From 7555ef01ae06d1c810472fe2f95f65fb5f4b4d42 Mon Sep 17 00:00:00 2001
From: Jason Liu <jxnl@users.noreply.github.com>
Date: Wed, 14 Jun 2023 19:45:23 +0900
Subject: [PATCH] create code

---
 openai_function_call.py | 59 +++++++++++++++++++++++++++++++++++++++++
 1 file changed, 59 insertions(+)
 create mode 100644 openai_function_call.py

diff --git a/openai_function_call.py b/openai_function_call.py
new file mode 100644
index 0000000..4ed50e4
--- /dev/null
+++ b/openai_function_call.py
@@ -0,0 +1,59 @@
+import json
+from functools import wraps
+from typing import Any, Callable
+from pydantic import validate_arguments, BaseModel
+
+
+class openai_function:
+    def __init__(self, func: Callable) -> None:
+        self.func = func
+        self.validate_func = validate_arguments(func)
+        self.openai_schema = {
+            "name": self.func.__name__,
+            "description": self.func.__doc__,
+            "parameters": self.validate_func.model.schema(),
+        }
+        self.model = self.validate_func.model
+
+    def __call__(self, *args: Any, **kwargs: Any) -> Any:
+        @wraps(self.func)
+        def wrapper(*args, **kwargs):
+            return self.validate_func(*args, **kwargs)
+        return wrapper(*args, **kwargs)
+    
+    def from_response(self, completion, throw_error=True):
+        """Execute the function from the response of an openai chat completion"""
+        message = completion.choices[0].message
+
+        if throw_error:
+            assert "function_call" in message, "No function call detected"
+            assert message["function_call"]["name"] == self.schema["name"], "Function name does not match"
+
+        function_call = message["function_call"]
+        arguments = json.loads(function_call["arguments"])
+        return self.validate_func(**arguments)
+
+      
+class OpenAISchema(BaseModel):
+
+    @classmethod
+    @property
+    def openai_schema(cls):
+        schema = cls.schema()
+        return {
+            "name": schema["title"],
+            "description": schema["description"],
+            "parameters": schema
+        }
+
+    @classmethod
+    def from_response(cls, completion, throw_error=True):
+        message = completion.choices[0].message
+
+        if throw_error:
+            assert "function_call" in message, "No function call detected"
+            assert message["function_call"]["name"] == cls.openai_schema["name"], "Function name does not match"
+            
+        function_call = message["function_call"]
+        arguments = json.loads(function_call["arguments"])
+        return cls(**arguments)