import { test, expect } from '@playwright/test';
import { _electron as electron } from 'playwright';
import { promises as fs } from 'node:fs';
import nodePath from 'node:path';
import os from 'node:os';

const MAIN_JS = nodePath.join(process.cwd(), 'dist-electron/main/index.js');

async function launch(userData: string) {
  const app = await electron.launch({ args: ['--user-data-dir=' + userData, MAIN_JS] });
  const page = await app.firstWindow();
  await page.waitForLoadState('domcontentloaded');
  const invoke = (ch: string, args: any) => page.evaluate(({ ch, args }) => (globalThis as any).dsh.invoke(ch, args), { ch, args });
  return { app, page, invoke };
}

async function newDoc(a: { page: any; invoke: any }, title: string) {
  await a.page.getByRole('button', { name: /新建文档/ }).click();
  await a.page.getByPlaceholder(/输入文档标题/).fill(title);
  await a.page.getByPlaceholder(/输入文档标题/).press('Enter');
  await expect(a.page.getByTestId('tabbar').getByText(title, { exact: true })).toBeVisible({ timeout: 10000 });
}

// FR-E7：Alt+↑/↓ 上移/下移当前顶层块
test('FR-E7：Alt+↑/↓ 上移/下移当前块', async () => {
  const tmp = await fs.mkdtemp(nodePath.join(os.tmpdir(), 'hn-e7-'));
  const userData = nodePath.join(tmp, 'userdata');
  const vault = nodePath.join(tmp, 'vault');
  await fs.mkdir(userData, { recursive: true });
  await fs.mkdir(vault, { recursive: true });

  const a = await launch(userData);
  await a.invoke('vault:switch', { root: vault });
  await newDoc(a, '块操作');

  const editor = a.page.locator('.ProseMirror');
  await editor.click();
  await a.page.keyboard.type('first');
  await a.page.keyboard.press('Enter');
  await a.page.keyboard.type('second');

  // 光标在第二段 'second' -> Alt+↑ 上移 -> 顺序变 second, first
  await a.page.keyboard.press('Alt+ArrowUp');
  let p0 = (await a.page.locator('.ProseMirror p').nth(0).textContent() ?? '').trim();
  let p1 = (await a.page.locator('.ProseMirror p').nth(1).textContent() ?? '').trim();
  expect(p0).toBe('second');
  expect(p1).toBe('first');

  // Alt+↓ 下移回去 -> first, second
  await a.page.keyboard.press('Alt+ArrowDown');
  p0 = (await a.page.locator('.ProseMirror p').nth(0).textContent() ?? '').trim();
  p1 = (await a.page.locator('.ProseMirror p').nth(1).textContent() ?? '').trim();
  expect(p0).toBe('first');
  expect(p1).toBe('second');

  await a.app.close();
});

// FR-E11：查找全命中高亮 + 替换 + 全部替换
test('FR-E11：查找高亮 + 替换 + 全部替换', async () => {
  const tmp = await fs.mkdtemp(nodePath.join(os.tmpdir(), 'hn-e11a-'));
  const userData = nodePath.join(tmp, 'userdata');
  const vault = nodePath.join(tmp, 'vault');
  await fs.mkdir(userData, { recursive: true });
  await fs.mkdir(vault, { recursive: true });

  const a = await launch(userData);
  await a.invoke('vault:switch', { root: vault });
  await newDoc(a, '查找替换');

  await a.page.locator('.ProseMirror').click();
  await a.page.keyboard.type('foo bar foo baz foo');

  await a.page.getByPlaceholder('查找').fill('foo');
  await a.page.getByRole('button', { name: '查找' }).click();
  await expect(a.page.locator('.ProseMirror .find-match')).toHaveCount(3, { timeout: 5000 });
  await expect(a.page.locator('.ProseMirror .find-match-active')).toHaveCount(1);

  await a.page.getByPlaceholder('替换').fill('Y');
  await a.page.getByRole('button', { name: '替换', exact: true }).click();
  await expect(a.page.locator('.ProseMirror .find-match')).toHaveCount(2, { timeout: 5000 });

  await a.page.getByPlaceholder('替换').fill('X');
  await a.page.getByRole('button', { name: '全部替换' }).click();
  await expect(a.page.locator('.ProseMirror .find-match')).toHaveCount(0, { timeout: 5000 });
  const body = await a.page.evaluate(() => document.querySelector('.ProseMirror')?.textContent ?? '');
  expect(body).not.toContain('foo');

  await a.app.close();
});

// FR-E11：整词 + 区分大小写选项
test('FR-E11：整词 + 区分大小写选项', async () => {
  const tmp = await fs.mkdtemp(nodePath.join(os.tmpdir(), 'hn-e11b-'));
  const userData = nodePath.join(tmp, 'userdata');
  const vault = nodePath.join(tmp, 'vault');
  await fs.mkdir(userData, { recursive: true });
  await fs.mkdir(vault, { recursive: true });

  const a = await launch(userData);
  await a.invoke('vault:switch', { root: vault });
  await newDoc(a, '查找选项');

  await a.page.locator('.ProseMirror').click();
  await a.page.keyboard.type('foo foobar foo');

  await a.page.getByPlaceholder('查找').fill('foo');
  await a.page.getByRole('button', { name: '查找' }).click();
  await expect(a.page.locator('.ProseMirror .find-match')).toHaveCount(3, { timeout: 5000 });

  // 整词 -> 排除 foobar -> 2
  await a.page.getByTestId('fr-word').check();
  await expect(a.page.locator('.ProseMirror .find-match')).toHaveCount(2, { timeout: 5000 });

  // 区分大小写 + 查 'Foo' -> 0
  await a.page.getByTestId('fr-case').check();
  await a.page.getByPlaceholder('查找').fill('Foo');
  await a.page.getByRole('button', { name: '查找' }).click();
  await expect(a.page.locator('.ProseMirror .find-match')).toHaveCount(0, { timeout: 5000 });

  await a.app.close();
});