refactor: 标准导图仅使用报告生成

src/main/java/com/guo/learningprogresstracker/entity/ReviewStandardMindMapEntity.java

@@ -10,7 +10,7 @@ import java.io.Serializable;
 import java.time.LocalDateTime;
 
 /**
- * 任务标准思维导图：由内置规则或 AI 从学习报告/残片生成，用户可修改
+ * 任务标准思维导图：由内置规则或 AI 从学习报告生成，用户可修改
  */
 @TableName(value = "review_standard_mind_maps")
 @Data

src/main/java/com/guo/learningprogresstracker/service/MindMapAiClient.java

@@ -1,6 +1,5 @@
 package com.guo.learningprogresstracker.service;
 
-import com.guo.learningprogresstracker.entity.StudyReportFragmentsEntity;
 import com.guo.learningprogresstracker.entity.StudyReportsEntity;
 import com.guo.learningprogresstracker.entity.TaskApplicationEntity;
 import com.guo.learningprogresstracker.entity.TaskEntity;
@@ -26,14 +25,12 @@ public interface MindMapAiClient {
      *
      * @param task       学习任务
      * @param reports      该任务的全部学习报告
-     * @param fragments  该任务的全部学习残片
      * @param applications 该任务的应用场景（可选）
      * @param clientHint 前端已有的大纲文本（可选，用于 AI 续写而非全量生成）
      * @return 标准思维导图的根节点；若无可生成数据则返回 {@link Optional#empty()}
      */
     Optional<MindMapNode> generate(TaskEntity task,
                                    List<StudyReportsEntity> reports,
-                                   List<StudyReportFragmentsEntity> fragments,
                                    List<TaskApplicationEntity> applications,
                                    String clientHint);
 

src/main/java/com/guo/learningprogresstracker/service/impl/AiServiceClient.java

@@ -82,10 +82,10 @@ public class AiServiceClient {
     }
 
     /**
-     * 调用 lpt-ai 从学习数据生成思维导图大纲。
+     * 调用 lpt-ai 从学习报告生成思维导图大纲。
      */
     public Optional<String> generateMindMap(String taskName, String taskDescription,
-                                             List<String> reports, List<String> fragments) {
+                                             List<String> reports) {
         if (!isConfigured()) {
             return Optional.empty();
         }
@@ -93,8 +93,7 @@ public class AiServiceClient {
             Map<String, Object> params = Map.of(
                     "taskName", taskName,
                     "taskDescription", taskDescription != null ? taskDescription : "",
-                    "reports", reports != null ? reports : List.of(),
+                    "reports", reports != null ? reports : List.of()
-                    "fragments", fragments != null ? fragments : List.of()
             );
 
             Optional<JsonNode> result = submitAndWait("generate-mind-map", params);

src/main/java/com/guo/learningprogresstracker/service/impl/BuiltinMindMapGenerator.java

@@ -1,6 +1,5 @@
 package com.guo.learningprogresstracker.service.impl;
 
-import com.guo.learningprogresstracker.entity.StudyReportFragmentsEntity;
 import com.guo.learningprogresstracker.entity.StudyReportsEntity;
 import com.guo.learningprogresstracker.entity.TaskApplicationEntity;
 import com.guo.learningprogresstracker.entity.TaskEntity;
@@ -16,12 +15,12 @@ import java.util.*;
 import java.util.stream.Collectors;
 
 /**
- * 内置规则引擎：从学习报告和残片提取关键词并组织为树形思维导图。
+ * 内置规则引擎：从学习报告提取内容并组织为树形思维导图。
  * <p>规则策略：</p>
  * <ol>
  *   <li>根节点 = 任务名称</li>
  *   <li>一级分支 = 按会话（日期+报告摘要）分组</li>
- *   <li>二级分支 = 该会话下的残片标题</li>
+ *   <li>二级分支 = 该会话下的报告</li>
  *   <li>附加分支"应用场景" = 任务应用场景（如有）</li>
  *   <li>去重：标准化后标题对比，合并内容相似的节点</li>
  *   <li>引用追溯：每个节点携带 sourceType / sourceId</li>
@@ -46,10 +45,9 @@ public class BuiltinMindMapGenerator implements MindMapAiClient {
     @Override
     public Optional<MindMapNode> generate(TaskEntity task,
                                           List<StudyReportsEntity> reports,
-                                          List<StudyReportFragmentsEntity> fragments,
                                           List<TaskApplicationEntity> applications,
                                           String clientHint) {
-        if (reports.isEmpty() && fragments.isEmpty()) {
+        if (reports == null || reports.isEmpty()) {
             return Optional.empty();
         }
 
