import { expect, test, type APIRequestContext, type Page } from '@playwright/test';

/**
 * M6 — Mission CRUD, snapshot fidelity, membership visibility, transitions.
 *
 * The suite covers:
 *  - Snapshot independence (mutating a template after mission creation must NOT
 *    propagate into the mission's snapshot).
 *  - Membership visibility (non-admin viewers see only their own missions).
 *  - Status transition state machine (draft → in_progress → completed → archived).
 *  - SPA: list + 3-step create wizard + detail page tabs.
 *
 * Template + MITRE seed are pulled in `beforeAll`; the `afterAll` hook restores
 * the stable admin (memory rule `feedback-metamorph-test-admin`) and re-seeds
 * MITRE so subsequent manual sessions don't see an empty matrix.
 */

const ADMIN_EMAIL = `m6-admin-${crypto.randomUUID().slice(0, 8)}@metamorph.local`;
const ADMIN_PASSWORD = 'AdminPass1234!';

async function resetAndMintToken(request: APIRequestContext): Promise<string> {
  const r = await request.post('/api/v1/diag/reset');
  expect(r.status()).toBe(200);
  return (await r.json()).install_token as string;
}

async function loginAndGetAccess(
  request: APIRequestContext,
  email: string,
  password: string,
): Promise<string> {
  const r = await request.post('/api/v1/auth/login', { data: { email, password } });
  expect(r.status()).toBe(200);
  return (await r.json()).access_token as string;
}

async function loginViaSpa(page: Page, email: string, password: string) {
  await page.goto('/login');
  await page.getByLabel(/email/i).fill(email);
  await page.getByLabel(/password/i).fill(password);
  await page.getByRole('button', { name: /sign in/i }).click();
  await expect(page.getByTestId('me-email')).toHaveText(email);
}

test.describe.configure({ mode: 'serial' });

test.describe('M6 — Missions', () => {
  test.beforeAll(async ({ request }) => {
    const installToken = await resetAndMintToken(request);
    const setup = await request.post('/api/v1/setup', {
      data: { install_token: installToken, email: ADMIN_EMAIL, password: ADMIN_PASSWORD },
    });
    expect(setup.status()).toBe(201);
    const access = await loginAndGetAccess(request, ADMIN_EMAIL, ADMIN_PASSWORD);
    const sync = await request.post('/api/v1/mitre/sync', {
      headers: { Authorization: `Bearer ${access}` },
    });
    expect(sync.status()).toBe(200);
  });

  test.afterAll(async ({ request }) => {
    const installToken = await resetAndMintToken(request);
    await request.post('/api/v1/setup', {
      data: {
        install_token: installToken,
        email: 'admin@metamorph.local',
        password: 'AdminPass1234!',
      },
    });
    const access = await loginAndGetAccess(request, 'admin@metamorph.local', 'AdminPass1234!');
    await request.post('/api/v1/mitre/sync', {
      headers: { Authorization: `Bearer ${access}` },
    });
  });

  // ---------- helpers ----------------------------------------------------

  async function adminAuth(request: APIRequestContext): Promise<Record<string, string>> {
    const access = await loginAndGetAccess(request, ADMIN_EMAIL, ADMIN_PASSWORD);
    return { Authorization: `Bearer ${access}` };
  }

  async function makeTest(
    request: APIRequestContext,
    auth: Record<string, string>,
    name: string,
    mitre = 'T1059',
  ): Promise<string> {
    const r = await request.post('/api/v1/test-templates', {
      headers: auth,
      data: {
        name,
        mitre_tags: [{ kind: 'technique', external_id: mitre }],
      },
    });
    expect(r.status(), await r.text()).toBe(201);
    return (await r.json()).id as string;
  }

  async function makeScenario(
    request: APIRequestContext,
    auth: Record<string, string>,
    name: string,
    testIds: string[],
  ): Promise<string> {
    const r = await request.post('/api/v1/scenario-templates', {
      headers: auth,
      data: { name, test_template_ids: testIds },
    });
    expect(r.status(), await r.text()).toBe(201);
    return (await r.json()).id as string;
  }

