new window manager

bin/u_panel/Cargo.toml

@@ -7,6 +7,7 @@ edition = "2018"
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
+backtrace = "0.3.61"
 structopt = "0.3.21"
 log = "^0.4"
 env_logger = "0.7.1"

bin/u_panel/src/argparse.rs

@@ -19,7 +19,7 @@ pub struct Args {
 enum Cmd {
     Agents(LD),
     Jobs(JobALD),
-    Jobmap(JobMapALD),
+    Map(JobMapALD),
     TUI,
 }
 
@@ -127,7 +127,7 @@ pub async fn process_cmd(args: Args) -> UResult<()> {
             JobALD::LD(LD::List { uid }) => printer.print(CLIENT.get_jobs(uid).await),
             JobALD::LD(LD::Delete { uid }) => printer.print(CLIENT.del(Some(uid)).await),
         },
-        Cmd::Jobmap(action) => match action {
+        Cmd::Map(action) => match action {
             JobMapALD::Add {
                 agent_uid,
                 job_idents,

bin/u_panel/src/tui/impls.rs

@@ -7,23 +7,19 @@ pub trait Id {
     fn id(&self) -> Uuid;
 }
 
-impl Id for Agent {
+#[macro_export]
+macro_rules! impl_id {
+    ($($type:ty),+) => {
+        $(
+        impl Id for $type {
             fn id(&self) -> Uuid {
                 self.id
             }
+        })+
+    };
 }
 
-impl Id for JobMeta {
-    fn id(&self) -> Uuid {
-        self.id
-    }
-}
-
-impl Id for AssignedJob {
-    fn id(&self) -> Uuid {
-        self.id
-    }
-}
+impl_id!(Agent, JobMeta, AssignedJob);
 
 #[async_trait]
 pub trait CRUD: Id

bin/u_panel/src/tui/mod.rs

@@ -1,14 +1,13 @@
 mod impls;
-mod state;
-mod ui;
+mod windows;
 
-use anyhow::Result;
-use crossterm::event::{self, DisableMouseCapture, EnableMouseCapture, Event, KeyCode};
+use anyhow::Result as AResult;
+use backtrace::Backtrace;
+use crossterm::event::{self, DisableMouseCapture, EnableMouseCapture, Event};
 use crossterm::execute;
 use crossterm::terminal::{
     disable_raw_mode, enable_raw_mode, EnterAlternateScreen, LeaveAlternateScreen,
 };
-use state::State;
 use std::panic::set_hook;
 use std::process::exit;
 use std::{
@@ -18,36 +17,42 @@ use std::{
     time::Duration,
 };
 use tui::{backend::CrosstermBackend, Terminal};
+use windows::{MainWnd, WindowsHandler};
 
-type Frame<'f> = tui::Frame<'f, CrosstermBackend<Stdout>>;
+pub type Backend = CrosstermBackend<Stdout>;
+pub type Frame<'f> = tui::Frame<'f, Backend>;
 
 enum InputEvent<I> {
     Key(I),
     Tick,
 }
 
-pub async fn init_tui() -> Result<()> {
+fn get_terminal() -> AResult<Terminal<Backend>> {
+    let backend = CrosstermBackend::new(stdout());
+    Ok(Terminal::new(backend)?)
+}
+
+pub async fn init_tui() -> AResult<()> {
     //TODO: fix this
     set_hook(Box::new(|p| {
         teardown().unwrap();
-        eprintln!("{}", p);
+        get_terminal().unwrap().show_cursor().unwrap();
+        eprintln!("{}\n{:?}", p, Backtrace::new());
         exit(254);
     }));
-    let mut state = State::default();
-    if let Err(e) = init(&mut state).await {
+    if let Err(e) = init().await {
         teardown()?;
         return Err(e);
     }
     Ok(())
 }
 
-async fn init(state: &mut State) -> Result<()> {
-    let mut stdout = stdout();
+async fn init() -> AResult<()> {
     enable_raw_mode()?;
-    execute!(&mut stdout, EnterAlternateScreen, EnableMouseCapture)?;
+    execute!(stdout(), EnterAlternateScreen, EnableMouseCapture)?;
 
-    let backend = CrosstermBackend::new(stdout);
-    let mut terminal = Terminal::new(backend)?;
+    let mut wh = WindowsHandler::new(get_terminal()?);
+    wh.push::<MainWnd>();
     let (tx, rx) = mpsc::channel();
 
     thread::spawn(move || loop {
@@ -61,39 +66,23 @@ async fn init(state: &mut State) -> Result<()> {
         }
     });
 
