import assert from 'node:assert/strict';
import fs from 'node:fs';
import path from 'node:path';
import test from 'node:test';

const root = path.resolve(import.meta.dirname, '../..');
const page = fs.readFileSync(path.join(root, 'src/web/components/ClientOverviewPage.tsx'), 'utf8');
const feature = fs.readFileSync(path.join(root, 'src/web/features/failover/FailoverFeature.tsx'), 'utf8');
const styles = fs.readFileSync(path.join(root, 'src/web/styles/features/failover.css'), 'utf8');

test('reserve is a Gateway-only drawer immediately after subscriptions', () => {
  assert.match(page, /<SubscriptionToggle[\s\S]*\{isGateway && <FailoverToggle[\s\S]*<InstructionsToggle/);
  assert.match(page, /\{isGateway && hasSubscription && <FailoverPanel/);
  assert.match(page, /DRAWER_ORDER = \['subscription', 'failover'/);
  assert.match(feature, /label="Резерв"/);
  assert.match(feature, /Уже открытые подключения продолжат работать/);
});

test('failover settings use Harbor switches, a two-column channel table and plain-language controls', () => {
  assert.match(feature, /client-failover-heading[\s\S]*<h2>Резервный канал<\/h2>[\s\S]*<HarborSwitch/);
  assert.match(feature, /role="switch"[\s\S]*aria-checked=\{checked\}/);
  assert.doesNotMatch(feature, /type="checkbox"|<select/);
  assert.match(feature, /\['primary', 'reserve'\][\s\S]*client-failover-\$\{channel\}-options[\s\S]*updateTarget\(channel, optionId\)/);
  assert.match(feature, /channelLabel[\s\S]*profile\.trim\(\) === server\.trim\(\)[\s\S]*`\$\{profile} · \$\{server}`/);
  assert.match(feature, /client-failover-channels[\s\S]*<article className="client-failover-channel"[\s\S]*<h3>\{channel === 'primary' \? 'Основной' : 'Резервный'}/);
  assert.match(feature, /client-failover-channel-status[\s\S]*client-failover-channel-progress/);
  assert.match(feature, /checking[\s\S]*`Проверяем \$\{channel === 'primary' \? 'основной' : 'резервный'\} канал`/);
  assert.match(feature, /client-live-region[\s\S]*Проверяем основной и резервный каналы/);
  assert.match(feature, /ArrowDown[\s\S]*Home[\s\S]*End[\s\S]*Escape/);
  assert.match(feature, /role="listbox"[\s\S]*role="option"/);
  assert.match(feature, /Что проверять[\s\S]*Harbor проверяет эти сайты через оба канала, чтобы понять, какой канал работает/);
  assert.match(feature, /before="Ждать ответа не дольше"[\s\S]*min=\{2}[\s\S]*max=\{30}/);
  assert.match(feature, /Проверять оба канала каждые[\s\S]*Считать основной канал недоступным, если он не отвечает[\s\S]*Вернуться на основной канал после/);
  assert.match(feature, /Дождаться паузы в передаче данных[\s\S]*Переключить после[\s\S]*без передачи данных[\s\S]*Считать передачу активной при скорости выше/);
  assert.match(feature, /Когда переключаться на резервный канал[\s\S]*основной канал не отвечает, а резервный канал работает[\s\S]*Повторные сбои основного канала[\s\S]*оставляет новые подключения на резервном канале/);
  assert.doesNotMatch(feature, /Когда включать резервный|Harbor включит резервный,|через резервный\./);
  assert.match(feature, /client-failover-number-input[\s\S]*Math\.max\(2, String\(value\)\.length \+ 0\.6\)/);
  assert.match(feature, /client-failover-number-control[\s\S]*client-failover-number-input[\s\S]*client-failover-number-steps[\s\S]*уменьшить на \$\{step\}[\s\S]*>−<\/button>[\s\S]*увеличить на \$\{step\}[\s\S]*>\+<\/button>/);
  assert.match(feature, /before="Ждать ответа не дольше"[\s\S]*step=\{1\}/);
  assert.doesNotMatch(feature, /advancedOpen|advancedClosing|toggleAdvanced|aria-controls="client-failover-advanced-options"/);
  assert.match(feature, /label="Добавить проверку"/);
  assert.match(feature, /Новый HTTPS-сервис…/);
  assert.match(feature, /Убрать проверку:/);
  assert.match(feature, /client-failover-remove-lid/);
  assert.match(feature, /finishRemoveCheck/);
