import { expect, test, type Page } from "@playwright/test";
import JSZip from "jszip";
import { clickXmindAction } from "./editor-actions";

async function openMap(page: Page) {
  await page.goto("/dev/flow-board-preview", { waitUntil: "commit" });
  const zip = new JSZip();
  zip.file("content.json", JSON.stringify([{ title: "框选验证", rootTopic: {
    id: "root", title: "项目", children: { attached: [
      { id: "first", title: "产品" }, { id: "second", title: "设计" },
      { id: "third", title: "开发" }, { id: "fourth", title: "上线" },
    ] },
  } }]));
  await page.locator("input[accept*=xmind]").setInputFiles({
    name: "selection.xmind", mimeType: "application/octet-stream",
    buffer: await zip.generateAsync({ type: "nodebuffer" }),
  });
  await expect(page.locator(".drawnix").getByText("产品", { exact: true })).toBeVisible();
  await page.evaluate(() => document.fonts.ready);
}

async function marqueeBranches(page: Page) {
  const canvas = page.locator(".drawnix");
  const first = await canvas.getByText("产品", { exact: true }).boundingBox();
  const second = await canvas.getByText("设计", { exact: true }).boundingBox();
  if (!first || !second) throw new Error("Missing branch geometry");
  const start = { x: Math.min(first.x, second.x) - 35, y: Math.min(first.y, second.y) - 25 };
  const end = { x: Math.max(first.x + first.width, second.x + second.width) + 35, y: Math.max(first.y + first.height, second.y + second.height) + 25 };
  await page.mouse.move(start.x, start.y);
  await page.mouse.down();
  await page.mouse.move(end.x, end.y, { steps: 20 });
  const overlay = canvas.locator(".board-active-svg");
  await expect(overlay).toHaveCSS("position", "absolute");
  await expect(overlay).toHaveCSS("pointer-events", "none");
  const frame = overlay.locator('.active-host-g > g > path[stroke="#6698FF"]');
  await expect(frame).toHaveCount(1);
  await expect(frame).toHaveCSS("stroke", "rgb(56, 124, 255)");
  await expect(frame).toHaveCSS("stroke-width", "2px");
  await expect.poll(async () => {
    const box = await frame.boundingBox();
    if (!box) return Number.POSITIVE_INFINITY;
    // SVG paint bounds may include the selection outline's padding.
    return Math.max(Math.abs(box.x - start.x), Math.abs(box.y - start.y),
      Math.abs(box.x + box.width - end.x), Math.abs(box.y + box.height - end.y));
  }).toBeLessThanOrEqual(5);
  const fill = overlay.locator('.active-host-g > g > path[fill="#6698FF25"]');
  await expect(fill).toHaveCSS("fill", "rgba(56, 124, 255, 0.12)");
  await page.mouse.up();
  await expect(page.locator(".xmind-topic-count")).toHaveText("主题: 2 / 5");
  await expect(fill).toHaveCount(0);
  await expect(overlay.locator('.selection-rectangle')).not.toHaveCount(0);
}

test("blank-canvas marquee selects two branches and batch deletion can be undone", async ({ page }) => {
  await openMap(page);
  await expect(page.getByRole("button", { name: "选择工具", exact: true })).toHaveAttribute("aria-pressed", "true");
  await marqueeBranches(page);
  await page.keyboard.press("Backspace");
  const canvas = page.locator(".drawnix");
  await expect(canvas.getByText("产品", { exact: true })).toHaveCount(0);
  await expect(canvas.getByText("设计", { exact: true })).toHaveCount(0);
  await expect(canvas.getByText("开发", { exact: true })).toBeVisible();
  await clickXmindAction(page, "撤销");
  await expect(canvas.getByText("产品", { exact: true })).toBeVisible();
  await expect(canvas.getByText("设计", { exact: true })).toBeVisible();
});

test("panning and selection shortcuts stay in sync and do not consume text input", async ({ page }) => {
  await openMap(page);
  const select = page.getByRole("button", { name: "选择工具", exact: true });
  const pan = page.getByRole("button", { name: "拖动画布", exact: true });
  await page.keyboard.press("h");
  await expect(pan).toHaveAttribute("aria-pressed", "true");
  const topic = page.locator(".drawnix").getByText("产品", { exact: true });
  const before = await topic.boundingBox();
  await page.mouse.move(160, 200);
  await page.mouse.down();
  await page.mouse.move(210, 240, { steps: 12 });
  await page.mouse.up();
  await expect.poll(async () => (await topic.boundingBox())?.x).not.toBe(before?.x);
  await page.keyboard.press("v");
  await expect(select).toHaveAttribute("aria-pressed", "true");
  await marqueeBranches(page);
  await pan.click();
  await expect(pan).toHaveAttribute("aria-pressed", "true");
  await select.click();
  await marqueeBranches(page);
  const title = page.getByLabel("白板标题", { exact: true });
  await title.fill("");
  await title.pressSequentially("hv");
  await expect(title).toHaveValue("hv");
  await expect(select).toHaveAttribute("aria-pressed", "true");
  await page.getByRole("button", { name: "新增画布", exact: true }).click();
  await expect(select).toHaveAttribute("aria-pressed", "true");
});