change response format for _update_goal to json schema

app/user.py

@@ -25,11 +25,6 @@ class UserDataItem(BaseModel):
 class UserDataResponse(BaseModel):
     data: list[UserDataItem]
 
-class GoalItem(BaseModel):
-    same_or_not: bool
-    goal: str
-    area: str
-
 logger = logging.getLogger(__name__)
 
 def get_current_datetime():
@@ -708,7 +703,43 @@ class User:
         response = self.client.chat.completions.create(
             model="gpt-4o",
             messages=[{"role": "user", "content": prompt}],
-            response_format = GoalItem,
+            response_format = {
+                "type": "json_schema",
+                "json_schema": {
+                "name": "goal_determination",
+                "strict": True,
+                "schema": {
+                    "type": "object",
+                    "properties": {
+                    "same_or_not": {
+                        "type": "boolean",
+                        "description": "Indicates whether the new goal is the same as the current goal."
+                    },
+                    "goal": {
+                        "type": "string",
+                        "description": "The final goal determined based on input."
+                    },
+                    "area": {
+                        "type": "string",
+                        "description": "The area of the goal.",
+                        "enum": [
+                        "Personal Growth",
+                        "Career Growth",
+                        "Relationship",
+                        "Mental Well-Being",
+                        "Health and Wellness"
+                        ]
+                    }
+                    },
+                    "required": [
+                    "same_or_not",
+                    "goal",
+                    "area"
+                    ],
+                    "additionalProperties": False
+                }
+                }
+            },
             temperature=0.2
         )