  assert.match(feature, /startViewTransition/);
  assert.match(feature, /onInput=\{pulseNumber\}/);
  assert.doesNotMatch(feature, /<details|<summary|Нет данных|текущий канал вне настроенной пары/);
  assert.doesNotMatch(page, /Текущий канал вне резервной пары/);
  assert.match(page, /Резерв применится после перезапуска VPN/);
  assert.match(feature, /client-failover-header-actions[\s\S]*Автоматика[\s\S]*checked=\{!snapshot\.paused\}[\s\S]*Включить автоматическое переключение[\s\S]*Остановить автоматическое переключение[\s\S]*className="client-failover-save"[\s\S]*type="submit"[\s\S]*form="client-failover-form"[\s\S]*Сохранить/);
  assert.match(feature, /onChange=\{\(automatic\) => void onPause\(!automatic\)\}/);
  assert.match(feature, /checked=\{!snapshot\.paused\}[\s\S]*disabled=\{blocked \|\| !snapshot.enabled\}/);
  assert.match(feature, /client-failover-check-action[\s\S]*disabled=\{blocked \|\| checking \|\| !snapshot.enabled \|\| snapshot.activation !== 'active'\}/);
  assert.doesNotMatch(feature, /client-failover-actions|client-failover-global-actions|client-failover-discard/);
  assert.match(feature, /channel === 'primary' && <div className="client-failover-channel-actions"[\s\S]*client-failover-check-action client-tooltip-anchor[\s\S]*aria-label="Проверить оба канала"[\s\S]*aria-busy=\{checking\}[\s\S]*client-failover-direction-action client-tooltip-anchor[\s\S]*aria-label=\{switchActionLabel\}/);
  assert.match(feature, /switchActionLabel = role && switchRole[\s\S]*`Сейчас \$\{role === 'primary' \? 'основной' : 'резервный'\} канал\. Переключить на/);
  assert.match(feature, /<Tooltip>Проверить оба канала<\/Tooltip>[\s\S]*<Tooltip>\{switchActionLabel\}<\/Tooltip>/);
  assert.match(feature, /M20 11a8 8 0 1 0-2\.3 6\.7M20 5v6h-6/);
  assert.match(feature, /M4 12h15M14 7l5 5-5 5/);
  assert.match(feature, /normalizeFailoverDraft = \(policy: FailoverPolicy\)[\s\S]*minimumReserveMs: Math\.round\(normalized\.minimumReserveMs \/ 60_000\) \* 60_000/);
  assert.match(feature, /before="Оставаться на резервном канале не меньше" after="минут" min=\{1\} max=\{1440\} step=\{1\}[\s\S]*value=\{draft\.minimumReserveMs \/ 60_000\}[\s\S]*minimumReserveMs: Math\.round\(value\) \* 60_000/);
  assert.doesNotMatch(feature, /className="client-failover-number-input"[\s\S]*max=\{max\}[\s\S]*step=\{step\}/);
  assert.match(feature, /<ConfirmationDialog[\s\S]*id="discard-failover"[\s\S]*Закрыть без сохранения\?[\s\S]*Несохранённые настройки резервного канала будут потеряны\.[\s\S]*Остаться[\s\S]*Закрыть без сохранения/);
  assert.match(feature, /discardContinuationFrameRef[\s\S]*cancelAnimationFrame[\s\S]*requestAnimationFrame[\s\S]*continueNavigation[\s\S]*feature\.close\(\)/);
  assert.match(page, /if \(!failoverFeature\.beforeCloseRef\.current\(\)\)[\s\S]*pendingTargetRef\.current = \(\) => switchDrawer\(target\)[\s\S]*pendingTargetRef\.current = null/);
  assert.match(styles, /\.client-failover-check-action\.is-running svg \{ animation: client-spin 900ms linear infinite; \}/);
  assert.match(styles, /\.client-failover-direction-action svg \{[^}]*transition: transform 260ms cubic-bezier\(0\.16, 1, 0\.3, 1\)/);
  assert.match(styles, /\.client-failover-direction-action svg\.is-primary \{ transform: rotate\(180deg\); \}/);
  assert.match(styles, /\.client-failover-direction-action\.is-primary \{ color: var\(--harbor-connect\); \}/);
  assert.match(styles, /\.client-failover-direction-action\.is-reserve \{ color: var\(--harbor-gateway\); \}/);
  assert.match(styles, /@media \(prefers-reduced-motion: reduce\)[\s\S]*client-failover-direction-action svg[\s\S]*transition: none[\s\S]*client-failover-check-action\.is-running svg[\s\S]*animation: none/);
  assert.match(styles, /\.client-failover-switch\[aria-checked='true'\][\s\S]*translateX\(22px\)/);
