fix(annotation): 修复导出服务中的重复数据处理逻辑

- 移除了重复的else分支代码块
- 修复了分段索引键不存在时的数据处理流程
- 简化了列表类型分段的处理逻辑
- 消除了重复的数据添加操作

runtime/datamate-python/app/module/annotation/service/editor.py

@@ -59,6 +59,11 @@ FILE_ID_CAMEL_KEY = "fileId"
 FILE_NAME_CAMEL_KEY = "fileName"
 SEGMENT_INDEX_KEY = "segment_index"
 SEGMENT_INDEX_CAMEL_KEY = "segmentIndex"
+SEGMENTED_KEY = "segmented"
+SEGMENTS_KEY = "segments"
+SEGMENT_RESULT_KEY = "result"
+SEGMENT_CREATED_AT_KEY = "created_at"
+SEGMENT_UPDATED_AT_KEY = "updated_at"
 JSONL_EXTENSION = ".jsonl"
 TEXTUAL_OBJECT_CATEGORIES = {"text", "document"}
 IMAGE_OBJECT_CATEGORIES = {"image"}
@@ -352,22 +357,63 @@ class AnnotationEditorService:
 
         return ET.tostring(root, encoding="unicode")
 
+    @staticmethod
+    def _extract_segment_annotations(payload: Optional[Dict[str, Any]]) -> Dict[str, Dict[str, Any]]:
+        if not payload or not isinstance(payload, dict):
+            return {}
+        segments = payload.get(SEGMENTS_KEY)
+        if isinstance(segments, dict):
+            normalized: Dict[str, Dict[str, Any]] = {}
+            for key, value in segments.items():
+                if isinstance(value, dict):
+                    normalized[str(key)] = value
+            return normalized
+        if isinstance(segments, list):
+            normalized: Dict[str, Dict[str, Any]] = {}
+            for idx, value in enumerate(segments):
+                if not isinstance(value, dict):
+                    continue
+                key = (
+                    value.get(SEGMENT_INDEX_CAMEL_KEY)
+                    or value.get(SEGMENT_INDEX_KEY)
+                    or value.get("segment")
+                    or value.get("idx")
+                )
+                if key is None:
+                    key = idx
+                normalized[str(key)] = value
+            return normalized
+        return {}
+
+    @staticmethod
+    def _is_segmented_annotation(payload: Optional[Dict[str, Any]]) -> bool:
+        if not payload or not isinstance(payload, dict):
+            return False
+        if payload.get(SEGMENTED_KEY):
+            return True
+        segments = payload.get(SEGMENTS_KEY)
+        if isinstance(segments, dict):
+            return len(segments) > 0
+        if isinstance(segments, list):
+            return len(segments) > 0
+        return False
+
     @staticmethod
     def _has_annotation_result(payload: Optional[Dict[str, Any]]) -> bool:
         if not payload or not isinstance(payload, dict):
             return False
-        if payload.get("segmented"):
-            segments = payload.get("segments", {})
-            if not isinstance(segments, dict):
+        if AnnotationEditorService._is_segmented_annotation(payload):
+            segments = AnnotationEditorService._extract_segment_annotations(payload)
+            if not segments:
                 return False
             for segment in segments.values():
                 if not isinstance(segment, dict):
                     continue
-                result = segment.get("result")
+                result = segment.get(SEGMENT_RESULT_KEY)
                 if isinstance(result, list) and len(result) > 0:
                     return True
             return False
-        result = payload.get("result")
+        result = payload.get(SEGMENT_RESULT_KEY)
         return isinstance(result, list) and len(result) > 0
 
     @classmethod
@@ -591,6 +637,13 @@ class AnnotationEditorService:
 
         ls_task_id = self._make_ls_task_id(project.id, file_id)
 
+        segment_annotations: Dict[str, Dict[str, Any]] = {}
+        has_segmented_annotation = False
+        if ann and isinstance(ann.annotation, dict):
+            segment_annotations = self._extract_segment_annotations(ann.annotation)
+            has_segmented_annotation = self._is_segmented_annotation(ann.annotation)
+        segment_annotation_keys = set(segment_annotations.keys())
+
         # 判断是否需要分段（JSONL 多行或主文本超过阈值）
         segmentation_enabled = self._resolve_segmentation_enabled(project)
         if not segmentation_enabled:
@@ -606,10 +659,6 @@ class AnnotationEditorService:
             selected_payload = None
             display_text = "\n".join(record_texts) if record_texts else text_content
 
