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use std::ffi;
use std::fs;
use std::path::{Path, PathBuf};
use std::time;
use sort;
use window::JoshutoPageState;
#[derive(Clone, Debug)]
pub struct JoshutoMetadata {
pub len: u64,
pub modified: time::SystemTime,
pub permissions: fs::Permissions,
pub file_type: fs::FileType,
}
impl JoshutoMetadata {
pub fn from(metadata: &fs::Metadata) -> Result<Self, std::io::Error> {
let len = metadata.len();
let modified = metadata.modified()?;
let permissions = metadata.permissions();
let file_type = metadata.file_type();
Ok(JoshutoMetadata {
len,
modified,
permissions,
file_type,
})
}
}
#[derive(Clone)]
pub struct JoshutoDirEntry {
pub file_name: ffi::OsString,
pub file_name_as_string: String,
pub path: PathBuf,
pub metadata: JoshutoMetadata,
pub selected: bool,
pub marked: bool,
}
impl JoshutoDirEntry {
pub fn from(direntry: &fs::DirEntry) -> Result<Self, std::io::Error> {
let file_name = direntry.file_name();
let file_name_as_string: String = match file_name.clone().into_string() {
Ok(s) => s,
Err(_) => {
return Err(std::io::Error::new(
std::io::ErrorKind::NotFound,
"Failed to get file_name",
));
}
};
let path = direntry.path();
let metadata = direntry.metadata()?;
let metadata = JoshutoMetadata::from(&metadata)?;
let dir_entry = JoshutoDirEntry {
file_name,
file_name_as_string,
path,
metadata,
selected: false,
marked: false,
};
Ok(dir_entry)
}
}
impl std::fmt::Debug for JoshutoDirEntry {
fn fmt(&self, f: &mut std::fmt::Formatter) -> Result<(), std::fmt::Error> {
write!(f, "JoshutoDirEntry {{\n\tfile_name: {:?}, \n\tfile_name_as_string: {}, \n\tpath: {:?} \n}}",
self.file_name, self.file_name_as_string, self.path)
}
}
#[derive(Debug)]
pub struct JoshutoDirList {
pub index: i32,
pub path: PathBuf,
pub update_needed: bool,
pub metadata: JoshutoMetadata,
pub contents: Vec<JoshutoDirEntry>,
pub pagestate: JoshutoPageState,
}
impl JoshutoDirList {
pub fn new(path: PathBuf, sort_type: &sort::SortType) -> Result<Self, std::io::Error> {
let mut contents = Self::read_dir_list(path.as_path(), sort_type)?;
contents.sort_by(&sort_type.compare_func());
let index = if !contents.is_empty() { 0 } else { -1 };
let metadata = fs::metadata(&path)?;
let metadata = JoshutoMetadata::from(&metadata)?;
let pagestate = JoshutoPageState::new();
Ok(JoshutoDirList {
index,
path,
update_needed: false,
metadata,
contents,
pagestate,
})
}
fn read_dir_list(
path: &Path,
sort_type: &sort::SortType,
) -> Result<Vec<JoshutoDirEntry>, std::io::Error> {
let filter_func = sort_type.filter_func();
let results: fs::ReadDir = fs::read_dir(path)?;
let result_vec: Vec<JoshutoDirEntry> = results.filter_map(filter_func).collect();
Ok(result_vec)
}
pub fn need_update(&self) -> bool {
if self.update_needed {
return true;
}
if let Ok(metadata) = std::fs::metadata(&self.path) {
if let Ok(modified) = metadata.modified() {
return self.metadata.modified < modified;
}
}
true
}
pub fn update_contents(&mut self, sort_type: &sort::SortType) -> Result<(), std::io::Error> {
let sort_func = sort_type.compare_func();
self.update_needed = false;
let mut contents = Self::read_dir_list(&self.path, sort_type)?;
contents.sort_by(&sort_func);
let contents_len = contents.len() as i32;
if contents_len == 0 {
self.index = -1;
} else if self.index >= contents_len {
self.index = contents_len - 1;
} else if self.index >= 0 && self.index < contents_len {
} else {
self.index = 0;
}
let metadata = std::fs::metadata(&self.path)?;
let metadata = JoshutoMetadata::from(&metadata)?;
self.metadata = metadata;
self.contents = contents;
Ok(())
}
pub fn get_curr_ref(&self) -> Option<&JoshutoDirEntry> {
self.get_curr_ref_(self.index)
}
pub fn get_curr_mut(&mut self) -> Option<&mut JoshutoDirEntry> {
let index = self.index;
self.get_curr_mut_(index)
}
fn get_curr_mut_(&mut self, index: i32) -> Option<&mut JoshutoDirEntry> {
if index >= 0 && (index as usize) < self.contents.len() {
Some(&mut self.contents[index as usize])
} else {
None
}
}
fn get_curr_ref_(&self, index: i32) -> Option<&JoshutoDirEntry> {
if index >= 0 && (index as usize) < self.contents.len() {
Some(&self.contents[index as usize])
} else {
None
}
}
pub fn curr_toggle_select(&mut self) {
let index = self.index;
self.toggle_select(index);
}
fn toggle_select(&mut self, index: i32) {
if index >= 0 && (index as usize) < self.contents.len() {
let tmp_bool = !self.contents[index as usize].selected;
self.contents[index as usize].selected = tmp_bool;
}
}
}
|