  assert.match(styles, /\.client-failover-header \{[^}]*position:\s*sticky[^}]*top:\s*0[^}]*background:/);
  assert.match(styles, /\.client-failover-heading \{[^}]*justify-content:\s*space-between[^}]*}/);
  assert.doesNotMatch(styles, /\.client-failover-heading \{[^}]*padding-right/);
  assert.match(styles, /\.client-failover-channels \{[^}]*grid-template-columns:\s*minmax\(0, 1fr\) 52px minmax\(0, 1fr\)/);
  assert.match(styles, /\.client-failover-channel-actions \{[^}]*grid-column:\s*2[^}]*grid-row:\s*1/);
  assert.match(styles, /\.client-failover-check-action, \.client-failover-direction-action \{[^}]*width:\s*44px[^}]*height:\s*44px/);
  assert.match(styles, /@media \(max-width: 680px\)[\s\S]*\.client-failover-channels \{ grid-template-columns:\s*minmax\(0, 1fr\)/);
  assert.match(styles, /\.client-failover-picker-list[\s\S]*opacity:\s*0[\s\S]*\.client-failover-picker\.is-open[\s\S]*opacity:\s*1/);
  assert.match(styles, /failover-service-out 300ms[\s\S]*@media \(prefers-reduced-motion: reduce\)/);
  assert.match(styles, /\.client-failover-number-setting \{[^}]*display:\s*flex[^}]*flex-wrap:\s*wrap/);
  assert.match(styles, /\.client-failover-number-control \{[^}]*position:\s*relative[^}]*min-width:\s*44px[^}]*padding-bottom:\s*18px/);
  assert.match(styles, /\.client-failover-number-setting input \{[^}]*border:\s*0[^}]*text-align:\s*center[^}]*appearance:\s*textfield/);
  assert.match(styles, /input::\-webkit-inner-spin-button[\s\S]*input::\-webkit-outer-spin-button[^}]*\-webkit-appearance:\s*none/);
  assert.match(styles, /\.client-failover-number-setting \{[^}]*font:\s*var\(--type-data\)/);
  assert.match(styles, /\.client-failover-section-header p,[^}]*font:\s*var\(--type-control\)/);
  assert.match(styles, /\.client-failover-number-steps \{[^}]*position:\s*absolute[^}]*opacity:\s*0[^}]*pointer-events:\s*none[^}]*opacity 260ms ease 80ms/);
  assert.match(styles, /\.client-failover-number-control:hover \.client-failover-number-steps,[^}]*:focus-within[^}]*opacity:\s*1[^}]*pointer-events:\s*auto[^}]*opacity 180ms ease[^}]*transform 220ms/);
  assert.match(styles, /\.client-failover-timing \{[^}]*gap:\s*0[^}]*\}[\s\S]*\.client-failover-protection-options \{[^}]*gap:\s*0/);
  assert.doesNotMatch(styles, /client-failover-advanced|failover-advanced-in|failover-advanced-out/);
});

test('active channel and checks stay attached to their channel columns without a duplicate runtime block', () => {
  assert.match(feature, /failureProgress[\s\S]*`\$\{seconds\([\s\S]*\)} \/ \$\{seconds\(draft\.failureWindowMs\)} с`/);
  assert.match(feature, /failureProgress[\s\S]*'Проверяем основной канал'/);
  assert.match(feature, /client-failover-direction-action[\s\S]*disabled=\{blocked \|\| !snapshot.enabled \|\| snapshot.activation !== 'active' \|\| !switchRole\}/);
  assert.match(feature, /className=\{`client-failover-direction-action client-tooltip-anchor\$\{role === 'primary'[\s\S]*role === 'reserve'/);
  assert.match(feature, /<svg className=\{role === 'primary' \? 'is-primary' : role === 'reserve' \? 'is-reserve' : undefined\}/);
  assert.doesNotMatch(feature, /client-failover-runtime|Сейчас используется|Новые подключения:/);
  assert.doesNotMatch(feature, /client-failover-channel-checking/);
  assert.doesNotMatch(styles, /\.client-failover-runtime/);
  assert.match(styles, /\.client-failover-channel-status \{[^}]*min-height:\s*32px[^}]*grid-template-columns:\s*minmax\(0, 1fr\)[^}]*grid-template-rows:\s*repeat\(2, minmax\(0, 1fr\)\)/);
  assert.match(styles, /\.client-failover-channel-progress \{[^}]*min-width:\s*0[^}]*text-align:\s*left/);
  assert.match(styles, /@media \(prefers-reduced-motion: reduce\)[^{]*\{[^}]*\.client-failover-number-control:hover \.client-failover-number-steps[^}]*transition:\s*none/);
});