Restructure element classes yet again

cheuph/element.py

@@ -1,17 +1,85 @@
-from dataclasses import dataclass
-from typing import Hashable, Optional
+import datetime
+from typing import Hashable, List, Optional
 
-__all__ = ["Id", "Element", "RenderedElement"]
+from .markup import AttributedText
+
+__all__ = ["Id", "Element", "RenderedElement", "Message", "RenderedMessage"]
 
 Id = Hashable
 
-@dataclass
 class Element:
-    id: Id
-    parent_id: Optional[Id]
 
-@dataclass
+    def __init__(self,
+            id: Id,
+            parent_id: Optional[Id],
+            ) -> None:
+
+        self._id = id
+        self._parent_id = parent_id
+
+    @property
+    def id(self) -> Id:
+        return self._id
+
+    @property
+    def parent_id(self) -> Optional[Id]:
+        return self._parent_id
+
 class RenderedElement:
-    id: Id
-    meta: AttributedText
-    lines: List[AttributedText]
+    def __init__(self,
+            id: Id,
+            lines: List[AttributedText],
+            ) -> None:
+
+        self._id = id
+        self._lines = lines
+
+    @property
+    def id(self) -> Id:
+        return self._id
+
+    @property
+    def lines(self) -> List[AttributedText]:
+        return self._lines
+
+class Message(Element):
+
+    def __init__(self,
+            id: Id,
+            parent_id: Optional[Id],
+            timestamp: datetime.datetime,
+            nick: str,
+            content: str,
+            ) -> None:
+
+        super().__init__(id, parent_id)
+        self._timestamp = timestamp
+        self._nick = nick
+        self._content = content
+
+    @property
+    def timestamp(self) -> datetime.datetime:
+        return self._timestamp
+
+    @property
+    def nick(self) -> str:
+        return self._nick
+
+    @property
+    def content(self) -> str:
+        return self._content
+
+class RenderedMessage(RenderedElement):
+
+    def __init__(self,
+            id: Id,
+            lines: List[AttributedText],
+            meta: AttributedText,
+            ) -> None:
+
+        super().__init__(id, lines)
+        self._meta = meta
+
+    @property
+    def meta(self) -> AttributedText:
+        return self._meta