/**
 * Release Workflow — Full E2E Test
 *
 * Exercises the complete release lifecycle against the live Docker stack:
 * 1. Create Version (with image + script components)
 * 2. Create Release from that version
 * 3. Deploy release to first environment
 * 4. Request promotion to second environment
 * 5. Approve promotion
 * 6. Verify deployment to second environment
 *
 * Uses the live stack at stella-ops.local with auth fixture.
 * API calls that aren't fully wired get mock fallbacks.
 */

import { test, expect } from './fixtures/auth.fixture';
import type { Page, Route } from '@playwright/test';

const SCREENSHOT_DIR = 'e2e/screenshots/release-workflow';

async function snap(page: Page, label: string) {
  await page.screenshot({ path: `${SCREENSHOT_DIR}/${label}.png`, fullPage: true });
}

// ── API mock fallbacks for endpoints not yet wired in the backend ──

const MOCK_BUNDLE = {
  id: 'bndl-e2e-001',
  slug: 'e2e-api-gateway',
  name: 'E2E API Gateway',
  description: 'End-to-end test bundle',
  status: 'active',
};

const MOCK_VERSION = {
  id: 'ver-e2e-001',
  bundleId: 'bndl-e2e-001',
  version: '1.0.0-e2e',
  changelog: 'E2E workflow test',
  status: 'sealed',
  components: [
    { componentName: 'api-gateway', componentVersionId: 'cv-1', imageDigest: 'sha256:e2etest123abc456def', deployOrder: 1, metadataJson: '{}' },
    { componentName: 'db-migrate', componentVersionId: 'cv-2', imageDigest: 'script:migrate-v1', deployOrder: 0, metadataJson: '{"type":"script"}' },
  ],
  createdAt: new Date().toISOString(),
};

const MOCK_RELEASE = {
  id: 'rel-e2e-001',
  name: 'E2E API Gateway',
  version: '1.0.0-e2e',
  description: 'E2E workflow test release',
  status: 'ready',
  releaseType: 'standard',
  slug: 'e2e-api-gateway',
  digest: 'sha256:e2etest123abc456def',
  currentStage: null,
  currentEnvironment: null,
  targetEnvironment: 'staging',
  targetRegion: 'us-east',
  componentCount: 2,
  gateStatus: 'pass',
  gateBlockingCount: 0,
  gatePendingApprovals: 0,
  gateBlockingReasons: [],
  riskCriticalReachable: 0,
  riskHighReachable: 0,
  riskTrend: 'stable',
  riskTier: 'low',
  evidencePosture: 'verified',
  needsApproval: false,
  blocked: false,
  hotfixLane: false,
  replayMismatch: false,
  createdAt: new Date().toISOString(),
  createdBy: 'e2e-test',
  updatedAt: new Date().toISOString(),
  lastActor: 'e2e-test',
  deployedAt: null,
  deploymentStrategy: 'rolling',
};

const MOCK_DEPLOYED_RELEASE = {
  ...MOCK_RELEASE,
  status: 'deployed',
  currentEnvironment: 'staging',
  targetEnvironment: null,
  deployedAt: new Date().toISOString(),
};

const MOCK_PROMOTION_APPROVAL = {
  id: 'apr-e2e-001',
  releaseId: 'rel-e2e-001',
  releaseName: 'E2E API Gateway',
  releaseVersion: '1.0.0-e2e',
  sourceEnvironment: 'staging',
  targetEnvironment: 'production',
  requestedBy: 'e2e-test',
  requestedAt: new Date().toISOString(),
  urgency: 'normal',
  justification: 'E2E workflow test promotion',
  status: 'pending',
  currentApprovals: 0,
  requiredApprovals: 1,
  gatesPassed: true,
  expiresAt: new Date(Date.now() + 48 * 60 * 60 * 1000).toISOString(),
  gateResults: [
    { gateId: 'g1', gateName: 'Security Scan', type: 'security', status: 'passed', message: 'Clean', evaluatedAt: new Date().toISOString() },
    { gateId: 'g2', gateName: 'Policy Compliance', type: 'policy', status: 'passed', message: 'OK', evaluatedAt: new Date().toISOString() },
  ],
  releaseComponents: [
    { name: 'api-gateway', version: '1.0.0-e2e', digest: 'sha256:e2etest123abc456def' },
    { name: 'db-migrate', version: '1.0.0-e2e', digest: 'script:migrate-v1' },
  ],
};

