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|
use crate::agenda::{self, parse_message, AgendaPoint, Emoji};
use crate::reminder::ReminderType;
use discord::{
model::{ChannelId, Event, PossibleServer, ReactionEmoji, UserId},
Discord, Error,
};
use futures::join;
use std::{
collections::HashMap,
sync::{Arc, Mutex},
};
use tokio::{
sync::{mpsc, watch},
task::{spawn, spawn_blocking},
};
const TOKEN: Option<&str> = None;
const CHANNEL: Option<ChannelId> = None;
struct Handler {
_our_id: UserId,
connection: discord::Connection,
sender: mpsc::UnboundedSender<AgendaPoint>,
client: Arc<Mutex<discord::Discord>>,
channel: Option<ChannelId>,
display_names: HashMap<UserId, String>,
}
pub async fn handle(
sender: mpsc::UnboundedSender<AgendaPoint>,
receiver: mpsc::UnboundedReceiver<AgendaPoint>,
reminder: watch::Receiver<ReminderType>,
) {
println!("Setting up Discord");
let token = std::env::var("DISCORD_API_TOKEN")
.unwrap_or_else(|_| TOKEN.expect("Missing Discord token").to_string());
let client = Discord::from_bot_token(&token);
if let Ok(client) = client {
let (connection, _) = client.connect().expect("Discord connect failed"); //TODO
let _our_id = client.get_current_user().unwrap().id;
let client = Arc::new(Mutex::new(client));
let channel = std::env::var("DISCORD_CHANNEL")
.map(|id| Some(ChannelId(id.parse::<u64>().unwrap())))
.unwrap_or(CHANNEL);
let (_, _, _) = join!(
spawn(receive_from_slack(receiver, Arc::clone(&client), channel)),
spawn(handle_reminders(reminder, Arc::clone(&client), channel)),
spawn_blocking(move || receive_events(&mut Handler {
_our_id,
connection,
sender,
client,
channel,
display_names: HashMap::new(),
})),
);
}
}
fn receive_events(handler: &mut Handler) {
loop {
match handler.connection.recv_event() {
Ok(Event::ServerCreate(server)) => {
if let PossibleServer::Online(server) = server {
if handler.channel.is_none() {
println!(
"Discord channels in {}: {:#?}",
server.name,
server
.channels
.iter()
.map(|channel| format!(
"{}: {} ({:?})",
channel.name, channel.id, channel.kind
))
.collect::<Vec<_>>()
);
}
for member in server.members {
if let Some(nick) = member.nick {
handler.display_names.insert(member.user.id, nick);
}
}
} else if let PossibleServer::Offline(server) = server {
if handler.channel.is_none() {
println!("Server {} is offline", server);
}
}
}
Ok(Event::MessageCreate(message)) => {
if let Some(channel) = handler.channel {
if channel == message.channel_id {
match parse_message(
&message.content,
if let Some(display_name) =
handler.display_names.get(&message.author.id)
{
display_name
} else {
println!("Missing display name for '{}' (see 'Discord display names' in the readme)",
message.author.name);
&message.author.name
},
|s: String| {
handler
.client
.lock()
.unwrap()
.send_message(channel, &s, "", false)
.unwrap();
},
&handler.sender,
) {
Some(Emoji::Ok) => {
handler
.client
.lock()
.unwrap()
.add_reaction(
channel,
message.id,
ReactionEmoji::Unicode("👍".to_string()),
)
.unwrap();
}
_ => {}
}
}
}
}
Ok(_) => {}
Err(Error::Closed(code, body)) => {
println!("Discord closed with code {:?}: {}", code, body);
break;
}
Err(e) => {
println!("Discord error: {:?}", e);
}
}
}
}
async fn receive_from_slack(
mut receiver: mpsc::UnboundedReceiver<AgendaPoint>,
client: Arc<Mutex<discord::Discord>>,
channel: Option<ChannelId>,
) {
if let Some(channel) = channel {
while let Some(point) = receiver.recv().await {
println!("Discord received '{}'", point);
client
.lock()
.unwrap()
.send_message(channel, &point.to_add_message(), "", false)
.unwrap();
}
}
}
async fn handle_reminders(
mut reminder: watch::Receiver<ReminderType>,
client: Arc<Mutex<discord::Discord>>,
channel: Option<ChannelId>,
) {
if let Some(channel) = channel {
while let Some(reminder) = reminder.recv().await {
match reminder {
ReminderType::OneHour => {
client
.lock()
.unwrap()
.send_message(
channel,
&format!(
"Meeting in one hour!\n{}",
agenda::read_agenda().to_string()
),
"",
false,
)
.unwrap();
}
ReminderType::Void => {}
}
}
}
}
|
