using System;
using System.Collections.Generic;
using System.Linq;
using System.Net.Http;
using System.Text;
using System.Threading.Tasks;
using System.Net.Http;
using System.Text;

namespace OpenAIClient
{
    internal class OpenAI
    {    // 替换为你的 OpenAI API 密钥
        private const string OPENAI_API_KEY = "your-openai-api-key-here";
        // 指定模型（例如 gpt-3.5-turbo 或 gpt-4）
        private const string MODEL_NAME = "qwen3-30b-a3b";
        public static async Task<string> GetOpenAIAnswer(string question)
        {
            using (var client = new HttpClient())
            {
                // 设置 API 地址和请求头
                client.BaseAddress = new Uri("http://localhost:1234/v1/chat/completions");
                client.DefaultRequestHeaders.Add("Authorization", $"Bearer {OPENAI_API_KEY}");

                // 构建请求体（JSON 格式）
                var request = new
                {
                    model = MODEL_NAME,
                    messages = new[]
                    {
                    new { role = "user", content = question }
                },
                    temperature = 0.7, // 控制随机性（0-1）
                    max_tokens = 200   // 最大生成长度
                };

                var jsonRequest = System.Text.Json.JsonSerializer.Serialize(request);
                var content = new StringContent(jsonRequest, Encoding.UTF8, "application/json");

                // 发送 POST 请求
                var response = await client.PostAsync("", content);

                // 确保响应成功
                response.EnsureSuccessStatusCode();

                // 解析 JSON 响应
                var jsonResponse = await response.Content.ReadAsStringAsync();
                var result = System.Text.Json.JsonSerializer.Deserialize<OpenAIResponse>(jsonResponse);

                // 提取模型回答
                return result?.Choices[0].Message.Content.Trim();
            }
        }

        // 定义响应类结构（根据实际 API 响应调整）
        private class OpenAIResponse
        {
            public Choice[] Choices { get; set; }
        }

        private class Choice
        {
            public Message Message { get; set; }
        }

        private class Message
        {
            public string Content { get; set; }
        }
    }
}