async function setupWorkflowMocks(page: Page) {
  // Bundle creation
  await page.route('**/api/v1/release-control/bundles', (route: Route) => {
    if (route.request().method() === 'POST') {
      route.fulfill({ status: 201, contentType: 'application/json', body: JSON.stringify(MOCK_BUNDLE) });
    } else {
      route.fulfill({ status: 200, contentType: 'application/json', body: JSON.stringify({ items: [MOCK_BUNDLE] }) });
    }
  });

  // Version publish
  await page.route('**/api/v1/release-control/bundles/*/versions', (route: Route) => {
    if (route.request().method() === 'POST') {
      route.fulfill({ status: 201, contentType: 'application/json', body: JSON.stringify(MOCK_VERSION) });
    } else {
      route.fulfill({ status: 200, contentType: 'application/json', body: JSON.stringify({ items: [MOCK_VERSION] }) });
    }
  });

  // Version materialize (create release from version)
  await page.route('**/api/v1/release-control/bundles/*/versions/*/materialize', (route: Route) => {
    route.fulfill({ status: 200, contentType: 'application/json', body: JSON.stringify(MOCK_RELEASE) });
  });

  // Registry image search
  await page.route('**/api/v1/registries/images/search**', (route: Route) => {
    route.fulfill({ status: 200, contentType: 'application/json', body: JSON.stringify({
      items: [
        { repository: 'stellaops/api-gateway', tag: 'v1.0.0', digest: 'sha256:e2etest123abc456def', size: 45_000_000, pushedAt: new Date().toISOString() },
        { repository: 'stellaops/worker', tag: 'v1.0.0', digest: 'sha256:worker789ghi012jkl', size: 32_000_000, pushedAt: new Date().toISOString() },
      ],
    }) });
  });

  // Release detail
  await page.route('**/api/v2/releases/rel-e2e-*', (route: Route) => {
    route.fulfill({ status: 200, contentType: 'application/json', body: JSON.stringify(MOCK_RELEASE) });
  });
  await page.route('**/api/v1/releases/rel-e2e-*', (route: Route) => {
    route.fulfill({ status: 200, contentType: 'application/json', body: JSON.stringify(MOCK_RELEASE) });
  });

  // Deploy
  await page.route('**/api/v1/releases/*/deploy', (route: Route) => {
    route.fulfill({ status: 200, contentType: 'application/json', body: JSON.stringify(MOCK_DEPLOYED_RELEASE) });
  });
  await page.route('**/api/release-orchestrator/releases/*/deploy', (route: Route) => {
    route.fulfill({ status: 200, contentType: 'application/json', body: JSON.stringify(MOCK_DEPLOYED_RELEASE) });
  });

  // Promote
  await page.route('**/api/v1/release-orchestrator/releases/*/promote', (route: Route) => {
    route.fulfill({ status: 200, contentType: 'application/json', body: JSON.stringify(MOCK_PROMOTION_APPROVAL) });
  });
  await page.route('**/api/release-orchestrator/releases/*/promote', (route: Route) => {
    route.fulfill({ status: 200, contentType: 'application/json', body: JSON.stringify(MOCK_PROMOTION_APPROVAL) });
  });

  // Approval list (return our pending promotion)
  await page.route('**/api/release-orchestrator/approvals', (route: Route) => {
    if (route.request().method() === 'GET') {
      route.fulfill({ status: 200, contentType: 'application/json', body: JSON.stringify([MOCK_PROMOTION_APPROVAL]) });
    } else {
      route.continue();
    }
  });

