import assert from 'node:assert/strict'
import test from 'node:test'
import { createApp, h, nextTick } from 'vue'
import { createPinia, setActivePinia } from 'pinia'
import PointDetailCard from '../../src/modules/cockpit/components/PointDetailCard.vue'
import VideoMonitorPanel from '../../src/modules/cockpit/components/VideoMonitorPanel.vue'
import { useDetailStore } from '../../src/modules/cockpit/stores/detailStore.js'
import { useVideoStore } from '../../src/modules/cockpit/stores/videoStore.js'

const code = 'CAM/01 空格'
const device = { deviceCode: code, deviceName: '现场摄像机A', typeCode: '20', bound: true,
    capabilities: { live: true, records: false, playback: false, playbackControl: false, ptz: false, ptzStopGuaranteed: false }, unavailableReason: null }
const envelope = (data, status = 200) => Response.json({ code: status, msg: status === 200 ? '操作成功' : '失败', data }, { status })
const aggregate = { deviceCode: code, aggregateState: 'READY',
    archive: { state: 'SUCCESS', data: { deviceCode: code, deviceName: '现场摄像机A', deviceType: '20' } },
    metrics: { state: 'EMPTY', data: null }, warnings: { state: 'EMPTY', data: [] }, alarms: { state: 'EMPTY', data: [] },
    workOrders: { state: 'EMPTY', data: null }, timelines: { state: 'EMPTY', data: null }, latestImage: { state: 'EMPTY', data: null } }
async function settle() { for (let i = 0; i < 4; i++) { await new Promise(setImmediate); await nextTick() } }

async function mountJourney(overrides = {}) {
    const requests = []
    const config = { dataSource: 'real', api: { baseUrl: 'http://fixture.invalid/api/cockpit/v1', token: 'must-not-send' } }
    const fetchImpl = async (url, options = {}) => {
        const path = new URL(url).pathname
        const body = options.body ? JSON.parse(options.body) : null
        requests.push({ url: new URL(url), path, options, body })
        assert.equal(options.headers?.Authorization, undefined)
        if (path.endsWith('/detail-aggregate')) return envelope(aggregate)
        if (path.endsWith('/collection-records')) return overrides.records?.() || envelope({ deviceCode: code, state: 'EMPTY', recordView: { columns: [], rows: [] } })
        if (path.endsWith('/video/device')) {
            assert.equal(new URL(url).searchParams.get('deviceCode'), code)
            return envelope(overrides.device || device)
        }
        if (path.endsWith('/video/live')) {
            assert.deepEqual(body, { deviceCode: code })
            return overrides.live?.() || envelope({ deviceCode: code, deviceName: device.deviceName,
                sessionId: 'session-a', sessionToken: 'owner-a', mode: 'LIVE', media: { native: true, url: 'https://media.invalid/live.mp4' } })
        }
        if (path.endsWith('/heartbeat')) return overrides.heartbeat?.() || envelope({ sessionId: 'session-a', status: 'ACTIVE' })
        if (path.endsWith('/stop')) return overrides.stop?.() || envelope({ sessionId: 'session-a', status: 'STOPPED' })
        throw new Error('Unexpected fixture request: ' + path)
    }
    const pinia = createPinia(); setActivePinia(pinia)
    const detail = useDetailStore(); detail.configure({ config, fetchImpl })
    const video = useVideoStore(); video.configure({ config, fetchImpl, ...(overrides.sessionOptions || {}) })
    await detail.openDevice(code)
    const host = document.createElement('main'); document.body.appendChild(host)
    const app = createApp({ render: () => h('div', [h(PointDetailCard), h(VideoMonitorPanel)]) })
    app.use(pinia).mount(host)
    await settle()
    return { host, requests, video, detail, async dispose() { app.unmount(); await video.close(); host.remove() } }
}

