import json

import requests

from Config.Config import GPTNB_API_KEY


class ModelInteractor:
    def __init__(self, api_key=GPTNB_API_KEY, api_url="https://goapi.gptnb.ai/v1/chat/completions"):
        self.api_key = api_key
        self.api_url = api_url
        self.headers = {
            "Content-Type": "application/json",
            "Authorization": f"Bearer {self.api_key}"
        }

    def stream_request(self, model, prompt, temperature=0.7):
        """
        发送流式请求到模型API

        参数:
        - model: 模型名称
        - prompt: 用户提示词
        - temperature: 温度参数，控制输出的随机性

        返回:
        - 无返回值，直接打印流式响应
        """
        payload = {
            "model": model,
            "messages": [{
                "role": "user",
                "content": prompt
            }],
            "temperature": temperature,
            "stream": True
        }

        try:
            response = requests.post(
                self.api_url,
                headers=self.headers,
                data=json.dumps(payload),
                stream=True,
                timeout=30
            )
            response.raise_for_status()

            print(f"使用模型 {model} 的流式响应内容: ")
            for chunk in response.iter_content(chunk_size=None):
                if chunk:
                    chunk_data = chunk.decode('utf-8', errors='replace')

                    for line in chunk_data.splitlines():
                        line = line.strip()
                        if not line:
                            continue

                        if line == 'data: [DONE]':
                            print("\n流式响应结束")
                            return

                        if line.startswith('data: '):
                            line = line[6:]

                        try:
                            data = json.loads(line)
                            if 'choices' in data and len(data['choices']) > 0:
                                delta = data['choices'][0].get('delta', {})
                                content = delta.get('content', '')
                                if content and content != '\n':
                                    print(content, end='', flush=True)
                        except json.JSONDecodeError as e:
                            print(f"[调试] JSON解析错误: {e}, 内容: {line}")

        except requests.exceptions.RequestException as e:
            print(f"请求发生错误: {e}")