-    terminal.clear()?;
+    wh.clear()?;
 
     loop {
-        state.check_updates().await;
-        terminal.draw(|f| ui::draw(f, state))?;
+        wh.draw()?;
+        wh.update().await?;
         match rx.recv()? {
-            InputEvent::Key(Event::Key(key)) => match key.code {
-                KeyCode::Esc => {
-                    teardown()?;
-                    terminal.show_cursor()?;
-                    break;
+            InputEvent::Key(Event::Key(key)) => {
+                wh.handle_kbd(key.code).await?;
             }
-                KeyCode::Left => state.prev_tab(),
-                KeyCode::Right => state.next_tab(),
-                KeyCode::Up => state.on_up(),
-                KeyCode::Down => state.on_down(),
-                KeyCode::Delete => {
-                    state.delete().await;
-                    state.update_tab();
-                }
-                KeyCode::F(5) => state.update_tab(),
-                _ => (),
-            },
             InputEvent::Tick => (),
             _ => unreachable!(),
         }
     }
-    Ok(())
 }
 
-fn teardown() -> Result<()> {
+fn teardown() -> AResult<()> {
     disable_raw_mode()?;
     execute!(stdout(), LeaveAlternateScreen, DisableMouseCapture)?;
-    eprintln!("teardown");
     Ok(())
 }

bin/u_panel/src/tui/ui.rs

@@ -1,43 +0,0 @@
-use super::{
-    state::{State, UiTabs},
-    Frame,
-};
-use tui::layout::{Constraint, Direction, Layout};
-use tui::style::{Color, Modifier, Style};
-use tui::text::Spans;
-use tui::widgets::{Block, Borders, List, ListItem, Tabs};
-
-pub fn draw(f: &mut Frame, s: &mut State) {
-    let size = f.size();
-    let chunks = Layout::default()
-        .direction(Direction::Vertical)
-        .margin(1)
-        .constraints([Constraint::Length(3), Constraint::Min(0)].as_ref())
-        .split(size);
-    let titles = UiTabs::variants()
-        .iter()
-        .cloned()
-        .map(Spans::from)
-        .collect();
-    let tabs = Tabs::new(titles)
-        .block(
-            Block::default()
-                .title("The whole that you need to know")
-                .borders(Borders::ALL),
-        )
-        .style(Style::default().fg(Color::White))
-        .highlight_style(Style::default().fg(Color::Yellow))
-        .divider("-")
-        .select(s.active_tab.index());
-    f.render_widget(tabs, chunks[0]);
-
-    let tab_data = s
-        .tab_data()
-        .into_iter()
-        .map(ListItem::new)
-        .collect::<Vec<ListItem>>();
-    let list = List::new(tab_data)
-        .block(Block::default().borders(Borders::ALL))
-        .highlight_style(Style::default().add_modifier(Modifier::BOLD));
-    f.render_stateful_widget(list, chunks[1], s.tab_list_state());
-}

bin/u_panel/src/tui/windows/main_wnd.rs

@@ -1,5 +1,7 @@
-use super::impls::CRUD;
+use super::Window;
+use crate::tui::{impls::CRUD, Frame};
 use anyhow::Result as AResult;
+use crossterm::event::KeyCode;
 use std::{fmt::Display, str::FromStr};
 use strum::VariantNames;
 use tokio::join;
@@ -7,6 +9,11 @@ use tui::widgets::ListState;
 use u_lib::models::{Agent, AssignedJob, JobMeta};
 use uuid::Uuid;
 
+use tui::layout::{Constraint, Direction, Layout};
+use tui::style::{Color, Modifier, Style};
+use tui::text::Spans;
+use tui::widgets::{Block, Borders, List, ListItem, Tabs};
+
 #[derive(strum::Display, strum::EnumVariantNames, strum::EnumString)]
 pub enum UiTabs {
     Agents,
@@ -82,7 +89,7 @@ impl<T: CRUD> Default for StatefulList<T> {
     }
 }
 
-pub struct State {
+pub struct MainWnd {
     pub active_tab: UiTabs,
     pub last_error: Option<String>,
     pub agents: StatefulList<Agent>,
@@ -90,9 +97,9 @@ pub struct State {
     pub map: StatefulList<AssignedJob>,
 }
 
-impl Default for State {
+impl Default for MainWnd {
     fn default() -> Self {
-        State {
+        MainWnd {
             active_tab: UiTabs::Agents,
             last_error: None,
             agents: Default::default(),
@@ -102,7 +109,7 @@ impl Default for State {
     }
 }
 
-impl State {
+impl MainWnd {
     pub fn next_tab(&mut self) {
         self.active_tab = self.active_tab.next()
     }
@@ -233,6 +240,74 @@ impl State {
     }
 }
 
