1use std::ops::Shr;
2
3use crate::{error::PoolResult, mark::Mark, node::Node};
4
5use super::{MarkRef, NodeRef};
6
7impl<'a> Shr<Node> for NodeRef<'a> {
10 type Output = PoolResult<NodeRef<'a>>;
11 fn shr(
12 self,
13 node: Node,
14 ) -> Self::Output {
15 self.tree.add_node(&self.key.clone(), &vec![node])?;
17 Ok(NodeRef::new(self.tree, self.key.clone()))
18 }
19}
20
21impl<'a> Shr<Vec<Node>> for NodeRef<'a> {
24 type Output = PoolResult<NodeRef<'a>>;
25 fn shr(
26 self,
27 nodes: Vec<Node>,
28 ) -> Self::Output {
29 if !nodes.is_empty() {
30 self.tree.add_node(&self.key.clone(), &nodes)?;
31 }
32 Ok(NodeRef::new(self.tree, self.key.clone()))
33 }
34}
35
36impl<'a> Shr<usize> for NodeRef<'a> {
39 type Output = PoolResult<NodeRef<'a>>;
40 fn shr(
41 self,
42 positions: usize,
43 ) -> Self::Output {
44 if let Some(parent) = self.tree.get_parent_node(&self.key.clone()) {
46 let siblings = self.tree.children(&parent.id).unwrap_or_default();
47
48 if let Some(current_index) =
49 siblings.iter().position(|id| id.clone() == self.key)
50 {
51 let max_index = siblings.len().saturating_sub(1);
53 let new_index = (current_index + positions).min(max_index);
54
55 if new_index != current_index {
57 let mut node = self
59 .tree
60 .get_node(&self.key.clone())
61 .unwrap()
62 .as_ref()
63 .clone();
64 let mut content = node.content.clone();
65 content.swap(current_index, new_index);
66 node.content = content;
67 self.tree.update_node(node)?;
68 }
69 }
70 }
71
72 Ok(NodeRef::new(self.tree, self.key.clone()))
73 }
74}
75
76impl<'a> Shr<Mark> for MarkRef<'a> {
79 type Output = PoolResult<MarkRef<'a>>;
80 fn shr(
81 self,
82 mark: Mark,
83 ) -> Self::Output {
84 self.tree.add_mark(&self.key.clone(), &vec![mark])?;
86 Ok(MarkRef::new(self.tree, self.key.clone()))
87 }
88}
89
90impl<'a> Shr<Vec<Mark>> for MarkRef<'a> {
93 type Output = PoolResult<MarkRef<'a>>;
94 fn shr(
95 self,
96 marks: Vec<Mark>,
97 ) -> Self::Output {
98 if !marks.is_empty() {
99 self.tree.add_mark(&self.key.clone(), &marks)?;
100 }
101 Ok(MarkRef::new(self.tree, self.key.clone()))
102 }
103}