import { getAnthropicClient, resetAnthropicClient } from '../../src/intake/anthropicClient';

const KEY = 'sk-ant-test-key';

beforeEach(() => {
  resetAnthropicClient();
  delete process.env.ANTHROPIC_API_KEY;
  delete process.env.ANTHROPIC_WORKSPACE_ID;
});

afterAll(() => {
  resetAnthropicClient();
});

/** The SDK stores what it was given, so the header is readable back off it. */
function headerOf(client: unknown): string | undefined {
  const headers = (client as { _options?: { defaultHeaders?: Record<string, string> } })._options
    ?.defaultHeaders;
  return headers?.['anthropic-workspace-id'];
}

describe('getAnthropicClient', () => {
  it('is null without a key, because unconfigured is a working configuration', () => {
    expect(getAnthropicClient()).toBeNull();
  });

  it('is null for a key that is only whitespace', () => {
    process.env.ANTHROPIC_API_KEY = '   ';
    expect(getAnthropicClient()).toBeNull();
  });

  it('builds a client from a key', () => {
    process.env.ANTHROPIC_API_KEY = KEY;
    expect(getAnthropicClient()).not.toBeNull();
  });

  /**
   * An identity-linked key is refused with a 400 unless the request names the
   * workspace it acts in. Nothing about a key's shape says which kind it is, so
   * this only showed up on a real call (#271).
   */
  it('sends the workspace id when one is configured', () => {
    process.env.ANTHROPIC_API_KEY = KEY;
    process.env.ANTHROPIC_WORKSPACE_ID = 'wrkspc_abc123';

    expect(headerOf(getAnthropicClient())).toBe('wrkspc_abc123');
  });

  // Plenty of keys need no workspace. Sending an empty header would turn the
  // ordinary case into a different error rather than leaving it working.
  it('sends no workspace header when none is configured', () => {
    process.env.ANTHROPIC_API_KEY = KEY;

    expect(headerOf(getAnthropicClient())).toBeUndefined();
  });

  it('sends no workspace header for a value that is only whitespace', () => {
    process.env.ANTHROPIC_API_KEY = KEY;
    process.env.ANTHROPIC_WORKSPACE_ID = '   ';

    expect(headerOf(getAnthropicClient())).toBeUndefined();
  });

  it('trims a workspace id that arrived with padding', () => {
    process.env.ANTHROPIC_API_KEY = KEY;
    process.env.ANTHROPIC_WORKSPACE_ID = '  wrkspc_abc123  ';

    expect(headerOf(getAnthropicClient())).toBe('wrkspc_abc123');
  });
});