move checked todos to bottom

todo/display.go

@@ -14,14 +14,28 @@ func (widget *Widget) display() {
 	maxLen := widget.longestLineLen(widget.list.Items)
 
 	str := ""
+	checked := []*Item{}
+	uncheckedLen := 0
+	var selected *Item
+	var newList List
 	for idx, item := range widget.list.Items {
 		foreColor, backColor := "white", "black"
 
-		if item.Checked {
-			foreColor = Config.UString("wtf.mods.todo.colors.checked", "white")
+		// save the selected one
+		if idx == widget.list.selected {
+			selected = item
 		}
 
-		if widget.View.HasFocus() && idx == widget.list.selected {
+		if item.Checked {
+			checked = append(checked, item)
+			continue
+		}
+
+		uncheckedLen++
+
+		if widget.View.HasFocus() && item == selected {
+			// set selected item index
+			newList.selected = idx
 			foreColor = Config.UString("wtf.mods.todo.colors.highlight.fore", "black")
 			backColor = Config.UString("wtf.mods.todo.colors.highlight.back", "white")
 		}
@@ -35,7 +49,32 @@ func (widget *Widget) display() {
 		)
 
 		str = str + wtf.PadRow((4+len(item.Text)), (4+maxLen)) + "\n"
+
+		newList.Items = append(newList.Items, item)
 	}
+	for idx, item := range checked {
+		foreColor, backColor := Config.UString("wtf.mods.todo.colors.checked", "white"), "black"
+
+		if widget.View.HasFocus() && item == selected {
+			newList.selected = idx + uncheckedLen
+			foreColor = Config.UString("wtf.mods.todo.colors.highlight.fore", "black")
+			backColor = Config.UString("wtf.mods.todo.colors.highlight.back", "white")
+		}
+		str = str + fmt.Sprintf(
+			"[%s:%s]|%s| %s[white]",
+			foreColor,
+			backColor,
+			item.CheckMark(),
+			item.Text,
+		)
+
+		str = str + wtf.PadRow((4+len(item.Text)), (4+maxLen)) + "\n"
+
+		newList.Items = append(newList.Items, item)
+	}
+
+	// update list with new Items and selected item index
+	widget.list = &newList
 
 	fmt.Fprintf(widget.View, "%s", str)
 }