cove/src/ui/rooms.rs
Joscha 19d75a1d15 Add enum for room status
This way, it is far easier to understand what the different values mean
2022-08-21 00:35:17 +02:00

379 lines
13 KiB
Rust

use std::collections::{HashMap, HashSet};
use std::iter;
use std::sync::Arc;
use crossterm::event::KeyCode;
use crossterm::style::{ContentStyle, Stylize};
use euphoxide::api::SessionType;
use euphoxide::conn::{Joined, Status};
use parking_lot::FairMutex;
use tokio::sync::mpsc;
use toss::styled::Styled;
use toss::terminal::Terminal;
use crate::euph::EuphRoomEvent;
use crate::vault::Vault;
use super::euph::room::{EuphRoom, RoomStatus};
use super::input::{key, InputEvent, KeyBindingsList, KeyEvent};
use super::widgets::editor::EditorState;
use super::widgets::join::{HJoin, Segment, VJoin};
use super::widgets::layer::Layer;
use super::widgets::list::{List, ListState};
use super::widgets::padding::Padding;
use super::widgets::popup::Popup;
use super::widgets::text::Text;
use super::widgets::BoxedWidget;
use super::{util, UiEvent};
enum State {
ShowList,
ShowRoom(String),
Connect(EditorState),
}
pub struct Rooms {
vault: Vault,
ui_event_tx: mpsc::UnboundedSender<UiEvent>,
state: State,
list: ListState<String>,
euph_rooms: HashMap<String, EuphRoom>,
}
impl Rooms {
pub fn new(vault: Vault, ui_event_tx: mpsc::UnboundedSender<UiEvent>) -> Self {
Self {
vault,
ui_event_tx,
state: State::ShowList,
list: ListState::new(),
euph_rooms: HashMap::new(),
}
}
fn get_or_insert_room(&mut self, name: String) -> &mut EuphRoom {
self.euph_rooms
.entry(name.clone())
.or_insert_with(|| EuphRoom::new(self.vault.euph(name), self.ui_event_tx.clone()))
}
/// Remove rooms that are not running any more and can't be found in the db.
/// Insert rooms that are in the db but not yet in in the hash map.
///
/// These kinds of rooms are either
/// - failed connection attempts, or
/// - rooms that were deleted from the db.
async fn stabilize_rooms(&mut self) {
let mut rooms_set = self
.vault
.euph_rooms()
.await
.into_iter()
.collect::<HashSet<_>>();
// Prevent room that is currently being shown from being removed. This
// could otherwise happen when connecting to a room that doesn't exist.
if let State::ShowRoom(name) = &self.state {
rooms_set.insert(name.clone());
}
self.euph_rooms
.retain(|n, r| !r.stopped() || rooms_set.contains(n));
for room in rooms_set {
self.get_or_insert_room(room).retain();
}
}
pub async fn widget(&mut self) -> BoxedWidget {
match &self.state {
State::ShowRoom(_) => {}
_ => self.stabilize_rooms().await,
}
match &self.state {
State::ShowList => self.rooms_widget().await,
State::ShowRoom(name) => {
self.euph_rooms
.get_mut(name)
.expect("room exists after stabilization")
.widget()
.await
}
State::Connect(editor) => Layer::new(vec![
self.rooms_widget().await,
Self::new_room_widget(editor),
])
.into(),
}
}
fn new_room_widget(editor: &EditorState) -> BoxedWidget {
let room_style = ContentStyle::default().bold().blue();
let editor = editor.widget().highlight(|s| Styled::new(s, room_style));
Popup::new(
Padding::new(HJoin::new(vec![
Segment::new(Text::new(("&", room_style))),
Segment::new(editor).priority(0),
]))
.left(1),
)
.title("Connect to")
.inner_padding(false)
.build()
}
fn format_pbln(joined: &Joined) -> String {
let mut p = 0_usize;
let mut b = 0_usize;
let mut l = 0_usize;
let mut n = 0_usize;
for sess in iter::once(&joined.session).chain(joined.listing.values()) {
match sess.id.session_type() {
Some(SessionType::Bot) if sess.name.is_empty() => n += 1,
Some(SessionType::Bot) => b += 1,
_ if sess.name.is_empty() => l += 1,
_ => p += 1,
}
}
// There must always be either one p, b, l or n since we're including
// ourselves.
