// background/background.js

// 监听来自 content.js 的消息转发
chrome.runtime.onMessage.addListener((request, sender, sendResponse) => {
  if (request.type === "AI_TRANSLATE") {
    // 1. 同时获取 AI 配置信息和语音开关状态
    chrome.storage.sync.get(['aiConfig', 'voiceEnabled'], async (result) => {
      const config = result.aiConfig;
      const voiceEnabled = result.voiceEnabled || false; // 默认为关闭

      if (!config || !config.apiKey) {
        sendResponse({ success: false, error: "请先在扩展图标中配置 API Key" });
        return;
      }

      try {
        // 2. 向 AI 平台发起 fetch 请求
        const response = await fetch(`${config.apiUrl}/chat/completions`, {
          method: 'POST',
          headers: {
            'Content-Type': 'application/json',
            'Authorization': `Bearer ${config.apiKey}`
          },
          body: JSON.stringify({
            model: config.modelName,
            messages: [
              { role: "system", content: request.systemPrompt },
              { role: "user", content: request.userInput }
            ],
            temperature: 0.1
          })
        });

        if (!response.ok) {
          const errorData = await response.json();
          throw new Error(errorData.error?.message || "网络请求失败");
        }

        const data = await response.json();
        
        // 3. 将 AI 结果和语音开关状态一并返回给 content.js
        sendResponse({ 
          success: true, 
          data: data, 
          voiceEnabled: voiceEnabled 
        });

      } catch (err) {
        console.error("AI Request Error:", err);
        sendResponse({ success: false, error: err.message });
      }
    });

    // 返回 true 表示我们将异步发送响应
    return true; 
  }
});