/**
 * @fileoverview Route tests for /api/clis (docs/cli-enable-disable-plan.md, Phases 2-5).
 * Mirrors the admin-gating test shape used for other admin/settings surfaces (see
 * test/routes/search-routes.test.ts's multi-user block).
 *
 * ⚠️ test/setup.ts gives the whole FILE one temp HOME, not one per `it()` — a write in
 * one test is visible to every test declared after it. Phase 3-5 tests therefore each
 * clean up what they create (delete a custom entry, restore a toggled stock flag) so
 * later tests, including the Phase 2 "every entry is stock" assumption above, still hold.
 *
 * Port: N/A (app.inject(), no live server).
 */
import { afterEach, beforeEach, describe, expect, it, vi } from 'vitest';
import { EventEmitter } from 'node:events';
import { chmodSync, mkdirSync, readFileSync, rmSync, writeFileSync, statSync } from 'node:fs';
import { dirname } from 'node:path';
import { createRouteTestHarness } from './_route-test-utils.js';
import { installEnv, registerCliRegistryRoutes, type CliListItem } from '../../src/web/routes/cli-registry-routes.js';
import { SETTINGS_PATH } from '../../src/web/route-helpers.js';
import { CreateSessionSchema } from '../../src/web/schemas.js';
import { buildSpawnCommandFromRegistry } from '../../src/session-cli-registry-bridge.js';
import { defaultRemoteCommandForMode } from '../../src/remote-hosts.js';
import { defaultDockerCommandForMode } from '../../src/docker-hosts.js';
import {
  getCli,
  registryFilePath,
  reloadCliRegistry,
  resolveInstallCommandForPlatform,
} from '../../src/config/cli-registry/registry.js';

// The install route spawns a real shell command, so `spawn` is replaced with a fake
// child (every other child_process export stays real). The two cache invalidators are
// wrapped pass-through spies: the real invalidation still runs, and the tests can see
// WHICH binaries and id each route forgot.
const { spawnMock, invalidateBinariesSpy, invalidateIdSpy } = vi.hoisted(() => ({
  spawnMock: vi.fn(),
  invalidateBinariesSpy: vi.fn(),
  invalidateIdSpy: vi.fn(),
}));
vi.mock('node:child_process', async (importOriginal) => {
  const actual = await importOriginal<typeof import('node:child_process')>();
  return { ...actual, spawn: spawnMock };
});
vi.mock('../../src/utils/cli-executable-resolver.js', async (importOriginal) => {
  const actual = await importOriginal<typeof import('../../src/utils/cli-executable-resolver.js')>();
  return {
    ...actual,
    invalidateCliExecutableResolvers: (binaries: readonly string[]) => {
      invalidateBinariesSpy([...binaries]);
      actual.invalidateCliExecutableResolvers(binaries);
    },
  };
});
vi.mock('../../src/utils/cli-resolver.js', async (importOriginal) => {
  const actual = await importOriginal<typeof import('../../src/utils/cli-resolver.js')>();
  return {
    ...actual,
    invalidateCliResolverCache: (id?: string) => {
      invalidateIdSpy(id);
      actual.invalidateCliResolverCache(id);
    },
  };
});

/** A spawned install that prints one line and exits with `code` on the next tick. */
function fakeInstallChild(code: number): EventEmitter {
  const child = new EventEmitter() as EventEmitter & Record<string, unknown>;
  const stdout = new EventEmitter();
  child.stdout = stdout;
  child.stderr = new EventEmitter();
  child.kill = vi.fn();
  setImmediate(() => {
    stdout.emit('data', Buffer.from(code === 0 ? 'installed\n' : 'boom\n'));
    child.emit('close', code);
  });
  return child;
}

/** Every write endpoint requires this on; toggled per-test by writing settings.json directly. */
function enableCliManagement(): void {
  mkdirSync(dirname(SETTINGS_PATH), { recursive: true });
  writeFileSync(SETTINGS_PATH, JSON.stringify({ cliManagementEnabled: true }));
}

/**
 * The inverse, and load-bearing for every "off" test below: settings.json is shared by
 * the whole FILE (one temp HOME, not one per `it()`), so a "should be rejected while off"
 * test cannot assume the flag started false — an EARLIER test may have called
 * `enableCliManagement()` and left it on.
 */
function disableCliManagement(): void {
  mkdirSync(dirname(SETTINGS_PATH), { recursive: true });
  writeFileSync(SETTINGS_PATH, JSON.stringify({ cliManagementEnabled: false }));
}

describe('GET /api/clis', () => {
  afterEach(() => {
    delete process.env.CODEMAN_MULTIUSER;
  });

