import { test, expect, type Page } from '@playwright/test';
import { createRequire } from 'node:module';
import { fileURLToPath } from 'node:url';
import { dirname, resolve, join } from 'node:path';
import { tmpdir } from 'node:os';

// ── Local-auth shared-space E2E ───────────────────────────────────────────────
//
// Unlike ui/e2e/spaces.spec.ts (auth OFF => synthetic 'local' user, empty member
// list, /api/users/pickable === []), this harness boots the orchestrator with
// LOCAL LOGIN ENABLED (ui/playwright.auth.config.ts passes AAO_CONFIG). Real
// users sign in through the browser, so the member invite + avatar features —
// which depend on real identities (owner row, pickable users, space_members) —
// can finally be exercised end-to-end. They are unreachable in the auth-off suite.
//
// The bootstrap admin (admin@test.local, id='local', role admin) is auto-seeded
// at startup. Member users (alice/bob) are seeded into the SAME temp DB in
// beforeAll, using the BUILT Repository — by the time tests run the webServer is
// up, so schema + migrations exist.

const __dirname = dirname(fileURLToPath(import.meta.url));
const require = createRequire(import.meta.url);
// __dirname is <repo>/ui/e2e-auth → repo root is two levels up.
const repoRoot = resolve(__dirname, '..', '..');

// Same deterministic DB path the webServer uses (ui/playwright.auth.config.ts
// builds it identically: <tmpdir>/maestro-e2e-auth/e2e-auth.db). Computing it
// independently — rather than importing the config — keeps the spec decoupled
// from Playwright's config-resolution internals while guaranteeing both open
// the SAME SQLite file.
const DB_PATH = join(tmpdir(), 'maestro-e2e-auth', 'e2e-auth.db');

const ADMIN = { email: 'admin@test.local', password: 'AdminPass123!' };
const ALICE = { email: 'alice@test.local', password: 'AlicePass123!', name: 'Alice' };
const BOB = { email: 'bob@test.local', password: 'BobPass123!', name: 'Bob' };

// Space-OWNING admin used to create + manage shared spaces. NOTE: this is a
// SEPARATE seeded admin with a REAL uuid — NOT the bootstrap admin (whose id is
// literally 'local'). The space create handler nulls owner_id when the creator's
// id === 'local' (it treats that as the no-auth synthetic user), so a space
// created by the bootstrap admin has NO owner row and the avatar stack (members
// >= 2) can never form. A non-'local' owner is required to exercise the feature.
const MANAGER = { email: 'manager@test.local', password: 'ManagerPass123!', name: 'Manager' };

// Same benign-path tolerance as the auth-off suite, MINUS /api/auth/me (here it
// is mounted and returns 200). With auth on, the per-task console/browser probes
// and MCP/SSH/org probes still 401/404 benignly.
const BENIGN_PATHS = new Set([
  '/api/users/me/orgs',
  '/api/mcp/connections',
  '/api/mcp/servers',
  '/api/mcp/user-servers',
  '/api/ssh/connections',
]);
const BENIGN_ASSET = /\.(ico|png|svg|map|webmanifest|json)$/i;
const BENIGN_PATH_RE =
  /\/api\/local\/tasks\/\d+\/console\/status$|\/api\/local\/browser\/sessions\/task-session\/\d+$/;
// The space members GET is auth-gated. During the logout→login handoff (test 3),
// the header avatar query can fire ONE request after the cookie is cleared but
// before the new session lands → a transient 401. Only a 401 (unauthenticated)
// is benign here; a 403 (authenticated-but-forbidden) would be a real authz bug
// and is NOT excused. The avatar assertion still proves the eventual 200.
const SPACE_MEMBERS_RE = /\/api\/local\/spaces\/[^/]+\/members$/;

function trackFatalErrors(page: Page): string[] {
  const fatalErrors: string[] = [];
  page.on('pageerror', (err) => fatalErrors.push(`pageerror: ${err.message}`));
  page.on('response', (res) => {
    if (res.status() >= 400) {
      const { pathname } = new URL(res.url());
      const transientMembers401 = res.status() === 401 && SPACE_MEMBERS_RE.test(pathname);
      if (
        !BENIGN_ASSET.test(pathname) &&
        !BENIGN_PATHS.has(pathname) &&
        !BENIGN_PATH_RE.test(pathname) &&
        !transientMembers401
      ) {
        fatalErrors.push(`HTTP ${res.status()} ${res.url()}`);
      }
    }
  });
  return fatalErrors;
}

