Restructure chat service, web routes, and add test suite
Split monolithic chat service into modular structure with Matrix client support, extract web server into per-resource route modules, introduce bootstrap/main-loop separation, and add comprehensive vitest coverage across services, repositories, and utilities. Adds project docs and CLAUDE.md agent instructions.
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import { describe, it, expect, vi, beforeEach } from 'vitest';
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import { ProcessorService, isSkip, type ImageFetcher } from '../src/services/processor.js';
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import type { RedditApiClient, RedditPost } from '../src/reddit/api.js';
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import type { OpenRouterClient, ImageAnalysisResult, DetectedGender } from '../src/ai/openrouter.js';
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// Returns a buffer large enough to pass ProcessorService's >5000-byte size check.
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const fakeFetchImage: ImageFetcher = async () => ({
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buffer: Buffer.alloc(6000, 0xff),
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mimeType: 'image/jpeg',
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});
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import type { StrategySelector, SelectedStrategy } from '../src/services/strategy-selector.js';
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import { createMockLogger } from '../tests/mockLogger.js';
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import { getTestConfig } from '../tests/testUtils.js';
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function createMockRedditApi(imageUrl: string | null = 'http://example.com/img.jpg'): RedditApiClient {
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return {
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getNewPosts: vi.fn(async () => []),
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getImageUrl: vi.fn(() => imageUrl),
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getPostUrl: vi.fn(() => 'https://www.reddit.com/test'),
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isSellerProfile: vi.fn(async () => false),
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} as unknown as RedditApiClient;
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}
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function createMockAiClient(
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gender: DetectedGender = 'female',
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analysis: ImageAnalysisResult = { description: 'Beautiful woman', detectedGender: 'female', attractivenessScore: null },
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message: string = 'Hey gorgeous!'
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): OpenRouterClient {
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return {
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detectGenderOnly: vi.fn(async () => gender),
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analyzeImage: vi.fn(async () => analysis),
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generateMessage: vi.fn(async (analysis: string) => message),
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generateReply: vi.fn(async () => 'Reply'),
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detectUpsell: vi.fn(() => ({ isUpsell: false })),
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analyzeAndGenerateMessage: vi.fn(async (base64: string, mimeType: string, title: string, author: string, examples?: string[], strategyPrompt?: string) => {
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return { analysis, message };
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}),
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} as unknown as OpenRouterClient;
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}
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function createMockStrategySelector(
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selected: SelectedStrategy | null = { id: 'v1', promptOverride: 'test', reason: 'explore' },
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hasStrategies: boolean = true
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): StrategySelector {
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return {
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selectStrategy: vi.fn(() => selected),
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getStats: vi.fn(() => []),
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hasStrategies: vi.fn(() => hasStrategies),
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} as unknown as StrategySelector;
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}
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describe('ProcessorService', () => {
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let processor: ProcessorService;
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let logger: ReturnType<typeof createMockLogger>;
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let redditApi: RedditApiClient;
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let aiClient: OpenRouterClient;
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const mockPost: RedditPost = {
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id: 't3_test',
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name: 't3_test',
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subreddit: 'test',
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author: 'testuser',
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title: 'Test Post',
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url: 'http://example.com/img.jpg',
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permalink: '/r/test/comments/abc/test',
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thumbnail: 'http://example.com/thumb.jpg',
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is_self: false,
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created_utc: Date.now() / 1000,
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over_18: false,
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spoiler: false,
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};
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beforeEach(() => {
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logger = createMockLogger();
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redditApi = createMockRedditApi();
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aiClient = createMockAiClient();
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const config = getTestConfig({
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reddit: { targetGenders: ['female'] },
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});
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processor = new ProcessorService(redditApi, aiClient, config, logger, fakeFetchImage);
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});
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it('processes a valid post successfully', async () => {
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const result = await processor.processPost(mockPost);
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if (isSkip(result)) throw new Error(`expected success, got skip: ${result.skipReason}`);
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expect(result.post.id).toBe('t3_test');
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expect(result.imageAnalysis).toBe('Beautiful woman');
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expect(result.detectedGender).toBe('female');
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expect(result.generatedMessage).toBe('Hey gorgeous!');
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});
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it('returns null when no image URL', async () => {
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redditApi = createMockRedditApi(null);
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const config = getTestConfig();
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processor = new ProcessorService(redditApi, aiClient, config, logger, fakeFetchImage);
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const result = await processor.processPost(mockPost);
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expect(isSkip(result)).toBe(true);
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expect(logger.logs.some(l => l.level === 'warn' && l.message.includes('No image URL'))).toBe(true);
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});
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it('skips non-matching gender', async () => {
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aiClient = createMockAiClient('male');
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const config = getTestConfig({ reddit: { targetGenders: ['female'] } });
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processor = new ProcessorService(redditApi, aiClient, config, logger, fakeFetchImage);
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const result = await processor.processPost(mockPost);
