#!/usr/bin/env node

import { mkdir, writeFile } from 'node:fs/promises';
import path from 'node:path';
import { fileURLToPath } from 'node:url';

import { chromium } from 'playwright';

import { authenticateFrontdoor, createAuthenticatedContext } from './live-frontdoor-auth.mjs';

const __filename = fileURLToPath(import.meta.url);
const __dirname = path.dirname(__filename);
const webRoot = path.resolve(__dirname, '..');
const outputDir = path.join(webRoot, 'output', 'playwright');
const outputPath = path.join(outputDir, 'live-uncovered-surface-action-sweep.json');
const authStatePath = path.join(outputDir, 'live-uncovered-surface-action-sweep.state.json');
const authReportPath = path.join(outputDir, 'live-uncovered-surface-action-sweep.auth.json');

const baseUrl = process.env.STELLAOPS_FRONTDOOR_BASE_URL?.trim() || 'https://stella-ops.local';
const scopeQuery = 'tenant=demo-prod&regions=us-east&environments=stage&timeWindow=7d';

const linkChecks = [
  ['/releases/overview', 'Release Versions', '/releases/versions'],
  ['/releases/overview', 'Release Runs', '/releases/runs'],
  ['/releases/overview', 'Approvals Queue', '/releases/approvals'],
  ['/releases/overview', 'Hotfixes', '/releases/hotfixes'],
  ['/releases/overview', 'Promotions', '/releases/promotions'],
  ['/releases/overview', 'Deployment History', '/releases/deployments'],
  ['/releases/runs', 'Timeline', '/releases/runs?view=timeline'],
  ['/releases/runs', 'Table', '/releases/runs?view=table'],
  ['/releases/runs', 'Correlations', '/releases/runs?view=correlations'],
  ['/releases/approvals', 'Pending', '/releases/approvals?tab=pending'],
  ['/releases/approvals', 'Approved', '/releases/approvals?tab=approved'],
  ['/releases/approvals', 'Rejected', '/releases/approvals?tab=rejected'],
  ['/releases/approvals', 'Expiring', '/releases/approvals?tab=expiring'],
  ['/releases/approvals', 'My Team', '/releases/approvals?tab=my-team'],
  ['/releases/environments', 'Open Environment', '/setup/topology/environments/stage/posture'],
  ['/releases/environments', 'Open Targets', '/setup/topology/targets'],
  ['/releases/environments', 'Open Agents', '/setup/topology/agents'],
  ['/releases/environments', 'Open Runs', '/releases/runs'],
  ['/releases/investigation/deploy-diff', 'Open Deployments', '/releases/deployments'],
  ['/releases/investigation/deploy-diff', 'Open Releases Overview', '/releases/overview'],
  ['/releases/investigation/change-trace', 'Open Deployments', '/releases/deployments'],
  ['/security/posture', 'Open triage', '/security/triage'],
  ['/security/posture', 'Disposition', '/security/disposition'],
  ['/security/posture', 'Configure sources', '/ops/integrations/advisory-vex-sources'],
  ['/security/posture', 'Open reachability coverage board', '/security/reachability'],
  ['/security/advisories-vex', 'Providers', '/security/advisories-vex?tab=providers'],
  ['/security/advisories-vex', 'VEX Library', '/security/advisories-vex?tab=vex-library'],
  ['/security/advisories-vex', 'Issuer Trust', '/security/advisories-vex?tab=issuer-trust'],
  ['/security/disposition', 'Conflicts', '/security/disposition?tab=conflicts'],
  ['/security/supply-chain-data', 'SBOM Graph', '/security/supply-chain-data/graph'],
  ['/security/supply-chain-data', 'Reachability', '/security/reachability'],
  ['/evidence/overview', 'Audit Log', '/evidence/audit-log'],
  ['/evidence/overview', 'Export Center', '/evidence/exports'],
  ['/evidence/overview', 'Replay & Verify', '/evidence/verify-replay'],
  ['/evidence/audit-log', 'View All Events', '/evidence/audit-log/events'],
  ['/evidence/audit-log', 'Export', '/evidence/exports'],
  ['/evidence/audit-log', /Policy Audit/i, '/evidence/audit-log/policy'],
  ['/ops/operations/health-slo', 'View Full Timeline', '/ops/operations/health-slo/incidents'],
  ['/ops/operations/feeds-airgap', 'Configure Sources', '/ops/integrations/advisory-vex-sources'],
  ['/ops/operations/feeds-airgap', 'Open Offline Bundles', '/ops/operations/offline-kit/bundles'],
  ['/ops/operations/feeds-airgap', 'Version Locks', '/ops/operations/feeds-airgap?tenant=demo-prod&regions=us-east&environments=stage&timeWindow=7d&tab=version-locks'],
  ['/ops/operations/data-integrity', 'Feeds Freshness WARN Impact: BLOCKING NVD feed stale by 3h 12m', '/ops/operations/data-integrity/feeds-freshness'],
  ['/ops/operations/data-integrity', 'Hotfix 1.2.4', '/releases/approvals?releaseId=rel-hotfix-124'],
  ['/ops/operations/jobengine', 'Scheduler Runs', '/ops/operations/scheduler/runs'],
  ['/ops/operations/jobengine', /Execution Quotas/i, '/ops/operations/jobengine/quotas'],
  ['/ops/operations/offline-kit', 'Bundles', '/ops/operations/offline-kit/bundles'],
  ['/ops/operations/offline-kit', 'JWKS', '/ops/operations/offline-kit/jwks'],
];

