/**
 * @file Pets.test.tsx
 * @description The mascot's custom pets: `PetSprite` plays the spritesheet
 * row of Sagi's mood and steps through its frames (a still image bobs instead),
 * and `PetMenu` hides the mascot, sizes it, picks Sagi / a featured pet
 * (downloading it on the first pick) / an own pet, deletes an own pet (falling
 * back to Sagi when it was the one worn), and uploads an image.
 * @author Nguyễn Ngọc Trí Vĩ <vinnt@smartgift.vn>
 */
import { describe, it, expect, vi, beforeEach, afterEach } from "vitest";
import { render, screen, fireEvent, act, waitFor } from "@testing-library/react";

vi.mock("../../../lib/api", async (importOriginal) => {
  const actual = await importOriginal<Record<string, unknown>>();
  const own = {
    id: "p-aaaaaaaaaaaa",
    displayName: "My cat",
    description: "",
    kind: "image",
    source: "upload",
  };
  return {
    ...actual,
    api: {
      pets: {
        spriteUrl: (id: string) => `/api/pets/${id}/sprite`,
        list: vi.fn(async () => ({
          pets: [own],
          featured: [
            { id: "goku", displayName: "Goku", by: "hackminit", installed: false, page: "" },
          ],
          sheet: { width: 1536, height: 1872, cellWidth: 192, cellHeight: 208 },
        })),
        installFeatured: vi.fn(async () => ({
          pet: {
            id: "cp-goku",
            displayName: "Goku",
            description: "",
            kind: "codex",
            source: "featured",
            featuredId: "goku",
          },
        })),
        upload: vi.fn(async () => ({
          pet: {
            id: "p-bbbbbbbbbbbb",
            displayName: "Dog",
            description: "",
            kind: "image",
            source: "upload",
          },
        })),
        importBundle: vi.fn(),
        remove: vi.fn(async () => ({ ok: true })),
      },
    },
  };
});

import { api } from "../../../lib/api";
import { PetSprite } from "../PetSprite";
import { PetMenu } from "../PetMenu";
import { sagiPrefs } from "../prefs";

describe("PetSprite", () => {
  beforeEach(() => vi.useFakeTimers());
  afterEach(() => vi.useRealTimers());

  it("plays the row of the mood and steps through its frames", () => {
    const { rerender } = render(
      <PetSprite
        id="cp-goku"
        kind="codex"
        mood="thinking"
        size={104}
        reducedMotion={false}
        onBroken={() => {}}
      />
    );
    const sprite = screen.getByTestId("pet-sprite");
    // 104 px tall = half a 208 px cell: row 7 (running) starts 7 × 104 px down.
    expect(sprite.dataset.row).toBe("7");
    expect(sprite.style.backgroundPosition).toBe("0px -728px");
    act(() => vi.advanceTimersByTime(130));
    expect(sprite.style.backgroundPosition).toBe("-96px -728px");
    rerender(
      <PetSprite
        id="cp-goku"
        kind="codex"
        mood="worried"
        size={104}
        reducedMotion={false}
        onBroken={() => {}}
      />
    );
    expect(screen.getByTestId("pet-sprite").dataset.row).toBe("5");
  });

  it("holds the first frame under reduced motion", () => {
    render(
      <PetSprite
        id="cp-goku"
        kind="codex"
        mood="idle"
        size={208}
        reducedMotion
        onBroken={() => {}}
      />
    );
    act(() => vi.advanceTimersByTime(1000));
    expect(screen.getByTestId("pet-sprite").style.backgroundPosition).toBe("0px 0px");
  });

  it("shows an uploaded image still, and reports one that will not load", () => {
    const broken = vi.fn();
    const { container } = render(
      <PetSprite
        id="p-aaaaaaaaaaaa"
        kind="image"
        mood="idle"
        size={80}
        reducedMotion={false}
        onBroken={broken}
      />
    );
    const img = container.querySelector("img") as HTMLImageElement;
    expect(img.getAttribute("src")).toBe("/api/pets/p-aaaaaaaaaaaa/sprite");
    fireEvent.error(img);
    expect(broken).toHaveBeenCalled();
  });
});

describe("PetMenu", () => {
  beforeEach(() => {
    localStorage.clear();
    vi.clearAllMocks();
  });
  const renderMenu = () =>
    render(<PetMenu pet={sagiPrefs.getPet()} size={68} onClose={() => {}} onSettings={() => {}} />);

  it("hides the mascot and sizes it", () => {
    renderMenu();
    fireEvent.change(screen.getByTestId("pet-size"), { target: { value: "250" } });
    expect(sagiPrefs.getSize()).toBe(250);
    fireEvent.click(screen.getByText("Hide pet"));
    expect(sagiPrefs.getEnabled()).toBe(false);
  });

  it("downloads a featured pet on its first pick, then wears it", async () => {
    renderMenu();
    fireEvent.click(screen.getByTestId("pet-choose"));
    fireEvent.click(await screen.findByTestId("pet-featured-goku"));
    await waitFor(() => expect(sagiPrefs.getPet()).toEqual({ id: "cp-goku", kind: "codex" }));
    expect(api.pets.installFeatured).toHaveBeenCalledWith("goku");
  });

  it("deleting the pet being worn puts Sagi back", async () => {
    sagiPrefs.setPet({ id: "p-aaaaaaaaaaaa", kind: "image" });
    renderMenu();
    fireEvent.click(screen.getByTestId("pet-choose"));
    fireEvent.click(await screen.findByTestId("pet-delete-p-aaaaaaaaaaaa"));
    await waitFor(() => expect(sagiPrefs.getPet()).toEqual({ id: "sagi" }));
    expect(api.pets.remove).toHaveBeenCalledWith("p-aaaaaaaaaaaa");
  });

  it("uploads an image and wears it", async () => {
    renderMenu();
    const file = new File([new Uint8Array([0x89, 0x50, 0x4e, 0x47])], "Dog.png", {
      type: "image/png",
    });
    fireEvent.change(screen.getByTestId("pet-image-input"), { target: { files: [file] } });
    await waitFor(() =>
      expect(sagiPrefs.getPet()).toEqual({ id: "p-bbbbbbbbbbbb", kind: "image" })
    );
    expect(api.pets.upload).toHaveBeenCalledWith(file);
  });
});