content: /*
   * Copyright 2024-2025 the original author or authors.
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   *      https://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  
  package com.alibaba.cloud.ai.studio.admin.generator.service.generator.workflow.sections;
  
  import java.util.List;
  import java.util.stream.Collectors;
  
  import com.alibaba.cloud.ai.studio.admin.generator.model.workflow.Node;
  import com.alibaba.cloud.ai.studio.admin.generator.model.workflow.NodeType;
  import com.alibaba.cloud.ai.studio.admin.generator.model.workflow.nodedata.HumanNodeData;
  import com.alibaba.cloud.ai.studio.admin.generator.service.generator.workflow.NodeSection;
  
  import org.springframework.stereotype.Component;
  
  @Component
  public class HumanNodeSection implements NodeSection<HumanNodeData> {
  
  	@Override
  	public boolean support(NodeType nodeType) {
  		return NodeType.HUMAN.equals(nodeType);
  	}
  
  	@Override
  	public String render(Node node, String varName) {
  		HumanNodeData d = (HumanNodeData) node.getData();
  		String id = node.getId();
  		StringBuilder sb = new StringBuilder();
  
  		sb.append(String.format("// —— HumanNode [%s] ——%n", id));
  
  		String condKey = d.getInterruptConditionKey();
  		// If the policy is conditioned, you need to read the boolean value from the
  		// state; Otherwise, it is always interrupted
  		String condLambda = condKey != null
  				? String.format("state -> state.value(\"%s\").map(v -> (Boolean)v).orElse(false)", condKey)
  				: "state -> true";
  
  		List<String> keys = d.getStateUpdateKeys();
  		String updateLambda;
  		if (keys != null && !keys.isEmpty()) {
  			String keyListCode = keys.stream()
  				.map(k -> "\"" + escape(k) + "\"")
  				.collect(Collectors.joining(", ", "List.of(", ")"));
  			updateLambda = String.format("state -> { java.util.Map<String, Object> raw = state.humanFeedback().data(); "
  					+ "return raw.entrySet().stream()" + ".filter(e -> %s.contains(e.getKey()))"
  					+ ".collect(java.util.stream.Collectors.toMap("
  					+ "java.util.Map.Entry::getKey, java.util.Map.Entry::getValue)); }", keyListCode);
  		}
  		else {
  			// If don't specify a key to filter, the raw feedback is simply returned
  			updateLambda = "state -> state.humanFeedback().data()";
  		}
  
  		sb.append("HumanNode ")
  			.append(varName)
  			.append(" = new HumanNode(")
  			.append("\"")
  			.append(d.getInterruptStrategy())
  			.append("\", ")
  			.append(condLambda)
  			.append(", ")
  			.append(updateLambda)
  			.append(");\n");
  
  		sb.append(
  				String.format("stateGraph.addNode(\"%s\", AsyncNodeAction.node_async(%sNode));%n%n", varName, varName));
  
  		return sb.toString();
  	}
  
  	@Override
  	public List<String> getImports() {
  		return List.of();
  	}
  
  }
  