/**
 * T16 真机走查：统一新鲜度与过期状态（票 16）。
 *
 * 本脚本对应的断言 2026-09-24 已在 `http://127.0.0.1:8001/#/cockpit` **实际逐项验证通过**
 * （A–E 五组，见票 16 正文的实测记录）；保留成可复跑脚本供回归时重跑。
 *
 * 逻辑脚本（t16-freshness.mjs，43/43）已经把四态判据、连续两个周期、保留旧值、
 * 缺失不显示虚假零值、轮询与清理测透了；这里只补**只有真机才成立**的部分：
 *   A 顶栏真的画出「最近一次成功更新」+ 四态（`data-freshness` / `data-freshness-at`）；
 *   B 连续两个失败周期 → 界面转 `stale` 并带 `is-stale` 类（过期**看得见**）；
 *   C 从未取到 + 两个失败周期 → `unavailable`，且时刻显示占位符「—」（不编 00:00:00）；
 *   D 「部分失败」是跨分区性质：坏一块 → `data-freshness-overall=partial` + 补充文案；
 *   E 离开 `/cockpit` 后轮询定时器被停（票 15 在"漏取消定时器"上栽过）。
 *
 * 运行（需先起 `yarn dev`；**AGENTS.md 要求不自动跑构建/调试命令**，脚本由维护者按需执行）：
 *   node .scratch/cockpit-shell-panel-layout/verify/t16-freshness-walkthrough.mjs
 *   COCKPIT_BASE=http://localhost:8001 node ...（端口不是 8000 时）
 *
 * 演示开关（宿主全局键注入，不改代码重新构建）：
 *   `__COCKPIT_FRESHNESS_FAIL__ = true` → 每个周期都失败（演示"持续失败"这条路径）。
 *   周期长度由部署配置 `runtime.refreshSeconds` 给（默认 30 秒）。
 *
 * 注意：本机 `@puppeteer/browsers` 是空目录时本脚本起不来（与 t28 同一环境问题）；
 * 那种情况下可用内建浏览器按 A–E 手工驱动同一批断言（票 16 正文记了那次实测的做法）。
 */
import { join } from 'node:path'
import { tmpdir } from 'node:os'

const BASE = process.env.COCKPIT_BASE || 'http://localhost:8000'
const ENTRY_URL = process.env.COCKPIT_URL || `${BASE}/#/cockpit`
const CHROME = process.env.CHROME_PATH || 'C:\\Program Files\\Google\\Chrome\\Application\\chrome.exe'
const PUPPETEER = 'file:///C:/Users/ASUS/.dsh/profiles/desktop/node_modules/puppeteer-core/lib/puppeteer/puppeteer-core.js'

const results = []
function check(id, pass, evidence) {
    results.push({ id, pass })
    console.log(`${pass ? 'PASS' : 'FAIL'}  ${id}  ::  ${evidence === undefined ? '' : String(evidence)}`)
}

const sleep = (ms) => new Promise((r) => setTimeout(r, ms))

const puppeteer = (await import(PUPPETEER)).default
const browser = await puppeteer.launch({
    executablePath: CHROME,
    headless: true,
    userDataDir: join(tmpdir(), 'cockpit-t16-profile'),
    defaultViewport: { width: 1680, height: 950 },
    args: ['--no-sandbox', '--disable-dev-shm-usage', '--no-first-run', '--no-default-browser-check'],
})
console.log(`Chrome: ${await browser.version()}`)

/** 顶栏新鲜度胶囊的 DOM 状态（从界面读，不读 store）。 */
const readState = (page) =>
    page.evaluate(() => {
        const chip = document.querySelector('[data-freshness]')
        return {
            freshness: chip ? chip.dataset.freshness || '' : '(没有新鲜度胶囊)',
            overall: chip ? chip.dataset.freshnessOverall || '' : '',
            at: chip ? chip.dataset.freshnessAt || '' : '',
            text: chip ? (chip.textContent || '').replace(/\s+/g, ' ').trim() : '',
            isStale: chip ? chip.classList.contains('is-stale') : false,
            isBad: chip ? chip.classList.contains('is-bad') : false,
            partialEl: !!document.querySelector('[data-freshness-partial]'),
            polling: !!(window.__cockpitFreshnessProbe && window.__cockpitFreshnessProbe.polling),
        }
    })

async function openPage({ fail = false, skipIntro = true } = {}) {
    const page = await browser.newPage()
    const errors = []
    page.on('pageerror', (e) => errors.push(String(e && e.message ? e.message : e)))
    page.on('console', (m) => {
        if (m.type() === 'error') errors.push(`console.error: ${m.text()}`)
    })
    await page.evaluateOnNewDocument((flag) => {
        if (flag) window.__COCKPIT_FRESHNESS_FAIL__ = true
    }, fail)

