first (part 3: src directory)

src/modules/social-poster/twitter.service.ts

@@ -0,0 +1,87 @@
+import { Injectable, Logger } from '@nestjs/common';
+import { ConfigService } from '@nestjs/config';
+import * as fs from 'fs';
+
+@Injectable()
+export class TwitterService {
+  private readonly logger = new Logger(TwitterService.name);
+  private client: any = null;
+  private isEnabled = false;
+
+  constructor(private readonly configService: ConfigService) {
+    const apiKey = this.configService.get<string>('TWITTER_API_KEY');
+    const apiSecret = this.configService.get<string>('TWITTER_API_SECRET');
+    const accessToken = this.configService.get<string>('TWITTER_ACCESS_TOKEN');
+    const accessSecret = this.configService.get<string>(
+      'TWITTER_ACCESS_SECRET',
+    );
+
+    if (apiKey && apiSecret && accessToken && accessSecret) {
+      void this.initClient(apiKey, apiSecret, accessToken, accessSecret);
+    } else {
+      this.logger.warn(
+        '⚠️ Twitter API keys not configured. Set TWITTER_API_KEY, TWITTER_API_SECRET, TWITTER_ACCESS_TOKEN, TWITTER_ACCESS_SECRET',
+      );
+    }
+  }
+
+  private async initClient(
+    apiKey: string,
+    apiSecret: string,
+    accessToken: string,
+    accessSecret: string,
+  ) {
+    try {
+      const { TwitterApi } = await import('twitter-api-v2');
+      this.client = new TwitterApi({
+        appKey: apiKey,
+        appSecret: apiSecret,
+        accessToken,
+        accessSecret,
+      });
+      this.isEnabled = true;
+      this.logger.log('✅ Twitter API client initialized');
+    } catch (error) {
+      this.logger.error('Failed to initialize Twitter client', error);
+    }
+  }
+
+  get available(): boolean {
+    return this.isEnabled && this.client !== null;
+  }
+
+  /**
+   * Post a tweet with an image.
+   *
+   * @param text - Tweet text
+   * @param imagePath - Absolute path to the image file
+   * @returns Tweet ID
+   */
+  async postWithImage(text: string, imagePath: string): Promise<string | null> {
+    if (!this.available) {
+      this.logger.warn('Twitter not available, skipping post');
+      return null;
+    }
+
+    try {
+      // Step 1: Upload media via v1.1
+      const mediaData = fs.readFileSync(imagePath);
+      const mediaId = await this.client.v1.uploadMedia(mediaData, {
+        mimeType: 'image/png',
+      });
+
+      // Step 2: Create tweet via v2
+      const tweet = await this.client.v2.tweet({
+        text,
+        media: { media_ids: [mediaId] },
+      });
+
+      const tweetId = tweet.data?.id;
+      this.logger.log(`✅ Tweet posted: ${tweetId}`);
+      return tweetId || null;
+    } catch (error) {
+      this.logger.error(`❌ Twitter post failed: ${error.message}`);
+      return null;
+    }
+  }
+}