@@ -58,34 +56,21 @@ public class BuiltinMindMapGenerator implements MindMapAiClient {
 
         // 按 session 分组
         Map<String, List<StudyReportsEntity>> reportsBySession = reports.stream()
+                .filter(r -> r.getSessionNum() != null)
                 .collect(Collectors.groupingBy(StudyReportsEntity::getSessionNum));
-        Map<String, List<StudyReportFragmentsEntity>> fragmentsBySession = fragments.stream()
-                .collect(Collectors.groupingBy(StudyReportFragmentsEntity::getSessionNum));
 
-        // 合并所有 session
+        for (Map.Entry<String, List<StudyReportsEntity>> entry : reportsBySession.entrySet()) {
-        Set<String> allSessions = new LinkedHashSet<>();
+            List<StudyReportsEntity> sessReports = entry.getValue();
-        allSessions.addAll(reportsBySession.keySet());
-        allSessions.addAll(fragmentsBySession.keySet());
 
-        for (String sessionNum : allSessions) {
+            // 会话分支标题：取第一条报告的前 60 字作为摘要
-            List<StudyReportsEntity> sessReports = reportsBySession.getOrDefault(sessionNum, List.of());
+            StudyReportsEntity firstReport = sessReports.get(0);
-            List<StudyReportFragmentsEntity> sessFragments = fragmentsBySession.getOrDefault(sessionNum, List.of());
+            String sessionTitle = truncate(firstReport.getContent(), MAX_TITLE_LENGTH);
-
+            if (firstReport.getCreatedTime() != null) {
-            // 会话分支标题：取第一条报告的前 60 字作为摘要，或直接写"学习记录"
+                sessionTitle = formatDate(firstReport.getCreatedTime()) + " " + sessionTitle;
-            String sessionTitle;
-            if (!sessReports.isEmpty()) {
-                String firstReport = sessReports.get(0).getContent();
-                sessionTitle = truncate(firstReport, MAX_TITLE_LENGTH);
-                if (sessReports.get(0).getCreatedTime() != null) {
-                    sessionTitle = formatDate(sessReports.get(0).getCreatedTime()) + " " + sessionTitle;
-                }
-            } else {
-                sessionTitle = "学习记录 " + (sessFragments.isEmpty() ? "" : formatDate(sessFragments.get(0).getCreatedTime()));
             }
 
             MindMapNode sessionNode = new MindMapNode(sessionTitle);
 
-            // 报告作为子节点
             for (StudyReportsEntity report : sessReports) {
                 String content = report.getContent();
                 if (content == null || content.isBlank()) continue;
@@ -96,17 +81,6 @@ public class BuiltinMindMapGenerator implements MindMapAiClient {
                 sessionNode.getChildren().add(reportNode);
             }
 
-            // 残片作为子节点
-            for (StudyReportFragmentsEntity frag : sessFragments) {
-                String content = frag.getContent();
-                if (content == null || content.isBlank()) continue;
-                MindMapNode fragNode = new MindMapNode(truncate(content, MAX_TITLE_LENGTH));
-                fragNode.setNotes(content);
-                fragNode.setSourceType("FRAGMENT");
-                fragNode.setSourceId(frag.getId());
-                sessionNode.getChildren().add(fragNode);
-            }
-
             root.getChildren().add(sessionNode);
         }
 

src/main/java/com/guo/learningprogresstracker/service/impl/RemoteAiMindMapClient.java

@@ -1,6 +1,5 @@
 package com.guo.learningprogresstracker.service.impl;
 
-import com.guo.learningprogresstracker.entity.StudyReportFragmentsEntity;
 import com.guo.learningprogresstracker.entity.StudyReportsEntity;
 import com.guo.learningprogresstracker.entity.TaskApplicationEntity;
 import com.guo.learningprogresstracker.entity.TaskEntity;
@@ -40,32 +39,26 @@ public class RemoteAiMindMapClient implements MindMapAiClient {
     @Override
     public Optional<MindMapNode> generate(TaskEntity task,
                                           List<StudyReportsEntity> reports,
-                                          List<StudyReportFragmentsEntity> fragments,
                                           List<TaskApplicationEntity> applications,
                                           String clientHint) {
         if (!isAvailable()) {
             return Optional.empty();
         }
 
