import { describe, expect, test } from 'bun:test';
import {
  buildRuntimeAuthHeaders,
  clearRuntimeAuthCredentialProvider,
  getRuntimeBearerTokenSync,
  setRuntimeAuthCredentialProvider,
  setRuntimeBearerToken,
} from './runtime-auth';

describe('runtime auth headers', () => {
  test('does not add authorization by default', async () => {
    clearRuntimeAuthCredentialProvider();
    const headers = await buildRuntimeAuthHeaders({ Accept: 'application/json' });

    expect(headers.get('Accept')).toBe('application/json');
    expect(headers.has('Authorization')).toBe(false);
  });

  test('adds bearer token when configured', async () => {
    try {
      setRuntimeBearerToken('token-123');
      const headers = await buildRuntimeAuthHeaders();

      expect(headers.get('Authorization')).toBe('Bearer token-123');
    } finally {
      clearRuntimeAuthCredentialProvider();
    }
  });

  test('preserves explicit authorization header', async () => {
    try {
      setRuntimeAuthCredentialProvider(() => ({ type: 'bearer', token: 'runtime-token' }));
      const headers = await buildRuntimeAuthHeaders({ Authorization: 'Bearer explicit-token' });

      expect(headers.get('Authorization')).toBe('Bearer explicit-token');
    } finally {
      clearRuntimeAuthCredentialProvider();
    }
  });

  test('falls back to injected desktop client token', async () => {
    const previousWindow = Object.getOwnPropertyDescriptor(globalThis, 'window');
    try {
      clearRuntimeAuthCredentialProvider();
      Object.defineProperty(globalThis, 'window', {
        configurable: true,
        value: { __OPENCHAMBER_CLIENT_TOKEN__: ' injected-token ' },
      });

      expect(getRuntimeBearerTokenSync()).toBe('injected-token');

      const headers = await buildRuntimeAuthHeaders();
      expect(headers.get('Authorization')).toBe('Bearer injected-token');
    } finally {
      clearRuntimeAuthCredentialProvider();
      if (previousWindow) {
        Object.defineProperty(globalThis, 'window', previousWindow);
      } else {
        Reflect.deleteProperty(globalThis, 'window');
      }
    }
  });
});