let mut result = vec![];
if p > 0 {
result.push(format!("{p}p"));
}
if b > 0 {
result.push(format!("{b}b"));
}
if l > 0 {
result.push(format!("{l}l"));
}
if n > 0 {
result.push(format!("{n}n"));
}
result.join(" ")
}
async fn format_status(room: &EuphRoom) -> Option<String> {
match room.status().await {
RoomStatus::NoRoom | RoomStatus::Stopped => None,
RoomStatus::Connecting => Some("connecting".to_string()),
RoomStatus::Connected(Status::Joining(j)) if j.bounce.is_some() => {
Some("auth required".to_string())
}
RoomStatus::Connected(Status::Joining(_)) => Some("joining".to_string()),
RoomStatus::Connected(Status::Joined(joined)) => Some(Self::format_pbln(&joined)),
}
}
async fn format_unseen_msgs(room: &EuphRoom) -> Option<String> {
let unseen = room.unseen_msgs_count().await;
if unseen == 0 {
None
} else {
Some(format!("{unseen}"))
}
}
async fn format_room_info(room: &EuphRoom) -> Styled {
let unseen_style = ContentStyle::default().bold().green();
let status = Self::format_status(room).await;
let unseen = Self::format_unseen_msgs(room).await;
match (status, unseen) {
(None, None) => Styled::default(),
(None, Some(u)) => Styled::new_plain(" (")
.then(&u, unseen_style)
.then_plain(")"),
(Some(s), None) => Styled::new_plain(" (").then_plain(&s).then_plain(")"),
(Some(s), Some(u)) => Styled::new_plain(" (")
.then_plain(&s)
.then_plain(", ")
.then(&u, unseen_style)
.then_plain(")"),
}
}
async fn render_rows(&self, list: &mut List<String>) {
if self.euph_rooms.is_empty() {
list.add_unsel(Text::new((
"Press F1 for key bindings",
ContentStyle::default().grey().italic(),
)))
}
let mut rooms = self.euph_rooms.iter().collect::<Vec<_>>();
rooms.sort_by_key(|(n, _)| *n);
for (name, room) in rooms {
let room_style = ContentStyle::default().bold().blue();
let room_sel_style = ContentStyle::default().bold().black().on_white();
let mut normal = Styled::new(format!("&{name}"), room_style);
let mut selected = Styled::new(format!("&{name}"), room_sel_style);
let info = Self::format_room_info(room).await;
normal = normal.and_then(info.clone());
selected = selected.and_then(info);
list.add_sel(name.clone(), Text::new(normal), Text::new(selected));
}
}
async fn rooms_widget(&self) -> BoxedWidget {
let heading_style = ContentStyle::default().bold();
let amount = self.euph_rooms.len();
let heading =
Text::new(Styled::new("Rooms", heading_style).then_plain(format!(" ({amount})")));
let mut list = self.list.widget().focus(true);
self.render_rows(&mut list).await;
VJoin::new(vec![Segment::new(heading), Segment::new(list).priority(0)]).into()
}
fn room_char(c: char) -> bool {
c.is_ascii_alphanumeric() || c == '_'
}
pub async fn list_key_bindings(&self, bindings: &mut KeyBindingsList) {
match &self.state {
State::ShowList => {
bindings.heading("Rooms");
bindings.binding("j/k, ↓/↑", "move cursor up/down");
bindings.binding("g, home", "move cursor to top");
bindings.binding("G, end", "move cursor to bottom");
bindings.binding("ctrl+y/e", "scroll up/down");
bindings.empty();
bindings.binding("enter", "enter selected room");
bindings.binding("c", "connect to selected room");
bindings.binding("C", "connect to new room");
bindings.binding("d", "disconnect from selected room");
bindings.binding("D", "delete room");
}
State::ShowRoom(name) => {
// Key bindings for leaving the room are a part of the room's
// list_key_bindings function since they may be shadowed by the
// nick selector or message editor.
if let Some(room) = self.euph_rooms.get(name) {
room.list_key_bindings(bindings).await;
} else {
// There should always be a room here already but I don't
// really want to panic in case it is not. If I show a
// message like this, it'll hopefully be reported if
// somebody ever encounters it.
bindings.binding_ctd("oops, this text should never be visible")
}
}
State::Connect(_) => {
bindings.heading("Rooms");
bindings.binding("esc", "abort");
bindings.binding("enter", "connect to room");
util::list_editor_key_bindings(bindings, Self::room_char, false);
}
}
}
pub async fn handle_input_event(
&mut self,
terminal: &mut Terminal,
crossterm_lock: &Arc<FairMutex<()>>,
event: &InputEvent,
) -> bool {
self.stabilize_rooms().await;
match &self.state {
State::ShowList => match event {
key!('k') | key!(Up) => self.list.move_cursor_up(),
key!('j') | key!(Down) => self.list.move_cursor_down(),
key!('g') | key!(Home) => self.list.move_cursor_to_top(),
key!('G') | key!(End) => self.list.move_cursor_to_bottom(),
key!(Ctrl + 'y') => self.list.scroll_up(1),
key!(Ctrl + 'e') => self.list.scroll_down(1),
key!(Enter) => {
if let Some(name) = self.list.cursor() {
self.state = State::ShowRoom(name);
}
}
key!('c') => {
if let Some(name) = self.list.cursor() {
if let Some(room) = self.euph_rooms.get_mut(&name) {
room.connect();
}
}
}
key!('C') => self.state = State::Connect(EditorState::new()),
key!('d') => {
if let Some(name) = self.list.cursor() {
if let Some(room) = self.euph_rooms.get_mut(&name) {
room.disconnect();
}
}
}
key!('D') => {
// TODO Check whether user wanted this via popup
if let Some(name) = self.list.cursor() {
self.euph_rooms.remove(&name);
self.vault.euph(name.clone()).delete();
}
}
_ => return false,
},
State::ShowRoom(name) => {
if let Some(room) = self.euph_rooms.get_mut(name) {
if room
.handle_input_event(terminal, crossterm_lock, event)
.await
{
return true;
}
if let key!(Esc) = event {
self.state = State::ShowList;
return true;
}
}
return false;
}
State::Connect(ed) => match event {
key!(Esc) => self.state = State::ShowList,
key!(Enter) => {
let name = ed.text();
if !name.is_empty() {
self.get_or_insert_room(name.clone()).connect();
self.state = State::ShowRoom(name);
}
}
_ => {
return util::handle_editor_input_event(
ed,
terminal,
crossterm_lock,
event,
Self::room_char,
false,
)
}
},
}
true
}
pub fn handle_euph_room_event(&mut self, name: String, event: EuphRoomEvent) -> bool {
let room_visible = if let State::ShowRoom(n) = &self.state {
*n == name
} else {
true
};
let room = self.get_or_insert_room(name);
let handled = room.handle_euph_room_event(event);
handled && room_visible
}
}