const buttonChecks = [
  ['/releases/versions', 'Create Release Version', '/releases/versions/new'],
  ['/releases/versions', 'Create Hotfix Run', '/releases/versions/new'],
  ['/releases/versions', 'Search'],
  ['/releases/versions', 'Clear'],
  ['/releases/investigation/timeline', 'Export'],
  ['/releases/investigation/change-trace', 'Export'],
  ['/security/sbom-lake', 'Refresh'],
  ['/security/sbom-lake', 'Clear'],
  ['/security/reachability', 'Witnesses'],
  ['/security/reachability', /PoE|Proof of Exposure/i],
  ['/evidence/capsules', 'Search'],
  ['/evidence/threads', 'Search'],
  ['/evidence/proofs', 'Search'],
  ['/ops/operations/system-health', 'Services'],
  ['/ops/operations/system-health', 'Incidents'],
  ['/ops/operations/system-health', 'Quick Diagnostics'],
  ['/ops/operations/scheduler', 'Manage Schedules', '/ops/operations/scheduler/schedules'],
  ['/ops/operations/scheduler', 'Worker Fleet', '/ops/operations/scheduler/workers'],
  ['/ops/operations/doctor', 'Quick Check'],
  ['/ops/operations/signals', 'Refresh'],
  ['/ops/operations/packs', 'Refresh'],
  ['/ops/operations/status', 'Refresh'],
];

function buildUrl(route) {
  const separator = route.includes('?') ? '&' : '?';
  return `${baseUrl}${route}${separator}${scopeQuery}`;
}

async function settle(page) {
  await page.waitForLoadState('domcontentloaded', { timeout: 15_000 }).catch(() => {});
  await page.waitForTimeout(1_500);
}

async function captureSnapshot(page, label) {
  const alerts = await page
    .locator('[role="alert"], .mat-mdc-snack-bar-container, .toast, .notification, .error-banner, .warning-banner')
    .evaluateAll((nodes) =>
      nodes
        .map((node) => (node.textContent || '').trim().replace(/\s+/g, ' '))
        .filter(Boolean)
        .slice(0, 5),
    )
    .catch(() => []);

  return {
    label,
    url: page.url(),
    title: await page.title().catch(() => ''),
    heading: await page.locator('h1, h2, [data-testid="page-title"], .page-title').first().innerText().catch(() => ''),
    alerts,
  };
}

async function navigate(page, route) {
  await page.goto(buildUrl(route), { waitUntil: 'domcontentloaded', timeout: 30_000 });
  await settle(page);
}

async function findLink(page, name, timeoutMs = 10_000) {
  const deadline = Date.now() + timeoutMs;
  while (Date.now() < deadline) {
    const link = page.getByRole('link', { name }).first();
    if (await link.count()) {
      return link;
    }

    await page.waitForTimeout(250);
  }

  return null;
}

function matchesLocatorName(name, text) {
  if (!text) {
    return false;
  }

  const normalizedText = text.trim();
  if (!normalizedText) {
    return false;
  }

  if (name instanceof RegExp) {
    return name.test(normalizedText);
  }

  return normalizedText.includes(name);
}

async function findScopedLink(page, scopeSelector, name) {
  const scope = page.locator(scopeSelector).first();
  if (!(await scope.count())) {
    return null;
  }

  const descendantLink = scope.getByRole('link', { name }).first();
  if (await descendantLink.count()) {
    return descendantLink;
  }

  const [tagName, href, text] = await Promise.all([
    scope.evaluate((element) => element.tagName.toLowerCase()).catch(() => ''),
    scope.getAttribute('href').catch(() => null),
    scope.textContent().catch(() => ''),
  ]);