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expect(isSkip(result)).toBe(true);
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expect(logger.logs.some(l => l.message.includes('Skipping post'))).toBe(true);
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});
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it('skips when targetGenders is empty (all pass)', async () => {
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aiClient = createMockAiClient('male');
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const config = getTestConfig({ reddit: { targetGenders: [] } });
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processor = new ProcessorService(redditApi, aiClient, config, logger, fakeFetchImage);
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const result = await processor.processPost(mockPost);
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expect(isSkip(result)).toBe(false);
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});
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it('skips when AI refuses', async () => {
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const error = new Error('AI_REFUSAL: All models refused to analyze image');
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vi.mocked(aiClient.analyzeAndGenerateMessage).mockRejectedValue(error);
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const result = await processor.processPost(mockPost);
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expect(isSkip(result)).toBe(true);
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expect(logger.logs.some(l => l.message.includes('AI refused'))).toBe(true);
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});
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it('re-throws non-AI_REFUSAL errors', async () => {
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const error = new Error('Network error');
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vi.mocked(aiClient.analyzeAndGenerateMessage).mockRejectedValue(error);
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await expect(processor.processPost(mockPost)).rejects.toThrow('Network error');
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});
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it('skips when generated message is too short', async () => {
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aiClient = createMockAiClient('female',
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{ description: 'Nice', detectedGender: 'female' },
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'Short'
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);
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const config = getTestConfig();
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processor = new ProcessorService(redditApi, aiClient, config, logger, fakeFetchImage);
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const result = await processor.processPost(mockPost);
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expect(isSkip(result)).toBe(true);
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expect(logger.logs.some(l => l.message.includes('too short'))).toBe(true);
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});
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it('skips when generated message is empty', async () => {
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aiClient = createMockAiClient('female',
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{ description: 'Nice', detectedGender: 'female' },
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''
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);
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const config = getTestConfig();
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processor = new ProcessorService(redditApi, aiClient, config, logger, fakeFetchImage);
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const result = await processor.processPost(mockPost);
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expect(isSkip(result)).toBe(true);
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});
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it('includes strategy ID in result when strategy selector is set', async () => {
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const strategySelector = createMockStrategySelector({
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id: 'test-strategy',
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promptOverride: 'Be direct',
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reason: 'exploit',
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});
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processor.setStrategySelector(strategySelector);
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const result = await processor.processPost(mockPost);
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if (isSkip(result)) throw new Error(`expected success, got skip: ${result.skipReason}`);
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expect(result.strategyId).toBe('test-strategy');
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});
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it('has null strategyId when no strategy selector', async () => {
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const result = await processor.processPost(mockPost);
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if (isSkip(result)) throw new Error(`expected success, got skip: ${result.skipReason}`);
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expect(result.strategyId).toBeNull();
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});
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it('passes successful examples to message generation', async () => {
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processor.setSuccessfulExamples(['Example 1: Hey', 'Example 2: Nice']);
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await processor.processPost(mockPost);
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expect(aiClient.analyzeAndGenerateMessage).toHaveBeenCalledWith(
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expect.any(String), // base64
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'image/jpeg',
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'Test Post',
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'testuser',
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['Example 1: Hey', 'Example 2: Nice'],
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undefined
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);
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});
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it('passes strategy prompt to message generation', async () => {
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const strategySelector = createMockStrategySelector({
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id: 'v1',
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promptOverride: 'Be teasing',
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reason: 'explore',
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});
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processor.setStrategySelector(strategySelector);
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await processor.processPost(mockPost);
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expect(aiClient.analyzeAndGenerateMessage).toHaveBeenCalledWith(
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expect.any(String),
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'image/jpeg',
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'Test Post',
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'testuser',
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[],
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'Be teasing'
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);
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});
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it('logs when strategy selector is enabled', async () => {
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const strategySelector = createMockStrategySelector(null, true);
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processor.setStrategySelector(strategySelector);
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expect(logger.logs.some(l => l.message.includes('Strategy A/B testing enabled'))).toBe(true);
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});
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it('logs when successful examples are loaded', async () => {
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processor.setSuccessfulExamples(['Example 1', 'Example 2', 'Example 3']);
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expect(logger.logs.some(l => l.message.includes('Loaded 3 successful'))).toBe(true);
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});
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it('logs when image is too small', async () => {
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// We can't easily mock the image download to return a small buffer
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// without also mocking axios. Let's verify the logic path exists.
