import { observedTrafficFixturePayload } from "./traffic-observation-fixture"
import { installOpenLiveStream, resumeLiveStream, sendLiveHeartbeat } from "./live-stream-fixture"
import { test, expect } from '@playwright/test'

for (const variant of ['closed', 'invalid', 'http-error', 'silent', 'awaiting'] as const) {
  test(`Трафик: SSE ${variant} не выдаёт старое измерение за live`, async ({ page }) => {
    const server = { id: '1', name: 'Тестовый сервер', site: 'TEST', country: 'RU', status: 'online', rxNow: 2, txNow: 3, rxPeak: 5, txPeak: 6, rxTotal: 100, txTotal: 200, sessions: 1, rxSeries: [1, 2], txSeries: [2, 3] }
    await page.route('**/health', route => route.fulfill({ json: observedTrafficFixturePayload({ ok: true }) }))
    await page.route('**/api/**', route => {
      const url = new URL(route.request().url())
      const path = url.pathname
      if (path.endsWith('/live')) {
        if (variant === 'http-error' || url.searchParams.get('iface') === 'ether2') return route.fulfill({ status: 503, json: observedTrafficFixturePayload({ error: 'Поток недоступен' }) })
        const sample = { rxMbps: 17, txMbps: 19, at: '2026-09-23T12:00:00Z' }
        const body = 'event: sample\ndata: ' + JSON.stringify(sample) + '\n\n' + (variant === 'invalid' ? 'event: sample\ndata: {"rxMbps":null,"txMbps":-1}\n\n' : '')
        return route.fulfill({ contentType: 'text/event-stream', body })
      }
      const json = path === '/api/auth/config' ? { required: false }
        : path === '/api/traffic/servers' ? { servers: [server] }
        : path === '/api/traffic/servers/1' ? { server }
        : path === '/api/traffic/servers/1/interfaces' ? { interfaces: [{ name: 'ether2', running: true, disabled: false, rxNow: 0, txNow: 0 }] }
        : path.endsWith('/interfaces') || path === '/api/traffic/bound-interfaces' ? { interfaces: [] }
        : path === '/api/traffic/users' ? { users: [] }
        : path === '/api/servers' ? [] : {}
      return route.fulfill({ json: observedTrafficFixturePayload(json) })
    })
    if (variant === 'silent' || variant === 'awaiting') await installOpenLiveStream(page, '/api/traffic/servers/1/live', { rxMbps: 17, txMbps: 19, at: '2026-09-23T12:00:00Z' }, variant !== 'awaiting')
    const received = new Date('2026-09-28T06:00:00Z')
    await page.clock.setFixedTime(received)
    await page.goto('/traffic')
    const summary = page.getByLabel('Скорость выбранного сервера')
    await expect(summary).toBeVisible()
    if (variant === 'awaiting') {
      const measurement = page.getByLabel('Последнее измерение сервера')
      await expect(summary.getByText('История · ожидание live', { exact: true }).filter({ visible: true })).toHaveCount(2)
      await expect(measurement).toHaveCount(0)
      await expect(summary).not.toContainText('17.0')
      await page.clock.fastForward(10_000)
      await sendLiveHeartbeat(page)
      await page.clock.fastForward(5_001)
      await expect(summary.getByText('История · live недоступен', { exact: true }).filter({ visible: true })).toHaveCount(2)
      await expect(measurement).toHaveCount(0)
      await resumeLiveStream(page)
      await expect(summary.getByText('live', { exact: true }).filter({ visible: true })).toHaveCount(2)
      await expect(summary).toContainText('17.0')
      await expect(measurement).toBeVisible()
      return
    }
    if (variant === 'silent') {
      await expect(summary.getByText('live', { exact: true }).filter({ visible: true })).toHaveCount(2)
      const stamp = await page.getByLabel('Последнее измерение сервера').locator('time').first().getAttribute('datetime')
      await page.clock.fastForward(10_000)
      await sendLiveHeartbeat(page)
      await page.clock.fastForward(5_001)
      await expect(summary.getByText('live', { exact: true })).toHaveCount(0)
      await expect(summary).toContainText('17.0')
      await expect(page.getByLabel('Последнее измерение сервера').locator('time').first()).toHaveAttribute('datetime', stamp!)
      await resumeLiveStream(page)
      await expect(summary.getByText('live', { exact: true }).filter({ visible: true })).toHaveCount(2)
      await page.getByRole('group', { name: 'Разделы трафика' }).getByRole('button', { name: 'Клиенты', exact: true }).click()
      await page.clock.fastForward(15_001)
      await expect(page.getByLabel('Последнее измерение сервера')).toHaveCount(0)
      return
    }
    const hint = variant === 'http-error' ? 'История · live недоступен' : 'Последнее live'
    await expect(summary.getByText(hint, { exact: true }).filter({ visible: true })).toHaveCount(2)
    await expect(summary.getByText('live', { exact: true })).toHaveCount(0)
    await expect(page.getByLabel('Получение истории сервера').locator('time')).toHaveAttribute('datetime', received.toISOString())
    const measurement = page.getByLabel('Последнее измерение сервера')
    if (variant === 'http-error') await expect(measurement).toHaveCount(0)
    if (variant !== 'http-error') {
      await expect(measurement.locator('time').nth(0)).toHaveAttribute('datetime', received.toISOString())
      await expect(measurement).toContainText('метка сервера:')
      await expect(measurement.locator('time').nth(1)).toHaveAttribute('datetime', '2026-09-23T12:00:00Z')
      await page.clock.setFixedTime(new Date('2026-09-28T06:05:00Z'))
      await expect(measurement.locator('time').nth(0)).toHaveAttribute('datetime', received.toISOString())
      await expect(summary).toContainText('17.0')
      await expect(summary).toContainText('19.0')
      if (variant === 'closed') {
        await page.getByRole('button', { name: 'ether2', exact: true }).click()
        await expect(summary.getByText('История · live недоступен', { exact: true }).filter({ visible: true })).toHaveCount(2)
        await expect(measurement).toHaveCount(0)
        await expect(summary).not.toContainText('17.0')
      }
    }
  })
}