  if (tagName === 'a' && href && matchesLocatorName(name, text ?? '')) {
    return scope;
  }

  return null;
}

async function findLinkForRoute(page, route, name, timeoutMs = 10_000) {
  const deadline = Date.now() + timeoutMs;
  while (Date.now() < deadline) {
    let locator = null;

    if (route === '/releases/environments' && name === 'Open Environment') {
      locator = page.locator('.actions').getByRole('link', { name }).first();
    } else if (route === '/security/posture' && name === 'Configure sources') {
      locator = page.locator('#main-content .panel').getByRole('link', { name }).first();
    } else if (route === '/ops/operations/jobengine' && name instanceof RegExp && String(name) === String(/Execution Quotas/i)) {
      locator = await findScopedLink(page, '[data-testid="jobengine-quotas-card"]', name);
    } else if (route === '/ops/operations/offline-kit' && name === 'Bundles') {
      locator = page.locator('.tab-nav').getByRole('link', { name }).first();
    } else {
      locator = page.getByRole('link', { name }).first();
    }

    if (await locator.count()) {
      return locator;
    }

    await page.waitForTimeout(250);
  }

  return null;
}

async function findButton(page, route, name, timeoutMs = 10_000) {
  const deadline = Date.now() + timeoutMs;
  const scopes = [];
  if (route === '/releases/versions' && name === 'Create Hotfix Run') {
    scopes.push(page.locator('#main-content .header-actions').first());
  }
  scopes.push(page.locator('#main-content').first(), page.locator('body'));

  while (Date.now() < deadline) {
    for (const scope of scopes) {
      for (const role of ['button', 'tab']) {
        const button = scope.getByRole(role, { name }).first();
        if (await button.count()) {
          return button;
        }
      }
    }

    await page.waitForTimeout(250);
  }

  return null;
}

async function waitForPath(page, expectedPath, timeoutMs = 10_000) {
  const deadline = Date.now() + timeoutMs;
  while (Date.now() < deadline) {
    if (normalizeUrl(page.url()).includes(expectedPath)) {
      return true;
    }

    await page.waitForTimeout(250);
  }

  return false;
}

async function findButtonLegacy(page, name, timeoutMs = 10_000) {
  const deadline = Date.now() + timeoutMs;
  while (Date.now() < deadline) {
    for (const role of ['button', 'tab']) {
      const button = page.getByRole(role, { name }).first();
      if (await button.count()) {
        return button;
      }
    }

    await page.waitForTimeout(250);
  }

  return null;
}

function normalizeUrl(url) {
  return decodeURIComponent(url);
}

function shouldIgnoreConsoleError(message) {
  return message === 'Failed to load resource: the server responded with a status of 401 ()';
}

function shouldIgnoreRequestFailure(request) {
  return request.failure === 'net::ERR_ABORTED';
}

function shouldIgnoreResponseError(response) {
  return response.status === 401 && /\/doctor\/api\/v1\/doctor\/run\/[^/]+\/stream$/i.test(response.url);
}

async function runLinkCheck(page, route, name, expectedPath) {
  const action = `${route} -> link:${name}`;
  try {
    await navigate(page, route);
    const link = await findLinkForRoute(page, route, name);
    if (
      !link &&
      route === '/ops/operations/jobengine' &&
      name instanceof RegExp &&
      String(name) === String(/Execution Quotas/i)
    ) {
      const quotasCardText = await page.locator('[data-testid="jobengine-quotas-card"]').textContent().catch(() => '');
      const snapshot = await captureSnapshot(page, action);
      return {
        action,
        ok: /access required to manage quotas/i.test(quotasCardText ?? ''),
        expectedPath,
        finalUrl: normalizeUrl(snapshot.url),
        snapshot,
        reason: 'restricted-card',
      };
    }

    if (!link) {
      return { action, ok: false, reason: 'missing-link', snapshot: await captureSnapshot(page, action) };
    }

    await link.click({ timeout: 10_000 });
    if (expectedPath) {
      await waitForPath(page, expectedPath, 10_000);
    }
    await settle(page);
    const snapshot = await captureSnapshot(page, action);
    const finalUrl = normalizeUrl(snapshot.url);
    return {
      action,
      ok: finalUrl.includes(expectedPath),
      expectedPath,
      finalUrl,
      snapshot,
    };
  } catch (error) {
    return {
      action,
      ok: false,
      reason: 'exception',
      error: error instanceof Error ? error.message : String(error),
      snapshot: await captureSnapshot(page, action),
    };
  }
}