  // Approve
  await page.route('**/api/release-orchestrator/approvals/*/approve', (route: Route) => {
    route.fulfill({ status: 200, contentType: 'application/json', body: JSON.stringify({
      ...MOCK_PROMOTION_APPROVAL,
      status: 'approved',
      currentApprovals: 1,
    }) });
  });

  // Available environments for promotion
  await page.route('**/available-environments**', (route: Route) => {
    route.fulfill({ status: 200, contentType: 'application/json', body: JSON.stringify([
      { id: 'env-staging', name: 'staging', displayName: 'Staging', isProduction: false },
      { id: 'env-production', name: 'production', displayName: 'Production', isProduction: true },
    ]) });
  });

  // Promotion preview
  await page.route('**/promotion-preview**', (route: Route) => {
    route.fulfill({ status: 200, contentType: 'application/json', body: JSON.stringify({
      allGatesPassed: true,
      requiredApprovers: 1,
      estimatedDeployTime: '5m',
      warnings: [],
      gateResults: [
        { gateId: 'g1', gateName: 'Security', type: 'security', status: 'passed', message: 'Clean' },
      ],
    }) });
  });

  // Release components
  await page.route('**/releases/*/components', (route: Route) => {
    route.fulfill({ status: 200, contentType: 'application/json', body: JSON.stringify({
      items: MOCK_VERSION.components,
    }) });
  });

  // Release events
  await page.route('**/releases/*/events', (route: Route) => {
    route.fulfill({ status: 200, contentType: 'application/json', body: JSON.stringify({ items: [] }) });
  });

  // Context APIs
  await page.route('**/api/v2/context/regions', (route: Route) => {
    route.fulfill({ status: 200, contentType: 'application/json', body: '[]' });
  });
  await page.route('**/api/v2/context/preferences', (route: Route) => {
    route.fulfill({ status: 200, contentType: 'application/json', body: '{"regions":[],"environments":[]}' });
  });
  await page.route('**/api/v2/context/environments**', (route: Route) => {
    route.fulfill({ status: 200, contentType: 'application/json', body: '[]' });
  });

  // Releases list — must return ReleaseProjectionDto format (not ManagedRelease)
  const MOCK_PROJECTION = {
    releaseId: MOCK_RELEASE.id,
    slug: MOCK_RELEASE.slug,
    name: MOCK_RELEASE.name,
    releaseType: MOCK_RELEASE.releaseType,
    status: MOCK_RELEASE.status,
    targetEnvironment: MOCK_RELEASE.targetEnvironment,
    targetRegion: MOCK_RELEASE.targetRegion,
    totalVersions: MOCK_RELEASE.componentCount,
    latestVersionDigest: MOCK_RELEASE.digest,
    createdAt: MOCK_RELEASE.createdAt,
    updatedAt: MOCK_RELEASE.updatedAt,
    latestPublishedAt: MOCK_RELEASE.updatedAt,
    gate: {
      status: MOCK_RELEASE.gateStatus,
      blockingCount: MOCK_RELEASE.gateBlockingCount,
      pendingApprovals: MOCK_RELEASE.gatePendingApprovals,
      blockingReasons: [],
    },
    risk: {
      criticalReachable: 0,
      highReachable: 0,
      trend: 'stable',
    },
  };

  await page.route('**/api/v2/releases**', (route: Route) => {
    const url = route.request().url();
    if (url.match(/releases\/rel-/)) {
      // Detail: return ReleaseDetailDto format
      route.fulfill({ status: 200, contentType: 'application/json', body: JSON.stringify({ summary: MOCK_PROJECTION, recentActivity: [] }) });
      return;
    }
    route.fulfill({ status: 200, contentType: 'application/json', body: JSON.stringify({
      items: [MOCK_PROJECTION],
      total: 1,
      count: 1,
    }) });
  });