/** Log a real user in via the browser form. Success → 302 `/` → 302 `/ui` →
 *  SPA at `/ui/`. Failure → `/auth/login?error=…`. We wait for the redirect
 *  chain to settle off the login page, assert we landed on the SPA (not back on
 *  login with an error), then ensure the SPA route is loaded. */
async function login(page: Page, email: string, password: string) {
  await page.goto('/auth/login');
  await page.fill('input[name="email"]', email);
  await page.fill('input[name="password"]', password);
  await Promise.all([
    page.waitForURL(/\/ui(\/|$)/, { timeout: 15_000 }),
    page.click('button[type="submit"]'),
  ]);
  expect(page.url(), 'login should not bounce back to /auth/login').not.toContain('/auth/login');
}

async function logout(page: Page) {
  await page.goto('/auth/logout');
}

/** Open Spaces, create a case space with a unique title, select it, and return
 *  the detail locator + the resolved space id. Mirrors the auth-off helper. */
async function createAndOpenCaseSpace(page: Page, label: string) {
  await page.goto('/ui');
  await page.getByTestId('nav-spaces').click();
  const rail = page.getByTestId('space-rail');
  await expect(rail).toBeVisible();

  await page.getByTestId('create-space-btn').click();
  const titleInput = page.getByTestId('space-title-input');
  await expect(titleInput).toBeVisible();
  const caseTitle = `${label}-${Date.now()}`;
  await titleInput.fill(caseTitle);
  await page.getByTestId('space-form-submit').click();
  await expect(titleInput).toHaveCount(0);

  const caseRow = rail
    .locator('[data-testid="space-row"][data-space-kind="case"]')
    .filter({ hasText: caseTitle });
  await expect(caseRow).toBeVisible();
  const spaceId = await caseRow.getAttribute('data-space-id');
  expect(spaceId).toBeTruthy();
  await caseRow.click();

  const detail = page.getByTestId('space-detail');
  await expect(detail).toBeVisible();
  return { detail, caseTitle, rail, spaceId: spaceId as string };
}

/** Navigate the already-open space to 設定 → メンバー and return the panel. */
async function openMembersPanel(page: Page) {
  await page.getByTestId('space-tab-settings').click();
  await page.getByTestId('space-settings-nav-members').click();
  const panel = page.getByTestId('space-members-panel');
  await expect(panel).toBeVisible({ timeout: 15_000 });
  return panel;
}

/** Open the invite picker, pick `name` from the candidate list, and add them
 *  (role defaults to 編集者/editor). Asserts the real-user list shows (NOT the
 *  no-auth hint) before selecting. */
async function inviteMember(page: Page, name: string) {
  const panel = page.getByTestId('space-members-panel');
  await panel.getByTestId('space-member-invite').click();
  const picker = panel.getByTestId('space-member-picker');
  await expect(picker).toBeVisible({ timeout: 15_000 });
  // Real active-user pool → list, not the no-auth "認証を有効化すると…" hint.
  await expect(picker.getByText('認証を有効化するとワークスペースを共有できます。')).toHaveCount(0);
  // Candidate rows are buttons named "<initial> <name> <email>"; scope by role
  // + name regex so the name/email substrings don't trip strict mode.
  await picker.getByRole('button', { name: new RegExp(name) }).click();
  await picker.getByRole('button', { name: '追加' }).click();
}

test.beforeAll(() => {
  // The webServer is already up (Playwright waits on its url before running),
  // so the schema + migrations + bootstrap admin all exist. Seed members into
  // the SAME deterministic DB the server opened.
  const dbPath = DB_PATH;