  it('single-user mode: returns every registry entry, disabled stock CLIs included', async () => {
    const { app } = await createRouteTestHarness(registerCliRegistryRoutes);
    const res = await app.inject({ method: 'GET', url: '/api/clis' });
    expect(res.statusCode).toBe(200);
    const body = res.json() as { success: true; data: CliListItem[] };
    expect(body.success).toBe(true);
    const ids = body.data.map((c) => c.id);
    expect(ids).toContain('claude');
    expect(ids).toContain('shell');
    expect(ids.length).toBeGreaterThanOrEqual(9);
  });

  it('every item has the expected shape and excludes spawn-time fields', async () => {
    const { app } = await createRouteTestHarness(registerCliRegistryRoutes);
    const res = await app.inject({ method: 'GET', url: '/api/clis' });
    const body = res.json() as { success: true; data: CliListItem[] };
    for (const cli of body.data) {
      expect(typeof cli.id).toBe('string');
      expect(typeof cli.label).toBe('string');
      expect(typeof cli.shortBadge).toBe('string');
      expect(typeof cli.order).toBe('number');
      expect(['agent', 'shell']).toContain(cli.kind);
      expect(typeof cli.enabled).toBe('boolean');
      expect(typeof cli.stock).toBe('boolean');
      expect(typeof cli.installed).toBe('boolean');
      expect(cli).not.toHaveProperty('launch');
      expect(cli).not.toHaveProperty('env');
      expect(cli).not.toHaveProperty('capabilities');
      expect(cli).not.toHaveProperty('overlays');
      expect(cli).not.toHaveProperty('discovery');
    }
  });

  it('every entry is stock: true (no custom entries exist before Phase 5)', async () => {
    const { app } = await createRouteTestHarness(registerCliRegistryRoutes);
    const res = await app.inject({ method: 'GET', url: '/api/clis' });
    const body = res.json() as { success: true; data: CliListItem[] };
    expect(body.data.every((c) => c.stock === true)).toBe(true);
  });

  it('multi-user mode: an admin sees the full list', async () => {
    process.env.CODEMAN_MULTIUSER = '1';
    const { app } = await createRouteTestHarness(registerCliRegistryRoutes, {
      authUser: { username: 'root', role: 'admin' },
    });
    const res = await app.inject({ method: 'GET', url: '/api/clis' });
    const body = res.json() as { success: true; data: CliListItem[] };
    expect(body.data.length).toBeGreaterThanOrEqual(9);
  });

  it('multi-user mode: a non-admin sees an empty list, not a 403', async () => {
    process.env.CODEMAN_MULTIUSER = '1';
    const { app } = await createRouteTestHarness(registerCliRegistryRoutes, {
      authUser: { username: 'bob', role: 'user' },
    });
    const res = await app.inject({ method: 'GET', url: '/api/clis' });
    expect(res.statusCode).toBe(200);
    const body = res.json() as { success: true; data: CliListItem[] };
    expect(body.data).toEqual([]);
  });
});

describe('PUT /api/clis/:id (Phase 3: enable/disable)', () => {
  afterEach(() => {
    delete process.env.CODEMAN_MULTIUSER;
  });

  it('rejects when cliManagementEnabled is off — no settings.json write at all', async () => {
    const { app } = await createRouteTestHarness(registerCliRegistryRoutes);
    const res = await app.inject({ method: 'PUT', url: '/api/clis/grok', payload: { enabled: false } });
    expect(res.statusCode).toBe(403);
    const body = res.json() as { errorCode: string };
    expect(body.errorCode).toBe('FORBIDDEN');
  });

  it('toggles a stock CLI off then back on, visible with no reload needed', async () => {
    enableCliManagement();
    const { app } = await createRouteTestHarness(registerCliRegistryRoutes);
    const off = await app.inject({ method: 'PUT', url: '/api/clis/grok', payload: { enabled: false } });
    expect(off.statusCode).toBe(200);
    const afterOff = await app.inject({ method: 'GET', url: '/api/clis' });
    const grokOff = (afterOff.json() as { data: CliListItem[] }).data.find((c) => c.id === 'grok');
    expect(grokOff?.enabled).toBe(false);

    const on = await app.inject({ method: 'PUT', url: '/api/clis/grok', payload: { enabled: true } });
    expect(on.statusCode).toBe(200);
    const afterOn = await app.inject({ method: 'GET', url: '/api/clis' });
    const grokOn = (afterOn.json() as { data: CliListItem[] }).data.find((c) => c.id === 'grok');
    expect(grokOn?.enabled).toBe(true);
  });

  it('rejects disabling shell, changes nothing', async () => {
    enableCliManagement();
    const { app } = await createRouteTestHarness(registerCliRegistryRoutes);
    const res = await app.inject({ method: 'PUT', url: '/api/clis/shell', payload: { enabled: false } });
    // errorCode, not statusCode: this branch returns bare createErrorResponse()
    // and relies on server.ts's global preSerialization hook to map it to 400,
    // which the lightweight test harness does not register — same convention
    // as test/routes/custom-model-routes.test.ts's equivalent checks.
    expect(res.json().errorCode).toBe('INVALID_INPUT');
    const list = await app.inject({ method: 'GET', url: '/api/clis' });
    const entry = (list.json() as { data: CliListItem[] }).data.find((c) => c.id === 'shell');
    expect(entry?.enabled).toBe(true);
  });

