Fix entries of transferred habits and dragging and dropping of groups

uhabits-android/src/main/java/org/isoron/uhabits/activities/habits/list/views/HabitCardListController.kt

@@ -52,19 +52,19 @@ class HabitCardListController @Inject constructor(
 
         val habitFrom = adapter.getHabit(from)
         val habitTo = adapter.getHabit(to)
-        if (habitFrom != null && habitTo != null) {
+        if (habitFrom != null) {
+            if (habitTo != null) {
                 adapter.performReorder(from, to)
                 behavior.onReorderHabit(habitFrom, habitTo)
+            }
             return
         }
 
-        val hgrFrom = adapter.getHabitGroup(from)
-        val hgrTo = adapter.getHabitGroup(to)
-        if (hgrFrom != null && hgrTo != null) {
+        val hgrFrom = adapter.getHabitGroup(from)!!
+        val hgrTo = adapter.getHabitGroup(to) ?: return
         adapter.performReorder(from, to)
         behavior.onReorderHabitGroup(hgrFrom, hgrTo)
     }
-    }
 
     override fun onItemClick(position: Int) {
         activeMode.onItemClick(position)

uhabits-core/src/jvmMain/java/org/isoron/uhabits/core/commands/AddToGroupCommand.kt

@@ -28,13 +28,15 @@ data class AddToGroupCommand(
     val selected: List<Habit>
 ) : Command {
     override fun run() {
-        for (h in selected) {
-            val oldGroup = h.group
-            (oldGroup?.habitList ?: habitList).remove(h)
-            h.groupId = hgr.id
-            h.groupUUID = hgr.uuid
-            h.group = hgr
-            hgr.habitList.add(h)
+        for (habit in selected) {
+            val entries = habit.originalEntries.getKnown()
+            val oldGroup = habit.group
+            (oldGroup?.habitList ?: habitList).remove(habit)
+            habit.groupId = hgr.id
+            habit.groupUUID = hgr.uuid
+            habit.group = hgr
+            hgr.habitList.add(habit)
+            entries.forEach { habit.originalEntries.add(it) }
         }
     }
 }

uhabits-core/src/jvmMain/java/org/isoron/uhabits/core/commands/RemoveFromGroupCommand.kt

@@ -28,11 +28,13 @@ data class RemoveFromGroupCommand(
     override fun run() {
         for (habit in selected) {
             val hgr = habit.group!!
+            val entries = habit.originalEntries.getKnown()
             hgr.habitList.remove(habit)
             habit.groupId = null
             habit.group = null
             habit.groupUUID = null
             habitList.add(habit)
+            entries.forEach { habit.originalEntries.add(it) }
         }
     }
 }

uhabits-core/src/jvmMain/java/org/isoron/uhabits/core/ui/screens/habits/list/HabitCardListCache.kt

@@ -534,7 +534,7 @@ class HabitCardListCache @Inject constructor(
             if (!isValidInsert(habitGroup, toPosition)) return
             val fromIdx = positionIndices[fromPosition]
             val habitList = subHabits[fromIdx]
-            val toIdx = habitGroups.indexOf(positionToHabitGroup[toPosition]) - (if (fromPosition < toPosition) 1 else 0)
+            val toIdx = habitGroups.indexOf(positionToHabitGroup[toPosition])
 
             habitGroups.removeAt(fromIdx)
             subHabits.removeAt(fromIdx)