bug fixing chunker

app/core/chunker.py

@@ -39,21 +39,14 @@ logger = logging.getLogger(__name__)
 
 def extract_frontmatter_from_text(md_text: str) -> Tuple[Dict[str, Any], str]:
     fm_match = re.match(r'^\s*---\s*\n(.*?)\n---', md_text, re.DOTALL)
-    
+    if not fm_match: return {}, md_text
-    if not fm_match: 
-        return {}, md_text
-    
     frontmatter_yaml = fm_match.group(1)
-    
     try:
         frontmatter = yaml.safe_load(frontmatter_yaml)
-        if not isinstance(frontmatter, dict): 
+        if not isinstance(frontmatter, dict): frontmatter = {}
-            frontmatter = {}
     except yaml.YAMLError:
         frontmatter = {}
-        
     text_without_fm = re.sub(r'^\s*---\s*\n(.*?)\n---', '', md_text, flags=re.DOTALL)
-    
     return frontmatter, text_without_fm.strip()
 
 
@@ -65,43 +58,22 @@ BASE_DIR = Path(__file__).resolve().parent.parent.parent
 CONFIG_PATH = BASE_DIR / "config" / "types.yaml"
 DEFAULT_PROFILE = {"strategy": "sliding_window", "target": 400, "max": 600, "overlap": (50, 80)}
 _CONFIG_CACHE = None
-
 def _load_yaml_config() -> Dict[str, Any]:
     global _CONFIG_CACHE
-    # FEHLER BEHOBEN: Zeilenumbruch eingefügt
+    if _CONFIG_CACHE is not None: return _CONFIG_CACHE
-    if _CONFIG_CACHE is not None: 
+    if not CONFIG_PATH.exists(): return {}
-        return _CONFIG_CACHE
-    
-    if not CONFIG_PATH.exists(): 
-        return {}
-    
     try:
-        with open(CONFIG_PATH, "r", encoding="utf-8") as f: 
+        with open(CONFIG_PATH, "r", encoding="utf-8") as f: data = yaml.safe_load(f); _CONFIG_CACHE = data; return data
-            data = yaml.safe_load(f)
+    except Exception as e: return {}
-            _CONFIG_CACHE = data
-            return data
-    except Exception as e: 
-        return {}
-
 def get_chunk_config(note_type: str) -> Dict[str, Any]:
-    full_config = _load_yaml_config()
+    full_config = _load_yaml_config(); profiles = full_config.get("chunking_profiles", {})
-    profiles = full_config.get("chunking_profiles", {})
+    type_def = full_config.get("types", {}).get(note_type.lower(), {}); profile_name = type_def.get("chunking_profile")
-    type_def = full_config.get("types", {}).get(note_type.lower(), {})
+    if not profile_name: profile_name = full_config.get("defaults", {}).get("chunking_profile", "sliding_standard")
-    profile_name = type_def.get("chunking_profile")
-    
-    if not profile_name: 
-        profile_name = full_config.get("defaults", {}).get("chunking_profile", "sliding_standard")
-    
     config = profiles.get(profile_name, DEFAULT_PROFILE).copy()
-    
+    if "overlap" in config and isinstance(config["overlap"], list): config["overlap"] = tuple(config["overlap"])
-    if "overlap" in config and isinstance(config["overlap"], list): 
-        config["overlap"] = tuple(config["overlap"])
-        
     return config
-
 def get_sizes(note_type: str):
-    cfg = get_chunk_config(note_type)
+    cfg = get_chunk_config(note_type); return {"target": (cfg["target"], cfg["target"]), "max": cfg["max"], "overlap": cfg["overlap"]}
-    return {"target": (cfg["target"], cfg["target"]), "max": cfg["max"], "overlap": cfg["overlap"]}
 
 
 # ==========================================
@@ -112,15 +84,15 @@ _SENT_SPLIT = re.compile(r'(?<=[.!?])\s+(?=[A-ZÄÖÜ0-9„(])')
 _WS = re.compile(r'\s+')
 
 def estimate_tokens(text: str) -> int:
-    t = len(text.strip())
+    t = len(text.strip()); return max(1, math.ceil(t / 4))
-    return max(1, math.ceil(t / 4))
 
+# FIX: Kurzschreibweise aufgelöst, um Linter-Fehler zu vermeiden
 def split_sentences(text: str) -> list[str]:
     text = _WS.sub(' ', text.strip())
-    # FEHLER BEHOBEN: Zeilenumbruch eingefügt
+    
     if not text: 
         return []
-    
+        
     parts = _SENT_SPLIT.split(text)
     return [p.strip() for p in parts if p.strip()]
 
@@ -135,18 +107,11 @@ class Chunk:
 def parse_blocks(md_text: str) -> Tuple[List[RawBlock], str]:
     md = MarkdownIt("commonmark").enable("table")
     tokens: List[Token] = md.parse(md_text)
-    blocks: List[RawBlock] = []
+    blocks: List[RawBlock] = []; h1_title = "Dokument"; h2, h3 = None, None; section_path = "/"
-    h1_title = "Dokument"; h2, h3 = None, None; section_path = "/"
     fm, text_without_fm = extract_frontmatter_from_text(md_text)
-    
+    if text_without_fm.strip(): blocks.append(RawBlock(kind="paragraph", text=text_without_fm.strip(), level=None, section_path=section_path, section_title=h2))
-    if text_without_fm.strip(): 
-        blocks.append(RawBlock(kind="paragraph", text=text_without_fm.strip(), level=None, section_path=section_path, section_title=h2))
-    
     h1_match = re.search(r'^#\s+(.*)', text_without_fm, re.MULTILINE)
-    
+    if h1_match: h1_title = h1_match.group(1).strip()
-    if h1_match: 
-        h1_title = h1_match.group(1).strip()
-        
     return blocks, h1_title
 
