Update upload_ingest.py

upload_ingest.py

@@ -1,9 +1,22 @@
 # upload_ingest.py
-def extract_text_from_files(files):
-    chunks=[]
-    for f in files:
-        if f.endswith(".txt"):
-            with open(f,"r") as fh:
-                chunks.append(fh.read())
-    return {"chunks":chunks}
+from typing import List, Dict, Optional
+from pathlib import Path
 
+def extract_text_from_files(paths: Optional[List[str]]) -> Dict[str, List[str]]:
+    """Return text chunks for RAG. Safe on None/empty."""
+    paths = paths or []
+    chunks: List[str] = []
+    artifacts: List[Dict] = []
+    for p in paths:
+        ext = Path(p).suffix.lower()
+        if ext in {".txt", ".md"}:
+            try:
+                with open(p, "r", encoding="utf-8", errors="ignore") as f:
+                    text = f.read()
+                for i in range(0, len(text), 1500):
+                    chunks.append(text[i:i+1500])
+                artifacts.append({"path": p, "type": ext})
+            except Exception:
+                pass
+        # Add PDF parsing later if needed
+    return {"chunks": chunks, "artifacts": artifacts}