import { describe, it, expect } from 'vitest';

import {
  computeMembershipDiff,
  managedGroups,
  normalizeEmail,
  MANAGED_GROUP_NAMES,
} from '../src/groups.js';

describe('computeMembershipDiff', () => {
  it('adds missing and removes extra, case-insensitively', () => {
    const diff = computeMembershipDiff(
      ['Adam@seahavenind.com', 'old@seahavenind.com'],
      ['adam@seahavenind.com', 'new@seahavenind.com'],
    );
    expect(diff.toAdd).toEqual(['new@seahavenind.com']);
    expect(diff.toRemove).toEqual(['old@seahavenind.com']);
  });

  it('no-ops when membership already matches (ignoring case/whitespace)', () => {
    const diff = computeMembershipDiff([' A@x.com '], ['a@x.com']);
    expect(diff.toAdd).toEqual([]);
    expect(diff.toRemove).toEqual([]);
  });
});

describe('managedGroups', () => {
  it('maps each Cognito group to its Google address on the given domain', () => {
    const g = managedGroups('example.com');
    expect(g.map((x) => x.cognito)).toEqual([...MANAGED_GROUP_NAMES]);
    expect(g[0]).toEqual({ cognito: 'sh-mcp-ops', googleEmail: 'sh-mcp-ops@example.com' });
  });
});

describe('normalizeEmail', () => {
  it('lowercases and trims', () => {
    expect(normalizeEmail('  Foo@Bar.COM ')).toBe('foo@bar.com');
  });
});