import { chromium } from 'playwright'
import fs from 'node:fs/promises'
import path from 'node:path'
import process from 'node:process'

const baseUrl = 'http://127.0.0.1:5173'
const chromePath = 'C:\\Program Files\\Google\\Chrome\\Application\\chrome.exe'
const rootDir = process.cwd()
const runtimeDir = path.join(rootDir, '.tmp', 'manual-four-players', String(Date.now()))

const players = [
  { username: 'pwtest04', loginId: '13812345681', password: 'play123', owner: true },
  { username: 'pwtest01', loginId: '13812345678', password: 'play123', owner: false },
  { username: 'pwtest02', loginId: '13812345679', password: 'play123', owner: false },
  { username: 'pwtest03', loginId: '13812345680', password: 'play123', owner: false },
]

function log(message) {
  console.log(`[setup] ${message}`)
}

async function launchPlayer(player) {
  const profileDir = path.join(runtimeDir, player.username)
  await fs.mkdir(profileDir, { recursive: true })
  log(`launch browser for ${player.username}`)

  const context = await chromium.launchPersistentContext(profileDir, {
    headless: false,
    executablePath: chromePath,
    args: ['--no-first-run', '--no-default-browser-check'],
    viewport: { width: 1400, height: 960 },
  })

  let page = context.pages()[0]
  if (!page) {
    page = await context.newPage()
  }
  await page.goto(`${baseUrl}/login`, { waitUntil: 'domcontentloaded' })
  return { ...player, context, page, profileDir }
}

async function login(page, player) {
  log(`login ${player.username}`)
  await page.goto(`${baseUrl}/login`, { waitUntil: 'domcontentloaded' })
  await page.getByRole('textbox', { name: '登录ID' }).fill(player.loginId)
  await page.getByRole('textbox', { name: '密码' }).fill(player.password)
  const submitButton = page.locator('form').getByRole('button', { name: '登录' })
  await Promise.all([
    page.waitForURL('**/hall', { timeout: 15000 }),
    submitButton.click(),
  ])
  await page.getByRole('heading', { name: '麻将游戏大厅' }).waitFor({ timeout: 15000 })
  log(`logged in ${player.username}`)
}

async function createRoom(page) {
  const roomName = `manual-${Date.now()}`
  log(`create room ${roomName}`)
  await page.getByRole('button', { name: '创建房间' }).click()
  await page.getByRole('textbox', { name: '房间名' }).fill(roomName)
  await page.getByRole('button', { name: '创建', exact: true }).click()
  const roomText = await page.getByText(/房间ID：/).textContent()
  const roomId = roomText?.replace('房间ID：', '').trim()
  if (!roomId) {
    throw new Error('Failed to read room id')
  }
  await Promise.all([
    page.waitForURL(`**/game/chengdu/${roomId}*`, { timeout: 15000 }),
    page.getByRole('button', { name: '进入房间' }).click(),
  ])
  log(`owner entered room ${roomId}`)
  return { roomId, roomName }
}

async function joinRoom(page, roomId, username) {
  log(`join room ${roomId} as ${username}`)
  await page.goto(`${baseUrl}/hall`, { waitUntil: 'domcontentloaded' })
  await page.getByRole('textbox', { name: '输入 room_id' }).fill(roomId)
  await Promise.all([
    page.waitForURL(`**/game/chengdu/${roomId}*`, { timeout: 15000 }),
    page.getByRole('button', { name: '加入' }).click(),
  ])
  log(`joined room ${roomId} as ${username}`)
}

async function snapshotPage(session) {
  const bodyText = ((await session.page.locator('body').textContent()) ?? '').replace(/\s+/g, ' ').trim()
  return {
    username: session.username,
    loginId: session.loginId,
    url: session.page.url(),
    started: bodyText.includes('对局中') || bodyText.includes('牌局进行中'),
    bodyPreview: bodyText.slice(0, 240),
  }
}

async function main() {
  await fs.mkdir(runtimeDir, { recursive: true })
  log(`runtimeDir ${runtimeDir}`)

  const sessions = []
  for (const player of players) {
    sessions.push(await launchPlayer(player))
  }

  try {
    for (const session of sessions) {
      await login(session.page, session)
    }

    const owner = sessions.find((session) => session.owner)
    if (!owner) {
      throw new Error('Owner session missing')
    }

    const { roomId } = await createRoom(owner.page)
    log(`room ready ${roomId}`)

    for (const session of sessions) {
      if (!session.owner) {
        await joinRoom(session.page, roomId, session.username)
      }
    }

    await new Promise((resolve) => setTimeout(resolve, 8000))

    const playersSnapshot = []
    for (const session of sessions) {
      await session.page.bringToFront()
      await new Promise((resolve) => setTimeout(resolve, 2000))
      let snapshot = await snapshotPage(session)
      if (!snapshot.started) {
        log(`focus retry for ${session.username}`)
        await session.page.bringToFront()
        await new Promise((resolve) => setTimeout(resolve, 3000))
        snapshot = await snapshotPage(session)
      }
      playersSnapshot.push(snapshot)
    }

    console.log(JSON.stringify({
      roomId,
      roomUrl: `${baseUrl}/game/chengdu/${roomId}`,
      players: playersSnapshot,
    }, null, 2))

    if (process.env.KEEP_ALIVE === '1') {
      log('setup finished; keeping browsers alive for manual testing')
      await new Promise(() => {})
    }

    for (const session of sessions) {
      await session.context.close()
    }
  } catch (error) {
    console.error(error)
    if (process.env.KEEP_ALIVE !== '1') {
      for (const session of sessions) {
        try {
          await session.context.close()
        } catch {}
      }
    }
    throw error
  }
}

await main()