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|
use ratatui::{
Frame,
layout::{Constraint, Layout},
style::Stylize,
widgets::Block,
};
use crate::{
background_loader::PackageLoader,
gentoo::portage::Portage,
screens::{
available_packages::AvailablePackagesScreen, dashboard::DashboardScreen,
installed_packages::InstalledPackagesScreen, screen::Screen,
},
signal::{Event, Signal},
theme::Theme,
widgets::tabs::render_tab,
};
#[derive(Debug)]
pub enum ViewState {
Dashboard = 0,
InstalledPackages = 1,
AvailablePackages = 2,
}
#[derive(Debug, Default, Clone, Copy)]
pub enum LoadingState {
#[default]
Idle,
Loading,
Complete,
Error,
}
#[derive(Debug)]
pub struct App {
portage: Portage,
dashboard_screen: DashboardScreen,
installed_package_screen: InstalledPackagesScreen,
available_package_screen: AvailablePackagesScreen,
pub view: ViewState,
available_loader: Option<PackageLoader>,
pub loading_state: LoadingState,
pub loading_error: Option<String>,
}
impl App {
pub fn new(portage: Portage) -> Self {
App {
portage,
dashboard_screen: DashboardScreen::default(),
installed_package_screen: InstalledPackagesScreen::default(),
available_package_screen: AvailablePackagesScreen::default(),
view: ViewState::Dashboard,
available_loader: None,
loading_state: LoadingState::Idle,
loading_error: None,
}
}
pub fn draw(&mut self, frame: &mut Frame) {
frame.render_widget(Block::default().bg(Theme::BG), frame.area());
let layout = Layout::vertical(vec![Constraint::Length(3), Constraint::Fill(1)]);
let [tab_bar, rest] = frame.area().layout(&layout);
render_tab(frame, tab_bar, &self.view);
match self.view {
ViewState::InstalledPackages => {
self.installed_package_screen
.draw(frame, rest, &self.portage);
}
ViewState::Dashboard => {
self.dashboard_screen.draw(frame, rest, &self.portage);
}
ViewState::AvailablePackages => {
self.available_package_screen
.draw(frame, rest, &self.portage);
}
}
}
pub fn update(&mut self, event: Event) -> color_eyre::Result<bool> {
let signal = match event {
Event::KeyEvent(_) => match self.view {
crate::app::ViewState::InstalledPackages => {
self.installed_package_screen.update(&event, &self.portage)
}
ViewState::AvailablePackages => {
self.available_package_screen.update(&event, &self.portage)
}
ViewState::Dashboard => self.dashboard_screen.update(&event, &self.portage),
},
Event::LoadStateUpdate(_) => {
self.installed_package_screen.update(&event, &self.portage);
self.available_package_screen.update(&event, &self.portage);
self.dashboard_screen.update(&event, &self.portage);
None
}
};
if let Some(signal) = signal {
match signal {
Signal::Quit => return Ok(true),
Signal::CycleTab => self.cycle_current_tab(),
}
}
Ok(false)
}
pub fn poll_available_packages(&mut self) -> Option<Event> {
if let Some(loader) = &self.available_loader {
if let Some(msg) = loader.try_recv() {
match msg {
crate::background_loader::LoaderMessage::Loading => {
self.loading_state = LoadingState::Loading;
}
crate::background_loader::LoaderMessage::Complete(packages) => {
self.portage.available = packages;
self.loading_state = LoadingState::Complete;
self.available_loader = None;
}
crate::background_loader::LoaderMessage::Error(e) => {
self.loading_error = Some(e);
self.loading_state = LoadingState::Error;
self.available_loader = None;
}
}
return Some(Event::LoadStateUpdate(self.loading_state));
}
}
None
}
pub fn start_available_packages_load(&mut self) {
self.available_loader = Some(PackageLoader::spawn());
self.loading_state = LoadingState::Loading;
}
pub fn cycle_current_tab(&mut self) {
match self.view {
ViewState::Dashboard => self.view = ViewState::InstalledPackages,
ViewState::InstalledPackages => self.view = ViewState::AvailablePackages,
ViewState::AvailablePackages => self.view = ViewState::Dashboard,
}
}
}
|
