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|
use std::{fs, path};
use crate::io::{JoshutoDirEntry, JoshutoMetadata};
use crate::sort;
use crate::window::JoshutoPageState;
#[derive(Debug)]
pub struct JoshutoDirList {
pub index: Option<usize>,
path: path::PathBuf,
outdated: bool,
pub metadata: JoshutoMetadata,
pub contents: Vec<JoshutoDirEntry>,
pub pagestate: JoshutoPageState,
}
impl JoshutoDirList {
pub fn new(
path: path::PathBuf,
sort_option: &sort::SortOption,
) -> Result<Self, std::io::Error> {
let mut contents = read_dir_list(path.as_path(), sort_option)?;
contents.sort_by(&sort_option.compare_func());
let index = if contents.is_empty() { None } else { Some(0) };
let metadata = JoshutoMetadata::from(&path)?;
let pagestate = JoshutoPageState::default();
Ok(JoshutoDirList {
index,
path,
outdated: false,
metadata,
contents,
pagestate,
})
}
pub fn depreciate(&mut self) {
self.outdated = true;
}
pub fn need_update(&self) -> bool {
self.outdated
}
pub fn file_path(&self) -> &path::PathBuf {
&self.path
}
pub fn update_contents(
&mut self,
sort_option: &sort::SortOption,
) -> Result<(), std::io::Error> {
let sort_func = sort_option.compare_func();
let mut contents = read_dir_list(&self.path, sort_option)?;
contents.sort_by(&sort_func);
let contents_len = contents.len();
if contents_len == 0 {
self.index = None;
} else {
self.index = match self.index {
Some(index) => {
if index >= contents_len {
Some(contents_len - 1)
} else {
self.index
}
}
None => Some(0),
};
}
let metadata = JoshutoMetadata::from(&self.path)?;
self.metadata = metadata;
self.contents = contents;
self.outdated = false;
Ok(())
}
pub fn selected_entries(&self) -> impl Iterator<Item = &JoshutoDirEntry> {
self.contents.iter().filter(|entry| entry.is_selected())
}
pub fn get_selected_paths(&self) -> Option<Vec<path::PathBuf>> {
let vec: Vec<path::PathBuf> = self
.selected_entries()
.map(|e| e.file_path().clone())
.collect();
if vec.is_empty() {
Some(vec![self.get_curr_ref()?.file_path().clone()])
} else {
Some(vec)
}
}
pub fn get_curr_ref(&self) -> Option<&JoshutoDirEntry> {
self.get_curr_ref_(self.index?)
}
pub fn get_curr_mut(&mut self) -> Option<&mut JoshutoDirEntry> {
self.get_curr_mut_(self.index?)
}
fn get_curr_mut_(&mut self, index: usize) -> Option<&mut JoshutoDirEntry> {
if index < self.contents.len() {
Some(&mut self.contents[index])
} else {
None
}
}
fn get_curr_ref_(&self, index: usize) -> Option<&JoshutoDirEntry> {
if index < self.contents.len() {
Some(&self.contents[index])
} else {
None
}
}
}
fn read_dir_list(
path: &path::Path,
sort_option: &sort::SortOption,
) -> Result<Vec<JoshutoDirEntry>, std::io::Error> {
let filter_func = sort_option.filter_func();
let results: fs::ReadDir = fs::read_dir(path)?;
let result_vec: Vec<JoshutoDirEntry> = results
.filter(filter_func)
.filter_map(sort::map_entry_default)
.collect();
Ok(result_vec)
}
|
