetLoader } from "../src/map/art/load";
import { artManifest } from "../src/map/art/manifest";
import { sceneVisuals } from "../src/map/art/visuals";
import { buildScene } from "../src/map/scene";
import { samplePlayerState, shipExtras } from "./render";

const NOW = Date.parse("2100-01-01T00:00:00Z");

const flight = (id: string, shipId: string, tutorial = false): Dispatch => ({
  id,
  shipId,
  pilotId: "p",
  contract: null,
  originId: "earth",
  destinationId: "moon",
  tutorial,
  departureAt: NOW - 60_000,
  arrivalAt: NOW + 60_000,
  distanceMillionKm: 0.4,
  fuelCost: 0,
  fuelBurnedFu: 0,
  expectedPayout: 0,
  seed: 1,
  status: "in-flight",
  resolvedAt: null,
});

const flying = (id: string, modelId: string, dispatchId: string): Ship => ({
  id,
  modelId,
  name: id,
  status: "in-flight",
  locationId: null,
  dispatchId,
  pilotId: null,
  lastArrivalAt: 0,
  ...shipExtras(modelId),
});

/** Ships of every model in flight, plus the tutorial loaner. */
const scene = () =>
  buildScene(
    samplePlayerState({
      ships: [
        flying("s1", "courier", "d1"),
        flying("s2", "freighter", "d2"),
        flying("s3", "bulk-hauler", "d3"),
      ],
      activeDispatches: [
        flight("d1", "s1"),
        flight("d2", "s2"),
        flight("d3", "s3"),
        flight("d4", "loaner", true),
      ],
    }),
    NOW,
  );

/** A fake PixiJS `Assets`: every alias loads as "tex:<alias>" unless it is in `failing`. */
function fakeLoader(failing: string[] = []) {
  const loader = {
    bundles: [] as Record<string, string>[],
    addBundle: vi.fn((_name: string, assets: Record<string, string>) => {
      loader.bundles.push(assets);
    }),
    load: vi.fn(async (alias: string) => {
      if (failing.includes(alias)) throw new Error("404");
      return `tex:${alias}`;
    }),
  };
  return loader satisfies AssetLoader<string>;
}

describe("map art loading (CR-003)", () => {
  beforeEach(() => resetArtRegistration());

  it("uses a texture for every location, the Sun, the background and every ship", async () => {
    const warn = vi.fn();
    const textures = await loadArt(fakeLoader(), 1, warn);
    const visuals = sceneVisuals(scene(), textures);

    expect(warn).not.toHaveBeenCalled();
    expect(visuals.background).toEqual({ kind: "sprite", texture: "tex:bg" });
    expect(visuals.sun).toEqual({ kind: "sprite", texture: "tex:sun" });
    for (const [id, visual] of visuals.locations) {
      expect(visual, id).toMatchObject({ kind: "sprite" });
    }
    expect(Object.fromEntries(visuals.flights)).toEqual({
      d1: { kind: "sprite", texture: "tex:ship-courier" },
      d2: { kind: "sprite", texture: "tex:ship-freighter" },
      d3: { kind: "sprite", texture: "tex:ship-bulk-hauler" },
      d4: { kind: "sprite", texture: "tex:ship-company-courier" },
    });
  });

  it("draws a placeholder for one failed asset, textures for the rest, and warns once", async () => {
    const warn = vi.fn();
    const textures = await loadArt(fakeLoader(["body-mars"]), 1, warn);
    const visuals = sceneVisuals(scene(), textures);

    expect(visuals.locations.get("mars")).toEqual({ kind: "placeholder" });
    for (const [id, visual] of visuals.locations) {
      if (id !== "mars") expect(visual, id).toMatchObject({ kind: "sprite" });
    }
    expect(warn).toHaveBeenCalledTimes(1);
    expect(warn.mock.calls[0]![0]).toContain("body-mars");
  });

  it("draws Jupiter's badge as a placeholder when its art was not provided", async () => {
    const visuals = sceneVisuals(scene(), await loadArt(fakeLoader(), 1, vi.fn()));
    expect(artManifest.assets["badge-cloud-platform"]!.file).toBeNull();
    expect(visuals.badges.get("jupiter-cloud-platform")).toEqual({ kind: "placeholder" });
  });

  it("requests the 2x variants at device pixel ratio 2, and 1x below it", async () => {
    const hiDpi = fakeLoader();
    await loadArt(hiDpi, 2, vi.fn());
    expect(hiDpi.addBundle).toHaveBeenCalledTimes(1);
    expect(hiDpi.bundles[0]!["body-earth"]).toBe("/assets/map-gen/body-earth@2x.png");
    expect(hiDpi.bundles[0]!["ship-courier"]).toBe("/assets/map-gen/ship-courier@2x.png");
    expect(hiDpi.bundles[0]!.bg).toBe("/assets/map-gen/bg.webp");
    expect(hiDpi.load).toHaveBeenCalledWith("body-earth");

    resetArtRegistration();
    const normal = fakeLoader();
    await loadArt(normal, 1.5, vi.fn());
    expect(normal.bundles[0]!["body-earth"]).toBe("/assets/map-gen/body-earth@1x.png");
  });
});