import { describe, test, expect } from 'vitest';
import { 
  DEFAULT_OPENROUTER_MODEL, 
  DEFAULT_SUPERVISOR_MODEL, 
  getOpenRouterApiKey, 
  hasOpenRouterApiKey,
  getGeminiApiKey,
  hasGeminiApiKey
} from '../services/apiConfig';

describe('API Configuration & Model Defaults', () => {
  test('should default to latest Google Gemini 3.8 Flash model', () => {
    expect(DEFAULT_OPENROUTER_MODEL).toBe('google/gemini-3.8-flash');
    expect(DEFAULT_SUPERVISOR_MODEL).toBe('google/gemini-3.8-flash');
  });

  test('should return trimmed explicit custom API key when provided', () => {
    const key = getOpenRouterApiKey('  sk-or-v1-custom-key-12345  ');
    expect(key).toBe('sk-or-v1-custom-key-12345');
  });

  test('should fallback to environment variable when no argument or stored setting exists', () => {
    const originalEnv = process.env.OPENROUTER_API_KEY;
    try {
      process.env.OPENROUTER_API_KEY = 'sk-or-v1-env-fallback-key';
      const key = getOpenRouterApiKey();
      expect(key).toBe('sk-or-v1-env-fallback-key');
      expect(hasOpenRouterApiKey()).toBe(true);
    } finally {
      if (originalEnv !== undefined) {
        process.env.OPENROUTER_API_KEY = originalEnv;
      } else {
        delete process.env.OPENROUTER_API_KEY;
      }
    }
  });

  test('should return empty string when no keys are configured', () => {
    const originalEnv = process.env.OPENROUTER_API_KEY;
    try {
      process.env.OPENROUTER_API_KEY = '';
      const key = getOpenRouterApiKey('');
      expect(key).toBe('');
    } finally {
      if (originalEnv !== undefined) {
        process.env.OPENROUTER_API_KEY = originalEnv;
      }
    }
  });

  test('should resolve Google Gemini API Key from environment or explicit argument', () => {
    expect(getGeminiApiKey('AIzaSyCustomKey')).toBe('AIzaSyCustomKey');
    expect(hasGeminiApiKey()).toBe(true);

    const originalEnv = process.env.GEMINI_API_KEY;
    try {
      process.env.GEMINI_API_KEY = 'AIzaSyFallbackKey';
      expect(getGeminiApiKey()).toBe('AIzaSyFallbackKey');
    } finally {
      if (originalEnv !== undefined) {
        process.env.GEMINI_API_KEY = originalEnv;
      }
    }
  });
});