  // ---------- API: snapshot fidelity ------------------------------------

  test('Snapshot freezes scenario + test fields at creation time', async ({ request }) => {
    const auth = await adminAuth(request);
    const tid = await makeTest(request, auth, 'snap-t1');
    const sid = await makeScenario(request, auth, 'snap-scenario', [tid]);

    const create = await request.post('/api/v1/missions', {
      headers: auth,
      data: {
        name: 'snap-mission',
        client_target: 'Acme',
        scenario_template_ids: [sid],
      },
    });
    expect(create.status(), await create.text()).toBe(201);
    const mission = await create.json();
    expect(mission.scenarios_count).toBe(1);
    expect(mission.tests_count).toBe(1);
    expect(mission.scenarios[0].tests[0].snapshot_name).toBe('snap-t1');

    // Mutate the source template AFTER snapshot
    const edit = await request.put(`/api/v1/test-templates/${tid}`, {
      headers: auth,
      data: {
        name: 'RENAMED-LATER',
        mitre_tags: [{ kind: 'tactic', external_id: 'TA0002' }],
      },
    });
    expect(edit.status()).toBe(200);

    // Mission still sees the pre-edit snapshot
    const refetch = await request.get(`/api/v1/missions/${mission.id}`, { headers: auth });
    expect(refetch.status()).toBe(200);
    const snapshot = await refetch.json();
    expect(snapshot.scenarios[0].tests[0].snapshot_name).toBe('snap-t1');
    expect(
      snapshot.scenarios[0].tests[0].mitre_tags.map(
        (t: { external_id: string }) => t.external_id,
      ),
    ).toEqual(['T1059']);
  });

  // ---------- API: membership visibility --------------------------------

  test('Non-admin members see only missions they belong to', async ({ request }) => {
    const auth = await adminAuth(request);

    // Create a group with mission.* perms and invite a "red" user.
    const grp = await request
      .post('/api/v1/groups', { headers: auth, data: { name: 'm6-red-grp' } })
      .then((r) => r.json());
    const setPerms = await request.put(`/api/v1/groups/${grp.id}/permissions`, {
      headers: auth,
      data: {
        codes: ['mission.read', 'mission.create', 'mission.update', 'mission.archive'],
      },
    });
    expect(setPerms.status()).toBe(200);

    const redEmail = `m6-red-${crypto.randomUUID().slice(0, 8)}@metamorph.local`;
    const redPwd = 'RedPass1234!';
    const inv = await request
      .post('/api/v1/invitations', {
        headers: auth,
        data: { email_hint: redEmail, group_ids: [grp.id] },
      })
      .then((r) => r.json());
    const accept = await request.post(`/api/v1/invitations/accept/${inv.token}`, {
      data: { email: redEmail, password: redPwd },
    });
    expect(accept.status()).toBe(201);

    const redAccess = await loginAndGetAccess(request, redEmail, redPwd);
    const redAuth = { Authorization: `Bearer ${redAccess}` };

    // Admin creates a mission with NO members → red should not see it.
    const hidden = await request
      .post('/api/v1/missions', {
        headers: auth,
        data: { name: 'm6-admin-hidden' },
      })
      .then((r) => r.json());
    const redList = await request.get('/api/v1/missions', { headers: redAuth });
    expect(redList.status()).toBe(200);
    const visible = (await redList.json()).items.map((it: { name: string }) => it.name);
    expect(visible).not.toContain('m6-admin-hidden');
    const redGetHidden = await request.get(`/api/v1/missions/${hidden.id}`, {
      headers: redAuth,
    });
    expect(redGetHidden.status()).toBe(404);

    // Red creates their own mission — auto-added as member → visible to them.
    const ownResp = await request.post('/api/v1/missions', {
      headers: redAuth,
      data: { name: 'm6-red-own' },
    });
    expect(ownResp.status(), await ownResp.text()).toBe(201);
    const own = await ownResp.json();
    expect(own.members.map((m: { user_id: string }) => m.user_id)).toContain(
      own.members[0].user_id,
    );
    const redListAfter = await request.get('/api/v1/missions', { headers: redAuth });
    const namesAfter = (await redListAfter.json()).items.map(
      (it: { name: string }) => it.name,
    );
    expect(namesAfter).toContain('m6-red-own');
  });

