wehub-resource-sync
38 lines
1.5 KiB
C#
38 lines
1.5 KiB
C#
// Copyright (c) Microsoft. All rights reserved.
|
|
|
|
using Microsoft.Extensions.DependencyInjection;
|
|
using Microsoft.SemanticKernel;
|
|
using Microsoft.SemanticKernel.Agents;
|
|
using Microsoft.SemanticKernel.ChatCompletion;
|
|
|
|
namespace Step04;
|
|
|
|
/// <summary>
|
|
/// Convenience extensions for agent based process patterns.
|
|
/// </summary>
|
|
internal static class KernelExtensions
|
|
{
|
|
/// <summary>
|
|
/// Return chat history from a singleton <see cref="IChatHistoryProvider"/>.
|
|
/// </summary>
|
|
public static IChatHistoryProvider GetHistory(this Kernel kernel) =>
|
|
kernel.Services.GetRequiredService<IChatHistoryProvider>();
|
|
|
|
/// <summary>
|
|
/// Access an agent as a keyed service.
|
|
/// </summary>
|
|
public static TAgent GetAgent<TAgent>(this Kernel kernel, string key) where TAgent : Agent =>
|
|
kernel.Services.GetRequiredKeyedService<TAgent>(key);
|
|
|
|
/// <summary>
|
|
/// Summarize chat history using reducer accessed as a keyed service.
|
|
/// </summary>
|
|
public static async Task<string> SummarizeHistoryAsync(this Kernel kernel, string key, IReadOnlyList<ChatMessageContent> history)
|
|
{
|
|
ChatHistorySummarizationReducer reducer = kernel.Services.GetRequiredKeyedService<ChatHistorySummarizationReducer>(key);
|
|
IEnumerable<ChatMessageContent>? reducedResponse = await reducer.ReduceAsync(history);
|
|
ChatMessageContent summary = reducedResponse?.First() ?? throw new InvalidDataException("No summary available");
|
|
return summary.ToString();
|
|
}
|
|
}
|