Cleanup (#121)

* remove unneeded identity .map()

* remove redunant field name in struct

* impl num_siblings for Node

* replace nested if w/ match in get_tree_chars

* remove unneeded field name in struct

* remove redundant println! & logic in display_node

* make get_children_from_node a Node method

* Revert "remove redundant println! & logic in display_node"

This reverts commit 40777025d5.

src/utils/mod.rs

@@ -17,7 +17,7 @@ use self::platform::*;
 
 type PathData = (PathBuf, u64, Option<(u64, u64)>);
 
-#[derive(Debug, Default, Eq)]
+#[derive(Debug, Default, Eq, Clone)]
 pub struct Node {
     pub name: PathBuf,
     pub size: u64,
@@ -46,6 +46,22 @@ impl PartialEq for Node {
     }
 }
 
+impl Node {
+    pub fn num_siblings(&self) -> u64 {
+        self.children.len() as u64
+    }
+
+    pub fn get_children_from_node(&self, is_reversed: bool) -> impl Iterator<Item = Node> {
+        let children = self.children.clone();
+        if is_reversed {
+            let children: Vec<Node> = children.into_iter().rev().collect();
+            return children.into_iter();
+        }
+
+        children.into_iter()
+    }
+}
+
 pub fn is_a_parent_of<P: AsRef<Path>>(parent: P, child: P) -> bool {
     let parent = parent.as_ref();
     let child = child.as_ref();