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use std::collections::{hash_map::Entry, HashMap};
use std::path::{Path, PathBuf};
use crate::sort;
use crate::structs;
pub struct DirHistory {
map: HashMap<PathBuf, structs::JoshutoDirList>,
}
impl DirHistory {
pub fn new() -> Self {
DirHistory {
map: HashMap::new(),
}
}
pub fn populate_to_root(&mut self, pathbuf: &PathBuf, sort_type: &sort::SortType) {
let mut ancestors = pathbuf.ancestors();
if let Some(mut ancestor) = ancestors.next() {
for curr in ancestors {
match structs::JoshutoDirList::new(curr.to_path_buf().clone(), sort_type) {
Ok(mut s) => {
for (i, dirent) in s.contents.iter().enumerate() {
if dirent.path == ancestor {
s.index = i as i32;
break;
}
}
self.map.insert(curr.to_path_buf(), s);
}
Err(e) => eprintln!("{}", e),
};
ancestor = curr;
}
}
}
pub fn pop_or_create(
&mut self,
path: &Path,
sort_type: &sort::SortType,
) -> Result<structs::JoshutoDirList, std::io::Error> {
match self.map.remove(&path.to_path_buf()) {
Some(mut dir_entry) => {
if dir_entry.need_update() {
dir_entry.update_contents(&sort_type)?
}
Ok(dir_entry)
}
None => {
let path_clone = path.to_path_buf();
structs::JoshutoDirList::new(path_clone, &sort_type)
}
}
}
pub fn get_mut_or_create(
&mut self,
path: &Path,
sort_type: &sort::SortType,
) -> Option<&mut structs::JoshutoDirList> {
let pathbuf = path.to_path_buf();
match self.map.entry(pathbuf.clone()) {
Entry::Occupied(mut entry) => {
let dir_entry = entry.get_mut();
if dir_entry.need_update() {
dir_entry.update_contents(&sort_type).unwrap();
}
}
Entry::Vacant(entry) => {
if let Ok(s) = structs::JoshutoDirList::new(path.to_path_buf(), &sort_type) {
entry.insert(s);
}
}
};
self.map.get_mut(&pathbuf)
}
pub fn put_back(&mut self, dirlist: Option<structs::JoshutoDirList>) {
if let Some(s) = dirlist {
self.map.insert(s.path.clone(), s);
}
}
pub fn depecrate_all_entries(&mut self) {
self.map
.iter_mut()
.for_each(|(_, v)| v.update_needed = true);
}
}
|
