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
   *
   *     http://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.
   */
  
  /*
   * Licensed to the Apache Software Foundation (ASF) under one or more
   * contributor license agreements.  See the NOTICE file distributed with
   * this work for additional information regarding copyright ownership.
   * The ASF licenses this file to You 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
   *
   *     http://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 io.agentscope.core.tool.function;
  
  import io.agentscope.core.message.TextBlock;
  import io.agentscope.core.tool.ToolResponse;
  import java.time.LocalDateTime;
  import java.time.format.DateTimeFormatter;
  import java.util.List;
  import java.util.function.Function;
  
  public class FunctionTool implements Function<String, ToolResponse> {
  
      @Override
      public ToolResponse apply(String s) {
          try {
              // Get current time and format it as string
              LocalDateTime now = LocalDateTime.now();
              String currentTime = now.format(DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss"));
  
              TextBlock textBlock = TextBlock.builder().text(currentTime).build();
              return new ToolResponse(List.of(textBlock));
          } catch (Exception e) {
              return ToolResponse.error("Tool execution failed: " + e.getMessage());
          }
      }
  }
  