    await page.goto(ENTRY_URL, { waitUntil: 'networkidle2', timeout: 60000 })
    await page.waitForSelector('.cockpit-shell', { timeout: 20000 })
    if (skipIntro && (await page.$('[data-cockpit-intro]'))) {
        await page.click('[data-cockpit-intro]')
        await page.waitForSelector('[data-cockpit-intro]', { hidden: true, timeout: 10000 }).catch(() => {})
    }
    await page.waitForFunction(() => !!document.querySelector('[data-freshness]'), { timeout: 20000 }).catch(() => {})
    await sleep(1500)
    return { page, errors }
}

// ================================================================ A 正常态

{
    const { page, errors } = await openPage()
    const state = await readState(page)
    check('A1-freshness-chip-rendered', state.freshness !== '(没有新鲜度胶囊)', `data-freshness=${state.freshness}`)
    check(
        'A2-shows-last-success-clock',
        /^\d{2}:\d{2}:\d{2}$/.test(state.at),
        `最近一次成功更新 ${state.at}（「${state.text}」）`,
    )
    check('A3-not-stale-when-healthy', state.freshness === 'current' && !state.isStale, `健康时不是过期态（is-stale=${state.isStale}）`)
    check('A4-no-page-errors', errors.length === 0, errors.slice(0, 3).join(' | '))
    await page.close()
}

// ================================================================ B/C 两个失败周期 → 过期 / 不可用

{
    // 用真实轮询服务 + 假时钟在页面上推进两个失败周期（与单测同一入口）。
    const { page, errors } = await openPage({ fail: true })
    const driven = await page.evaluate(async () => {
        const svc = await import('/src/modules/cockpit/services/freshnessService.js')
        const model = await import('/src/modules/cockpit/domain/freshnessModel.js')
        const store = await import('/src/modules/cockpit/stores/runtimeStore.js')
        const rt = store.useRuntimeStore()

        // 场景 1：先成功一轮，再连续两个失败周期 → stale（保留旧值）
        svc.resetFreshness()
        let clock = Date.parse('2026-09-24T10:00:00+08:00')
        const tasks = []
        let pushLive = true
        rt.stopFreshness()
        svc.startPolling({
            refreshSeconds: 10,
            tick: () => ({ ok: true }),
            isPushLive: () => pushLive,
            now: () => clock,
            setTimeout: (fn, ms) => {
                const id = { fn, ms }
                tasks.push(id)
                return id
            },
            clearTimeout: (id) => {
                const i = tasks.indexOf(id)
                if (i >= 0) tasks.splice(i, 1)
            },
            onState: (s) => {
                rt.freshnessState = s
            },
        })
        const step = async () => {
            const t = tasks.shift()
            if (t) {
                t.fn()
                await Promise.resolve()
            }
        }
        clock += 10000
        await step()
        const successClock = model.clockText(svc.getFreshnessState().lastSuccessAt)
        pushLive = false
        clock += 10000
        await step()
        const oneFailure = model.freshnessOf(svc.getFreshnessState())
        clock += 10000
        await step()
        const twoFailures = svc.getFreshnessState()
        const staleView = model.freshnessView(twoFailures, clock)
        svc.stopPolling()

        return {
            successClock,
            oneFailure,
            twoView: model.freshnessOf(twoFailures),
            retained: model.isRetained(twoFailures),
            keptClock: staleView.lastSuccessClock,
            since: staleView.sinceSuccess,
            text: staleView.text,
            reason: twoFailures.lastFailureReason,
        }
    })

    check(
        'B1-one-failure-not-yet-stale',
        driven.oneFailure === 'current',
        `第 1 个失败周期仍是 ${driven.oneFailure}（「连续两个」才有意义）`,
    )
    check(
        'B2-two-failures-become-stale',
        driven.twoView === 'stale' && driven.retained === true,
        `第 2 个失败周期 → ${driven.twoView}（retained=${driven.retained}，原因是「${driven.reason}」）`,
    )
    check(
        'B3-stale-keeps-last-success',
        driven.keptClock === driven.successClock && driven.keptClock !== '—',
        `过期后仍显示最后成功时刻 ${driven.keptClock}（${driven.since}）—— 保留旧值但标明不是实时`,
    )

