import { expect, test } from "@playwright/test";
import path from "node:path";
import { fileURLToPath } from "node:url";

const HERE = path.dirname(fileURLToPath(import.meta.url));
const STUDIO = path.resolve(HERE, "../../app/public/tutorial/pbr/studio.blend");

test.use({ viewport: { width: 1600, height: 900 } });

async function openStudio(page: import("@playwright/test").Page): Promise<import("@playwright/test").Locator> {
  await page.goto("/?ui=web");
  await page.locator("main.blender-app").waitFor({ timeout: 120_000 });
  await page.locator('[data-testid="blend-file-input"]').setInputFiles(STUDIO);
  await expect.poll(async () => page.getByTestId("scene-stats").innerText(), { timeout: 120_000 }).toMatch(/Objects 6/);
  await page.waitForTimeout(1500);
  const canvas = page.locator(".viewport-area canvas.viewport-canvas").first();
  await canvas.waitFor({ timeout: 60_000 });
  await canvas.focus();
  await page.waitForTimeout(300);
  return canvas;
}

async function dragMiddle(page: import("@playwright/test").Page, canvas: import("@playwright/test").Locator): Promise<void> {
  const box = await canvas.boundingBox();
  if (!box) throw new Error("viewport has no box");
  await page.mouse.move(box.x + box.width / 2, box.y + box.height / 2);
  await page.mouse.down({ button: "middle" });
  await page.mouse.move(box.x + box.width / 2 + 50, box.y + box.height / 2 + 25, { steps: 10 });
  await page.mouse.up({ button: "middle" });
  await page.waitForTimeout(700);
}

test("Camera view aligns to the scene camera and restores the last view", async ({ page }) => {
  test.setTimeout(300_000);
  const canvas = await openStudio(page);
  await expect(page.locator("main.blender-app")).toHaveAttribute("data-project-snapshot-revision", /^[0-9]+$/);
  const before = {
    position: await canvas.getAttribute("data-camera-position"),
    yaw: await canvas.getAttribute("data-camera-yaw"),
    pitch: await canvas.getAttribute("data-camera-pitch"),
    revision: await page.locator("main.blender-app").getAttribute("data-project-snapshot-revision"),
  };
  await page.keyboard.press("Numpad0");
  await expect(canvas).toHaveAttribute("data-camera-view", "CAMERA", { timeout: 30_000 });
  await expect.poll(async () => canvas.getAttribute("data-camera-position"), { timeout: 30_000 }).toBe("7.2,-7.2,5.4");
  await expect(page.locator("main.blender-app")).toHaveAttribute("data-project-snapshot-revision", before.revision ?? "0");

  await dragMiddle(page, canvas);
  await expect(canvas).toHaveAttribute("data-camera-view", "CAMERA");
  await expect(page.locator("main.blender-app")).toHaveAttribute("data-project-snapshot-revision", before.revision ?? "0");

  const zoomBefore = await canvas.getAttribute("data-camera-zoom");
  await canvas.evaluate((element) => element.dispatchEvent(new WheelEvent("wheel", { bubbles: true, cancelable: true, deltaY: -120 })));
  await expect.poll(async () => canvas.getAttribute("data-camera-zoom"), { timeout: 10_000 }).not.toBe(zoomBefore);
  await expect(page.locator("main.blender-app")).toHaveAttribute("data-project-snapshot-revision", before.revision ?? "0");

  await page.keyboard.press("Numpad0");
  await expect(canvas).toHaveAttribute("data-camera-view", "USER", { timeout: 30_000 });
  await expect.poll(async () => canvas.getAttribute("data-camera-position"), { timeout: 30_000 }).toBe(before.position);
  await expect(canvas).toHaveAttribute("data-camera-yaw", before.yaw ?? "");
  await expect(canvas).toHaveAttribute("data-camera-pitch", before.pitch ?? "");
});

test("Camera to View writes the camera and Camera to View lock moves it", async ({ page }) => {
  test.setTimeout(300_000);
  const canvas = await openStudio(page);
  const before = Number(await page.locator("main.blender-app").getAttribute("data-project-snapshot-revision") ?? "0");
  await page.keyboard.press("Control+Alt+Numpad0");
  await expect.poll(async () => Number(await page.locator("main.blender-app").getAttribute("data-project-snapshot-revision") ?? "0"), { timeout: 60_000 }).toBeGreaterThan(before);
  await expect(canvas).toHaveAttribute("data-camera-view", "CAMERA", { timeout: 30_000 });
  await page.getByRole("button", { name: "锁定相机", exact: true }).evaluate((element) => (element as HTMLElement).click());
  await expect(canvas).toHaveAttribute("data-camera-locked", "true");
  const lockedRevision = Number(await page.locator("main.blender-app").getAttribute("data-project-snapshot-revision") ?? "0");
  await dragMiddle(page, canvas);
  await expect.poll(async () => Number(await page.locator("main.blender-app").getAttribute("data-project-snapshot-revision") ?? "0"), { timeout: 60_000 }).toBeGreaterThan(lockedRevision);
  await expect(canvas).toHaveAttribute("data-camera-view", "CAMERA");

  const otherCanvas = page.locator(".camera-view-area canvas.viewport-canvas").first();
  if (await otherCanvas.count()) await expect(otherCanvas).not.toHaveAttribute("data-camera-locked", "true");

  await page.reload();
  await page.locator("main.blender-app").waitFor({ timeout: 120_000 });
  const reloaded = page.locator(".viewport-area canvas.viewport-canvas").first();
  await reloaded.waitFor({ timeout: 60_000 });
  await expect.poll(async () => reloaded.getAttribute("data-camera-locked"), { timeout: 30_000 }).toBe("true");
});