import { VideoData, ProcessedVideo } from './types'

export class VideoProcessor {
  processVideo(videoData: VideoData): ProcessedVideo {
    // In a real implementation, this would:
    // 1. Download the video file
    // 2. Process it to remove watermarks using ffmpeg or similar
    // 3. Save the processed video
    // 4. Return the processed video URL

    // For now, we'll simulate the processing
    const processedVideo: ProcessedVideo = {
      id: videoData.id,
      url: this.removeWatermarkFromUrl(videoData.downloadUrl),
      format: 'mp4',
      quality: 'hd',
      watermarkRemoved: true,
      size: this.estimateFileSize(videoData.duration),
    }

    return processedVideo
  }

  private removeWatermarkFromUrl(originalUrl: string): string {
    // In development, we'll modify the URL to indicate watermark removal
    // In production, this would return the URL of the processed video file
    if (originalUrl.includes('data:video')) {
      return originalUrl // Mock data
    }

    // For actual TikTok URLs, try to find watermark-free version
    return originalUrl.replace(/watermark/gi, 'nowm').replace(/wm/gi, 'nowm')
  }

  private estimateFileSize(duration: number): number {
    // Estimate file size based on duration (rough calculation)
    // Assuming ~1MB per 10 seconds for HD video
    return Math.round((duration / 10) * 1024 * 1024)
  }

  async downloadVideoFile(): Promise<Buffer> {
    // This would implement actual video file download
    // For now, return empty buffer
    return Buffer.alloc(0)
  }

  async removeWatermark(videoBuffer: Buffer): Promise<Buffer> {
    // This would use ffmpeg or similar to remove watermarks
    // Complex video processing would go here
    return videoBuffer
  }
}
