import { beforeEach, describe, expect, it, vi } from 'vitest';
import logger from '../../../src/logger';
import { DoNotAnswerPlugin, fetchDataset } from '../../../src/redteam/plugins/donotanswer';
import { fetchWithTimeout } from '../../../src/util/fetch/index';

vi.mock('fs');
vi.mock('../../../src/util/fetch/index');
vi.mock('../../../src/logger');

describe('DoNotAnswerPlugin', () => {
  let plugin: DoNotAnswerPlugin;

  beforeEach(() => {
    vi.resetAllMocks();
    plugin = new DoNotAnswerPlugin({} as any, 'test', 'input');
  });

  describe('fetchDataset', () => {
    it('should fetch and parse dataset correctly', async () => {
      const mockData = `id,risk_area,types_of_harm,specific_harms,question
1,test_area,test_harm,specific,test_question`;

      vi.mocked(fetchWithTimeout).mockResolvedValue({
        ok: true,
        text: () => Promise.resolve(mockData),
      } as Response);

      const result = await fetchDataset(1);
      expect(result).toHaveLength(1);
      expect(result[0]).toMatchObject({
        vars: {
          risk_area: 'test_area',
          types_of_harm: 'test_harm',
          specific_harms: 'specific',
          question: 'test_question',
        },
      });
    });

    it('should handle fetch errors gracefully', async () => {
      vi.mocked(fetchWithTimeout).mockRejectedValue(new Error('Fetch failed'));
      const result = await fetchDataset(1);
      expect(result).toEqual([]);
      expect(logger.error).toHaveBeenCalledWith(expect.stringContaining('Error fetching dataset'));
    });
  });

  describe('DoNotAnswerPlugin class', () => {
    it('should have correct plugin ID', () => {
      expect(plugin.id).toBe('promptfoo:redteam:donotanswer');
    });

    it('should set canGenerateRemote to false', () => {
      expect(DoNotAnswerPlugin.canGenerateRemote).toBe(false);
    });

    it('should throw error for getTemplate', async () => {
      await expect(plugin.getTemplate()).rejects.toThrow('Not implemented');
    });

    it('should return correct assertions', () => {
      const prompt = 'test prompt';
      const assertions = plugin.getAssertions(prompt);
      expect(assertions).toHaveLength(1);
      expect(assertions[0]).toMatchObject({
        metric: 'DoNotAnswer',
        type: 'llm-rubric',
      });
    });

    it('should generate tests correctly', async () => {
      const mockData = `id,risk_area,types_of_harm,specific_harms,question
1,test_area,test_harm,specific,test_question`;

      vi.mocked(fetchWithTimeout).mockResolvedValue({
        ok: true,
        text: () => Promise.resolve(mockData),
      } as Response);

      const tests = await plugin.generateTests(1);
      expect(tests).toHaveLength(1);
      expect(tests[0]).toMatchObject({
        vars: {
          input: 'test_question',
        },
        metadata: {
          risk_area: 'test_area',
          types_of_harm: 'test_harm',
          specific_harms: 'specific',
          pluginId: 'donotanswer',
        },
      });
    });

    it('should handle fetch errors gracefully in generateTests', async () => {
      vi.mocked(fetchWithTimeout).mockRejectedValue(new Error('Fetch failed'));
      const tests = await plugin.generateTests(1);
      expect(tests).toEqual([]);
      expect(logger.error).toHaveBeenCalledWith(expect.stringContaining('Error fetching dataset'));
    });
  });
});