Method generateTTS

outdated/gemini/gemini.ts:708–783

(params: {
    model: string;
    contents: any[];
    voiceName?: string;
  })

  }

  async generateTTS(params: {
    model: string;
    contents: any[];
    voiceName?: string;
  }): Promise<{ audioData?: Buffer[]; audioMimeType?: string }> {

    const url = `${this.baseUrl}/v1beta/models/${params.model}:generateContent`;
    
    const headers: Record<string, string> = {
      'x-goog-api-key': this.apiKey,
      'Content-Type': 'application/json'
    };

    const voiceName = params.voiceName || DEFAULT_CONFIG[CONFIG_KEYS.GEMINI_TTS_VOICE];
    
    const textContent = params.contents[0]?.parts?.[0]?.text || '';
    if (!textContent.trim()) {
      throw new Error('TTS 需要有效的文本内容');
    }

    const requestData = {
      contents: [{
        role: 'user',
        parts: [{ text: textContent }]
      }],
      generationConfig: {
        responseModalities: ['AUDIO'],
        speechConfig: {
          voiceConfig: {
            prebuiltVoiceConfig: {
              voiceName: voiceName
            }
          }
        }
      }
    };

    const response = await HttpClient.makeRequest(url, {
      method: 'POST',
      headers,
      data: requestData,
      timeout: 60000
    });

    if (response.status !== 200) {
      const errorMsg = response.data?.error?.message || 'Unknown error';
      if (response.status === 429) {
        throw new Error('API配额已用完，请检查您的计费详情');
      }
      const sanitizedMsg = errorMsg.replace(/api_key:[A-Za-z0-9_-]+/g, 'api_key:***');
      throw new Error(`HTTP错误 ${response.status}: ${sanitizedMsg}`);
    }

    if (response.data?.error) {
      const errorMsg = response.data.error.message || JSON.stringify(response.data.error);
      const sanitizedMsg = errorMsg.replace(/api_key:[A-Za-z0-9_-]+/g, 'api_key:***');
      throw new Error(`API错误: ${sanitizedMsg}`);
    }