  // Import the BUILT Repository (named export `class Repository`).
  const { Repository } = require(resolve(repoRoot, 'dist/db/repository.js')) as {
    Repository: new (dbPath: string) => {
      getUserByEmail: (email: string) => unknown;
      createLocalUser: (p: {
        email: string;
        password: string;
        name?: string;
        role: string;
        status: string;
      }) => unknown;
      close?: () => void;
    };
  };

  const repo = new Repository(dbPath);
  try {
    // Member users (role 'user') + a space-owning admin (role 'admin', real id).
    const seeds = [
      { ...ALICE, role: 'user' as const },
      { ...BOB, role: 'user' as const },
      { ...MANAGER, role: 'admin' as const },
    ];
    for (const u of seeds) {
      if (!repo.getUserByEmail(u.email)) {
        repo.createLocalUser({
          email: u.email,
          password: u.password,
          name: u.name,
          role: u.role,
          status: 'active',
        });
      }
    }
  } finally {
    repo.close?.();
  }
});

// 1. Sanity: auth is actually ON. The bootstrap admin logs in and /api/auth/me
//    reports an active admin. (Under auth-off this endpoint 404s.)
test('admin login + bootstrap: /api/auth/me reports active admin', async ({ page }) => {
  await login(page, ADMIN.email, ADMIN.password);
  const res = await page.request.get('/api/auth/me');
  expect(res.ok(), `auth/me status ${res.status()}`).toBeTruthy();
  const me = (await res.json()) as { email?: string; role?: string; status?: string };
  expect(me.role).toBe('admin');
  expect(me.email).toBe(ADMIN.email);
  expect(me.status).toBe('active');
});

// 2. THE avatar feature: a (non-'local') owning admin creates a case space,
//    invites alice (editor) via the real picker (NON-empty now that alice is a
//    real active user), and the header avatar stack appears (members >= 2:
//    owner manager + alice).
test('invite alice → member row + header avatars appear', async ({ page }) => {
  const fatalErrors = trackFatalErrors(page);

  await login(page, MANAGER.email, MANAGER.password);
  await createAndOpenCaseSpace(page, 'E2E共有');

  const panel = await openMembersPanel(page);

  // Before inviting anyone, only the owner (admin) is a member → no avatar stack.
  await expect(page.getByTestId('space-member-avatars')).toHaveCount(0);

  // Invite alice via the real picker (non-empty now that she is a real active
  // user; also asserts the no-auth hint is absent).
  await inviteMember(page, ALICE.name);

  // Alice now appears as a member row in the panel.
  const aliceRow = panel.locator('[data-testid^="space-member-"]').filter({ hasText: ALICE.name });
  await expect(aliceRow.first()).toBeVisible({ timeout: 15_000 });

  // AND the header avatar stack renders now that the space has >= 2 members.
  // We reload first: the header avatar query keys on ['spaceMembers'] while the
  // panel invalidates ['space-members'] — different keys, so the header does NOT
  // live-refetch after an in-session invite (a real, minor product cache-key
  // mismatch — see the harness report). A reload is what a user sees on the next
  // navigation; this asserts the actual rendered avatar feature, not a cache race.
  await page.reload();
  await expect(page.getByTestId('space-detail')).toBeVisible();
  await expect(page.getByTestId('space-member-avatars')).toBeVisible({ timeout: 15_000 });

  expect(fatalErrors, `fatal errors:\n${fatalErrors.join('\n')}`).toEqual([]);
});

// 3. Member collaboration: alice logs in, sees the shared space in her rail
//    (membership grants visibility), opens it, and the avatar stack renders for
//    her too. She is NOT admin and not the owner, so she gets read-only member UI.
test('alice sees + opens the shared space, avatars render', async ({ page }) => {
  const fatalErrors = trackFatalErrors(page);