+#[async_trait]
+impl Window for MainWnd {
+    async fn handle_kbd(&mut self, k: KeyCode) -> AResult<()> {
+        match k {
+            KeyCode::Esc => {
+                /*teardown()?;
+                wh.show_cursor()?;
+                break;*/
+            }
+            KeyCode::Left => self.prev_tab(),
+            KeyCode::Right => self.next_tab(),
+            KeyCode::Up => self.on_up(),
+            KeyCode::Down => self.on_down(),
+            KeyCode::Delete => {
+                self.delete().await;
+                self.update_tab();
+            }
+            KeyCode::F(5) => self.update_tab(),
+            _ => (),
+        };
+        Ok(())
+    }
+
+    async fn update(&mut self) -> AResult<()> {
+        self.check_updates().await;
+        Ok(())
+    }
+
+    async fn close(&mut self) {
+        //self.show_cursor()
+    }
+
+    fn draw(&mut self, f: &mut Frame) {
+        let size = f.size();
+        let chunks = Layout::default()
+            .direction(Direction::Vertical)
+            .margin(1)
+            .constraints([Constraint::Length(3), Constraint::Min(0)].as_ref())
+            .split(size);
+        let titles = UiTabs::variants()
+            .iter()
+            .cloned()
+            .map(Spans::from)
+            .collect();
+        let tabs = Tabs::new(titles)
+            .block(
+                Block::default()
+                    .title("The whole that you need to know")
+                    .borders(Borders::ALL),
+            )
+            .style(Style::default().fg(Color::White))
+            .highlight_style(Style::default().fg(Color::Yellow))
+            .divider("-")
+            .select(self.active_tab.index());
+        f.render_widget(tabs, chunks[0]);
+
+        let tab_data = self
+            .tab_data()
+            .into_iter()
+            .map(ListItem::new)
+            .collect::<Vec<ListItem>>();
+        let list = List::new(tab_data)
+            .block(Block::default().borders(Borders::ALL))
+            .highlight_style(Style::default().add_modifier(Modifier::BOLD));
+        f.render_stateful_widget(list, chunks[1], self.tab_list_state());
+    }
+}
+
 fn crop<T: Display>(data: T, retain: usize) -> String {
     data.to_string()[..retain].to_string()
 }

bin/u_panel/src/tui/windows/mod.rs

@@ -0,0 +1,94 @@
+mod main_wnd;
+mod processing;
+pub use main_wnd::MainWnd;
+
+use crate::tui::{Backend, Frame};
+use anyhow::Result as AResult;
+use crossterm::event::KeyCode;
+use std::cell::RefCell;
+use std::process::exit;
+use std::rc::Rc;
+use tui::Terminal;
+
+type Wnd = Rc<RefCell<dyn Window>>;
+
+#[async_trait]
+pub trait Window {
+    async fn handle_kbd(&mut self, k: KeyCode) -> AResult<()>;
+    async fn update(&mut self) -> AResult<()>;
+    async fn close(&mut self);
+    fn draw(&mut self, f: &mut Frame);
+}
+
+pub struct WindowsHandler {
+    queue: Vec<Wnd>,
+    term: Terminal<Backend>,
+    redraw_all: bool,
+}
+
+impl WindowsHandler {
+    fn get_last_wnd(&self) -> Wnd {
+        self.queue.last().expect("No windows found").clone()
+    }
+
+    pub fn new(term: Terminal<Backend>) -> Self {
+        Self {
+            term,
+            queue: vec![],
+            redraw_all: true,
+        }
+    }
+
+    pub fn push<W: Window + Default + 'static>(&mut self) {
+        let window = Rc::new(RefCell::new(W::default()));
+        self.queue.push(window);
+    }
+
+    pub fn clear(&mut self) -> AResult<()> {
+        self.term.clear()?;
+        Ok(())
+    }
+
+    pub fn show_cursor(&mut self) -> AResult<()> {
+        self.term.show_cursor()?;
+        Ok(())
+    }
+
+    pub fn draw(&mut self) -> AResult<()> {
+        if self.redraw_all {
+            for wnd in self.queue.iter() {
+                self.term.draw(|f| wnd.borrow_mut().draw(f))?;
+            }
+        } else {
+            let wnd = self.get_last_wnd();
+            self.term.draw(|f| wnd.borrow_mut().draw(f))?;
+        }
+        Ok(())
+    }
+
+    pub async fn close(&mut self) {
+        let wnd = self.queue.pop().unwrap();
+        wnd.borrow_mut().close().await;
+        self.redraw_all = true;
+        if self.queue.is_empty() {
+            self.show_cursor().unwrap();
+            exit(0);
+        }
+    }
+
+    pub async fn handle_kbd(&mut self, k: KeyCode) -> AResult<()> {
+        if let KeyCode::Esc = k {
+            self.close().await;
+        } else {
+            let current_wnd = self.get_last_wnd();
+            current_wnd.borrow_mut().handle_kbd(k).await?;
+        }
+        Ok(())
+    }
+
+    pub async fn update(&mut self) -> AResult<()> {
+        let current_wnd = self.get_last_wnd();
+        current_wnd.borrow_mut().update().await?;
+        Ok(())
+    }
+}