work on v0.3.0

argenta/command/entity.py

@@ -0,0 +1,36 @@
+from .params.flag.entity import Flag
+from .params.flags_group.entity import FlagsGroup
+from .exceptions import (InvalidCommandInstanceException,
+                         InvalidDescriptionInstanceException,
+                         InvalidFlagsInstanceException)
+
+
+class Command:
+    def __init__(self, command: str,
+                 description: str | None = None,
+                 flags: Flag | FlagsGroup | None = None):
+        self._command = command
+        self._description = description
+        self._flags = flags
+
+    def get_string_entity(self):
+        return self._command
+
+    def get_description(self):
+        if not self._description:
+            description = f'description for "{self._command}" command'
+            return description
+        else:
+            return self._description
+
+    def get_flags(self):
+        return self._flags
+
+    def validate_commands_params(self):
+        if not isinstance(self._command, str):
+            raise InvalidCommandInstanceException(self._command)
+        if isinstance(self._description, str):
+            raise InvalidDescriptionInstanceException()
+        if isinstance(self._flags, Flag) or isinstance(self._flags, FlagsGroup):
+            raise InvalidFlagsInstanceException
+