import OpenAI from 'openai';

export class VoiceService {
  private readonly openai: OpenAI;

  constructor() {
    const apiKey = process.env.OPENAI_API_KEY;
    if (!apiKey) {
      throw new Error('OPENAI_API_KEY environment variable is not set');
    }
    this.openai = new OpenAI({ apiKey });
  }

  async transcribeAudio(audioBuffer: Buffer): Promise<string> {
    try {
      const response = await this.openai.audio.transcriptions.create({
        file: new File([audioBuffer], 'audio.wav', { type: 'audio/wav' }),
        model: 'whisper-1',
      });

      return response.text;
    } catch (error) {
      console.error('Error transcribing audio:', error);
      throw new Error('Failed to transcribe audio');
    }
  }
}