import { firstValueFrom, of } from 'rxjs';
import { filter, timeout } from 'rxjs/operators';
import { AiAnalysisService, AiStreamState } from './ai-analysis.service';
import { CloudApiService } from '../../../app/core/services/cloud-api.service';

describe('AiAnalysisService retry lifecycle', () => {
  it('keeps the outer stream alive while a transient failure is retried', async () => {
    const promptConfig = {
      ensureLoaded: () => of([]),
      getTextSnapshot: (_key: string, fallback: string) => fallback,
      getTextForDefaultTemplate: (template: string) => template,
      getPromptKeyForTemplateText: () => undefined,
      getDefaultAiModel: () => 'deepseek-v4-flash',
      getOutputStyleInstruction: () => '',
    };
    const cloud = jasmine.createSpyObj<CloudApiService>('CloudApiService', ['runPromise']);
    cloud.runPromise.and.returnValues(Promise.reject(new Error('temporary upstream failure')), Promise.resolve({ choices: [{ message: { content: '重试成功' }, finish_reason: 'stop' }] }));
    const service = new AiAnalysisService(promptConfig as any, cloud);

    const finalState = await firstValueFrom(service.streamAnalysis('分析真实评论').pipe(
      filter((state: AiStreamState) => state.complete && !state.error),
      timeout(2_000),
    ));

    expect(cloud.runPromise).toHaveBeenCalledTimes(2);
    expect(finalState.text).toBe('重试成功');
  });
});

describe('AiAnalysisService extractAiText reasoning isolation', () => {
  let service: AiAnalysisService;

  beforeEach(() => {
    const promptConfig = {
      ensureLoaded: () => of([]),
      getTextSnapshot: (_key: string, fallback: string) => fallback,
      getTextForDefaultTemplate: (template: string) => template,
      getPromptKeyForTemplateText: () => undefined,
      getDefaultAiModel: () => 'deepseek-v4-flash',
      getOutputStyleInstruction: () => '',
    };
    service = new AiAnalysisService(promptConfig as any, jasmine.createSpyObj<CloudApiService>('CloudApiService', ['runPromise']));
  });

  it('only extracts content when both content and reasoning_content are present', () => {
    const json = {
      choices: [{
        delta: {
          content: '正式内容',
          reasoning_content: '{"type":"metric-grid","metrics":[残缺草稿',
        },
      }],
    };
    expect((service as any).extractAiText(json)).toBe('正式内容');
  });

  it('returns an empty string when only reasoning_content exists (no content fallback)', () => {
    const json = {
      choices: [{ delta: { reasoning_content: '残缺JSON草稿，无正式内容' } }],
    };
    expect((service as any).extractAiText(json)).toBe('');
  });
});