  it('allows disabling claude — only shell keeps the hard guarantee (revised 2026-09-23)', async () => {
    enableCliManagement();
    const { app } = await createRouteTestHarness(registerCliRegistryRoutes);
    const off = await app.inject({ method: 'PUT', url: '/api/clis/claude', payload: { enabled: false } });
    expect(off.statusCode).toBe(200);
    const list = await app.inject({ method: 'GET', url: '/api/clis' });
    const entry = (list.json() as { data: CliListItem[] }).data.find((c) => c.id === 'claude');
    expect(entry?.enabled).toBe(false);
    // Restore for any later test in this file that assumes claude's stock default.
    await app.inject({ method: 'PUT', url: '/api/clis/claude', payload: { enabled: true } });
  });

  it('404s an id that does not exist, never creating one', async () => {
    enableCliManagement();
    const { app } = await createRouteTestHarness(registerCliRegistryRoutes);
    const res = await app.inject({ method: 'PUT', url: '/api/clis/nonexistent-id', payload: { enabled: true } });
    expect(res.json().errorCode).toBe('NOT_FOUND');
    const list = await app.inject({ method: 'GET', url: '/api/clis' });
    expect((list.json() as { data: CliListItem[] }).data.some((c) => c.id === 'nonexistent-id')).toBe(false);
  });

  it('multi-user: non-admin is rejected before the write', async () => {
    enableCliManagement();
    process.env.CODEMAN_MULTIUSER = '1';
    const { app } = await createRouteTestHarness(registerCliRegistryRoutes, {
      authUser: { username: 'bob', role: 'user' },
    });
    const res = await app.inject({ method: 'PUT', url: '/api/clis/grok', payload: { enabled: false } });
    expect(res.statusCode).toBe(403);
  });

  it('preserves an unrelated existing override key on a stock entry when toggling enabled', async () => {
    enableCliManagement();
    // grok's real accent is #f43f5e (stock.ts); overriding it here first proves
    // the enabled-only write is a MERGE, not a replace, of that id's override.
    mkdirSync(dirname(registryFilePath()), { recursive: true });
    writeFileSync(registryFilePath(), JSON.stringify({ schemaVersion: 1, clis: { grok: { accent: '#123456' } } }), {
      mode: 0o600,
    });
    const { app } = await createRouteTestHarness(registerCliRegistryRoutes);
    const res = await app.inject({ method: 'PUT', url: '/api/clis/grok', payload: { enabled: false } });
    expect(res.statusCode).toBe(200);
    // GET /api/clis deliberately excludes `accent` (Phase 2's own response
    // shape), so verify the merge server-side through the registry itself.
    const grok = getCli('grok');
    expect(grok?.enabled).toBe(false);
    expect(grok?.accent).toBe('#123456');
    // Restore for any later test in this file that assumes grok's stock default.
    await app.inject({ method: 'PUT', url: '/api/clis/grok', payload: { enabled: true } });
  });

  it('writes clis.json mode 0600 on POSIX', async () => {
    enableCliManagement();
    const { app } = await createRouteTestHarness(registerCliRegistryRoutes);
    await app.inject({ method: 'PUT', url: '/api/clis/grok', payload: { enabled: true } });
    if (process.platform !== 'win32') {
      const mode = statSync(registryFilePath()).mode & 0o777;
      expect(mode).toBe(0o600);
    }
  });
});

describe('POST /api/clis/:id/install (Phase 4)', () => {
  afterEach(() => {
    delete process.env.CODEMAN_MULTIUSER;
  });

  it('rejects when cliManagementEnabled is off', async () => {
    disableCliManagement();
    const { app } = await createRouteTestHarness(registerCliRegistryRoutes);
    const res = await app.inject({ method: 'POST', url: '/api/clis/grok/install' });
    expect(res.statusCode).toBe(403);
  });

  it('rejects a custom entry id — Decision 3: a custom install command is never executed', async () => {
    enableCliManagement();
    const { app } = await createRouteTestHarness(registerCliRegistryRoutes);
    await app.inject({
      method: 'POST',
      url: '/api/clis',
      payload: { id: 'test-install-guard', label: 'X', shortBadge: 'X', binaries: ['x'], argv: ['x'] },
    });
    const res = await app.inject({ method: 'POST', url: '/api/clis/test-install-guard/install' });
    expect(res.json().errorCode).toBe('INVALID_INPUT');
    await app.inject({ method: 'DELETE', url: '/api/clis/test-install-guard' });
  });

