import './wb-legacy-disabled.mjs'

/**
 * 导出真实 WorkBuddy 某个子树的结构与样式（CDP）。
 *
 * 用法：node scripts/wb-tree.mjs <port> <rootSelector> [maxNodes]
 * 例：  node scripts/wb-tree.mjs 9223 .conversation-sidebar 200
 */

import { writeFile, mkdir } from 'node:fs/promises'
import { join } from 'node:path'

const port = Number(process.argv[2] ?? 9223)
const rootSelector = process.argv[3] ?? '.conversation-sidebar'
const maxNodes = Number(process.argv[4] ?? 200)
const outDir = process.argv[5] ?? null

const PROPS = [
  'display',
  'flex-direction',
  'align-items',
  'justify-content',
  'width',
  'min-width',
  'max-width',
  'height',
  'min-height',
  'padding-top',
  'padding-right',
  'padding-bottom',
  'padding-left',
  'margin-top',
  'margin-bottom',
  'gap',
  'background-color',
  'color',
  'border-top-width',
  'border-top-color',
  'border-radius',
  'box-shadow',
  'font-size',
  'font-weight',
  'line-height',
  'letter-spacing',
  'text-transform',
  'opacity',
  'overflow-y',
  'position'
]

async function main() {
  const list = await (await fetch(`http://127.0.0.1:${port}/json/list`)).json()
  const page = list.filter((t) => t.type === 'page' && !/windowKind=/.test(t.url))[0]
  if (!page) {
    console.error('未找到主页面目标')
    process.exit(1)
  }

  const ws = new WebSocket(page.webSocketDebuggerUrl)
  await new Promise((resolve, reject) => {
    const timer = setTimeout(() => reject(new Error('连接超时')), 10000)
    ws.addEventListener('open', () => {
      clearTimeout(timer)
      resolve()
    })
    ws.addEventListener('error', () => {
      clearTimeout(timer)
      reject(new Error('连接失败'))
    })
  })

  const send = (method, params = {}) =>
    new Promise((resolve, reject) => {
      const id = Math.floor(Math.random() * 1e9)
      const timer = setTimeout(() => reject(new Error(`超时 ${method}`)), 20000)
      const handler = (ev) => {
        const msg = JSON.parse(ev.data)
        if (msg.id === id) {
          clearTimeout(timer)
          ws.removeEventListener('message', handler)
          resolve(msg.result)
        }
      }
      ws.addEventListener('message', handler)
      ws.send(JSON.stringify({ id, method, params }))
    })

  const expression = `(() => {
    const ROOT = ${JSON.stringify(rootSelector)};
    const PROPS = ${JSON.stringify(PROPS)};
    const MAX = ${maxNodes};
    const clean = (v) => (v == null ? '' : String(v).replace(/\\s+/g, ' ').trim());
    const root = document.querySelector(ROOT);
    if (!root) return JSON.stringify({ error: 'selector not found: ' + ROOT });
    const rows = [];
    const walk = (el, depth) => {
      if (rows.length >= MAX) return;
      const cs = getComputedStyle(el);
      const r = el.getBoundingClientRect();
      if (r.width < 1 || r.height < 1) return;
      const st = {};
      for (const p of PROPS) {
        const v = clean(cs.getPropertyValue(p));
        if (v && v !== 'normal' && v !== 'auto' && v !== 'none' && v !== '0px' && v !== 'rgba(0, 0, 0, 0)') st[p] = v;
      }
      rows.push({
        depth,
        tag: el.tagName.toLowerCase(),
        cls: clean(el.className).slice(0, 120),
        text: clean(el.childElementCount === 0 ? el.textContent : '').slice(0, 70),
        rect: { x: Math.round(r.x), y: Math.round(r.y), w: Math.round(r.width), h: Math.round(r.height) },
        styles: st
      });
      for (const c of el.children) walk(c, depth + 1);
    };
    walk(root, 0);
    return JSON.stringify({ selector: ROOT, viewport: { w: innerWidth, h: innerHeight }, rows });
  })()`

  const res = await send('Runtime.evaluate', { expression, returnByValue: true })
  const data = JSON.parse(res.result.value)
  if (data.error) {
    console.error(data.error)
    process.exit(1)
  }

  console.log(`root=${data.selector} viewport=${data.viewport.w}x${data.viewport.h} nodes=${data.rows.length}`)
  const lines = []
  for (const row of data.rows) {
    const indent = '  '.repeat(row.depth)
    const cls = row.cls ? '.' + row.cls.split(/\s+/).slice(0, 2).join('.') : ''
    const txt = row.text ? ` "${row.text}"` : ''
    lines.push(`${indent}${row.tag}${cls}  [${row.rect.x},${row.rect.y} ${row.rect.w}x${row.rect.h}]${txt}`)
    const keys = Object.keys(row.styles)
    if (keys.length) {
      lines.push(`${indent}    ${JSON.stringify(row.styles)}`)
    }
  }
  const text = lines.join('\n')
  console.log(text.slice(0, 12000))

  if (outDir) {
    await mkdir(outDir, { recursive: true })
    await writeFile(join(outDir, 'tree.json'), JSON.stringify(data, null, 2), 'utf8')
    console.log(`\n已写出 ${join(outDir, 'tree.json')}`)
  }
  ws.close()
}

main().catch((err) => {
  console.error('失败：', err.message)
  process.exit(1)
})