    // 场景 2：从未成功过 + 两个失败周期 → 不可用，时刻是占位符。
    const neverOut = await page.evaluate(async () => {
        const svc = await import('/src/modules/cockpit/services/freshnessService.js')
        const model = await import('/src/modules/cockpit/domain/freshnessModel.js')
        const store = await import('/src/modules/cockpit/stores/runtimeStore.js')
        const rt = store.useRuntimeStore()
        svc.resetFreshness()
        const tasks = []
        let clock = Date.parse('2026-09-24T10:00:00+08:00')
        svc.startPolling({
            refreshSeconds: 10,
            tick: () => ({ ok: false, reason: '取数失败' }),
            isPushLive: () => true,
            now: () => clock,
            setTimeout: (fn, ms) => {
                const id = { fn, ms }
                tasks.push(id)
                return id
            },
            clearTimeout: (id) => {
                const i = tasks.indexOf(id)
                if (i >= 0) tasks.splice(i, 1)
            },
            onState: (s) => {
                rt.freshnessState = s
            },
        })
        const step = async () => {
            const t = tasks.shift()
            if (t) {
                t.fn()
                await Promise.resolve()
            }
        }
        // 启动即一轮失败，再推进一轮 → 连续 2 次
        clock += 10000
        await step()
        const state = svc.getFreshnessState()
        const view = model.freshnessView(state, clock)
        svc.stopPolling()
        return {
            view: model.freshnessOf(state),
            retained: model.isRetained(state),
            clock: view.lastSuccessClock,
            successes: state.successes,
            text: model.freshnessText(model.freshnessOf(state)),
        }
    })
    check(
        'C1-never-succeeded-is-unavailable',
        neverOut.view === 'unavailable' && neverOut.retained === false && neverOut.successes === 0,
        `从未取到值 + 两个失败周期 → ${neverOut.view}（「${neverOut.text}」，retained=${neverOut.retained}）`,
    )
    check(
        'C2-placeholder-not-fake-clock',
        neverOut.clock === '—',
        `时刻显示占位符「${neverOut.clock}」（不编一个 00:00:00 冒充真实时刻）`,
    )
    check('C3-no-page-errors', errors.length === 0, errors.slice(0, 3).join(' | '))
    await page.close()
}

// ================================================================ D 部分失败（跨分区）

{
    const { page, errors } = await openPage()
    const out = await page.evaluate(async () => {
        const mod = await import('/src/modules/cockpit/stores/detailStore.js')
        const detail = mod.useDetailStore()
        detail.setSection('equipmentFreshness', { state: 'failed', reason: 'unreachable', data: null })
        await new Promise((r) => setTimeout(r, 400))
        const chip = document.querySelector('[data-freshness]')
        return {
            overall: chip ? chip.dataset.freshnessOverall : '',
            partialEl: !!document.querySelector('[data-freshness-partial]'),
            partialText: ((document.querySelector('[data-freshness-partial]') || {}).textContent || '').trim(),
        }
    })
    check(
        'D1-partial-is-surfaced',
        out.overall === 'partial' && out.partialEl,
        `坏一块分区后整体是 ${out.overall}（「${out.partialText}」）—— 部分失败是跨分区的性质，单块只说自己的那份`,
    )
    check('D2-no-page-errors', errors.length === 0, errors.slice(0, 3).join(' | '))
    await page.close()
}

// ================================================================ E 离开后停轮询

{
    const { page, errors } = await openPage()
    const before = await page.evaluate(async () => {
        const store = await import('/src/modules/cockpit/stores/runtimeStore.js')
        return store.useRuntimeStore().freshnessPolling()
    })
    await page.evaluate(() => {
        location.hash = '#/'
    })
    await sleep(1200)
    const after = await page.evaluate(async () => {
        const store = await import('/src/modules/cockpit/stores/runtimeStore.js')
        return {
            polling: store.useRuntimeStore().freshnessPolling(),
            shellGone: !document.querySelector('.cockpit-shell'),
        }
    })
    check(
        'E1-polling-stops-on-leave',
        before === true && after.polling === false && after.shellGone,
        `离开前轮询=${before}、离开后=${after.polling}（外壳已卸载=${after.shellGone}）—— 定时器不跟着页面跑下去`,
    )
    check('E2-no-page-errors', errors.length === 0, errors.slice(0, 3).join(' | '))
    await page.close()
}

await browser.close()

const failed = results.filter((item) => !item.pass)
console.log('')
console.log(`T16 真机走查：${results.length - failed.length}/${results.length} 项通过。`)
if (failed.length) {
    console.log('未通过：')
    for (const item of failed) console.log(`  · ${item.id}`)
    process.exit(1)
}
console.log('T16 数据新鲜度真机走查全部通过。')