import type { ModelMessage } from 'ai';
import { describe, expect, test } from 'vitest';
import { createThinkAndPrepAgent } from './think-and-prep-agent';

describe('Think and Prep Agent Integration Tests', () => {
  test('should generate response for data analysis query with conversation history', async () => {
    const messages: ModelMessage[] = [
      { role: 'user', content: 'What are the top 5 customers by revenue?' },
    ];

    try {
      const thinkAndPrepAgent = createThinkAndPrepAgent({
        messageId: 'test-message-123',
        sql_dialect_guidance: 'postgresql',
        chatId: 'test-chat-123',
        organizationId: 'test-organization-123',
        userId: 'test-user-123',
        dataSourceId: 'test-data-source-123',
        dataSourceSyntax: 'postgresql',
        datasets: [],
      });

      const streamResult = await thinkAndPrepAgent.stream({
        messages,
      });

      let response = '';
      for await (const chunk of streamResult.fullStream) {
        if (chunk.type === 'text-delta') {
          response += chunk.text;
        }
      }

      expect(response).toBeDefined();
      expect(typeof response).toBe('string');
    } catch (error) {
      console.error('Error during agent execution:', error);
      throw error;
    }
  }, 300000);
});