const livePayload = (media) => ({ deviceCode: code, deviceName: device.deviceName, sessionId: 'session-a', sessionToken: 'owner-a', mode: 'LIVE', media })
async function openMonitor(page) {
    page.host.querySelector('[data-equipment-tab="metrics"]').click(); await settle()
    page.host.querySelector('[data-video-open]').click(); await settle()
    return document.querySelector('[data-video-monitor]')
}
test('a successful HTTP envelope for another session cannot confirm cleanup of the current viewer', async () => {
    let wrong = true
    const page = await mountJourney({ stop: () => envelope({ sessionId: wrong ? 'someone-else' : 'session-a', status: 'STOPPED' }) })
    try {
        await openMonitor(page)
        document.querySelector('[aria-label="关闭监控"]').click(); await settle()
        assert.ok(page.host.querySelector('[data-video-entry]').textContent.includes('会话释放未确认'))
        assert.equal(page.host.querySelector('[data-video-open]').disabled, true)
    } finally { wrong = false; await page.dispose() }
})

class TestClock {
    now = 0; next = 1; jobs = new Map()
    setTimeout(fn, delay) { const id = this.next++; this.jobs.set(id, { fn, at: this.now + delay }); return id }
    clearTimeout(id) { this.jobs.delete(id) }
    setInterval(fn, delay) { const id = this.setTimeout(fn, delay); this.jobs.get(id).interval = delay; return id }
    clearInterval(id) { this.clearTimeout(id) }
    async advance(duration) {
        const end = this.now + duration
        while (true) {
            const due = Array.from(this.jobs).filter(([, job]) => job.at <= end).sort((a, b) => a[1].at - b[1].at)[0]
            if (!due) break
            const [id, job] = due; this.now = job.at
            if (job.interval) job.at += job.interval; else this.jobs.delete(id)
            job.fn(); await settle()
        }
        this.now = end; await settle()
    }
}

test('watching heartbeat preserves ownership but never establishes media readiness; failure releases the viewer', async () => {
    const clock = new TestClock(); let wrong = false
    const page = await mountJourney({ sessionOptions: { timers: clock }, heartbeat: () => envelope({ sessionId: wrong ? 'other' : 'session-a', status: 'ACTIVE' }) })
    try {
        const dialog = await openMonitor(page)
        dialog.querySelector('video').dispatchEvent(new Event('playing')); await settle()
        await clock.advance(30000)
        const beat = page.requests.find((request) => request.path.endsWith('/heartbeat'))
        assert.deepEqual(beat.body, { sessionToken: 'owner-a' })
        wrong = true
        await clock.advance(30000)
        assert.equal(dialog.querySelector('video'), null)
        assert.ok(dialog.textContent.includes('播放会话已断开'))
        assert.equal(page.requests.filter((request) => request.path.endsWith('/stop')).length, 1)
    } finally { await page.dispose() }
})

test('Escape closes the global modal and releases its viewing resource', async () => {
    const page = await mountJourney()
    try {
        await openMonitor(page)
        const key = new Event('keydown', { bubbles: true, cancelable: true }); key.key = 'Escape'
        document.dispatchEvent(key); await settle()
        assert.equal(document.querySelector('[data-video-monitor]'), null)
        assert.equal(page.requests.filter((request) => request.path.endsWith('/stop')).length, 1)
    } finally { await page.dispose() }
})

test('collection-record failure does not remove the latest-tab monitoring entry', async () => {
    const page = await mountJourney({ records: () => envelope({}, 503) })
    try {
        const dialog = await openMonitor(page)
        assert.ok(dialog.querySelector('video'))
        assert.ok(page.host.textContent.includes('其它分区不受影响'))
    } finally { await page.dispose() }
})

test('non-camera has no monitor button; unbound and unknown live capability stay disabled without starting', async () => {
    for (const camera of [
        { ...device, typeCode: '15', bound: false, capabilities: { live: false } },
        { ...device, bound: false, capabilities: { live: false }, unavailableReason: '尚未绑定视频' },
        { ...device, bound: true, capabilities: { live: false }, unavailableReason: '实时能力未确认' },
    ]) {
        const page = await mountJourney({ device: camera })
        try {
            page.host.querySelector('[data-equipment-tab="metrics"]').click(); await settle()
            const button = page.host.querySelector('[data-video-open]')
            if (camera.typeCode !== '20') assert.equal(button, null)
            else { assert.equal(button.disabled, true); assert.ok(page.host.textContent.includes(camera.unavailableReason)) }
            assert.equal(page.requests.some((request) => request.path.endsWith('/video/live')), false)
        } finally { await page.dispose() }
    }
})

