content: /*
   *  Copyright (c) 2023-2025, Agents-Flex (fuhai999@gmail.com).
   *  <p>
   *  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
   *  <p>
   *  http://www.apache.org/licenses/LICENSE-2.0
   *  <p>
   *  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.agentsflex.store.vectorex;
  
  import com.agentsflex.core.document.Document;
  import com.agentsflex.core.store.DocumentStore;
  import com.agentsflex.core.store.SearchWrapper;
  import com.agentsflex.core.store.StoreOptions;
  import com.agentsflex.core.store.StoreResult;
  import com.agentsflex.core.util.VectorUtil;
  import io.github.javpower.vectorexclient.VectorRexClient;
  import io.github.javpower.vectorexclient.builder.QueryBuilder;
  import io.github.javpower.vectorexclient.entity.MetricType;
  import io.github.javpower.vectorexclient.entity.ScalarField;
  import io.github.javpower.vectorexclient.entity.VectoRexEntity;
  import io.github.javpower.vectorexclient.entity.VectorFiled;
  import io.github.javpower.vectorexclient.req.CollectionDataAddReq;
  import io.github.javpower.vectorexclient.req.CollectionDataDelReq;
  import io.github.javpower.vectorexclient.req.VectoRexCollectionReq;
  import io.github.javpower.vectorexclient.res.DbData;
  import io.github.javpower.vectorexclient.res.ServerResponse;
  import io.github.javpower.vectorexclient.res.VectorSearchResult;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  import java.util.*;
  
  public class VectoRexStore extends DocumentStore {
  
      private final VectoRexStoreConfig config;
      private final VectorRexClient client;
      private final String defaultCollectionName;
      private boolean isCreateCollection=false;
      private static final Logger logger = LoggerFactory.getLogger(VectoRexStore.class);
  
      public VectoRexStore(VectoRexStoreConfig config) {
          this.config = config;
          this.defaultCollectionName=config.getDefaultCollectionName();
          this.client = new VectorRexClient(config.getUri(),config.getUsername(),config.getPassword());
      }
  
      @Override
      public StoreResult storeInternal(List<Document> documents, StoreOptions options) {
          List<Map<String, Object>> data=new ArrayList<>();
          for (Document doc : documents) {
              Map<String, Object> dict=new HashMap<>();
              dict.put("id",String.valueOf(doc.getId()));
              dict.put("content", doc.getContent());
              dict.put("vector", VectorUtil.toFloatList(doc.getVector()));
              data.add(dict);
          }
          String collectionName = options.getCollectionNameOrDefault(defaultCollectionName);
          if(config.isAutoCreateCollection()&&!isCreateCollection){
              ServerResponse<List<VectoRexEntity>> collections = client.getCollections();
              if (collections.getData() == null || collections.getData().stream().noneMatch(e -> e.getCollectionName().equals(collectionName))) {
                  createCollection(collectionName);
              }else {
                  isCreateCollection=true;
              }
          }
          for (Map<String, Object> map : data) {
              CollectionDataAddReq req = CollectionDataAddReq.builder().collectionName(collectionName).metadata(map).build();
              client.addCollectionData(req);
          }
          return StoreResult.successWithIds(documents);
      }
  
  
      private Boolean createCollection(String collectionName) {
          List<ScalarField> scalarFields = new ArrayList();
          ScalarField id = ScalarField.builder().name("id").isPrimaryKey(true).build();
          ScalarField content = ScalarField.builder().name("content").isPrimaryKey(false).build();
          scalarFields.add(id);
          scalarFields.add(content);
          List<VectorFiled> vectorFiles = new ArrayList();
          VectorFiled vector = VectorFiled.builder().name("vector").metricType(MetricType.FLOAT_COSINE_DISTANCE).dimensions(this.getEmbeddingModel().dimensions()).build();
          vectorFiles.add(vector);
          ServerResponse<Void> response = client.createCollection(VectoRexCollectionReq.builder().collectionName(collectionName).scalarFields(scalarFields).vectorFileds(vectorFiles).build());
          return response.isSuccess();
      }
  
      @Override
      public StoreResult deleteInternal(Collection<?> ids, StoreOptions options) {
          for (Object id : ids) {
              CollectionDataDelReq req = CollectionDataDelReq.builder().collectionName(options.getCollectionNameOrDefault(defaultCollectionName)).id((String) id).build();
              ServerResponse<Void> response = client.deleteCollectionData(req);
              if (!response.isSuccess()) {
                  return StoreResult.fail();
              }
          }
          return StoreResult.success();
  
      }
  
      @Override
      public List<Document> searchInternal(SearchWrapper searchWrapper, StoreOptions options) {
          ServerResponse<List<VectorSearchResult>> response = client.queryCollectionData(QueryBuilder.lambda(options.getCollectionNameOrDefault(defaultCollectionName)).vector("vector", Collections.singletonList(VectorUtil.toFloatList(searchWrapper.getVector()))).topK(searchWrapper.getMaxResults()));
          if(!response.isSuccess()){
              logger.error("Error searching in VectoRex", response.getMsg());
              return Collections.emptyList();
          }
          List<VectorSearchResult> data = response.getData();
          List<Document> documents = new ArrayList<>();
          for (VectorSearchResult result : data) {
              DbData dd = result.getData();
              Map<String, Object> metadata = dd.getMetadata();
              Document doc=new Document();
              doc.setId(result.getId());
              doc.setContent((String) metadata.get("content"));
              Object vectorObj = metadata.get("vector");
              if (vectorObj instanceof List) {
                  //noinspection unchecked
                  doc.setVector(VectorUtil.convertToVector((List<Float>) vectorObj));
              }
              documents.add(doc);
          }
          return documents;
      }
  
      @Override
      public StoreResult updateInternal(List<Document> documents, StoreOptions options) {
          if (documents == null || documents.isEmpty()) {
              return StoreResult.success();
          }
          List<Map<String, Object>> data=new ArrayList<>();
          for (Document doc : documents) {
              Map<String, Object> dict=new HashMap<>();
              dict.put("id",String.valueOf(doc.getId()));
              dict.put("content", doc.getContent());
              dict.put("vector", VectorUtil.toFloatList(doc.getVector()));
              data.add(dict);
          }
          String collectionName = options.getCollectionNameOrDefault(defaultCollectionName);
          for (Map<String, Object> map : data) {
              CollectionDataAddReq req = CollectionDataAddReq.builder().collectionName(collectionName).metadata(map).build();
              client.updateCollectionData(req);
          }
          return StoreResult.successWithIds(documents);
      }
  
      public VectorRexClient getClient() {
          return client;
      }
  
  }
  