MAF1/Orchestration/WorkflowOrchestration.cs

using Microsoft.Agents.AI;
using Microsoft.Agents.AI.Workflows;

namespace MAF1.Orchestration;

public static class WorkflowOrchestration
{
    public static async Task RunAsync(Workflow workflow, string modeLabel, string filePath)
    {
        Console.WriteLine(modeLabel);
        Console.WriteLine();

        string prompt = $"请读取这个文件并提取有效城市名：{filePath}";
        await using StreamingRun run = await InProcessExecution.RunStreamingAsync(workflow, prompt);
        await run.TrySendMessageAsync(new TurnToken(emitEvents: true));

        string? lastExecutorId = null;
        await foreach (WorkflowEvent evt in run.WatchStreamAsync())
        {
            switch (evt)
            {
                case AgentResponseUpdateEvent update:
                    if (update.ExecutorId != lastExecutorId)
                    {
                        Console.WriteLine();
                        Console.Write($"{update.ExecutorId}: ");
                        lastExecutorId = update.ExecutorId;
                    }

                    if (!string.IsNullOrEmpty(update.Update.Text))
                    {
                        Console.Write(update.Update.Text);
                    }

                    break;

                case AgentResponseEvent:
                    break;

                case WorkflowOutputEvent output when output.As<string>() is string text:
                    Console.WriteLine();
                    Console.WriteLine();
                    Console.WriteLine($"[工作流 / {output.ExecutorId}] {text}");
                    break;
            }
        }

        Console.WriteLine();
    }
}