test('unsupported returned media releases its owned session and never presents playing', async () => {
    const page = await mountJourney({ live: () => envelope(livePayload({ native: false, flv: 'https://media.invalid/live.flv' })) })
    try {
        const dialog = await openMonitor(page)
        assert.equal(dialog.querySelector('video'), null)
        assert.ok(dialog.textContent.includes('不支持'))
        assert.equal(dialog.textContent.includes('正在播放'), false)
        assert.equal(page.requests.filter((request) => request.path.endsWith('/stop')).length, 1)
    } finally { await page.dispose() }
})

test('HTTP 200 HTML is a visible failure with unconfirmed resources, not an active video', async () => {
    const page = await mountJourney({ live: () => new Response('<html>wrong route</html>', { headers: { 'Content-Type': 'text/html' } }) })
    try {
        const dialog = await openMonitor(page)
        assert.equal(dialog.querySelector('video'), null)
        assert.ok(dialog.textContent.includes('无效数据'))
        assert.ok(dialog.textContent.includes('未确认'))
        assert.equal(Array.from(dialog.querySelectorAll('button')).find((button) => button.textContent === '重新播放').disabled, true)
    } finally { await page.dispose() }
})

test('a live start exceeding 35 seconds exits visibly and releases a later owned response without opening video', async () => {
    const clock = new TestClock(); let respond
    const delayed = new Promise((resolve) => { respond = resolve })
    const page = await mountJourney({ live: () => delayed, sessionOptions: { timers: clock } })
    try {
        const dialog = await openMonitor(page)
        await clock.advance(35000)
        assert.ok(dialog.textContent.includes('视频建立超时'))
        assert.equal(dialog.querySelector('video'), null)
        respond(envelope(livePayload({ native: true, url: 'https://media.invalid/live.mp4' })))
        await settle()
        assert.equal(dialog.querySelector('video'), null)
        assert.equal(page.requests.filter((request) => request.path.endsWith('/stop')).length, 1)
        assert.equal(page.requests.filter((request) => request.path.endsWith('/video/live')).length, 1)
    } finally { await page.dispose() }
})

test('player readiness has a bound independent of HTTP success and cleans its owned session', async () => {
    const clock = new TestClock()
    const page = await mountJourney({ sessionOptions: { timers: clock } })
    try {
        const dialog = await openMonitor(page)
        assert.ok(dialog.textContent.includes('等待视频画面'))
        await clock.advance(20000)
        assert.ok(dialog.textContent.includes('播放器就绪超时'))
        assert.equal(dialog.querySelector('video'), null)
        assert.equal(page.requests.filter((request) => request.path.endsWith('/stop')).length, 1)
    } finally { await page.dispose() }
})

test('hiding the page closes video and does not reopen it when visible again', async () => {
    const page = await mountJourney()
    try {
        await openMonitor(page)
        Object.defineProperty(document, 'hidden', { configurable: true, value: true })
        document.dispatchEvent(new Event('visibilitychange')); await settle()
        assert.equal(document.querySelector('[data-video-monitor]'), null)
        Object.defineProperty(document, 'hidden', { configurable: true, value: false })
        document.dispatchEvent(new Event('visibilitychange')); await settle()
        assert.equal(page.requests.filter((request) => request.path.endsWith('/video/live')).length, 1)
        assert.equal(page.requests.filter((request) => request.path.endsWith('/stop')).length, 1)
    } finally { delete document.hidden; await page.dispose() }
})