-        segment_annotations: Dict[str, Any] = {}
-        if ann and ann.annotation and ann.annotation.get("segmented"):
-            segment_annotations = ann.annotation.get("segments", {})
-
         if needs_segmentation:
             splitter = AnnotationTextSplitter(max_chars=self.SEGMENT_THRESHOLD)
             segment_contexts: List[Tuple[Optional[Dict[str, Any]], str, str, int, int]] = []
@@ -626,7 +675,7 @@ class AnnotationEditorService:
                             text=seg["text"],
                             start=seg["start"],
                             end=seg["end"],
-                            hasAnnotation=str(segment_cursor) in segment_annotations,
+                            hasAnnotation=str(segment_cursor) in segment_annotation_keys,
                             lineIndex=record_index,
                             chunkIndex=chunk_index,
                         ))
@@ -638,7 +687,7 @@ class AnnotationEditorService:
                         text=normalized_text,
                         start=0,
                         end=len(normalized_text),
-                        hasAnnotation=str(segment_cursor) in segment_annotations,
+                        hasAnnotation=str(segment_cursor) in segment_annotation_keys,
                         lineIndex=record_index,
                         chunkIndex=0,
                     ))
@@ -679,19 +728,18 @@ class AnnotationEditorService:
         if ann:
             annotation_updated_at = ann.updated_at
 
-            if needs_segmentation and ann.annotation and ann.annotation.get("segmented"):
+            if needs_segmentation and has_segmented_annotation:
                 # 分段模式：获取当前段落的标注
-                segment_annotations = ann.annotation.get("segments", {})
                 seg_ann = segment_annotations.get(str(current_segment_index), {})
                 stored = {
                     "id": self._make_ls_annotation_id(project.id, file_id) + current_segment_index,
                     "task": ls_task_id,
-                    "result": seg_ann.get("result", []),
-                    "created_at": seg_ann.get("created_at", datetime.utcnow().isoformat() + "Z"),
-                    "updated_at": seg_ann.get("updated_at", datetime.utcnow().isoformat() + "Z"),
+                    "result": seg_ann.get(SEGMENT_RESULT_KEY, []),
+                    "created_at": seg_ann.get(SEGMENT_CREATED_AT_KEY, datetime.utcnow().isoformat() + "Z"),
+                    "updated_at": seg_ann.get(SEGMENT_UPDATED_AT_KEY, datetime.utcnow().isoformat() + "Z"),
                 }
                 task["annotations"] = [stored]
-            elif not needs_segmentation and not (ann.annotation or {}).get("segmented"):
+            elif not needs_segmentation and not has_segmented_annotation:
                 # 非分段模式：直接返回存储的 annotation 原始对象
                 stored = dict(ann.annotation or {})
                 stored["task"] = ls_task_id
@@ -968,21 +1016,28 @@ class AnnotationEditorService:
         Returns:
             合并后的 annotation 结构
         """
-        if not existing or not existing.get("segmented"):
+        if not existing or not existing.get(SEGMENTED_KEY):
             # 初始化分段结构
             base: Dict[str, Any] = {
-                "segmented": True,
+                SEGMENTED_KEY: True,
                 "version": 1,
-                "segments": {},
+                SEGMENTS_KEY: {},
             }
         else:
             base = dict(existing)
 
+        if not base.get(SEGMENTED_KEY):
+            base[SEGMENTED_KEY] = True
+        segments = base.get(SEGMENTS_KEY)
+        if not isinstance(segments, dict):
+            segments = {}
+            base[SEGMENTS_KEY] = segments
+
         # 更新指定段落的标注
-        base["segments"][str(segment_index)] = {
-            "result": new_annotation.get("result", []),
-            "created_at": new_annotation.get("created_at", datetime.utcnow().isoformat() + "Z"),
-            "updated_at": datetime.utcnow().isoformat() + "Z",
+        segments[str(segment_index)] = {
+            SEGMENT_RESULT_KEY: new_annotation.get(SEGMENT_RESULT_KEY, []),
+            SEGMENT_CREATED_AT_KEY: new_annotation.get(SEGMENT_CREATED_AT_KEY, datetime.utcnow().isoformat() + "Z"),
+            SEGMENT_UPDATED_AT_KEY: datetime.utcnow().isoformat() + "Z",
         }
 
         return base

runtime/datamate-python/app/module/annotation/service/export.py

@@ -63,6 +63,12 @@ from ..schema.export import (
 
 logger = get_logger(__name__)
 
