Refactor text wrapper default handling to expose fewer internals.

I don't want to have to set optionality inferred for all tool parameters and I want to try to encapsulate this logic more in the parameter definition.

lib/galaxy/tools/parameters/basic.py

@@ -188,7 +188,6 @@ def __init__(self, tool, input_source, context=None):
         self.hidden = input_source.get_bool("hidden", False)
         self.refresh_on_change = input_source.get_bool("refresh_on_change", False)
         self.optional = input_source.parse_optional()
-        self.optionality_inferred = False
         self.is_dynamic = False
         self.label = input_source.parse_label()
         self.help = input_source.parse_help()
@@ -351,6 +350,7 @@ def parse_name(input_source):
 class SimpleTextToolParameter(ToolParameter):
     def __init__(self, tool, input_source):
         input_source = ensure_input_source(input_source)
+        self.optionality_inferred = False
         super().__init__(tool, input_source)
         optional = input_source.get("optional", None)
         if optional is not None:
@@ -404,6 +404,7 @@ class TextToolParameter(SimpleTextToolParameter):
     def __init__(self, tool, input_source):
         input_source = ensure_input_source(input_source)
         super().__init__(tool, input_source)
+        self.profile = tool.profile
         self.datalist = []
         for title, value, _ in input_source.parse_static_options():
             self.datalist.append({"label": title, "value": value})
@@ -419,6 +420,16 @@ def validate(self, value, trans=None):
         ):
             return super().validate(value, trans)
 
+    @property
+    def wrapper_default() -> Optional[str]:
+        """Handle change in default handling pre and post 23.0 profiles."""
+        profile = self.profile
+        legacy_behavior = (profile is None or Version(str(profile)) < Version("23.0"))
+        default_value = None
+        if self.optional and self.optionality_inferred and legacy_behavior:
+            default_value = ""
+        return default_value
+
     def to_dict(self, trans, other_values=None):
         d = super().to_dict(trans)
         other_values = other_values or {}

lib/galaxy/tools/wrappers.py

@@ -19,7 +19,6 @@
     Union,
 )
 
-from packaging.version import Version
 from typing_extensions import TypeAlias
 
 from galaxy.model import (
@@ -33,7 +32,10 @@
 from galaxy.model.metadata import FileParameter
 from galaxy.model.none_like import NoneDataset
 from galaxy.security.object_wrapper import wrap_with_safe_string
-from galaxy.tools.parameters.basic import BooleanToolParameter
+from galaxy.tools.parameters.basic import (
+    BooleanToolParameter,
+    TextToolParameter,
+)
 from galaxy.tools.parameters.wrapped_json import (
     data_collection_input_to_staging_path_and_source_path,
     data_input_to_staging_path_and_source_path,
@@ -126,15 +128,9 @@ def __init__(
         profile: Optional[float] = None,
     ) -> None:
         self.input = input
-        if (
-            value is None
-            and input.type == "text"
-            and input.optional
-            and input.optionality_inferred
-            and (profile is None or Version(str(profile)) < Version("23.0"))
-        ):
+        if value is None and input.type == "text":
             # Tools with old profile versions may treat an optional text parameter as `""`
-            value = ""
+            value = cast(TextToolParameter, input).wrapper_default()
         self.value = value
         self._other_values: Dict[str, str] = other_values or {}