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

import { contextForUser } from './helpers';

const BASE_URL = process.env.E2E_BASE_URL ?? 'http://localhost:5173';

/**
 * Pond member management UI (issue #54): adding takes effect immediately (no
 * invitation), seat quotas disable the add action, and non-admin members see
 * the list read-only. Uses a second regular account (`fixture-editor`) as the
 * member whose access the owner (`fixture-user`) manages.
 */

async function createSharedPond(owner: BrowserContext): Promise<{ id: string; slug: string }> {
  const res = await owner.request.post('/api/v1/ponds', {
    data: { name: `Members ${Date.now()}` },
  });
  if (!res.ok()) throw new Error(`create pond failed: ${res.status()} ${await res.text()}`);
  return (await res.json()) as { id: string; slug: string };
}

/** Site-admin only: change the instance-wide editor seat default. */
async function setEditorQuota(admin: BrowserContext, value: number): Promise<void> {
  const res = await admin.request.patch('/api/v1/admin/settings', {
    data: { 'quota.editorsPerPond': value },
  });
  if (!res.ok()) throw new Error(`patch settings failed: ${res.status()} ${await res.text()}`);
}

test('adding a member takes effect immediately (second browser)', async ({ browser }) => {
  const owner = await contextForUser(browser, BASE_URL, 'fixture-user');
  const invitee = await contextForUser(browser, BASE_URL, 'fixture-editor');
  const pond = await createSharedPond(owner);

  // Not a member yet: the pond hides itself from the invitee.
  expect((await invitee.request.get(`/api/v1/ponds/${pond.slug}`)).status()).toBe(404);

  const page = await owner.newPage();
  await page.goto(`/p/${pond.slug}/settings`);
  await page.locator('.member-add__identifier').fill('fixture-editor');
  await page.locator('.member-add__role').selectOption('reader');
  await page.locator('.member-add__submit').click();
  await expect(page.locator('.member-row[data-username="fixture-editor"]')).toBeVisible();

  // Access is immediate for the second browser — no acceptance step.
  await expect
    .poll(async () => (await invitee.request.get(`/api/v1/ponds/${pond.slug}`)).status())
    .toBe(200);

  await owner.close();
  await invitee.close();
});

test('quota exhaustion disables the add action with an explanation', async ({ browser }) => {
  const admin = await contextForUser(browser, BASE_URL, 'fixture-admin');
  const owner = await contextForUser(browser, BASE_URL, 'fixture-user');
  try {
    await setEditorQuota(admin, 1);
    const pond = await createSharedPond(owner);

    const page = await owner.newPage();
    await page.goto(`/p/${pond.slug}/settings`);
    // Fill the single editor seat.
    await page.locator('.member-add__identifier').fill('fixture-editor');
    await page.locator('.member-add__role').selectOption('editor');
    await page.locator('.member-add__submit').click();
    await expect(page.locator('.member-row[data-username="fixture-editor"]')).toBeVisible();

    // With the seat full, choosing the editor role blocks any further add.
    await page.locator('.member-add__role').selectOption('editor');
    await expect(page.locator('.member-add__submit')).toBeDisabled();
    await expect(page.locator('.member-add__quota-full')).toBeVisible();
  } finally {
    await setEditorQuota(admin, 5);
    await admin.close();
    await owner.close();
  }
});

test('non-admin members see the member list read-only', async ({ browser }) => {
  const owner = await contextForUser(browser, BASE_URL, 'fixture-user');
  const member = await contextForUser(browser, BASE_URL, 'fixture-editor');
  const pond = await createSharedPond(owner);
  await owner.request.post(`/api/v1/ponds/${pond.id}/members`, {
    data: { usernameOrEmail: 'fixture-editor', role: 'reader' },
  });

  const page = await member.newPage();
  await page.goto(`/p/${pond.slug}/settings`);
  // The membership is transparent — the owner is listed…
  await expect(page.locator('.member-row[data-username="fixture-user"]')).toBeVisible();
  // …but a non-admin gets no add form and no per-member controls.
  await expect(page.locator('.member-add')).toHaveCount(0);
  await expect(page.locator('.member-row__remove')).toHaveCount(0);
  await expect(page.locator('.member-manager__note')).toBeVisible();

  await owner.close();
  await member.close();
});