  it('multi-user: non-admin is rejected before any spawn', async () => {
    enableCliManagement();
    process.env.CODEMAN_MULTIUSER = '1';
    const { app } = await createRouteTestHarness(registerCliRegistryRoutes, {
      authUser: { username: 'bob', role: 'user' },
    });
    const res = await app.inject({ method: 'POST', url: '/api/clis/grok/install' });
    expect(res.statusCode).toBe(403);
  });
});

describe('Custom CLI entries (Phase 5)', () => {
  afterEach(() => {
    delete process.env.CODEMAN_MULTIUSER;
  });

  it('rejects create when cliManagementEnabled is off', async () => {
    disableCliManagement();
    const { app } = await createRouteTestHarness(registerCliRegistryRoutes);
    const res = await app.inject({
      method: 'POST',
      url: '/api/clis',
      payload: { id: 'test-off', label: 'X', shortBadge: 'X', binaries: ['x'], argv: ['x'] },
    });
    expect(res.statusCode).toBe(403);
  });

  it('creates a custom entry, it appears in GET /api/clis with stock:false', async () => {
    enableCliManagement();
    const { app } = await createRouteTestHarness(registerCliRegistryRoutes);
    const create = await app.inject({
      method: 'POST',
      url: '/api/clis',
      payload: {
        id: 'test-create',
        label: 'Test CLI',
        shortBadge: 'TC',
        binaries: ['test-create-bin'],
        argv: ['test-create-bin', '--flag'],
      },
    });
    expect(create.statusCode).toBe(200);
    const list = await app.inject({ method: 'GET', url: '/api/clis' });
    const entry = (list.json() as { data: CliListItem[] }).data.find((c) => c.id === 'test-create');
    expect(entry?.stock).toBe(false);
    expect(entry?.label).toBe('Test CLI');
    await app.inject({ method: 'DELETE', url: '/api/clis/test-create' });
  });

  it('rejects a create whose id collides with a stock id', async () => {
    enableCliManagement();
    const { app } = await createRouteTestHarness(registerCliRegistryRoutes);
    const res = await app.inject({
      method: 'POST',
      url: '/api/clis',
      payload: { id: 'claude', label: 'X', shortBadge: 'X', binaries: ['x'], argv: ['x'] },
    });
    expect(res.json().errorCode).toBe('ALREADY_EXISTS');
  });

  it('rejects creating the same custom id twice', async () => {
    enableCliManagement();
    const { app } = await createRouteTestHarness(registerCliRegistryRoutes);
    const payload = { id: 'test-dup', label: 'X', shortBadge: 'X', binaries: ['x'], argv: ['x'] };
    const first = await app.inject({ method: 'POST', url: '/api/clis', payload });
    expect(first.statusCode).toBe(200);
    const second = await app.inject({ method: 'POST', url: '/api/clis', payload });
    expect(second.json().errorCode).toBe('ALREADY_EXISTS');
    await app.inject({ method: 'DELETE', url: '/api/clis/test-dup' });
  });

  it('rejects a literal with shell metacharacters (the schema, not a new bypass)', async () => {
    enableCliManagement();
    const { app } = await createRouteTestHarness(registerCliRegistryRoutes);
    const res = await app.inject({
      method: 'POST',
      url: '/api/clis',
      payload: { id: 'test-unsafe', label: 'X', shortBadge: 'X', binaries: ['x'], argv: ['x; rm -rf /'] },
    });
    expect(res.statusCode).toBe(400);
    const list = await app.inject({ method: 'GET', url: '/api/clis' });
    expect((list.json() as { data: CliListItem[] }).data.some((c) => c.id === 'test-unsafe')).toBe(false);
  });

  it('updates an existing custom entry via PUT /api/clis/custom/:id', async () => {
    enableCliManagement();
    const { app } = await createRouteTestHarness(registerCliRegistryRoutes);
    await app.inject({
      method: 'POST',
      url: '/api/clis',
      payload: { id: 'test-update', label: 'Before', shortBadge: 'BE', binaries: ['x'], argv: ['x'] },
    });
    const update = await app.inject({
      method: 'PUT',
      url: '/api/clis/custom/test-update',
      payload: { label: 'After', shortBadge: 'AF', binaries: ['y'], argv: ['y', '--z'] },
    });
    expect(update.statusCode).toBe(200);
    const list = await app.inject({ method: 'GET', url: '/api/clis' });
    const entry = (list.json() as { data: CliListItem[] }).data.find((c) => c.id === 'test-update');
    expect(entry?.label).toBe('After');
    await app.inject({ method: 'DELETE', url: '/api/clis/test-update' });
  });