  // ---------- API: transitions ------------------------------------------

  test('Status transition chain and rejection of invalid jumps', async ({ request }) => {
    const auth = await adminAuth(request);
    const m = await request
      .post('/api/v1/missions', {
        headers: auth,
        data: { name: 'm6-status-chain' },
      })
      .then((r) => r.json());

    for (const target of ['in_progress', 'completed', 'archived']) {
      const r = await request.post(`/api/v1/missions/${m.id}/transition`, {
        headers: auth,
        data: { status: target },
      });
      expect(r.status(), await r.text()).toBe(200);
      expect((await r.json()).status).toBe(target);
    }

    // Re-create + try an invalid jump draft → completed (must be 409)
    const m2 = await request
      .post('/api/v1/missions', {
        headers: auth,
        data: { name: 'm6-status-jump' },
      })
      .then((r) => r.json());
    const bad = await request.post(`/api/v1/missions/${m2.id}/transition`, {
      headers: auth,
      data: { status: 'completed' },
    });
    expect(bad.status()).toBe(409);
    expect((await bad.json()).error).toBe('invalid_transition');
  });

  // ---------- SPA -------------------------------------------------------

  test('SPA — admin creates a mission via the 3-step wizard', async ({ page, request }) => {
    const auth = await adminAuth(request);
    const ids: string[] = [];
    for (const name of ['spa-wizard-t1', 'spa-wizard-t2', 'spa-wizard-t3']) {
      ids.push(await makeTest(request, auth, name));
    }
    const sid = await makeScenario(request, auth, 'spa-wizard-scenario', ids);

    await loginViaSpa(page, ADMIN_EMAIL, ADMIN_PASSWORD);
    await page.goto('/missions');
    await page.getByTestId('missions-new-link').click();
    await expect(page).toHaveURL(/\/missions\/new$/);

    // Step 1 — Metadata
    await page.getByTestId('meta-name').fill('spa-wizard-mission');
    await page.getByTestId('meta-client').fill('Acme via SPA');
    await page.getByTestId('missions-create-next').click();

    // Step 2 — Scenarios
    await page.getByTestId(`scenario-toggle-${sid}`).click();
    await page.getByTestId('missions-create-next').click();

    // Step 3 — Members (admin doesn't need to add themselves; submit straight away)
    await page.getByTestId('missions-create-submit').click();

    // Should land on the detail page
    await expect(page).toHaveURL(/\/missions\/[0-9a-f-]+$/);
    await expect(page.getByTestId('mission-transition-in_progress')).toBeVisible();
    await expect(page.getByTestId('mission-tab-tests')).toBeVisible();
    // Tests tab renders 3 snapshotted tests
    await expect(page.getByText('spa-wizard-t1')).toBeVisible();
    await expect(page.getByText('spa-wizard-t2')).toBeVisible();
    await expect(page.getByText('spa-wizard-t3')).toBeVisible();
  });

  test('SPA — detail page edits metadata, appends scenarios, edits members', async ({
    page,
    request,
  }) => {
    const auth = await adminAuth(request);

    // Pre-seed: one mission with one initial scenario; a second scenario to
    // append; and a second user we can assign as a member from the SPA.
    const initialTestId = await makeTest(request, auth, 'spa-edit-initial-t');
    const initialScenarioId = await makeScenario(
      request,
      auth,
      'spa-edit-initial-scenario',
      [initialTestId],
    );
    const extraTestId = await makeTest(request, auth, 'spa-edit-appended-t');
    const extraScenarioId = await makeScenario(
      request,
      auth,
      'spa-edit-appended-scenario',
      [extraTestId],
    );
    const mission = await request
      .post('/api/v1/missions', {
        headers: auth,
        data: {
          name: 'spa-edit-target',
          client_target: 'Initial Co.',
          scenario_template_ids: [initialScenarioId],
        },
      })
      .then((r) => r.json());