test('latest-tab entry drives WebRTC signaling and only a video playing event establishes visible playback', async () => {
    const peers = [], signaling = []
    class Emitter {
        handlers = new Map()
        addEventListener(type, fn) { const group = this.handlers.get(type) || new Set(); group.add(fn); this.handlers.set(type, group) }
        removeEventListener(type, fn) { this.handlers.get(type)?.delete(fn) }
        emit(type, event = {}) { for (const fn of this.handlers.get(type) || []) fn(event) }
    }
    const track = new Emitter(); track.kind = 'video'; track.readyState = 'live'; track.stop = () => { track.readyState = 'ended' }
    class Peer extends Emitter {
        iceGatheringState = 'complete'; connectionState = 'new'; closed = false
        constructor(options) { super(); assert.deepEqual(options, { iceServers: [] }); peers.push(this) }
        addTransceiver() {}
        async createOffer() { return { type: 'offer', sdp: 'v=0\r\nm=video 9 UDP/TLS/RTP/SAVPF 96\r\n' } }
        async setLocalDescription(offer) { this.localDescription = offer }
        async setRemoteDescription(answer) { this.remoteDescription = answer }
        getReceivers() { return [{ track }] }
        close() { this.closed = true }
    }
    const page = await mountJourney({
        live: () => envelope(livePayload({ native: false, webrtc: 'http://media.invalid/index/api/webrtc?app=rtp&stream=cam&type=play' })),
        sessionOptions: { playerOptions: { PeerConnection: Peer, fetchImpl: async (url, options) => {
            signaling.push({ url, options }); assert.equal(options.credentials, 'omit')
            return Response.json({ code: 0, type: 'answer', sdp: 'v=0\r\nm=video 9 UDP/TLS/RTP/SAVPF 96\r\n' })
        } } },
    })
    try {
        const dialog = await openMonitor(page)
        assert.equal(signaling.length, 1)
        assert.ok(signaling[0].options.body.startsWith('v=0'))
        assert.equal(dialog.textContent.includes('正在播放'), false)
        const stream = { getTracks: () => [track], addTrack() {} }
        peers[0].emit('track', { track, streams: [stream] })
        dialog.querySelector('video').dispatchEvent(new Event('playing')); await settle()
        assert.ok(dialog.textContent.includes('正在播放'))
        dialog.querySelector('[aria-label="关闭监控"]').click(); await settle()
        assert.equal(peers[0].closed, true)
        assert.equal(track.readyState, 'ended')
        assert.equal(page.requests.filter((request) => request.path.endsWith('/stop')).length, 1)
    } finally { await page.dispose() }
})

test('device detail latest tab opens its own anonymous live video even with no collection records, then closes it', async () => {
    const page = await mountJourney()
    try {
        const latest = page.host.querySelector('[data-equipment-tab="metrics"]')
        assert.ok(latest, 'existing device-detail latest tab must be visible')
        latest.click(); await settle()
        const open = page.host.querySelector('[data-video-open]')
        assert.ok(open, 'the monitor entry must be inside the latest tab')
        assert.equal(open.disabled, false)
        open.click(); await settle()
        const dialog = document.querySelector('[role="dialog"][data-video-monitor]')
        assert.ok(dialog)
        assert.ok(dialog.textContent.includes('现场摄像机A'))
        assert.ok(dialog.textContent.includes(code))
        assert.equal(dialog.textContent.includes('owner-a'), false)
        dialog.querySelector('video').dispatchEvent(new Event('playing'))
        await settle()
        assert.ok(dialog.textContent.includes('正在播放'))
        dialog.querySelector('[aria-label="关闭监控"]').click(); await settle()
        assert.equal(document.querySelector('[data-video-monitor]'), null)
        const stops = page.requests.filter((request) => request.path.endsWith('/stop'))
        assert.equal(stops.length, 1)
        assert.deepEqual(stops[0].body, { sessionToken: 'owner-a' })
    } finally { await page.dispose() }
})

test('a failed cleanup is visible at the entry and blocks another live request until cleanup succeeds', async () => {
    let cleanupFails = true
    const page = await mountJourney({ stop: () => cleanupFails
        ? envelope({ category: 'CLEANUP_UNCONFIRMED' }, 503)
        : envelope({ sessionId: 'session-a', status: 'STOPPED' }) })
    try {
        page.host.querySelector('[data-equipment-tab="metrics"]').click(); await settle()
        page.host.querySelector('[data-video-open]').click(); await settle()
        document.querySelector('[aria-label="关闭监控"]').click(); await settle()
        const entry = page.host.querySelector('[data-video-entry]')
        assert.ok(entry.textContent.includes('会话释放未确认'))
        assert.equal(entry.querySelector('[data-video-open]').disabled, true)
        assert.equal(page.requests.filter((request) => request.path.endsWith('/video/live')).length, 1)
        cleanupFails = false
        Array.from(entry.querySelectorAll('button')).find((button) => button.textContent === '重试清理').click(); await settle()
        assert.equal(page.host.querySelector('[data-video-open]').disabled, false)
    } finally { cleanupFails = false; await page.dispose() }
})