  it('rejects PUT /api/clis/custom/:id against a stock id', async () => {
    enableCliManagement();
    const { app } = await createRouteTestHarness(registerCliRegistryRoutes);
    const res = await app.inject({
      method: 'PUT',
      url: '/api/clis/custom/claude',
      payload: { label: 'Hijack', shortBadge: 'HJ', binaries: ['x'], argv: ['x'] },
    });
    expect(res.json().errorCode).toBe('INVALID_INPUT');
    const list = await app.inject({ method: 'GET', url: '/api/clis' });
    expect((list.json() as { data: CliListItem[] }).data.find((c) => c.id === 'claude')?.label).toBe('Claude Code');
  });

  it('404s an update against a custom id that does not exist', async () => {
    enableCliManagement();
    const { app } = await createRouteTestHarness(registerCliRegistryRoutes);
    const res = await app.inject({
      method: 'PUT',
      url: '/api/clis/custom/nonexistent-custom',
      payload: { label: 'X', shortBadge: 'X', binaries: ['x'], argv: ['x'] },
    });
    expect(res.json().errorCode).toBe('NOT_FOUND');
  });

  it('deletes a custom entry; a second delete 404s', async () => {
    enableCliManagement();
    const { app } = await createRouteTestHarness(registerCliRegistryRoutes);
    await app.inject({
      method: 'POST',
      url: '/api/clis',
      payload: { id: 'test-delete', label: 'X', shortBadge: 'X', binaries: ['x'], argv: ['x'] },
    });
    const del = await app.inject({ method: 'DELETE', url: '/api/clis/test-delete' });
    expect(del.statusCode).toBe(200);
    const list = await app.inject({ method: 'GET', url: '/api/clis' });
    expect((list.json() as { data: CliListItem[] }).data.some((c) => c.id === 'test-delete')).toBe(false);
    const again = await app.inject({ method: 'DELETE', url: '/api/clis/test-delete' });
    expect(again.json().errorCode).toBe('NOT_FOUND');
  });

  it('refuses to delete a stock CLI', async () => {
    enableCliManagement();
    const { app } = await createRouteTestHarness(registerCliRegistryRoutes);
    const res = await app.inject({ method: 'DELETE', url: '/api/clis/claude' });
    expect(res.json().errorCode).toBe('INVALID_INPUT');
    const list = await app.inject({ method: 'GET', url: '/api/clis' });
    expect((list.json() as { data: CliListItem[] }).data.some((c) => c.id === 'claude')).toBe(true);
  });

  it('multi-user: non-admin is rejected on create/update/delete', async () => {
    enableCliManagement();
    process.env.CODEMAN_MULTIUSER = '1';
    const { app } = await createRouteTestHarness(registerCliRegistryRoutes, {
      authUser: { username: 'bob', role: 'user' },
    });
    const create = await app.inject({
      method: 'POST',
      url: '/api/clis',
      payload: { id: 'test-mu', label: 'X', shortBadge: 'X', binaries: ['x'], argv: ['x'] },
    });
    expect(create.statusCode).toBe(403);
    const update = await app.inject({
      method: 'PUT',
      url: '/api/clis/custom/test-mu',
      payload: { label: 'X', shortBadge: 'X', binaries: ['x'], argv: ['x'] },
    });
    expect(update.statusCode).toBe(403);
    const del = await app.inject({ method: 'DELETE', url: '/api/clis/test-mu' });
    expect(del.statusCode).toBe(403);
  });

  it('a custom entry can also be toggled via the simple Phase 3 endpoint', async () => {
    enableCliManagement();
    const { app } = await createRouteTestHarness(registerCliRegistryRoutes);
    await app.inject({
      method: 'POST',
      url: '/api/clis',
      payload: { id: 'test-toggle', label: 'X', shortBadge: 'X', binaries: ['x'], argv: ['x'], enabled: true },
    });
    const off = await app.inject({ method: 'PUT', url: '/api/clis/test-toggle', payload: { enabled: false } });
    expect(off.statusCode).toBe(200);
    const list = await app.inject({ method: 'GET', url: '/api/clis' });
    const entry = (list.json() as { data: CliListItem[] }).data.find((c) => c.id === 'test-toggle');
    expect(entry?.enabled).toBe(false);
    // The rest of the entry (binaries/argv/label) must survive the shallow
    // enabled-only merge — proven indirectly: a second full update still finds
    // the row and changes its label, which would fail if the toggle had
    // corrupted the stored shape.
    const relabel = await app.inject({
      method: 'PUT',
      url: '/api/clis/custom/test-toggle',
      payload: { label: 'Still here', shortBadge: 'X', binaries: ['x'], argv: ['x'] },
    });
    expect(relabel.statusCode).toBe(200);
    await app.inject({ method: 'DELETE', url: '/api/clis/test-toggle' });
  });
});

describe('resolver caches are forgotten when what a CLI resolves to changes', () => {
  beforeEach(() => {
    spawnMock.mockReset();
    invalidateBinariesSpy.mockClear();
    invalidateIdSpy.mockClear();
  });