    // A second user the admin can add as a member via the modal.
    const teammateEmail = `spa-edit-mate-${crypto.randomUUID().slice(0, 8)}@metamorph.local`;
    const inv = await request
      .post('/api/v1/invitations', {
        headers: auth,
        data: { email_hint: teammateEmail },
      })
      .then((r) => r.json());
    await request.post(`/api/v1/invitations/accept/${inv.token}`, {
      data: { email: teammateEmail, password: 'MatePass1234!' },
    });

    await loginViaSpa(page, ADMIN_EMAIL, ADMIN_PASSWORD);
    await page.goto(`/missions/${mission.id}`);
    await expect(page.getByText('Initial Co.')).toBeVisible();

    // --- Edit metadata --------------------------------------------------
    await page.getByTestId('mission-edit-meta').click();
    const metaModal = page.getByTestId('mission-edit-meta-modal');
    await expect(metaModal).toBeVisible();
    await metaModal.getByTestId('meta-edit-client').fill('Renamed Co.');
    await metaModal.getByTestId('meta-edit-save').click();
    await expect(metaModal).toBeHidden();
    await expect(page.getByText('Renamed Co.')).toBeVisible();

    // --- Append a scenario ---------------------------------------------
    await page.getByTestId('mission-add-scenarios').click();
    const addModal = page.getByTestId('mission-add-scenarios-modal');
    await expect(addModal).toBeVisible();
    await addModal.getByTestId(`add-scenario-toggle-${extraScenarioId}`).click();
    await addModal.getByTestId('add-scenarios-save').click();
    await expect(addModal).toBeHidden();
    // Both scenarios now visible in the Tests tab
    await expect(page.getByText('spa-edit-initial-scenario')).toBeVisible();
    await expect(page.getByText('spa-edit-appended-scenario')).toBeVisible();
    await expect(page.getByText('spa-edit-appended-t')).toBeVisible();

    // --- Edit members ---------------------------------------------------
    await page.getByTestId('mission-tab-members').click();
    await page.getByTestId('mission-edit-members').click();
    const memModal = page.getByTestId('mission-edit-members-modal');
    await expect(memModal).toBeVisible();
    // The roster row test-ids encode the new user's id; we don't know it here
    // but the email is unique, so locate the row by email text and toggle red.
    const teammateRow = memModal.getByText(teammateEmail).locator('..').locator('..');
    await teammateRow.getByRole('button', { name: /red/i }).click();
    await memModal.getByTestId('edit-members-save').click();
    await expect(memModal).toBeHidden();
    await expect(page.getByText(teammateEmail)).toBeVisible();
  });

  test('SPA — list page filters by status', async ({ page, request }) => {
    const auth = await adminAuth(request);
    // Seed two missions with distinct statuses.
    const m1 = await request
      .post('/api/v1/missions', { headers: auth, data: { name: 'filter-draft' } })
      .then((r) => r.json());
    const m2 = await request
      .post('/api/v1/missions', { headers: auth, data: { name: 'filter-active' } })
      .then((r) => r.json());
    await request.post(`/api/v1/missions/${m2.id}/transition`, {
      headers: auth,
      data: { status: 'in_progress' },
    });

    await loginViaSpa(page, ADMIN_EMAIL, ADMIN_PASSWORD);
    await page.goto('/missions');
    await expect(page.getByText('filter-draft')).toBeVisible();
    await expect(page.getByText('filter-active')).toBeVisible();

    await page.getByTestId('missions-filter-status').selectOption('in_progress');
    await expect(page.getByText('filter-active')).toBeVisible();
    await expect(page.getByText('filter-draft')).toBeHidden();
    // Sanity: m1 / m2 ids should match what the list-card test-id encodes.
    await expect(page.getByTestId(`mission-card-${m2.id}`)).toBeVisible();
    await expect(page.getByTestId(`mission-card-${m1.id}`)).toBeHidden();
  });
});