create event (#10)

* create event

* style: format code with Black and isort

This commit fixes the style issues introduced in 39883f8 according to the output
from Black and isort.

Details: #10

---------

Co-authored-by: deepsource-autofix[bot] <62050782+deepsource-autofix[bot]@users.noreply.github.com>

github_app/CreateEvent.py

@@ -0,0 +1,35 @@
+from github.NamedUser import NamedUser
+from github.Repository import Repository
+
+from github_app.Event import Event
+from github_app.LazyCompletableGithubObject import LazyCompletableGithubObject
+
+
+class CreateEvent(Event):
+    """This class represents a branch or tag creation event."""
+
+    name = "create"
+
+    def __init__(
+        self,
+        description,
+        master_branch,
+        pusher_type,
+        ref,
+        ref_type,
+        repository,
+        sender,
+        **kwargs,
+    ):
+        super().__init__(**kwargs)
+        self.description: str = description
+        self.master_branch: str = master_branch
+        self.pusher_type: str = pusher_type
+        self.ref: str = ref
+        self.ref_type: str = ref_type
+        self.repository: Repository = LazyCompletableGithubObject.get_lazy_instance(
+            Repository, attributes=repository
+        )
+        self.sender: NamedUser = LazyCompletableGithubObject.get_lazy_instance(
+            NamedUser, attributes=sender
+        )

github_app/Event.py

@@ -32,7 +32,7 @@ def __init__(self, headers, installation):
     def parse_event(cls, headers, body):
         """Returns an Event classe for the event in webhook"""
         event = headers["X-Github-Event"]
-        action = body.pop("action")
+        action = body.pop("action", None)
         event_class = cls.get_webhook_class(event, action)
         return event_class(headers=headers, **body)
 
@@ -44,6 +44,8 @@ def get_webhook_class(cls, event, action):
             raise ValueError(f"Multiple webhook classes for '{event}'")
         if len(event_classes) == 1:
             event_class = event_classes[0]
+            if action is None:
+                return event_class
             action_classes = list(
                 filter(lambda x: x.action == action, event_class.__subclasses__())
             )

tests/factory.py

@@ -4,7 +4,9 @@
 def event_factory(event="event", action="action", add_to_body=None):
     """Factory to create events"""
     add_to_body = add_to_body or []
-    body = {"action": action, "installation": {"id": 123}}
+    body = {"installation": {"id": 123}}
+    if action:
+        body["action"] = action
     for item in add_to_body:
         body.update({item: {}})
     return Event.parse_event(

tests/test_create.py

@@ -0,0 +1,19 @@
+from github_app.CreateEvent import CreateEvent
+from tests.factory import event_factory
+
+
+def test_create():
+    event = event_factory(
+        "create",
+        None,
+        add_to_body=[
+            "description",
+            "master_branch",
+            "pusher_type",
+            "ref",
+            "ref_type",
+            "repository",
+            "sender",
+        ],
+    )
+    assert isinstance(event, CreateEvent)