  it('GET /api/clis names the install command for a stock entry only (for the confirm dialog)', async () => {
    enableCliManagement();
    const { app } = await createRouteTestHarness(registerCliRegistryRoutes);
    await app.inject({
      method: 'POST',
      url: '/api/clis',
      payload: { id: 'test-cmd', label: 'X', shortBadge: 'X', binaries: ['x'], argv: ['x'] },
    });
    const list = (await app.inject({ method: 'GET', url: '/api/clis' })).json() as { data: CliListItem[] };
    const grok = list.data.find((c) => c.id === 'grok');
    expect(grok?.installCommand).toBe(resolveInstallCommandForPlatform(getCli('grok')!));
    expect(list.data.find((c) => c.id === 'test-cmd')).not.toHaveProperty('installCommand');
    await app.inject({ method: 'DELETE', url: '/api/clis/test-cmd' });
  });

  it('a successful install runs the stock command and forgets that CLI’s cached lookups', async () => {
    enableCliManagement();
    spawnMock.mockImplementation(() => fakeInstallChild(0));
    const { app } = await createRouteTestHarness(registerCliRegistryRoutes);
    const res = await app.inject({ method: 'POST', url: '/api/clis/grok/install' });
    expect(res.statusCode).toBe(200);
    const grok = getCli('grok')!;
    expect(spawnMock).toHaveBeenCalledTimes(1);
    expect(spawnMock.mock.calls[0][0]).toBe(resolveInstallCommandForPlatform(grok));
    expect(spawnMock.mock.calls[0][1]).toMatchObject({ shell: true, detached: true });
    // Without this, the Run menu and a session spawn replayed the pre-install miss
    // for up to the 5-minute negative-cache backoff.
    expect(invalidateBinariesSpy).toHaveBeenCalledWith(grok.discovery.binaries);
    expect(invalidateIdSpy).toHaveBeenCalledWith('grok');
  });

  it('a failed install still forgets the cached lookups (it may have left a binary behind)', async () => {
    enableCliManagement();
    spawnMock.mockImplementation(() => fakeInstallChild(1));
    const { app } = await createRouteTestHarness(registerCliRegistryRoutes);
    const res = await app.inject({ method: 'POST', url: '/api/clis/grok/install' });
    expect(res.json().errorCode).toBe('OPERATION_FAILED');
    expect(invalidateIdSpy).toHaveBeenCalledWith('grok');
  });

  it('never spawns anything for a custom entry, even though the route exists', async () => {
    enableCliManagement();
    const { app } = await createRouteTestHarness(registerCliRegistryRoutes);
    await app.inject({
      method: 'POST',
      url: '/api/clis',
      payload: { id: 'test-nospawn', label: 'X', shortBadge: 'X', binaries: ['x'], argv: ['x'] },
    });
    await app.inject({ method: 'POST', url: '/api/clis/test-nospawn/install' });
    expect(spawnMock).not.toHaveBeenCalled();
    await app.inject({ method: 'DELETE', url: '/api/clis/test-nospawn' });
  });

  it('editing a custom entry forgets BOTH its old and new binaries, and its id', async () => {
    enableCliManagement();
    const { app } = await createRouteTestHarness(registerCliRegistryRoutes);
    await app.inject({
      method: 'POST',
      url: '/api/clis',
      payload: { id: 'test-rebin', label: 'X', shortBadge: 'X', binaries: ['old-bin'], argv: ['old-bin'] },
    });
    invalidateBinariesSpy.mockClear();
    invalidateIdSpy.mockClear();
    const res = await app.inject({
      method: 'PUT',
      url: '/api/clis/custom/test-rebin',
      payload: { label: 'X', shortBadge: 'X', binaries: ['new-bin'], argv: ['new-bin'] },
    });
    expect(res.statusCode).toBe(200);
    expect(invalidateBinariesSpy).toHaveBeenCalledWith(['old-bin', 'new-bin']);
    expect(invalidateIdSpy).toHaveBeenCalledWith('test-rebin');
    await app.inject({ method: 'DELETE', url: '/api/clis/test-rebin' });
  });

  it('deleting a custom entry forgets its binaries and id, so a same-named re-create starts clean', async () => {
    enableCliManagement();
    const { app } = await createRouteTestHarness(registerCliRegistryRoutes);
    await app.inject({
      method: 'POST',
      url: '/api/clis',
      payload: { id: 'test-forget', label: 'X', shortBadge: 'X', binaries: ['gone-bin'], argv: ['gone-bin'] },
    });
    invalidateBinariesSpy.mockClear();
    invalidateIdSpy.mockClear();
    await app.inject({ method: 'DELETE', url: '/api/clis/test-forget' });
    expect(invalidateBinariesSpy).toHaveBeenCalledWith(['gone-bin']);
    expect(invalidateIdSpy).toHaveBeenCalledWith('test-forget');
  });
});