async function runButtonCheck(page, route, name, expectedPath = null) {
  const action = `${route} -> button:${name}`;
  try {
    await navigate(page, route);
    const button = await findButton(page, route, name).catch(() => null) ?? await findButtonLegacy(page, name);
    if (!button) {
      return { action, ok: false, reason: 'missing-button', snapshot: await captureSnapshot(page, action) };
    }

    const disabled = await button.isDisabled().catch(() => false);
    if (disabled) {
      const snapshot = await captureSnapshot(page, action);
      return {
        action,
        ok: true,
        reason: 'disabled-by-design',
        expectedPath,
        finalUrl: normalizeUrl(snapshot.url),
        snapshot,
      };
    }

    await button.click({ timeout: 10_000 });
    if (expectedPath) {
      await waitForPath(page, expectedPath, 10_000);
    }
    await settle(page);
    const snapshot = await captureSnapshot(page, action);
    const finalUrl = normalizeUrl(snapshot.url);
    const hasRuntimeAlert = snapshot.alerts.some((text) => /(error|failed|unable|timed out|unavailable)/i.test(text));
    return {
      action,
      ok: expectedPath ? finalUrl.includes(expectedPath) : snapshot.heading.trim().length > 0 && !hasRuntimeAlert,
      expectedPath,
      finalUrl,
      snapshot,
    };
  } catch (error) {
    return {
      action,
      ok: false,
      reason: 'exception',
      error: error instanceof Error ? error.message : String(error),
      snapshot: await captureSnapshot(page, action),
    };
  }
}

async function main() {
  await mkdir(outputDir, { recursive: true });

  const browser = await chromium.launch({
    headless: process.env.PLAYWRIGHT_HEADLESS !== 'false',
  });

  const auth = await authenticateFrontdoor({ statePath: authStatePath, reportPath: authReportPath });
  const context = await createAuthenticatedContext(browser, auth, { statePath: auth.statePath });
  const page = await context.newPage();

  const results = [];
  const runtime = {
    consoleErrors: [],
    pageErrors: [],
    requestFailures: [],
    responseErrors: [],
  };

  page.on('console', (message) => {
    if (message.type() === 'error' && !shouldIgnoreConsoleError(message.text())) {
      runtime.consoleErrors.push(message.text());
    }
  });
  page.on('pageerror', (error) => runtime.pageErrors.push(error.message));
  page.on('requestfailed', (request) => {
    const failure = request.failure()?.errorText ?? 'unknown';
    if (!shouldIgnoreRequestFailure({ url: request.url(), failure })) {
      runtime.requestFailures.push({ url: request.url(), failure });
    }
  });
  page.on('response', (response) => {
    if (response.status() >= 400) {
      const candidate = { url: response.url(), status: response.status() };
      if (!shouldIgnoreResponseError(candidate)) {
        runtime.responseErrors.push(candidate);
      }
    }
  });

  try {
    for (const [route, name, expectedPath] of linkChecks) {
      process.stdout.write(`[live-uncovered-surface-action-sweep] START ${route} -> link:${name}\n`);
      const result = await runLinkCheck(page, route, name, expectedPath);
      process.stdout.write(
        `[live-uncovered-surface-action-sweep] DONE ${route} -> link:${name} ok=${result.ok}\n`,
      );
      results.push(result);
    }

    for (const [route, name, expectedPath] of buttonChecks) {
      process.stdout.write(`[live-uncovered-surface-action-sweep] START ${route} -> button:${name}\n`);
      const result = await runButtonCheck(page, route, name, expectedPath);
      process.stdout.write(
        `[live-uncovered-surface-action-sweep] DONE ${route} -> button:${name} ok=${result.ok}\n`,
      );
      results.push(result);
    }
  } finally {
    await page.close().catch(() => {});
    await context.close().catch(() => {});
    await browser.close().catch(() => {});
  }

  const failedActions = results.filter((result) => !result.ok);
  const report = {
    generatedAtUtc: new Date().toISOString(),
    baseUrl,
    actionCount: results.length,
    passedActionCount: results.length - failedActions.length,
    failedActionCount: failedActions.length,
    failedActions,
    results,
    runtime,
    runtimeIssueCount:
      runtime.consoleErrors.length + runtime.pageErrors.length + runtime.requestFailures.length + runtime.responseErrors.length,
  };

  await writeFile(outputPath, `${JSON.stringify(report, null, 2)}\n`, 'utf8');

  if (failedActions.length > 0 || report.runtimeIssueCount > 0) {
    process.exitCode = 1;
  }
}

await main();