Media Campaign Automation in Telegram

# Create bot with BotFather
/newbot
Bot Name: MediaCampaignBot
Username: your_campaign_bot

# Required permissions:
- can_send_messages: true
- can_send_media_messages: true
- can_send_documents: true
- can_send_photos: true
- can_send_videos: true

media_campaigns/
├── images/
│   ├── products/        # 1280x1280, <5MB JPEG
│   ├── banners/         # 1920x1080, <10MB
│   └── thumbnails/      # 320x320, <1MB
├── videos/
│   ├── promotional/     # MP4, H.264, <50MB
│   └── tutorials/       # 720p, 1-3min duration
└── documents/
    ├── catalogs/        # PDF, <20MB
    └── guides/          # DOCX, <10MB

import TelegramBot from 'node-telegram-bot-api';
import fs from 'fs';

const bot = new TelegramBot(process.env.BOT_TOKEN);

class MediaCampaign {
  constructor(name, mediaList, audienceList) {
    this.name = name;
    this.mediaList = mediaList;
    this.audienceList = audienceList;
    this.batchSize = 50;
    this.delayMs = 1000;
  }

  async sendMediaBatch(batch, mediaItem) {
    const promises = batch.map(async (chatId) => {
      try {
        if (mediaItem.type === 'photo') {
          return await bot.sendPhoto(chatId, mediaItem.path, {
            caption: mediaItem.caption
          });
        } else if (mediaItem.type === 'video') {
          return await bot.sendVideo(chatId, mediaItem.path, {
            caption: mediaItem.caption
          });
        }
      } catch (error) {
        console.error(`Failed to send to ${chatId}:`, error);
        return null;
      }
    });
    
    return Promise.allSettled(promises);
  }

  async executeCampaign() {
    for (const mediaItem of this.mediaList) {
      const batches = this.chunkArray(this.audienceList, this.batchSize);
      
      for (const batch of batches) {
        await this.sendMediaBatch(batch, mediaItem);
        await this.delay(this.delayMs);
      }
    }
  }
}

class CampaignAnalytics {
  constructor(campaignId) {
    this.campaignId = campaignId;
    this.metrics = {
      sent: 0,
      delivered: 0,
      failed: 0,
      viewed: 0,
      clicked: 0
    };
  }

  trackDelivery(status, chatId) {
    this.metrics.sent++;
    if (status === 'success') {
      this.metrics.delivered++;
    } else {
      this.metrics.failed++;
    }
    
    // Log to database
    this.saveMetric('delivery', { status, chatId, timestamp: Date.now() });
  }

  generateReport() {
    const deliveryRate = (this.metrics.delivered / this.metrics.sent) * 100;
    const failureRate = (this.metrics.failed / this.metrics.sent) * 100;
    
    return {
      campaignId: this.campaignId,
      deliveryRate: deliveryRate.toFixed(2) + '%',
      failureRate: failureRate.toFixed(2) + '%',
      totalSent: this.metrics.sent,
      ...this.metrics
    };
  }
}