From 368b2969cf3da9d660d3771c17664cf9011af373 Mon Sep 17 00:00:00 2001
From: Denis Artyushin <artyushinden@gmail.com>
Date: Sun, 18 Feb 2024 17:52:41 +0300
Subject: [PATCH] Add json_schema_extra check

---
 bump_pydantic/codemods/field.py | 29 +++++++++++++++++++++++++++++
 tests/unit/test_field.py        | 30 ++++++++++++++++++++++++++++++
 2 files changed, 59 insertions(+)

diff --git a/bump_pydantic/codemods/field.py b/bump_pydantic/codemods/field.py
index 5ba7f47..da694de 100644
--- a/bump_pydantic/codemods/field.py
+++ b/bump_pydantic/codemods/field.py
@@ -4,6 +4,7 @@
 from libcst import matchers as m
 from libcst.codemod import CodemodContext, VisitorBasedCodemodCommand
 from libcst.codemod.visitors import AddImportsVisitor, RemoveImportsVisitor
+from pydantic import Field
 
 RENAMED_KEYWORDS = {
     "min_items": "min_length",
@@ -111,9 +112,26 @@ def leave_field_call(self, original_node: cst.Call, updated_node: cst.Call) -> c
         if not self.has_field_import or not self.inside_field_assign:
             return updated_node
 
+        json_schema_extra_elements: List[cst.DictElement] = []
         new_args: List[cst.Arg] = []
         for arg in updated_node.args:
             if m.matches(arg, m.Arg(keyword=m.Name())):
+                if arg.keyword.value == "json_schema_extra":
+                    json_schema_extra_elements.extend(arg.value.elements)  # type: ignore
+                    continue
+
+                if (
+                    (arg.keyword.value not in RENAMED_KEYWORDS)
+                    and (arg.keyword.value not in Field.__annotations__)
+                    and (arg.keyword != "extra")
+                ):
+                    new_dict_element = cst.DictElement(
+                        key=cst.SimpleString(value=f'"{arg.keyword.value}"'), value=arg.value,
+
+                    )
+                    json_schema_extra_elements.append(new_dict_element)
+                    continue
+
                 keyword = RENAMED_KEYWORDS.get(arg.keyword.value, arg.keyword.value)  # type: ignore
                 value = arg.value
                 if arg.keyword:
@@ -131,6 +149,17 @@ def leave_field_call(self, original_node: cst.Call, updated_node: cst.Call) -> c
             else:
                 new_args.append(arg)
 
+        if len(json_schema_extra_elements) > 0:
+            extra_arg = cst.Arg(
+                value=cst.Dict(elements=json_schema_extra_elements),
+                keyword=cst.Name(value="json_schema_extra"),
+                equal=cst.AssignEqual(
+                    whitespace_before=cst.SimpleWhitespace(""), whitespace_after=cst.SimpleWhitespace("")
+                ),
+            )
+
+            new_args.append(extra_arg)
+
         return updated_node.with_changes(args=new_args)
 
 
diff --git a/tests/unit/test_field.py b/tests/unit/test_field.py
index 448aa01..3fad806 100644
--- a/tests/unit/test_field.py
+++ b/tests/unit/test_field.py
@@ -151,3 +151,33 @@ class Settings(BaseSettings):
             potato: int = Field(..., examples=[1])
         """
         self.assertCodemod(before, after)
+
+    def test_json_schema_extra_exist(self) -> None:
+        before = """
+        from pydantic import BaseModel, Field
+        
+        class Human(BaseModel):
+            name: str = Field(..., some_extra_field="some_extra_field_value", json_schema_extra={"a": "b"})
+        """
+        after = """
+        from pydantic import BaseModel, Field
+        
+        class Human(BaseModel):
+            name: str = Field(..., json_schema_extra={"some_extra_field": "some_extra_field_value", "a": "b"})
+        """
+        self.assertCodemod(before, after)
+
+    def test_json_schema_extra_not_exist(self) -> None:
+        before = """
+        from pydantic import BaseModel, Field
+
+        class Human(BaseModel):
+            name: str = Field(..., min_length=1, some_extra_field="some_extra_field_value")
+        """
+        after = """
+        from pydantic import BaseModel, Field
+
+        class Human(BaseModel):
+            name: str = Field(..., min_length=1, json_schema_extra={"some_extra_field": "some_extra_field_value"})
+        """
+        self.assertCodemod(before, after)