-        // 提取报告和残片的内容文本
+        // 提取学习报告的内容文本
         List<String> reportTexts = reports.stream()
                 .map(StudyReportsEntity::getContent)
                 .filter(c -> c != null && !c.isBlank())
                 .collect(Collectors.toList());
-        List<String> fragmentTexts = fragments.stream()
-                .map(StudyReportFragmentsEntity::getContent)
-                .filter(c -> c != null && !c.isBlank())
-                .collect(Collectors.toList());
 
-        if (reportTexts.isEmpty() && fragmentTexts.isEmpty()) {
+        if (reportTexts.isEmpty()) {
             return Optional.empty();
         }
 
         Optional<String> optOutline = aiServiceClient.generateMindMap(
                 task.getTaskName(),
                 task.getTaskDescription(),
-                reportTexts,
+                reportTexts
-                fragmentTexts
         );
 
         if (optOutline.isEmpty() || optOutline.get().isBlank()) {

src/main/java/com/guo/learningprogresstracker/service/impl/StandardMindMapServiceImpl.java

@@ -36,7 +36,6 @@ public class StandardMindMapServiceImpl implements StandardMindMapService {
     private final ReviewRecallRecordMapper recallRecordMapper;
     private final TasksMapper tasksMapper;
     private final StudyReportsMapper studyReportsMapper;
-    private final StudyReportFragmentsMapper studyReportFragmentsMapper;
     private final TaskApplicationMapper taskApplicationMapper;
     private final StudySessionsMapper studySessionsMapper;
 
@@ -86,7 +85,8 @@ public class StandardMindMapServiceImpl implements StandardMindMapService {
         ensureTaskExists(taskNum);
         ReviewStandardMindMapEntity existing = queryByTaskNum(taskNum);
         if (existing == null) {
-            throw new NotFindEntitiesException("标准思维导图尚不存在，无法增量更新");
+            log.warn("任务[{}]标准思维导图尚不存在，无法增量更新", taskNum);
+            throw new NotFindEntitiesException("还没有生成过标准思维导图，请先完整生成一次哦");
         }
         // 防并发生成
         AtomicBoolean lock = generatingTasks.computeIfAbsent(taskNum, k -> new AtomicBoolean(false));
@@ -201,7 +201,8 @@ public class StandardMindMapServiceImpl implements StandardMindMapService {
         try {
             resultJson = objectMapper.writeValueAsString(result);
         } catch (Exception e) {
-            throw new OperationFailedException("对比结果序列化失败");
+            log.error("任务[{}]对比结果序列化失败", taskNum, e);
+            throw new OperationFailedException("对比结果解析失败了，请稍后再试");
         }
 
         // 5. 保存回忆记录
@@ -405,7 +406,10 @@ public class StandardMindMapServiceImpl implements StandardMindMapService {
     @Override
     public ReviewRecallRecordEntity getRecallRecord(Integer recordId) throws NotFindEntitiesException {
         return Optional.ofNullable(recallRecordMapper.selectById(recordId))
-                .orElseThrow(() -> new NotFindEntitiesException("回忆记录[" + recordId + "]不存在"));
+                .orElseThrow(() -> {
+                    log.warn("回忆记录[{}]不存在", recordId);
+                    return new NotFindEntitiesException("这条回忆记录不存在或已被删除");
+                });
     }
 
     // ============ 内部方法 ============
@@ -415,7 +419,8 @@ public class StandardMindMapServiceImpl implements StandardMindMapService {
                 Wrappers.<TaskEntity>lambdaQuery().eq(TaskEntity::getTaskNum, taskNum).last("LIMIT 1"));
 
         if (task == null) {
-            throw new OperationFailedException("任务[" + taskNum + "]不存在");
+            log.warn("任务[{}]不存在，无法生成思维导图", taskNum);
+            throw new OperationFailedException("这个任务不存在或已被删除");
         }
 
         // 收集学习数据
@@ -428,14 +433,12 @@ public class StandardMindMapServiceImpl implements StandardMindMapService {
         List<StudyReportsEntity> reports = sessionNums.isEmpty() ? List.of()
                 : studyReportsMapper.selectList(Wrappers.<StudyReportsEntity>lambdaQuery()
                 .in(StudyReportsEntity::getSessionNum, sessionNums));
-        List<StudyReportFragmentsEntity> fragments = sessionNums.isEmpty() ? List.of()
-                : studyReportFragmentsMapper.selectList(Wrappers.<StudyReportFragmentsEntity>lambdaQuery()
-                .in(StudyReportFragmentsEntity::getSessionNum, sessionNums));
         List<TaskApplicationEntity> applications = taskApplicationMapper.selectList(
                 Wrappers.<TaskApplicationEntity>lambdaQuery().eq(TaskApplicationEntity::getTaskNum, taskNum));
 