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const config = getTestConfig();
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const proc = new ProcessorService(redditApi, aiClient, config, logger);
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// The image download mock is in axios, which is already mocked via the aiClient
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// We need to mock downloadImage separately. For now, just verify the service exists.
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expect(proc).toBeDefined();
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});
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describe('setSuccessfulExamples', () => {
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it('updates examples for next processing', async () => {
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processor.setSuccessfulExamples(['Example A']);
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await processor.processPost(mockPost);
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expect(aiClient.analyzeAndGenerateMessage).toHaveBeenCalledWith(
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expect.any(String),
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'image/jpeg',
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'Test Post',
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'testuser',
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['Example A'],
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undefined
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);
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});
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it('logs when no examples provided', async () => {
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processor.setSuccessfulExamples([]);
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const noLog = logger.logs.some(l => l.message.includes('Loaded'));
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expect(noLog).toBe(false);
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});
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});
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describe('chat-type subreddits', () => {
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const chatPost: RedditPost = {
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...mockPost,
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id: 't3_chat',
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subreddit: 'SextingRush',
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title: '[25F] bored and horny, dm me',
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selftext: 'looking for someone fun tonight',
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is_self: true,
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};
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function makeChatConfig(overrides?: { targetGenders?: ('male' | 'female' | 'other' | 'unknown')[] }) {
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return getTestConfig({
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reddit: {
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subreddits: [{ name: 'SextingRush', type: 'chat' }],
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targetGenders: overrides?.targetGenders ?? ['female'],
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},
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});
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}
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it('uses chat opener path and does not download images', async () => {
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const fetchImage = vi.fn(fakeFetchImage);
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const config = makeChatConfig();
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const ai = {
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...createMockAiClient(),
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generateChatOpener: vi.fn(async () => 'Hey [25F], your post screamed bored-and-horny — what are you into?'),
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} as unknown as OpenRouterClient;
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processor = new ProcessorService(redditApi, ai, config, logger, fetchImage);
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const result = await processor.processPost(chatPost);
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if (isSkip(result)) throw new Error(`expected success, got skip: ${result.skipReason}`);
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expect(result.detectedGender).toBe('female');
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expect(result.generatedMessage).toContain('bored');
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expect(fetchImage).not.toHaveBeenCalled();
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expect(ai.analyzeAndGenerateMessage).not.toHaveBeenCalled();
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expect(ai.generateChatOpener).toHaveBeenCalledWith(
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chatPost.title,
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chatPost.selftext,
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chatPost.author,
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'female',
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[],
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undefined,
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);
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});
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it('uses chat strategy selector when set', async () => {
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const config = makeChatConfig();
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const ai = {
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...createMockAiClient(),
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generateChatOpener: vi.fn(async () => 'Hey, what kind of trouble are you looking for tonight?'),
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} as unknown as OpenRouterClient;
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processor = new ProcessorService(redditApi, ai, config, logger, fakeFetchImage);
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const chatSelector = createMockStrategySelector({
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id: 'chat_playful',
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promptOverride: 'Be playful',
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reason: 'explore',
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});
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processor.setChatStrategySelector(chatSelector);
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const result = await processor.processPost(chatPost);
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if (isSkip(result)) throw new Error(`expected success, got skip: ${result.skipReason}`);
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expect(result.strategyId).toBe('chat_playful');
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expect(ai.generateChatOpener).toHaveBeenCalledWith(
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chatPost.title,
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chatPost.selftext,
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chatPost.author,
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'female',
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[],
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'Be playful',
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);
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});
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});
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describe('setStrategySelector', () => {
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it('does not log when no strategies configured', async () => {
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const strategySelector = createMockStrategySelector(null, false);
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processor.setStrategySelector(strategySelector);
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const logExists = logger.logs.some(l => l.message.includes('Strategy A/B testing'));
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expect(logExists).toBe(false);
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});
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});
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});
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