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.dsl.converter;
  
  import java.util.List;
  import java.util.Map;
  import java.util.function.BiConsumer;
  import java.util.regex.Matcher;
  import java.util.regex.Pattern;
  import java.util.stream.Collectors;
  import java.util.stream.Stream;
  
  import com.alibaba.cloud.ai.studio.admin.generator.model.VariableSelector;
  import com.alibaba.cloud.ai.studio.admin.generator.model.workflow.NodeType;
  import com.alibaba.cloud.ai.studio.admin.generator.model.workflow.nodedata.KnowledgeRetrievalNodeData;
  import com.alibaba.cloud.ai.studio.admin.generator.service.dsl.AbstractNodeDataConverter;
  import com.alibaba.cloud.ai.studio.admin.generator.service.dsl.DSLDialectType;
  
  import com.alibaba.cloud.ai.studio.admin.generator.utils.MapReadUtil;
  import com.fasterxml.jackson.core.JsonProcessingException;
  import org.springframework.stereotype.Component;
  
  @Component
  public class KnowledgeRetrievalNodeDataConverter extends AbstractNodeDataConverter<KnowledgeRetrievalNodeData> {
  
  	@Override
  	public Boolean supportNodeType(NodeType nodeType) {
  		return NodeType.RETRIEVER.equals(nodeType);
  	}
  
  	@Override
  	protected List<DialectConverter<KnowledgeRetrievalNodeData>> getDialectConverters() {
  		return Stream.of(KnowledgeRetrievalNodeConverter.values())
  			.map(KnowledgeRetrievalNodeConverter::dialectConverter)
  			.collect(Collectors.toList());
  	}
  
  	private enum KnowledgeRetrievalNodeConverter {
  
  		DIFY(new DialectConverter<>() {
  			@Override
  			public Boolean supportDialect(DSLDialectType dialect) {
  				return DSLDialectType.DIFY.equals(dialect);
  			}
  
  			@Override
  			public KnowledgeRetrievalNodeData parse(Map<String, Object> data) {
  				KnowledgeRetrievalNodeData nodeData = new KnowledgeRetrievalNodeData();
  				nodeData.setDialectType(DSLDialectType.DIFY);
  				// 获取必要信息
  				Integer topK = MapReadUtil.getMapDeepValue(data, Integer.class, "multiple_retrieval_config", "top_k");
  				Double threshold = MapReadUtil.getMapDeepValue(data, Double.class, "multiple_retrieval_config",
  						"score_threshold");
  				List<String> knowledgeBaseIds = MapReadUtil
  					.safeCastToList(MapReadUtil.getMapDeepValue(data, List.class, "dataset_ids"), String.class);
  				List<String> inputParams = MapReadUtil.safeCastToList(
  						MapReadUtil.getMapDeepValue(data, List.class, "query_variable_selector"), String.class);
  				if (inputParams != null && inputParams.size() >= 2) {
  					nodeData.setInputs(List.of(new VariableSelector(inputParams.get(0), inputParams.get(1))));
  				}
  				else {
  					nodeData.setInputs(List.of(new VariableSelector("sys", "query")));
  				}
  
  				// 设置信息
  				nodeData.setTopK(topK);
  				nodeData.setThreshold(threshold);
  				nodeData.setKnowledgeBaseIds(knowledgeBaseIds);
  				return nodeData;
  			}
  
  			@Override
  			public Map<String, Object> dump(KnowledgeRetrievalNodeData nd) {
  				throw new UnsupportedOperationException();
  			}
  		}), STUDIO(new DialectConverter<>() {
  			@Override
  			public Boolean supportDialect(DSLDialectType dialectType) {
  				return DSLDialectType.STUDIO.equals(dialectType);
  			}
  
  			private static final Pattern VAR_TEMPLATE_PATTERN = Pattern.compile("\\$\\{(\\w+)\\.(\\w+)}");
  
  			@Override
  			public KnowledgeRetrievalNodeData parse(Map<String, Object> data) throws JsonProcessingException {
  				KnowledgeRetrievalNodeData nodeData = new KnowledgeRetrievalNodeData();
  				nodeData.setDialectType(DSLDialectType.STUDIO);
  				// 获取必要信息
  				Integer topK = MapReadUtil.getMapDeepValue(data, Integer.class, "config", "node_param", "top_k");
  				Double threshold = MapReadUtil.getMapDeepValue(data, Double.class, "config", "node_param",
  						"similarity_threshold");
  				List<String> knowledgeBaseIds = MapReadUtil.safeCastToList(
  						MapReadUtil.getMapDeepValue(data, List.class, "config", "node_param", "knowledge_base_ids"),
  						String.class);
  				List<Map<String, Object>> inputParams = MapReadUtil
  					.safeCastToListWithMap(MapReadUtil.getMapDeepValue(data, String.class, "config", "input_params"));
  				// Studio DSL 此值是一个模板值
  				String inputKey;
  				if (inputParams != null && !inputParams.isEmpty()) {
  					inputKey = inputParams.get(0).get("value").toString();
  				}
  				else {
  					inputKey = "${sys.query}";
  				}
  				Matcher matcher = VAR_TEMPLATE_PATTERN.matcher(inputKey);
  				if (matcher.find()) {
  					nodeData.setInputs(List.of(new VariableSelector(matcher.group(1), matcher.group(2))));
  				}
  				else {
  					nodeData.setInputs(List.of(new VariableSelector("sys", "query")));
  				}
  
  				// 设置信息
  				nodeData.setTopK(topK);
  				nodeData.setThreshold(threshold);
  				nodeData.setKnowledgeBaseIds(knowledgeBaseIds);
  				return nodeData;
  			}
  
  			@Override
  			public Map<String, Object> dump(KnowledgeRetrievalNodeData nodeData) {
  				throw new UnsupportedOperationException();
  			}
  		}), CUSTOM(defaultCustomDialectConverter(KnowledgeRetrievalNodeData.class));
  
  		private final DialectConverter<KnowledgeRetrievalNodeData> converter;
  
  		KnowledgeRetrievalNodeConverter(DialectConverter<KnowledgeRetrievalNodeData> converter) {
  			this.converter = converter;
  		}
  
  		public DialectConverter<KnowledgeRetrievalNodeData> dialectConverter() {
  			return converter;
  		}
  
  	}
  
  	@Override
  	public String generateVarName(int count) {
  		return "retrievalNode" + count;
  	}
  
  	@Override
  	public BiConsumer<KnowledgeRetrievalNodeData, Map<String, String>> postProcessConsumer(DSLDialectType dialectType) {
  		return switch (dialectType) {
  			case DIFY, STUDIO -> this.emptyProcessConsumer().andThen((nodeData, idToVarName) ->
  				// 设置输出
  				nodeData.setOutputs(KnowledgeRetrievalNodeData.getDefaultOutputSchemas(dialectType)))
  				.andThen(super.postProcessConsumer(dialectType))
  				.andThen((nodeData, idToVarName) -> {
  					// 获取最终的输入输出Key名
  					nodeData.setOutputKey(nodeData.getOutputs().get(0).getName());
  					nodeData.setInputKey(nodeData.getInputs().get(0).getNameInCode());
  				});
  			default -> super.postProcessConsumer(dialectType);
  		};
  	}
  
  }
  