import: support legacy wide-format SETUP.csv (Appl_Title, L_Head1..10, Default_Printer)\n- Add wide-format detection and dedicated import path mapping headers to SystemSetup keys\n- Accept SETUP.csv as valid in validation when wide-format headers are present\n- Batch import path handles wide-format with audit entries\n\nThis resolves 0 mapped / 12 unmapped issue for legacy SETUP.csv

app/api/import_data.py

@@ -919,6 +919,70 @@ def _validate_required_headers(file_type: str, mapped_headers: Dict[str, str]) -
     }
 
 
+def _is_setup_wide_format(headers: List[str]) -> bool:
+    """Detect legacy wide-format SETUP.csv with column headers like L_Head1..L_Head10, Appl_Title, Default_Printer."""
+    if not headers:
+        return False
+    known = {"Appl_Title", "Default_Printer"}
+    known.update({f"L_Head{i}" for i in range(1, 11)})
+    return any(h in known for h in headers)
+
+
+# Mapping from legacy wide-format SETUP.csv headers to canonical SystemSetup.setting_key values
+SETUP_WIDE_HEADER_TO_KEY: Dict[str, str] = {
+    "Appl_Title": "appl_title",
+    "Default_Printer": "default_printer",
+    **{f"L_Head{i}": f"l_head{i}" for i in range(1, 11)},
+}
+
+
+def _import_setup_wide(rows: List[Dict[str, str]], db: Session, replace_existing: bool) -> Tuple[int, List[Dict[str, Any]]]:
+    """Import legacy wide-format SETUP.csv as key/value pairs into SystemSetup.
+
+    Each header maps to a setting key; values are taken from the row(s). If multiple rows exist,
+    subsequent non-empty values will overwrite earlier ones for the same key.
+    Returns (imported_count, errors).
+    """
+    if replace_existing:
+        try:
+            db.query(SystemSetup).delete()
+            db.commit()
+        except Exception:
+            db.rollback()
+            # Proceed with upserts without clearing if deletion fails
+            pass
+
+    imported_count = 0
+    errors: List[Dict[str, Any]] = []
+    for row_index, row in enumerate(rows, start=2):
+        if not isinstance(row, dict):
+            continue
+        for header, key in SETUP_WIDE_HEADER_TO_KEY.items():
+            try:
+                if header not in row:
+                    continue
+                value = row.get(header)
+                if value in (None, ""):
+                    continue
+                existing = db.query(SystemSetup).filter(SystemSetup.setting_key == key).first()
+                if existing:
+                    existing.setting_value = str(value)
+                else:
+                    db.add(SystemSetup(setting_key=key, setting_value=str(value), description=f"Imported from SETUP.{header}"))
+                imported_count += 1
+                if imported_count % 100 == 0:
+                    db.commit()
+            except Exception as e:
+                db.rollback()
+                errors.append({"row": row_index, "field": header, "error": str(e)})
+    try:
+        db.commit()
+    except Exception as e:
+        db.rollback()
+        errors.append({"row": None, "field": "commit", "error": str(e)})
+    return imported_count, errors
+
+
 def _get_required_fields(model_class) -> List[str]:
     """Infer required (non-nullable) fields for a model to avoid DB errors.
 
@@ -1335,6 +1399,25 @@ async def import_csv_data(
             # Keep error minimal for client; internal logging can capture 'e'
             raise HTTPException(status_code=400, detail=f"Could not parse CSV file. The file appears to have serious formatting issues. Error: {str(e)}")
         
+        # Special handling: legacy wide-format SETUP.csv (Appl_Title, L_Head1..10, Default_Printer)
+        if file_type == "SETUP.csv" and _is_setup_wide_format(headers):
+            imported_count, errors = _import_setup_wide(rows_data, db, replace_existing)
+            result = {
+                "file_type": file_type,
+                "imported_count": imported_count,
+                "errors": errors[:10],
+                "total_errors": len(errors),
+                "auto_mapping": {
+                    "mapped_headers": {},
+                    "unmapped_headers": headers,
+                    "wide_format": True,
+                    "flexible_saved_rows": 0,
+                },
+            }
+            if errors:
+                result["warning"] = f"Import completed with {len(errors)} errors"
+            return result
+
         imported_count = 0
         created_count = 0
         updated_count = 0
@@ -1911,9 +1994,11 @@ async def batch_validate_csv_files(
                                 "error": str(e)
                             })
             
+            # Consider valid if we can map at least one column; for SETUP.csv also accept recognized wide-format headers
+            wide_ok = (file_type == "SETUP.csv" and _is_setup_wide_format(csv_headers))
             validation_results.append({
                 "file_type": file_type,
-                "valid": (len(mapped_headers) > 0 and len(errors) == 0 and header_validation.get("ok", True)),
+                "valid": ((len(mapped_headers) > 0 or wide_ok) and len(errors) == 0 and header_validation.get("ok", True)),
                 "headers": {
                     "found": csv_headers,
                     "mapped": mapped_headers,
@@ -1925,6 +2010,7 @@ async def batch_validate_csv_files(
                 "total_errors": len(errors),
                 "auto_mapping": {
                     "suggestions": mapping_info["suggestions"],
+                    "wide_format": wide_ok,
                 },
             })
             
@@ -2196,6 +2282,49 @@ async def batch_import_csv_files(
             unmapped_headers = mapping_info["unmapped_headers"]
             header_validation = _validate_required_headers(file_type, mapped_headers)
 
+            # Special handling: legacy wide-format SETUP.csv (Appl_Title, L_Head1..10, Default_Printer)
+            if file_type == "SETUP.csv" and _is_setup_wide_format(csv_headers):
+                imported_count, errors = _import_setup_wide(rows_list, db, replace_existing)
+                total_imported += imported_count
+                total_errors += len(errors)
+                results.append({
+                    "file_type": file_type,
+                    "status": "success" if not errors else "completed_with_errors",
+                    "imported_count": imported_count,
+                    "errors": len(errors),
+                    "message": f"Imported {imported_count} settings" + (f" with {len(errors)} errors" if errors else ""),
+                    "auto_mapping": {
+                        "mapped_headers": {},
+                        "unmapped_headers": csv_headers,
+                        "wide_format": True,
+                        "flexible_saved_rows": 0,
+                    },
+                })
+                try:
+                    db.add(ImportAuditFile(
+                        audit_id=audit_row.id,
+                        file_type=file_type,
+                        status="success" if not errors else "completed_with_errors",
+                        imported_count=imported_count,
+                        errors=len(errors),
+                        message=f"Imported {imported_count} settings" + (f" with {len(errors)} errors" if errors else ""),
+                        details={
+                            "mapped_headers": [],
+                            "unmapped_count": len(csv_headers),
+                            "flexible_saved_rows": 0,
+                            "wide_format": True,
+                            "header_validation": header_validation,
+                        }
+                    ))
+                    db.commit()
+                    try:
+                        await _broadcast_import_progress(db, audit_row.id)
+                    except Exception:
+                        pass
+                except Exception:
+                    db.rollback()
+                continue
+            
             imported_count = 0
             errors = []
             flexible_saved = 0