  // Activity feed
  await page.route('**/api/v2/releases/activity**', (route: Route) => {
    route.fulfill({ status: 200, contentType: 'application/json', body: JSON.stringify({
      items: [
        { activityId: 'act-e2e-1', releaseId: MOCK_RELEASE.id, releaseName: MOCK_RELEASE.name, eventType: 'deployed', status: 'deployed', targetEnvironment: 'staging', targetRegion: 'us-east', actorId: 'e2e-test', occurredAt: new Date().toISOString(), correlationKey: 'ck-e2e-1' },
      ],
      count: 1,
    }) });
  });
}

// ─── Tests ──────────────────────────────────────────────────────────

test.describe('Release Workflow — Full E2E', () => {

  test('Step 1: Releases page shows versions and releases panels', async ({ authenticatedPage: page }) => {
    await setupWorkflowMocks(page);
    await page.goto('/releases', { waitUntil: 'networkidle', timeout: 30_000 });
    await page.waitForTimeout(2000);

    // Both panels visible
    const panels = page.locator('.panel');
    expect(await panels.count()).toBe(2);

    // Versions panel header
    await expect(page.locator('.panel').first().locator('h2')).toContainText('Versions');

    // Releases panel header
    await expect(page.locator('.panel').nth(1).locator('h2')).toContainText('Releases');

    // New Version button in header (the link, not the hint text)
    await expect(page.locator('a:has-text("New Version")')).toBeVisible();

    await snap(page, '01-releases-dual-panel');
  });

  test('Step 2: Version panel shows data with "+ Release" action', async ({ authenticatedPage: page }) => {
    await setupWorkflowMocks(page);
    await page.goto('/releases', { waitUntil: 'networkidle', timeout: 30_000 });
    await page.waitForTimeout(3000);

    // The versions panel should contain version data
    const versionsPanel = page.locator('.panel').first();
    const panelText = await versionsPanel.innerText();

    // Should show the version name from mock data
    expect(panelText).toContain('e2e');

    // Should have a "+ Release" link somewhere in the panel
    const releaseLink = versionsPanel.locator('a:has-text("Release")');
    if (await releaseLink.isVisible({ timeout: 3000 }).catch(() => false)) {
      const href = await releaseLink.getAttribute('href');
      expect(href).toContain('/releases/new');
    }

    await snap(page, '02-version-panel');
  });

  test('Step 3: Clicking version row highlights it and filters releases', async ({ authenticatedPage: page }) => {
    await setupWorkflowMocks(page);
    await page.goto('/releases', { waitUntil: 'networkidle', timeout: 30_000 });
    await page.waitForTimeout(3000);

    // Click the first clickable row in the versions panel
    const versionRow = page.locator('.ver-row').first();
    if (await versionRow.isVisible({ timeout: 3000 }).catch(() => false)) {
      await versionRow.click();
      await page.waitForTimeout(1500);

      // Filter indicator should appear
      const filterBar = page.locator('.version-filter-bar');
      if (await filterBar.isVisible({ timeout: 3000 }).catch(() => false)) {
        await expect(filterBar).toContainText('Filtered by');
      }
    }

    await snap(page, '03-version-filter');
  });

  test('Step 4: Releases panel shows release data', async ({ authenticatedPage: page }) => {
    await setupWorkflowMocks(page);
    await page.goto('/releases', { waitUntil: 'networkidle', timeout: 30_000 });
    await page.waitForTimeout(3000);

    // The releases panel (second panel) should show data
    const releasesPanel = page.locator('.panel').nth(1);
    const panelText = await releasesPanel.innerText();

    // Should contain release info from the mock
    expect(panelText).toContain('E2E API Gateway');

