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

import { readStyleSource } from './style-source.js';

const root = path.resolve(import.meta.dirname, '../..');
const overview = fs.readFileSync(path.join(root, 'src/web/components/ClientOverviewPage.tsx'), 'utf8');
const feature = fs.readFileSync(path.join(root, 'src/web/features/instructions/InstructionsFeature.tsx'), 'utf8');
const instructions = fs.readFileSync(path.join(root, 'src/web/features/instructions/instructionBlocks.ts'), 'utf8');
const prometheus = fs.readFileSync(path.join(root, 'src/web/features/instructions/prometheus.ts'), 'utf8');
const styles = readStyleSource(root);
const dashboard = JSON.parse(fs.readFileSync(path.join(root, 'monitoring/grafana/harbor-gateway.json'), 'utf8'));

test('Gateway info drawer contains copyable Prometheus and Grafana instructions', () => {
  assert.match(instructions, /\.\.\.\(isGateway \? \[\{/);
  assert.match(instructions, /id: 'prometheus'/);
  assert.match(instructions, /title: 'Prometheus и Grafana'/);
  assert.match(instructions, /prometheusScrapeConfig\(controlHost\)/);
  assert.match(instructions, /label: 'prometheus\.yml'/);
  assert.match(instructions, /label: 'Grafana dashboard'/);
  assert.match(prometheus, /monitoring\/grafana\/harbor-gateway\.json/);
  assert.match(prometheus, /scrape_interval: 30s[\s\S]*metrics_path: \/metrics/);
  assert.match(overview, /const controlHost = window\.location\.host/);
  assert.match(feature, /client-copy-label">Скопировать/);
  assert.doesNotMatch(`${overview}\n${feature}`, /prometheus-toggle|Prometheus<\/span><\/button>/);
  assert.match(styles, /\.client-instruction-copy-button \{[\s\S]*width: 104px;[\s\S]*min-width: 104px/);
  assert.match(styles, /@media \(prefers-reduced-motion: reduce\)[\s\S]*\.client-copy-feedback/);
});

test('Grafana dashboard uses one all-or-one device scope and shows active device speed', () => {
  const expressions = dashboard.panels.flatMap((panel) => panel.targets || []).map(({ expr }) => expr).filter(Boolean);
  const titles = dashboard.panels.map(({ title }) => title);
  const deviceVariable = dashboard.templating.list[0];
  const freshness = dashboard.panels.find(({ id }) => id === 2);
  const globalSpeed = dashboard.panels.find(({ id }) => id === 3);
  const topDevices = dashboard.panels.find(({ id }) => id === 5);
  const sourceSpeed = dashboard.panels.find(({ id }) => id === 6);
  const deviceSpeed = dashboard.panels.find(({ id }) => id === 14);
  const services = dashboard.panels.find(({ id }) => id === 8);
  const domains = dashboard.panels.find(({ id }) => id === 9);

  assert.equal(dashboard.title, 'Harbor Gateway: трафик');
  assert.equal(dashboard.refresh, '30s');
  assert.deepEqual(titles.filter((title) => ['Обзор', 'Устройства', 'Сервисы и домены', 'Техническая детализация'].includes(title)), [
    'Обзор',
    'Устройства',
    'Сервисы и домены',
    'Техническая детализация',
  ]);
  assert.ok(titles.includes('Скорость сейчас, средняя за 5 минут'));
  assert.ok(titles.includes('Скорость по устройствам сейчас'));
  assert.ok(titles.includes('Скорость по источникам и направлениям сейчас'));
  assert.ok(titles.includes('Топ-10 устройств за выбранный период'));
  assert.ok(titles.includes('Накоплено по источникам и направлениям'));
  assert.ok(titles.includes('Сервисы за выбранный период'));
  assert.ok(titles.includes('Домены за выбранный период'));
  assert.ok(expressions.some((expression) => expression.includes('harbor_traffic_bytes_total')));
  assert.ok(expressions.some((expression) => expression.includes('harbor_device_traffic_bytes_total')));
  assert.ok(expressions.some((expression) => expression.includes('harbor_device_domain_traffic_bytes_total{device_id=~"$device_id"}[$__range]')));
  assert.ok(expressions.some((expression) => expression.includes('harbor_domain_traffic_last_observed_timestamp_seconds')));
  assert.match(topDevices.targets[0].expr, /^topk\(10,[\s\S]*increase\(harbor_device_traffic_bytes_total\[\$__range\]\)[\s\S]*> 0[\s\S]*group_left \(name, ip\)/);
  assert.equal(topDevices.options.sortBy[0].desc, true);
  assert.match(topDevices.fieldConfig.overrides[1].properties[0].value[0].url, /var-device_id=\$\{__data\.fields/);
  assert.doesNotMatch(topDevices.fieldConfig.overrides[1].properties[0].value[0].url, /domain_device_id/);
  assert.deepEqual(freshness.fieldConfig.defaults.thresholds.steps.map(({ value }) => value), [null, 60, 120]);
  assert.equal(freshness.fieldConfig.defaults.noValue, 'Нет данных');
  assert.equal(deviceVariable.name, 'device_id');
  assert.equal(deviceVariable.multi, false);
  assert.equal(deviceVariable.includeAll, true);
  assert.equal(deviceVariable.allValue, '.*');
  assert.equal(deviceVariable.current.value, '$__all');
  assert.equal(dashboard.templating.list.length, 1);
  assert.match(deviceVariable.query.query, /query_result\(label_join\(/);
  assert.match(deviceVariable.regex, /<text>/);
  assert.match(deviceVariable.regex, /<value>/);
  assert.ok(globalSpeed.targets.every(({ expr }) => expr.includes('device_id=~"$device_id"') && expr.endsWith('> 0')));
  assert.match(deviceSpeed.targets[0].expr, /sum by \(device_id\)[\s\S]*device_id=~"\$device_id"[\s\S]*> 0[\s\S]*group_left \(name, ip\)/);
  assert.match(deviceSpeed.targets[0].legendFormat, /\{\{name\}\} · \{\{ip\}\}/);
  assert.deepEqual(deviceSpeed.fieldConfig.defaults.custom.scaleDistribution, {
    linearThreshold: 1048576,
    log: 2,
    type: 'symlog',
  });
  assert.match(sourceSpeed.targets[0].expr, /device_id=~"\$device_id"[\s\S]*> 0$/);
  assert.match(services.targets[0].expr, /device_id=~"\$device_id"[\s\S]*> 0\)$/);
  assert.deepEqual(domains.transformations[0].options.indexByName, { service: 0, domain: 1, Value: 2 });
  assert.match(domains.targets[0].expr, /^topk\(15,[\s\S]*device_id=~"\$device_id"[\s\S]*> 0\)$/);
  assert.ok(dashboard.panels
    .filter(({ type }) => ['bargauge', 'table'].includes(type))
    .flatMap(({ targets }) => targets || [])
    .every(({ expr }) => expr.includes('> 0')));
});