/**
 * The #476 review's must-fix items for the writer. Each reproduces the failure it reported:
 * a corrupt hand-edit overwritten by one toggle, parallel toggles lost to a shared temp file,
 * and a file the reader refuses rewritten as trusted 0600 config.
 */
describe('registry writes are serialized and never clobber a file the reader would refuse', () => {
  beforeEach(() => {
    spawnMock.mockReset();
  });

  /** Put the override file back to "absent" so later tests start from stock. */
  function clearRegistryFile(): void {
    rmSync(registryFilePath(), { force: true });
    reloadCliRegistry();
  }

  it('refuses to overwrite a clis.json that does not parse, and leaves it untouched', async () => {
    enableCliManagement();
    mkdirSync(dirname(registryFilePath()), { recursive: true });
    const handEdit = '{ "schemaVersion": 1, "clis": { "grok": { "accent": "#123456" }, }';
    writeFileSync(registryFilePath(), handEdit, { mode: 0o600 });
    const { app } = await createRouteTestHarness(registerCliRegistryRoutes);
    const res = await app.inject({ method: 'PUT', url: '/api/clis/pi', payload: { enabled: false } });
    expect(res.json().errorCode).toBe('CONFLICT');
    expect(res.json().error).toContain('not valid JSON');
    expect(readFileSync(registryFilePath(), 'utf-8')).toBe(handEdit);
    clearRegistryFile();
  });

  it.skipIf(process.platform === 'win32')(
    'refuses to rewrite a clis.json with group/world permission bits, naming the chmod fix',
    async () => {
      enableCliManagement();
      mkdirSync(dirname(registryFilePath()), { recursive: true });
      writeFileSync(registryFilePath(), JSON.stringify({ schemaVersion: 1, clis: {} }));
      chmodSync(registryFilePath(), 0o644);
      const { app } = await createRouteTestHarness(registerCliRegistryRoutes);
      const res = await app.inject({ method: 'PUT', url: '/api/clis/pi', payload: { enabled: false } });
      expect(res.json().errorCode).toBe('CONFLICT');
      expect(res.json().error).toContain('chmod 600');
      // Still the refused mode: the write did not turn it into trusted config.
      expect(statSync(registryFilePath()).mode & 0o777).toBe(0o644);
      clearRegistryFile();
    }
  );

  it('keeps every one of several parallel toggles, with no failures', async () => {
    enableCliManagement();
    clearRegistryFile();
    const { app } = await createRouteTestHarness(registerCliRegistryRoutes);
    const ids = ['grok', 'pi', 'omp', 'gemini'];
    const results = await Promise.all(
      ids.map((id) => app.inject({ method: 'PUT', url: `/api/clis/${id}`, payload: { enabled: false } }))
    );
    expect(results.map((r) => r.statusCode)).toEqual(ids.map(() => 200));
    const onDisk = JSON.parse(readFileSync(registryFilePath(), 'utf-8')) as {
      clis: Record<string, { enabled?: boolean }>;
    };
    for (const id of ids) {
      expect(onDisk.clis[id]?.enabled).toBe(false);
      expect(getCli(id)?.enabled).toBe(false);
    }
    clearRegistryFile();
  });

  it('editing a disabled custom entry keeps it disabled when the body omits enabled', async () => {
    enableCliManagement();
    const { app } = await createRouteTestHarness(registerCliRegistryRoutes);
    await app.inject({
      method: 'POST',
      url: '/api/clis',
      payload: { id: 'test-keep-off', label: 'X', shortBadge: 'X', binaries: ['x'], argv: ['x'] },
    });
    await app.inject({ method: 'PUT', url: '/api/clis/test-keep-off', payload: { enabled: false } });
    const update = await app.inject({
      method: 'PUT',
      url: '/api/clis/custom/test-keep-off',
      payload: { label: 'Renamed', shortBadge: 'X', binaries: ['x'], argv: ['x'] },
    });
    expect(update.statusCode).toBe(200);
    expect(getCli('test-keep-off')?.enabled).toBe(false);
    expect(getCli('test-keep-off')?.label).toBe('Renamed');
    await app.inject({ method: 'DELETE', url: '/api/clis/test-keep-off' });
  });

