feat: added competition logic

services/backend/api/v1/competition/schemas.py

@@ -1,8 +1,9 @@
+from typing import Literal
 from uuid import UUID
 
-from ninja import ModelSchema
+from ninja import ModelSchema, Schema
 
-from apps.competition.models import Competition
+from apps.competition.models import Competition, State
 
 
 class CompetitionOut(ModelSchema):
@@ -12,12 +13,31 @@ class CompetitionOut(ModelSchema):
         model = Competition
         fields = "__all__"
 
+class StateOut(ModelSchema):
+    class Meta:
+        model = State
+        fields = (
+            "state",
+        )
+
+class StateIn(Schema):
+    state: Literal["started", "not_started", "finished"]
 
 class CompetitionListInstanceOut(ModelSchema):
     id: UUID
     is_participating: bool
     completed: bool
 
+    @staticmethod
+    def resolve_is_participating(self, context):
+        user = context["request"].auth
+        return self.participants.filter(id=user.id).exists()
+
+    @staticmethod
+    def resolve_completed(self, context):
+        user = context["request"].auth
+        return State.objects.filter(competition=self, user=user, state="finished").exists()
+
     class Meta:
         model = Competition
         fields = (