-        if (reports.isEmpty() && fragments.isEmpty()) {
+        if (reports.isEmpty()) {
-            throw new OperationFailedException("任务[" + taskNum + "]没有学习报告或残片，无法生成思维导图");
+            log.warn("任务[{}]没有学习报告，无法生成思维导图", taskNum);
+            throw new OperationFailedException("这个任务还没开始学习哦，学习后产生学习报告后再来吧");
         }
 
         // 优先选 AI 客户端（非 BUILTIN），其次内置生成器
@@ -445,10 +448,11 @@ public class StandardMindMapServiceImpl implements StandardMindMapService {
                 .orElse(null);
 
         if (client == null) {
-            throw new OperationFailedException("没有可用的思维导图生成器");
+            log.warn("任务[{}]没有可用的思维导图生成器", taskNum);
+            throw new OperationFailedException("思维导图暂时生成不了，请稍后再试");
         }
 
-        Optional<MindMapNode> optRoot = client.generate(task, reports, fragments, applications, null);
+        Optional<MindMapNode> optRoot = client.generate(task, reports, applications, null);
         // AI 生成失败时尝试降级到内置生成器
         if (optRoot.isEmpty() && !"BUILTIN".equals(client.generatorName())) {
             log.info("AI 思维导图生成失败，降级到内置生成器");
@@ -456,11 +460,12 @@ public class StandardMindMapServiceImpl implements StandardMindMapService {
                     .filter(c -> "BUILTIN".equals(c.generatorName()) && c.isAvailable())
                     .findFirst().orElse(null);
             if (fallback != null) {
-                optRoot = fallback.generate(task, reports, fragments, applications, null);
+                optRoot = fallback.generate(task, reports, applications, null);
             }
         }
         if (optRoot.isEmpty()) {
-            throw new OperationFailedException("思维导图生成失败");
+            log.warn("任务[{}]思维导图生成失败，已尝试全部生成器", taskNum);
+            throw new OperationFailedException("思维导图生成失败了，请稍后再试");
         }
 
         MindMapNode root = optRoot.get();
@@ -483,7 +488,7 @@ public class StandardMindMapServiceImpl implements StandardMindMapService {
         entity.setGenerator(client.generatorName());
         entity.setGeneratorVersion("1.0");
         entity.setSourceReportCount(reports.size());
-        entity.setSourceFragmentCount(fragments.size());
+        entity.setSourceFragmentCount(0);
         entity.setGeneratedTime(LocalDateTime.now());
 
         if (create) {
@@ -497,7 +502,8 @@ public class StandardMindMapServiceImpl implements StandardMindMapService {
     private void ensureTaskExists(String taskNum) throws NotFindEntitiesException {
         if (!StringUtils.hasText(taskNum) || !tasksMapper.exists(
                 Wrappers.<TaskEntity>lambdaQuery().eq(TaskEntity::getTaskNum, taskNum))) {
-            throw new NotFindEntitiesException("任务[" + taskNum + "]不存在");
+            log.warn("任务[{}]不存在", taskNum);
+            throw new NotFindEntitiesException("这个任务不存在或已被删除");
         }
     }
 

src/test/java/com/guo/learningprogresstracker/service/impl/StandardMindMapServiceImplTest.java

@@ -36,8 +36,6 @@ class StandardMindMapServiceImplTest {
     @Mock
     private StudyReportsMapper studyReportsMapper;
     @Mock
-    private StudyReportFragmentsMapper studyReportFragmentsMapper;
-    @Mock
     private TaskApplicationMapper taskApplicationMapper;
     @Mock
     private StudySessionsMapper studySessionsMapper;
@@ -189,7 +187,7 @@ class StandardMindMapServiceImplTest {
     private StandardMindMapServiceImpl createService() {
         StandardMindMapServiceImpl s = new StandardMindMapServiceImpl(
                 standardMindMapMapper, recallRecordMapper,
-                tasksMapper, studyReportsMapper, studyReportFragmentsMapper,
+                tasksMapper, studyReportsMapper,
                 taskApplicationMapper, studySessionsMapper,
                 List.of(mockAiClient), objectMapper, aiServiceClient);
         return s;