  it('answers 409 to a second install of the same CLI while the first is still running', async () => {
    enableCliManagement();
    let finish: (code: number) => void = () => {};
    spawnMock.mockImplementation(() => {
      const child = new EventEmitter() as EventEmitter & Record<string, unknown>;
      child.stdout = new EventEmitter();
      child.stderr = new EventEmitter();
      finish = (code) => child.emit('close', code);
      return child;
    });
    const { app } = await createRouteTestHarness(registerCliRegistryRoutes);
    const first = app.inject({ method: 'POST', url: '/api/clis/grok/install' });
    await vi.waitFor(() => expect(spawnMock).toHaveBeenCalledTimes(1));
    const second = await app.inject({ method: 'POST', url: '/api/clis/grok/install' });
    expect(second.json().errorCode).toBe('CONFLICT');
    expect(spawnMock).toHaveBeenCalledTimes(1);
    finish(0);
    expect((await first).statusCode).toBe(200);
    // The guard is released once the first finishes.
    spawnMock.mockImplementation(() => fakeInstallChild(0));
    const third = await app.inject({ method: 'POST', url: '/api/clis/grok/install' });
    expect(third.statusCode).toBe(200);
  });

  it('hands the install script an environment with every CODEMAN_* variable stripped', async () => {
    enableCliManagement();
    process.env.CODEMAN_TEST_SECRET = 'do-not-leak';
    try {
      spawnMock.mockImplementation(() => fakeInstallChild(0));
      const { app } = await createRouteTestHarness(registerCliRegistryRoutes);
      await app.inject({ method: 'POST', url: '/api/clis/grok/install' });
      const env = spawnMock.mock.calls[0][1].env as NodeJS.ProcessEnv;
      expect(Object.keys(env).filter((k) => k.startsWith('CODEMAN_'))).toEqual([]);
      expect(env.PATH).toBe(process.env.PATH);
    } finally {
      delete process.env.CODEMAN_TEST_SECRET;
    }
    expect(installEnv({ CODEMAN_PASSWORD: 'x', HOME: '/h' })).toEqual({ HOME: '/h' });
  });
});

/**
 * #343 review, finding 2: the run-mode allowlist used to be computed once at import, so a
 * CLI toggled on in Settings still failed POST /api/sessions with INVALID_INPUT until a
 * restart. Drives the real toggle/create routes and then the real session-create schema.
 */
describe('a toggle or new custom CLI reaches session-create validation with no restart', () => {
  it('disabling grok rejects mode grok at once, and re-enabling accepts it again', async () => {
    enableCliManagement();
    const { app } = await createRouteTestHarness(registerCliRegistryRoutes);
    expect(CreateSessionSchema.safeParse({ mode: 'grok' }).success).toBe(true);
    await app.inject({ method: 'PUT', url: '/api/clis/grok', payload: { enabled: false } });
    expect(CreateSessionSchema.safeParse({ mode: 'grok' }).success).toBe(false);
    await app.inject({ method: 'PUT', url: '/api/clis/grok', payload: { enabled: true } });
    expect(CreateSessionSchema.safeParse({ mode: 'grok' }).success).toBe(true);
  });

  it('a newly created custom CLI is a valid mode immediately, and stops being one when deleted', async () => {
    enableCliManagement();
    const { app } = await createRouteTestHarness(registerCliRegistryRoutes);
    expect(CreateSessionSchema.safeParse({ mode: 'test-live-mode' }).success).toBe(false);
    await app.inject({
      method: 'POST',
      url: '/api/clis',
      payload: { id: 'test-live-mode', label: 'X', shortBadge: 'X', binaries: ['x'], argv: ['x'] },
    });
    expect(CreateSessionSchema.safeParse({ mode: 'test-live-mode' }).success).toBe(true);
    await app.inject({ method: 'DELETE', url: '/api/clis/test-live-mode' });
    expect(CreateSessionSchema.safeParse({ mode: 'test-live-mode' }).success).toBe(false);
  });
});

/**
 * #347 review, finding 5: a custom CLI was API-acceptable but not survivable downstream (a
 * remote pane command came out as `cd <path> && undefined`). #476 makes custom entries
 * creatable from Settings, so pin that one created here launches everywhere it can run.
 */
describe('a custom CLI created through the API launches locally, over ssh and in docker', () => {
  it('renders its argv locally and its binary for the remote/docker overlays', async () => {
    enableCliManagement();
    const { app } = await createRouteTestHarness(registerCliRegistryRoutes);
    await app.inject({
      method: 'POST',
      url: '/api/clis',
      payload: { id: 'test-launch', label: 'X', shortBadge: 'X', binaries: ['my-agent'], argv: ['my-agent', '--yolo'] },
    });
    const entry = getCli('test-launch')!;
    const mode = 'test-launch' as Parameters<typeof defaultRemoteCommandForMode>[0];
    expect(buildSpawnCommandFromRegistry(entry, { mode, sessionId: 'sid' })).toBe('my-agent --yolo');
    expect(defaultRemoteCommandForMode(mode)).toContain('my-agent');
    expect(defaultRemoteCommandForMode(mode)).not.toContain('undefined');
    expect(defaultDockerCommandForMode(mode)).toBe('exec my-agent');
    await app.inject({ method: 'DELETE', url: '/api/clis/test-launch' });
  });
});