src/cpl_core/dependency_injection/service_collection.py

@@ -1,4 +1,4 @@
-from typing import Union, Type, Callable, Optional
+from typing import Union, Type, Callable, Optional, overload
 
 import lifetime as lifetime
 
@@ -24,7 +24,7 @@ class ServiceCollection(ServiceCollectionABC):
         self._database_context: Optional[DatabaseContextABC] = None
         self._service_descriptors: list[ServiceDescriptor] = []
 
-    def _add_descriptor(self, service: Union[type, object], lifetime: ServiceLifetimeEnum):
+    def _add_descriptor(self, service: Union[type, object], lifetime: ServiceLifetimeEnum, base_type: Callable = None):
         found = False
         for descriptor in self._service_descriptors:
             if isinstance(service, descriptor.service_type):
@@ -37,11 +37,11 @@ class ServiceCollection(ServiceCollectionABC):
 
             raise Exception(f'Service of type {service_type} already exists')
 
-        self._service_descriptors.append(ServiceDescriptor(service, lifetime))
+        self._service_descriptors.append(ServiceDescriptor(service, lifetime, base_type))
 
     def _add_descriptor_by_lifetime(self, service_type: Type, lifetime: ServiceLifetimeEnum, service: Callable = None):
         if service is not None:
-            self._add_descriptor(service, lifetime)
+            self._add_descriptor(service, lifetime, service_type)
         else:
             self._add_descriptor(service_type, lifetime)
 

src/cpl_core/dependency_injection/service_descriptor.py

@@ -1,5 +1,6 @@
 from typing import Union, Optional
 
+from cpl_core.console import Console
 from cpl_core.dependency_injection.service_lifetime_enum import ServiceLifetimeEnum
 
 
@@ -14,7 +15,7 @@ class ServiceDescriptor:
             Lifetime of the service
     """
 
-    def __init__(self, implementation: Union[type, Optional[object]], lifetime: ServiceLifetimeEnum):
+    def __init__(self, implementation: Union[type, Optional[object]], lifetime: ServiceLifetimeEnum, base_type=None):
 
         self._service_type = implementation
         self._implementation = implementation
@@ -25,10 +26,16 @@ class ServiceDescriptor:
         else:
             self._implementation = None
 
+        self._base_type = base_type if base_type is not None else self._service_type
+
     @property
     def service_type(self) -> type:
         return self._service_type
 
+    @property
+    def base_type(self) -> type:
+        return self._base_type
+
     @property
     def implementation(self) -> Union[type, Optional[object]]:
         return self._implementation

src/cpl_core/dependency_injection/service_provider.py

@@ -37,7 +37,7 @@ class ServiceProvider(ServiceProviderABC):
 
     def _find_service(self, service_type: type) -> Optional[ServiceDescriptor]:
         for descriptor in self._service_descriptors:
-            if descriptor.service_type == service_type or issubclass(descriptor.service_type, service_type):
+            if descriptor.service_type == service_type or issubclass(descriptor.base_type, service_type):
                 return descriptor
 
         return None

src/tests/custom/general/src/general/application.py

@@ -49,4 +49,5 @@ class Application(ApplicationABC):
         test2: TestService = self._services.get_service(TestService)
         ip_pipe2: IPAddressPipe = self._services.get_service(IPAddressPipe)
         Console.write_line(f'DI working: {test == test2 and ip_pipe != ip_pipe2}')
+        Console.write_line(self._services.get_service(LoggerABC))
         # self.test_send_mail()