1 files changed, 16 insertions, 4 deletions
diff --git a/src/hydrilla/proxy/state.py b/src/hydrilla/proxy/state.py
index 0c6dff3..0e45725 100644
--- a/src/hydrilla/proxy/state.py
+++ b/src/hydrilla/proxy/state.py
@@ -47,6 +47,7 @@ from ..exceptions import HaketiloException
 from ..versions import VerTuple
 from ..url_patterns import ParsedPattern
 from .. import item_infos
+from .simple_dependency_satisfying import ImpossibleSituation
 
 
 class EnabledStatus(Enum):
@@ -112,11 +113,19 @@ class RepoUrlInvalid(HaketiloException):
 class RepoCommunicationError(HaketiloException):
     pass
 
-@dc.dataclass
-class FileInstallationError(RepoCommunicationError):
+@dc.dataclass(frozen=True)
+class FileInstallationError(HaketiloException):
     repo_id: str
     sha256:  str
 
+@dc.dataclass(frozen=True)
+class FileIntegrityError(FileInstallationError):
+    invalid_sha256: str
+
+@dc.dataclass(frozen=True)
+class FileMissingError(FileInstallationError):
+    pass
+
 class RepoApiVersionUnsupported(HaketiloException):
     pass
 
@@ -214,8 +223,11 @@ class MappingStore(Store[MappingRef]):
 class MappingVersionRef(Ref):
     """...."""
     @abstractmethod
-    def update_status(self, new_status: EnabledStatus) -> None:
-        """...."""
+    def install(self) -> None:
+        ...
+
+    @abstractmethod
+    def uninstall(self) -> None:
         ...
 
     @abstractmethod