Yi.Admin/Yi.Abp.Net8/module/ai-stock/Yi.Framework.Stock.Domain/Managers/SemanticKernel/SemanticKernelClient.cs

using Microsoft.Extensions.Options;
using Microsoft.SemanticKernel;
using Microsoft.SemanticKernel.ChatCompletion;
using Microsoft.SemanticKernel.Connectors.OpenAI;
using Volo.Abp.DependencyInjection;

namespace Yi.Framework.Stock.Domain.Managers;

public class SemanticKernelClient:ITransientDependency
{
    private Kernel Kernel { get; }
    private readonly IKernelBuilder _kernelBuilder;
    private SemanticKernelOptions Options { get; }

    public SemanticKernelClient(IOptions<SemanticKernelOptions> semanticKernelOption)
    {
        Options = semanticKernelOption.Value;
        _kernelBuilder = Kernel.CreateBuilder();
        RegisterChatCompletion();
        Kernel = _kernelBuilder.Build();
        RegisterDefautlPlugins();
    }

    /// <summary>
    /// 注册
    /// </summary>
    private void RegisterChatCompletion()
    {
        _kernelBuilder.AddOpenAIChatCompletion(
            modelId: Options.ModelId,
            apiKey: Options.ApiKey,
            httpClient: new HttpClient() { BaseAddress = new Uri(Options.Endpoint) });
    }

    /// <summary>
    /// 插件注册
    /// </summary>
    private void RegisterDefautlPlugins()
    {
        //动态导入插件
        // this.Kernel.ImportPluginFromPromptDirectory(System.IO.Path.Combine("wwwroot", "plugin","stock"),"stock");
    }

    /// <summary>
    /// 自定义插件
    /// </summary>
    /// <param name="pluginName"></param>
    /// <typeparam name="TPlugin"></typeparam>
    public void RegisterPlugins<TPlugin>(string pluginName)
    {
        this.Kernel.Plugins.AddFromType<TPlugin>(pluginName);
    }


    /// <summary>
    /// 执行插件
    /// </summary>
    /// <param name="input"></param>
    /// <param name="pluginName"></param>
    /// <param name="functionName"></param>
    /// <returns></returns>
    public async Task<string> InovkerFunctionAsync(string input, string pluginName, string functionName)
    {
        KernelFunction jsonFun = this.Kernel.Plugins.GetFunction(pluginName, functionName);
        var result = await this.Kernel.InvokeAsync(function: jsonFun, new KernelArguments() { ["input"] = input });
        return result.GetValue<string>();
    }

    /// <summary>
    /// 聊天对话,调用方法
    /// </summary>
    /// <returns></returns>
    public async  Task<IReadOnlyList<ChatMessageContent>>  ChatCompletionAsync(string question)
    {
        OpenAIPromptExecutionSettings openAIPromptExecutionSettings = new()
        {
            FunctionChoiceBehavior = FunctionChoiceBehavior.Auto(),
            MaxTokens = Options.MaxTokens
        };

        var chatCompletionService = this.Kernel.GetRequiredService<IChatCompletionService>();

        var results =await chatCompletionService.GetChatMessageContentsAsync(
            question,
            executionSettings: openAIPromptExecutionSettings,
            kernel: Kernel);
        return results;
    }
}