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.Collections;
  import java.util.HashMap;
  import java.util.List;
  import java.util.Map;
  import java.util.Optional;
  import java.util.function.BiConsumer;
  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.DocumentExtractorNodeData;
  import com.alibaba.cloud.ai.studio.admin.generator.service.dsl.AbstractNodeDataConverter;
  import com.alibaba.cloud.ai.studio.admin.generator.service.dsl.DSLDialectType;
  import org.apache.commons.collections4.CollectionUtils;
  
  import org.springframework.stereotype.Component;
  
  /**
   * @author HeYQ
   * @since 2025-05-02 17:03
   */
  @Component
  public class DocumentExtractorNodeDataConverter extends AbstractNodeDataConverter<DocumentExtractorNodeData> {
  
  	@Override
  	public Boolean supportNodeType(NodeType nodeType) {
  		return NodeType.DOC_EXTRACTOR.equals(nodeType);
  	}
  
  	@Override
  	protected List<DialectConverter<DocumentExtractorNodeData>> getDialectConverters() {
  		return Stream.of(DocumentExtractorNodeDialectConverter.values())
  			.map(DocumentExtractorNodeDialectConverter::dialectConverter)
  			.toList();
  	}
  
  	private enum DocumentExtractorNodeDialectConverter {
  
  		DIFY(new DialectConverter<>() {
  			@Override
  			public Boolean supportDialect(DSLDialectType dialectType) {
  				return DSLDialectType.DIFY.equals(dialectType);
  			}
  
  			@Override
  			public DocumentExtractorNodeData parse(Map<String, Object> data) {
  				List<VariableSelector> inputs = Optional.ofNullable((List<String>) data.get("variable_selector"))
  					.filter(CollectionUtils::isNotEmpty)
  					.map(variables -> Collections
  						.singletonList(new VariableSelector(variables.get(0), variables.get(1))))
  					.orElse(Collections.emptyList());
  
  				String outputKey = Optional.ofNullable((String) data.get("output_key"))
  					.orElse(DocumentExtractorNodeData.getDefaultOutputSchema().getName());
  
  				Boolean isArray = (Boolean) data.getOrDefault("is_array_file", false);
  
  				return new DocumentExtractorNodeData(inputs,
  						List.of(DocumentExtractorNodeData.getDefaultOutputSchema()), outputKey, isArray);
  			}
  
  			@Override
  			public Map<String, Object> dump(DocumentExtractorNodeData nodeData) {
  				Map<String, Object> data = new HashMap<>();
  				List<VariableSelector> inputs = nodeData.getInputs();
  				Optional.ofNullable(inputs)
  					.filter(CollectionUtils::isNotEmpty)
  					.map(inputList -> inputList.stream()
  						.findFirst()
  						.map(input -> List.of(input.getNamespace(), input.getName()))
  						.orElse(Collections.emptyList()))
  					.ifPresent(variables -> data.put("variable_selector", variables));
  
  				String outputKey = nodeData.getOutputKey();
  				if (!DocumentExtractorNodeData.getDefaultOutputSchema().getName().equals(outputKey)) {
  					data.put("output_key", outputKey);
  				}
  
  				Boolean isArray = nodeData.isArray();
  				data.put("is_array_file", isArray);
  
  				return data;
  			}
  		}), CUSTOM(AbstractNodeDataConverter.defaultCustomDialectConverter(DocumentExtractorNodeData.class));
  
  		private final DialectConverter<DocumentExtractorNodeData> dialectConverter;
  
  		public DialectConverter<DocumentExtractorNodeData> dialectConverter() {
  			return dialectConverter;
  		}
  
  		DocumentExtractorNodeDialectConverter(DialectConverter<DocumentExtractorNodeData> dialectConverter) {
  			this.dialectConverter = dialectConverter;
  		}
  
  	}
  
  	@Override
  	public String generateVarName(int count) {
  		return "documentExtractorNode" + count;
  	}
  
  	@Override
  	public BiConsumer<DocumentExtractorNodeData, Map<String, String>> postProcessConsumer(DSLDialectType dialectType) {
  		return switch (dialectType) {
  			case DIFY -> this.emptyProcessConsumer().andThen((data, idToVarName) -> {
  				data.setOutputKey(
  						data.getVarName() + "_" + DocumentExtractorNodeData.getDefaultOutputSchema().getName());
  				data.setOutputs(List.of(DocumentExtractorNodeData.getDefaultOutputSchema()));
  			}).andThen(super.postProcessConsumer(dialectType));
  			default -> super.postProcessConsumer(dialectType);
  		};
  	}
  
  }
  