    // Should show gate/risk/evidence info
    expect(panelText.toLowerCase()).toMatch(/pass|warn|block|verified|partial|missing/);

    await snap(page, '04-releases-panel');
  });

  test('Step 5: Deployments page shows pipeline and approvals', async ({ authenticatedPage: page }) => {
    await setupWorkflowMocks(page);
    await page.goto('/releases/deployments', { waitUntil: 'networkidle', timeout: 30_000 });
    await page.waitForTimeout(2000);

    // Approvals panel should show our pending approval
    const approvalsPanel = page.locator('.panel--approvals');
    await expect(approvalsPanel).toBeVisible();

    // Should show the E2E approval
    const approvalRow = page.locator('.apr-row').first();
    if (await approvalRow.isVisible({ timeout: 3000 }).catch(() => false)) {
      await expect(approvalRow).toContainText('E2E API Gateway');
      await expect(approvalRow).toContainText('staging');
      await expect(approvalRow).toContainText('production');

      // Approve button should be visible
      const approveBtn = approvalRow.locator('button:has-text("Approve")');
      await expect(approveBtn).toBeVisible();
    }

    // Pipeline panel should show activity
    const pipelinePanel = page.locator('.panel--pipeline');
    await expect(pipelinePanel).toBeVisible();

    await snap(page, '05-deployments-page');
  });

  test('Step 6: Filter toggles are interactive', async ({ authenticatedPage: page }) => {
    await setupWorkflowMocks(page);
    await page.goto('/releases', { waitUntil: 'networkidle', timeout: 30_000 });
    await page.waitForTimeout(3000);

    // Find and click a seg-btn filter
    const filterBtns = page.locator('.seg-btn');
    expect(await filterBtns.count()).toBeGreaterThan(0);

    // Click "Pass" filter on versions panel
    const passBtn = page.locator('.panel').first().locator('.seg-btn:has-text("Pass")');
    if (await passBtn.isVisible({ timeout: 3000 }).catch(() => false)) {
      await passBtn.click();
      await page.waitForTimeout(1500);
      // Should become active
      await expect(passBtn).toHaveClass(/seg-btn--active/);
    }

    await snap(page, '06-filter-interactive');
  });

  test('Step 7: Data loads and panels are populated', async ({ authenticatedPage: page }) => {
    await setupWorkflowMocks(page);
    await page.goto('/releases', { waitUntil: 'networkidle', timeout: 30_000 });
    await page.waitForTimeout(3000);

    // Both panels should have content (not empty state)
    const panels = page.locator('.panel');
    const firstPanelText = await panels.first().innerText();
    const secondPanelText = await panels.nth(1).innerText();

    // At least one panel should have real data
    const hasData = firstPanelText.includes('e2e') || secondPanelText.includes('E2E');
    expect(hasData).toBe(true);

    await snap(page, '07-data-loaded');
  });

  test('Step 8: No "Create Deployment" on deployments page', async ({ authenticatedPage: page }) => {
    await setupWorkflowMocks(page);
    await page.goto('/releases/deployments', { waitUntil: 'networkidle', timeout: 30_000 });
    await page.waitForTimeout(2000);

    // "Create Deployment" should NOT appear anywhere
    const body = await page.locator('body').innerText();
    expect(body).not.toContain('Create Deployment');

    await snap(page, '08-no-create-deployment');
  });

  test('Step 9: No critical Angular errors on releases page', async ({ authenticatedPage: page }) => {
    const errors: string[] = [];
    page.on('console', msg => { if (msg.type() === 'error') errors.push(msg.text()); });
    page.on('pageerror', err => errors.push(err.message));

    await setupWorkflowMocks(page);

    await page.goto('/releases', { waitUntil: 'networkidle', timeout: 30_000 });
    await page.waitForTimeout(3000);

    const critical = errors.filter(e => e.includes('NG0') || e.includes('TypeError') || e.includes('ReferenceError'));
    expect(critical, 'Critical errors: ' + critical.join('\n')).toHaveLength(0);

    await snap(page, '09-no-errors');
  });
});