♻️ Initial refactor of page data structure (wip).

Still work in progress but is a necessary step for a future
(re)introduction of groups.

backend/tests/user.clj

@@ -86,3 +86,80 @@
                               '(promesa.core/let)]}}}})
        (kondo/print!))))
 
+(comment
+  {:version 1
+   :options {}
+   :shapes [:id1  :id2]
+   :canvas [:id3]
+   :shapes-by-id {:id1 {:canvas :id3} :id2 {} :id3 {}}})
+
+
+(comment
+  {:version 2
+   :options {}
+
+   :objects
+   {:root
+    {:type :frame
+     :shapes [:sid0 :frame-0]}
+
+    :frame0
+    {:type :frame
+     :parent :root
+     :shapes [:sid1 :sid2]}
+
+    :sid0
+    {:type :rect
+     :parent :root}
+
+    :sid1
+    {:type :rect
+     :parent :frame0}
+
+    :sid2
+    {:type :group
+     :shapes [:sid3 :sid4]
+     :parent :frame0}
+
+    :sid3
+    {:type :elipse
+     :parent :sid2}
+
+    :sid4
+    {:type :elipse
+     :parent :sid2}}})
+
+(comment
+  {:version 3
+   :options {}
+
+   :rmap
+   {:id1 :root-frame
+    :id2 :root-frame
+    :id3 :frame-id-1
+    :id4 :frame-id-2
+    :id5 :frame-id-2
+    :id6 :frame-id-2}
+
+   :frames
+   {:root-frame
+    {:type :frame
+     :shapes [:id1 :id2]
+     :objects
+     {:id1 {:type :rect}
+      :id2 {:type :elipse}}}
+
+    :frame-id-1
+    {:type :frame
+     :shapes [:id3]
+     :objects
+     {:id3 {:type :path}}}
+
+    :frame-id-2
+    {:type :frame
+     :shapes [:id4]
+     :objects
+     {:id4 {:type :group
+            :shapes [:id5 :id6]}
+      :id5 {:type :path :parent :id4}
+      :id6 {:type :elipse :parent :id4}}}}})