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use std::collections::vec_deque::Iter;
use std::collections::VecDeque;
use std::sync::mpsc;
use std::thread;
use crate::config;
use crate::context::{LocalStateContext, TabContext};
use crate::io::{IOWorkerObserver, IOWorkerProgress, IOWorkerThread};
use crate::util::event::{Event, Events};
pub struct JoshutoContext {
pub exit: bool,
config: config::JoshutoConfig,
events: Events,
tab_context: TabContext,
local_state: Option<LocalStateContext>,
search_state: Option<String>,
message_queue: VecDeque<String>,
worker_queue: VecDeque<IOWorkerThread>,
worker: Option<IOWorkerObserver>,
}
impl JoshutoContext {
pub fn new(config: config::JoshutoConfig) -> Self {
Self {
exit: false,
events: Events::new(),
tab_context: TabContext::new(),
local_state: None,
search_state: None,
message_queue: VecDeque::with_capacity(4),
worker_queue: VecDeque::new(),
worker: None,
config,
}
}
pub fn config_ref(&self) -> &config::JoshutoConfig {
&self.config
}
pub fn config_mut(&mut self) -> &mut config::JoshutoConfig {
&mut self.config
}
pub fn tab_context_ref(&self) -> &TabContext {
&self.tab_context
}
pub fn tab_context_mut(&mut self) -> &mut TabContext {
&mut self.tab_context
}
pub fn message_queue_ref(&self) -> &VecDeque<String> {
&self.message_queue
}
pub fn push_msg(&mut self, msg: String) {
self.message_queue.push_back(msg);
}
pub fn pop_msg(&mut self) -> Option<String> {
self.message_queue.pop_front()
}
// event related
pub fn poll_event(&self) -> Result<Event, mpsc::RecvError> {
self.events.next()
}
pub fn get_event_tx(&self) -> mpsc::Sender<Event> {
self.events.event_tx.clone()
}
pub fn flush_event(&self) {
self.events.flush();
}
// local state related
pub fn set_local_state(&mut self, state: LocalStateContext) {
self.local_state = Some(state);
}
pub fn take_local_state(&mut self) -> Option<LocalStateContext> {
self.local_state.take()
}
pub fn set_search_state(&mut self, pattern: String) {
self.search_state = Some(pattern);
}
pub fn get_search_state(&self) -> Option<&String> {
self.search_state.as_ref()
}
// worker related
pub fn add_worker(&mut self, thread: IOWorkerThread) {
self.worker_queue.push_back(thread);
}
pub fn worker_is_busy(&self) -> bool {
self.worker.is_some()
}
pub fn worker_is_empty(&self) -> bool {
self.worker_queue.is_empty()
}
pub fn worker_iter(&self) -> Iter<IOWorkerThread> {
self.worker_queue.iter()
}
pub fn worker_ref(&self) -> Option<&IOWorkerObserver> {
self.worker.as_ref()
}
pub fn set_worker_progress(&mut self, res: IOWorkerProgress) {
if let Some(s) = self.worker.as_mut() {
s.set_progress(res);
}
}
pub fn update_worker_msg(&mut self) {
if let Some(s) = self.worker.as_mut() {
s.update_msg();
}
}
pub fn worker_msg(&self) -> Option<&str> {
let worker = self.worker.as_ref()?;
Some(worker.get_msg())
}
pub fn start_next_job(&mut self) {
let tx = self.get_event_tx();
if let Some(worker) = self.worker_queue.pop_front() {
let src = worker.paths[0].parent().unwrap().to_path_buf();
let dest = worker.dest.clone();
let handle = thread::spawn(move || {
let (wtx, wrx) = mpsc::channel();
// start worker
let worker_handle = thread::spawn(move || worker.start(wtx));
// relay worker info to event loop
while let Ok(progress) = wrx.recv() {
let _ = tx.send(Event::IOWorkerProgress(progress));
}
let result = worker_handle.join();
match result {
Ok(res) => {
let _ = tx.send(Event::IOWorkerResult(res));
}
Err(_) => {
let err = std::io::Error::new(std::io::ErrorKind::Other, "Sending Error");
let _ = tx.send(Event::IOWorkerResult(Err(err)));
}
}
});
let observer = IOWorkerObserver::new(handle, src, dest);
self.worker = Some(observer);
}
}
pub fn remove_job(&mut self) -> Option<IOWorkerObserver> {
self.worker.take()
}
}
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