+SEGMENTED_KEY = "segmented"
+SEGMENTS_KEY = "segments"
+SEGMENT_RESULT_KEY = "result"
+SEGMENT_INDEX_KEY = "segmentIndex"
+SEGMENT_INDEX_FALLBACK_KEY = "segment_index"
+
 
 class AnnotationExportService:
     """标注数据导出服务"""
@@ -239,6 +245,57 @@ class AnnotationExportService:
 
         return items
 
+    @staticmethod
+    def _flatten_annotation_results(annotation: Dict[str, Any]) -> List[Dict[str, Any]]:
+        if not annotation or not isinstance(annotation, dict):
+            return []
+        segments = annotation.get(SEGMENTS_KEY)
+        if annotation.get(SEGMENTED_KEY) or isinstance(segments, (dict, list)):
+            results: List[Dict[str, Any]] = []
+            if isinstance(segments, dict):
+                for key, segment in segments.items():
+                    if not isinstance(segment, dict):
+                        continue
+                    segment_results = segment.get(SEGMENT_RESULT_KEY)
+                    if not isinstance(segment_results, list):
+                        continue
+                    for item in segment_results:
+                        if isinstance(item, dict):
+                            normalized = dict(item)
+                            if SEGMENT_INDEX_KEY not in normalized and SEGMENT_INDEX_FALLBACK_KEY not in normalized:
+                                normalized[SEGMENT_INDEX_KEY] = int(key) if str(key).isdigit() else key
+                            results.append(normalized)
+            elif isinstance(segments, list):
+                for idx, segment in enumerate(segments):
+                    if not isinstance(segment, dict):
+                        continue
+                    segment_results = segment.get(SEGMENT_RESULT_KEY)
+                    if not isinstance(segment_results, list):
+                        continue
+                    segment_index = segment.get(SEGMENT_INDEX_KEY, segment.get(SEGMENT_INDEX_FALLBACK_KEY, idx))
+                    for item in segment_results:
+                        if isinstance(item, dict):
+                            normalized = dict(item)
+                            if SEGMENT_INDEX_KEY not in normalized and SEGMENT_INDEX_FALLBACK_KEY not in normalized:
+                                normalized[SEGMENT_INDEX_KEY] = segment_index
+                            results.append(normalized)
+            return results
+        result = annotation.get(SEGMENT_RESULT_KEY)
+        return result if isinstance(result, list) else []
+
+    @classmethod
+    def _normalize_annotation_for_export(cls, annotation: Dict[str, Any]) -> Dict[str, Any]:
+        if not annotation or not isinstance(annotation, dict):
+            return {}
+        segments = annotation.get(SEGMENTS_KEY)
+        if annotation.get(SEGMENTED_KEY) or isinstance(segments, (dict, list)):
+            normalized = dict(annotation)
+            normalized_result = cls._flatten_annotation_results(annotation)
+            if SEGMENT_RESULT_KEY not in normalized or not isinstance(normalized.get(SEGMENT_RESULT_KEY), list):
+                normalized[SEGMENT_RESULT_KEY] = normalized_result
+            return normalized
+        return annotation
+
     def _export_json(
         self, items: List[AnnotationExportItem], project_name: str
     ) -> Tuple[bytes, str, str]:
@@ -252,7 +309,7 @@ class AnnotationExportService:
                     "file_id": item.file_id,
                     "file_name": item.file_name,
                     "data": item.data,
-                    "annotations": item.annotations,
+                    "annotations": [self._normalize_annotation_for_export(ann) for ann in item.annotations],
                     "created_at": item.created_at.isoformat() if item.created_at else None,
                     "updated_at": item.updated_at.isoformat() if item.updated_at else None,
                 }
@@ -274,7 +331,7 @@ class AnnotationExportService:
                 "file_id": item.file_id,
                 "file_name": item.file_name,
                 "data": item.data,
-                "annotations": item.annotations,
+                "annotations": [self._normalize_annotation_for_export(ann) for ann in item.annotations],
                 "created_at": item.created_at.isoformat() if item.created_at else None,
                 "updated_at": item.updated_at.isoformat() if item.updated_at else None,
             }
@@ -307,7 +364,7 @@ class AnnotationExportService:
             # 提取标签信息（支持多种标注类型）
             labels = []
             for ann in item.annotations:
-                results = ann.get("result", [])
+                results = self._flatten_annotation_results(ann)
                 for r in results:
                     value = r.get("value", {})
                     label_type = r.get("type", "")
@@ -382,7 +439,7 @@ class AnnotationExportService:
 
             # 处理标注
             for ann in item.annotations:
-                results = ann.get("result", [])
+                results = self._flatten_annotation_results(ann)
                 for r in results:
                     # 处理矩形框标注 (rectanglelabels)
                     if r.get("type") == "rectanglelabels":
@@ -434,7 +491,7 @@ class AnnotationExportService:
             lines = []
 
             for ann in item.annotations:
-                results = ann.get("result", [])
+                results = self._flatten_annotation_results(ann)
                 for r in results:
                     # 处理矩形框标注
                     if r.get("type") == "rectanglelabels":