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.llm.qwen;
  
  import com.agentsflex.core.document.Document;
  import com.agentsflex.core.llm.BaseLlm;
  import com.agentsflex.core.llm.ChatOptions;
  import com.agentsflex.core.llm.StreamResponseListener;
  import com.agentsflex.core.llm.client.BaseLlmClientListener;
  import com.agentsflex.core.llm.client.HttpClient;
  import com.agentsflex.core.llm.client.LlmClient;
  import com.agentsflex.core.llm.client.LlmClientListener;
  import com.agentsflex.core.llm.client.impl.SseClient;
  import com.agentsflex.core.llm.embedding.EmbeddingOptions;
  import com.agentsflex.core.llm.response.AiMessageResponse;
  import com.agentsflex.core.parser.AiMessageParser;
  import com.agentsflex.core.prompt.Prompt;
  import com.agentsflex.core.store.VectorData;
  import com.agentsflex.core.util.LogUtil;
  import com.agentsflex.core.util.StringUtil;
  import com.alibaba.fastjson.JSON;
  import com.alibaba.fastjson.JSONObject;
  import com.alibaba.fastjson.JSONPath;
  
  import java.util.HashMap;
  import java.util.Map;
  
  public class QwenLlm extends BaseLlm<QwenLlmConfig> {
  
      private final HttpClient httpClient = new HttpClient();
  
      public AiMessageParser aiMessageParser = QwenLlmUtil.getAiMessageParser(false);
      public AiMessageParser streamMessageParser = QwenLlmUtil.getAiMessageParser(true);
  
  
      public QwenLlm(QwenLlmConfig config) {
          super(config);
      }
  
  
      @Override
      public AiMessageResponse chat(Prompt prompt, ChatOptions options) {
          Map<String, String> headers = new HashMap<>();
          headers.put("Content-Type", "application/json");
          headers.put("Authorization", "Bearer " + getConfig().getApiKey());
  
          //非流式返回，需要设置为 false
          options.setEnableThinking(false);
  
          String payload = QwenLlmUtil.promptToPayload(prompt, config, options, false);
          String endpoint = config.getEndpoint();
          String response = httpClient.post(endpoint + "/compatible-mode/v1/chat/completions", headers, payload);
  
          if (config.isDebug()) {
              LogUtil.println(">>>>receive payload:" + response);
          }
  
          if (StringUtil.noText(response)) {
              return AiMessageResponse.error(prompt, response, "no content for response.");
          }
  
          JSONObject jsonObject = JSON.parseObject(response);
          JSONObject error = jsonObject.getJSONObject("error");
  
          AiMessageResponse messageResponse = new AiMessageResponse(prompt, response, aiMessageParser.parse(jsonObject));
  
          if (error != null && !error.isEmpty()) {
              messageResponse.setError(true);
              messageResponse.setErrorMessage(error.getString("message"));
              messageResponse.setErrorType(error.getString("type"));
              messageResponse.setErrorCode(error.getString("code"));
          }
  
          return messageResponse;
      }
  
  
      @Override
      public void chatStream(Prompt prompt, StreamResponseListener listener, ChatOptions options) {
          LlmClient llmClient = new SseClient();
          Map<String, String> headers = new HashMap<>();
          headers.put("Content-Type", "application/json");
          headers.put("Authorization", "Bearer " + getConfig().getApiKey());
          headers.put("X-DashScope-SSE", "enable"); //stream
  
          String payload = QwenLlmUtil.promptToPayload(prompt, config, options, true);
          LlmClientListener clientListener = new BaseLlmClientListener(this, llmClient, listener, prompt, streamMessageParser);
  
          String endpoint = config.getEndpoint();
          llmClient.start(endpoint + "/compatible-mode/v1/chat/completions", headers, payload, clientListener, config);
      }
  
  
      @Override
      public VectorData embed(Document document, EmbeddingOptions options) {
          String payload = QwenLlmUtil.promptToEnabledPayload(document, options, config);
          Map<String, String> headers = new HashMap<>();
          headers.put("Content-Type", "application/json");
          headers.put("Authorization", "Bearer " + getConfig().getApiKey());
  
          String url = config.getEndpoint() + "/compatible-mode/v1/embeddings";
          String response = httpClient.post(url, headers, payload);
  
          if (config.isDebug()) {
              LogUtil.println(">>>>receive payload:" + response);
          }
  
          if (StringUtil.noText(response)) {
              return null;
          }
  
          VectorData vectorData = new VectorData();
          double[] embedding = JSONPath.read(response, "$.data[0].embedding", double[].class);
          vectorData.setVector(embedding);
  
          return vectorData;
      }
  
  }
  