MAF1/MAF1.Web/Program.cs

// 网页入口：Minimal API + wwwroot 静态文件。浏览器只调 REST，不接触 API Key。
// 学习顺序建议：/api/catalog → 画布 → POST /api/run → 若 needsDecision 再 POST /api/run/{id}/decide。
using MAF1.Decisions;
using MAF1.Utils;
using MAF1.Web;

WindowsConsole.EnableUtf8();

WebApplicationBuilder builder = WebApplication.CreateBuilder(args);
builder.WebHost.UseUrls("http://127.0.0.1:5288");
builder.Services.ConfigureHttpJsonOptions(options =>
{
    options.SerializerOptions.PropertyNamingPolicy = System.Text.Json.JsonNamingPolicy.CamelCase;
});
builder.Services.AddSingleton<AgentRuntime>();

WebApplication app = builder.Build();
app.UseDefaultFiles();
app.UseStaticFiles();

// 左侧节点列表：系统内置 + 扫描到的插件。
app.MapGet("/api/catalog", (AgentRuntime runtime) =>
{
    var snapshot = runtime.Catalog.Load();
    return new
    {
        pluginsRoot = snapshot.PluginsRoot,
        system = snapshot.System,
        plugins = snapshot.Plugins,
        nodes = snapshot.Nodes,
        issues = snapshot.Issues,
    };
});
// 给下拉框用的凭据列表（不含原始 Key）。
app.MapGet("/api/credentials", (AgentRuntime runtime) => runtime.Credentials.ListPublic());
app.MapGet("/api/status", (AgentRuntime runtime) => new
{
    weatherProvider = runtime.WeatherProvider,
    pluginsRoot = runtime.PluginsRoot,
});
// 提交画布 JSON。可能一次跑完，也可能返回 status=needsDecision。
app.MapPost("/api/run", (WorkflowGraph graph, AgentRuntime runtime, CancellationToken cancellationToken)
    => runtime.Runner.RunAsync(graph, cancellationToken));
// 超时后前端轮询最终结果。
app.MapGet("/api/run/{runId}", (string runId, AgentRuntime runtime) =>
{
    WorkflowRunResult? result = runtime.Runner.Get(runId);
    return result is null
        ? Results.NotFound(new WorkflowRunResult { Ok = false, Status = WorkflowRunStatus.Failed, Error = "找不到这次运行。" })
        : Results.Ok(result);
});
// 用户点确认：optionId=stop 或 query-cities（可带 text 城市名）。
app.MapPost("/api/run/{runId}/decide", (string runId, DecisionAnswer answer, AgentRuntime runtime, CancellationToken cancellationToken)
    => runtime.Runner.DecideAsync(runId, answer, cancellationToken));

Console.WriteLine("可视化编排: http://127.0.0.1:5288");
app.Run();