77 lines
3.5 KiB
C#
77 lines
3.5 KiB
C#
using MAF1.Decisions;
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using Microsoft.Agents.AI;
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using Microsoft.Agents.AI.Workflows;
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using MAF1.Agents.FileCity;
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namespace MAF1.Workflows;
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/// <summary>
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/// 用 Microsoft.Agents.AI.Workflows 拼「抽城市 → 查天气」两张对照图。
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/// 建议对照 BuildNodeCondition / BuildEdgeCondition：前者 if 在 CityGate 里，后者 if 在边上。
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/// RequestPort 是官方的「向外要一次人工输入」端口，对应网页的 needsDecision。
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/// </summary>
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public static class CityWeatherWorkflow
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{
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/// <summary>
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/// 节点内判断：FileCity → CityGate。有城市则 Gate 直接催 Weather；没有则发 DecisionRequest。
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/// </summary>
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public static Workflow BuildNodeCondition(AIAgent fileCityAgent, AIAgent weatherAgent, int decisionTimeoutSeconds)
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{
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(ExecutorBinding fileCity, ExecutorBinding weather) = BindAgents(fileCityAgent, weatherAgent);
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CityGateExecutor gate = new(decisionTimeoutSeconds);
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RequestPort cityDecision = RequestPort.Create<DecisionRequest, DecisionAnswer>("CityDecision");
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ApplyCityDecisionExecutor apply = new();
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ToWeatherPromptExecutor toWeather = new();
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return new WorkflowBuilder(fileCity)
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.AddEdge(fileCity, gate)
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.AddEdge(gate, weather)
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.AddEdge(gate, cityDecision)
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.AddEdge(cityDecision, apply)
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.AddEdge<CityExtraction>(apply, toWeather, extraction => extraction is { HasValidCities: true })
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.AddEdge(toWeather, weather)
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.WithOutputFrom(apply, weather)
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.WithName("CityWeather-Node")
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.Build();
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}
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/// <summary>
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/// 边条件：Parse 之后两条边，condition 看 HasValidCities。没有城市走 Ask → RequestPort，而不是直接结束。
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/// </summary>
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public static Workflow BuildEdgeCondition(AIAgent fileCityAgent, AIAgent weatherAgent, int decisionTimeoutSeconds)
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{
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(ExecutorBinding fileCity, ExecutorBinding weather) = BindAgents(fileCityAgent, weatherAgent);
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CityParseExecutor parse = new();
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ToWeatherPromptExecutor toWeather = new();
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AskCityDecisionExecutor ask = new(decisionTimeoutSeconds);
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RequestPort cityDecision = RequestPort.Create<DecisionRequest, DecisionAnswer>("CityDecision");
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ApplyCityDecisionExecutor apply = new();
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return new WorkflowBuilder(fileCity)
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.AddEdge(fileCity, parse)
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.AddEdge<CityExtraction>(parse, toWeather, extraction => extraction is { HasValidCities: true })
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.AddEdge<CityExtraction>(parse, ask, extraction => extraction is not { HasValidCities: true })
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.AddEdge(ask, cityDecision)
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.AddEdge(cityDecision, apply)
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.AddEdge<CityExtraction>(apply, toWeather, extraction => extraction is { HasValidCities: true })
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.AddEdge(toWeather, weather)
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.WithOutputFrom(apply, weather)
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.WithName("CityWeather-Edge")
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.Build();
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}
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/// <summary>把 AIAgent 嵌进 Workflow。ForwardIncomingMessages=false 避免把上游闲聊原样转给下游。</summary>
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private static (ExecutorBinding FileCity, ExecutorBinding Weather) BindAgents(AIAgent fileCityAgent, AIAgent weatherAgent)
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{
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AIAgentHostOptions agentOptions = new()
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{
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ForwardIncomingMessages = false,
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ReassignOtherAgentsAsUsers = true,
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EmitAgentUpdateEvents = true,
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EmitAgentResponseEvents = true,
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};
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return (fileCityAgent.BindAsExecutor(agentOptions), weatherAgent.BindAsExecutor(agentOptions));
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}
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}
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