  // The owning admin creates a fresh shared space and invites alice.
  await login(page, MANAGER.email, MANAGER.password);
  const { spaceId } = await createAndOpenCaseSpace(page, 'E2E協働');
  const panel = await openMembersPanel(page);
  await inviteMember(page, ALICE.name);
  const aliceRow = panel.locator('[data-testid^="space-member-"]').filter({ hasText: ALICE.name });
  await expect(aliceRow.first()).toBeVisible({ timeout: 15_000 });

  // Switch to alice.
  await logout(page);
  await login(page, ALICE.email, ALICE.password);

  // The shared space is visible in alice's rail (space_members membership).
  await page.getByTestId('nav-spaces').click();
  const rail = page.getByTestId('space-rail');
  await expect(rail).toBeVisible();
  const sharedRow = rail.locator(`[data-testid="space-row"][data-space-id="${spaceId}"]`);
  await expect(sharedRow).toBeVisible({ timeout: 15_000 });

  // She can open it (membership grants access — no 403).
  await sharedRow.click();
  await expect(page.getByTestId('space-detail')).toBeVisible();

  // The avatar stack renders for her as well (>= 2 members).
  await expect(page.getByTestId('space-member-avatars')).toBeVisible({ timeout: 15_000 });

  expect(fatalErrors, `fatal errors:\n${fatalErrors.join('\n')}`).toEqual([]);
});

// 4. Role + remove: the owning admin changes alice's role to viewer, then
//    removes her. The member row disappears and the avatar stack collapses back
//    (owner only => members < 2).
test('admin changes alice role then removes her', async ({ page }) => {
  const fatalErrors = trackFatalErrors(page);

  await login(page, MANAGER.email, MANAGER.password);
  await createAndOpenCaseSpace(page, 'E2E権限');
  let panel = await openMembersPanel(page);
  await inviteMember(page, ALICE.name);

  // Resolve alice's member row + her userId from the row testid suffix
  // (`space-member-{userId}`; the row wrapper is the first prefix match).
  const aliceRow = () =>
    page.getByTestId('space-members-panel')
      .locator('div[data-testid^="space-member-"]')
      .filter({ hasText: ALICE.name })
      .first();
  await expect(aliceRow()).toBeVisible({ timeout: 15_000 });
  const testid = await aliceRow().getAttribute('data-testid');
  const aliceId = (testid ?? '').replace(/^space-member-/, '');
  expect(aliceId).toBeTruthy();

  // Avatars present while she is a member (reload so the header's ['spaceMembers']
  // query picks up the invite — see the cache-key note in test 2 / the report).
  await page.reload();
  await expect(page.getByTestId('space-detail')).toBeVisible();
  await expect(page.getByTestId('space-member-avatars')).toBeVisible({ timeout: 15_000 });

  // Re-open the panel (reload reset the tab) and change alice editor → viewer.
  panel = await openMembersPanel(page);
  const roleSelect = panel.getByTestId(`space-member-role-${aliceId}`);
  await roleSelect.selectOption('viewer');
  await expect(roleSelect).toHaveValue('viewer');

  // Remove her (auto-accept the confirm dialog). The panel's own query
  // invalidates on the same key, so her row disappears in-session.
  page.once('dialog', (d) => d.accept());
  await panel.getByTestId(`space-member-remove-${aliceId}`).click();
  await expect(panel.getByTestId(`space-member-${aliceId}`)).toHaveCount(0, { timeout: 15_000 });

  // After a reload the header avatar stack collapses (owner only => < 2 members).
  await page.reload();
  await expect(page.getByTestId('space-detail')).toBeVisible();
  await expect(page.getByTestId('space-member-avatars')).toHaveCount(0, { timeout: 15_000 });

  expect(fatalErrors, `fatal errors:\n${fatalErrors.join('\n')}`).toEqual([]);
});