 # ==========================================
@@ -155,10 +120,7 @@ def parse_blocks(md_text: str) -> Tuple[List[RawBlock], str]:
 
 def _strategy_sliding_window(blocks: List[RawBlock], config: Dict[str, Any], note_id: str, doc_title: str = "", context_prefix: str = "") -> List[Chunk]:
     """Klassisches Sliding Window."""
-    target = config.get("target", 400)
+    target = config.get("target", 400); max_tokens = config.get("max", 600); overlap_val = config.get("overlap", (50, 80)); overlap = sum(overlap_val) // 2 if isinstance(overlap_val, tuple) else overlap_val
-    max_tokens = config.get("max", 600)
-    overlap_val = config.get("overlap", (50, 80))
-    overlap = sum(overlap_val) // 2 if isinstance(overlap_val, tuple) else overlap_val
     chunks: List[Chunk] = []; buf: List[RawBlock] = []
     
     def flush_buffer():
@@ -212,15 +174,12 @@ def _strategy_by_heading(blocks: List[RawBlock], config: Dict[str, Any], note_id
     for b in blocks:
         if b.kind == "heading": continue
         if b.section_path not in sections:
-            sections[b.section_path] = []
+            sections[b.section_path] = []; ordered.append(b.section_path)
-            ordered.append(b.section_path)
         sections[b.section_path].append(b)
         
     for path in ordered:
         s_blocks = sections[path]
-        # FEHLER BEHOBEN: Zeilenumbruch eingefügt
+        if not s_blocks: continue
-        if not s_blocks: 
-            continue
             
         breadcrumbs = path.strip("/").replace("/", " > ")
         context_header = f"# {doc_title}\n## {breadcrumbs}"
@@ -246,7 +205,6 @@ def _strategy_by_heading(blocks: List[RawBlock], config: Dict[str, Any], note_id
 _semantic_analyzer_instance = None
 def _get_semantic_analyzer_instance() -> SemanticAnalyzer:
     global _semantic_analyzer_instance
-    # FEHLER BEHOBEN: Zeilenumbruch eingefügt
     if _semantic_analyzer_instance is None: 
         _semantic_analyzer_instance = SemanticAnalyzer()
     return _semantic_analyzer_instance
@@ -257,7 +215,6 @@ def _extract_all_edges_from_md(md_text: str, note_id: str, note_type: str) -> Li
     Ruft die Edge-Derivation auf Note-Ebene auf und gibt die Kanten im Format "kind:Target" zurück.
     """
     
-    # Korrigierte Argumentreihenfolge
     raw_edges: List[Dict] = build_edges_for_note(
         md_text, 
         note_id, 
@@ -303,9 +260,9 @@ async def _strategy_smart_edge_allocation(md_text: str, config: Dict, note_id: s
         for chunk in chunks:
             # Starte den LLM-Filter-Call für jeden Chunk parallel
             task = analyzer.analyze_and_chunk(
-                chunk_text=chunk.text, 
+                text=chunk.text, 
+                source_type=note_type,
                 all_note_edges=all_note_edges_list, 
-                note_type=note_type,
             )
             llm_tasks.append(task)
             
@@ -353,22 +310,24 @@ async def _strategy_smart_edge_allocation(md_text: str, config: Dict, note_id: s
 # 6. MAIN ENTRY POINT (ASYNC)
 # ==========================================
 
-async def assemble_chunks(note_id: str, md_text: str, note_type: str) -> List[Chunk]:
+async def assemble_chunks(note_id: str, md_text: str, note_type: str, config: Optional[Dict] = None) -> List[Chunk]:
     """
     Hauptfunktion. Analysiert Config und wählt Strategie (MUSS ASYNC SEIN).
+    Akzeptiert optional 'config' zur Überschreibung der Laufzeitkonfiguration (für Tests).
     """
     
-    # 1. Frontmatter prüfen (Double-LLM-Prevention)
+    # 1. Konfiguration laden (überschreiben, falls im Test injiziert)
+    if config is None:
+        config = get_chunk_config(note_type)
+
+    # 2. Frontmatter prüfen (Double-LLM-Prevention)
     fm, body = extract_frontmatter_from_text(md_text) 
     note_status = fm.get("status", "").lower()
     
-    config = get_chunk_config(note_type)
     strategy = config.get("strategy", "sliding_window")
-
-    # Neue Konfigurationsprüfung
     enable_smart_edge = config.get("enable_smart_edge_allocation", False)
     
-    # 2. Strategie-Auswahl
+    # 3. Strategie-Auswahl
     
     # A. Override bei Draft-Status
     if enable_smart_edge and note_status in ["draft", "initial_gen"]: