Improving functionalities and adding unit tests

src/components/undo_redo/components/UndoRedo.py

@@ -7,7 +7,7 @@ from components.BaseComponent import BaseComponentSingleton
 from components.undo_redo.assets.icons import icon_redo, icon_undo
 from components.undo_redo.commands import UndoRedoCommandManager
 from components.undo_redo.constants import UNDO_REDO_INSTANCE_ID
-from components_helpers import mk_icon
+from components_helpers import mk_icon, mk_tooltip
 
 logger = logging.getLogger("UndoRedoApp")
 
@@ -40,50 +40,67 @@ class UndoRedo(BaseComponentSingleton):
     self.index += 1
   
   def undo(self):
-    logger.info(f"Undo command")
-    return self
+    logger.debug(f"Undo command")
+    if self.index == 0:
+      logger.debug(f"  No command to undo.")
+      return self
+    
+    self.index -= 1
+    command = self.history[self.index]
+    logger.debug(f"  Undoing command {command.name} ({command.desc})")
+    res = command.undo()
+    return self, res
   
   def redo(self):
-    logger.info("Redo command")
-    if self.index > 0:
-      self.history.clear()
-      self.index = 0
-    else:
-      self.push("something")
-    return self
+    logger.debug("Redo command")
+    if self.index >= len(self.history):
+      logger.debug(f"  No command to redo.")
+      return self
+    
+    command = self.history[self.index]
+    logger.debug(f"  Redoing command {command.name} ({command.desc})")
+    res = command.redo()
+    self.index += 1
+    return self, res
   
-  def __ft__(self):
+  def __ft__(self, oob=False):
     return Div(
       self._mk_undo(),
       self._mk_redo(),
       id=self._id,
-      cls="flex"
+      cls="flex",
+      hx_swap_oob="true" if oob else None
     )
   
   def _mk_undo(self):
     if self._can_undo():
-      return mk_icon(icon_undo,
-                     size=24,
-                     **self._commands.undo())
+      command = self.history[self.index - 1]
+      return mk_tooltip(mk_icon(icon_undo,
+                                size=24,
+                                **self._commands.undo()),
+                        "Undo")
     else:
-      return mk_icon(icon_undo,
-                     size=24,
-                     can_select=False,
-                     cls="mmt-btn-disabled")
+      return mk_tooltip(mk_icon(icon_undo,
+                                size=24,
+                                can_select=False,
+                                cls="mmt-btn-disabled"),
+                        "Nothing to undo")
   
   def _mk_redo(self):
     if self._can_redo():
-      return mk_icon(icon_redo,
-                     size=24,
-                     **self._commands.redo())
+      return mk_tooltip(mk_icon(icon_redo,
+                                size=24,
+                                **self._commands.redo()),
+                        "Redo")
     else:
-      return mk_icon(icon_redo,
-                     size=24,
-                     can_select=False,
-                     cls="mmt-btn-disabled")
+      return mk_tooltip(mk_icon(icon_redo,
+                                size=24,
+                                can_select=False,
+                                cls="mmt-btn-disabled"),
+                        "Nothing to redo")
   
   def _can_undo(self):
     return self.index > 0
   
   def _can_redo(self):
-    return self.index < len(self.history) - 1
+    return self.index < len(self.history)