98 lines
2.4 KiB
Rust
98 lines
2.4 KiB
Rust
use std::sync::Arc;
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use async_trait::async_trait;
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use log::{info, debug};
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use serde::Deserialize;
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use serenity::{prelude::*, model::prelude::*, http::Http};
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use crate::{linkmap::Linkmap, supervisor::{Task, TaskResult, Id, Sender, Receiver}};
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use crate::supervisor::Message as BMessage;
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use super::DiscordConfig;
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#[derive(Debug, Deserialize)]
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pub struct DiscordTask {
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config: DiscordConfig,
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links: Arc<Linkmap<ChannelId>>,
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}
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#[async_trait]
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impl Task for DiscordTask {
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async fn start(&self, id: Id, tx: Sender, mut rx: Receiver) -> TaskResult {
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let handler = Handler {
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links: self.links.clone(),
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tx,
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id,
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};
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let intents = GatewayIntents::GUILD_MESSAGES | GatewayIntents::MESSAGE_CONTENT;
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debug!("{id}: building Discord client");
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let mut client = Client::builder(&self.config.token, intents)
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.event_handler(handler)
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.await?;
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let http = client.cache_and_http.http.clone();
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let bridge_handler = async move {
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loop {
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let msg = rx.recv().await?;
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handle_bridge_msg(msg, id, &self.links, http.as_ref()).await?;
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}
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};
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debug!("{id}: built client, starting");
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tokio::select! {
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result = bridge_handler => result,
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result = client.start() => result.map_err(|e| e.into()),
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}
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}
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}
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async fn handle_bridge_msg(msg: BMessage, id: Id, links: &Linkmap<ChannelId>, http: &Http) -> TaskResult {
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let content = format!("<{}> {}", msg.author, msg.content);
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for channel in links.get_channels(&msg.link) {
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if msg.origin.0 == id && msg.origin.1 == channel.to_string() {
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continue
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}
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debug!("{id}: bridging message from {:?}/{:?} to {channel:?}", msg.origin, msg.link);
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channel.say(http, &content).await?;
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}
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Ok(())
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}
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struct Handler {
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id: Id,
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links: Arc<Linkmap<ChannelId>>,
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tx: Sender,
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}
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#[async_trait]
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impl EventHandler for Handler {
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async fn message(&self, ctx: Context, msg: Message) {
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if msg.author.id == ctx.cache.current_user_id() {
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return
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}
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let Some(link) = self.links.get_link(&msg.channel_id) else { return };
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let author = msg.author.nick_in(ctx.http, msg.guild_id.expect("failed to get guild ID"))
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.await.unwrap_or(msg.author.name);
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debug!("{}: broadcasting message from {:?} to {:?}", self.id, msg.channel_id, link);
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self.tx.send(BMessage {
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origin: (self.id, msg.channel_id.to_string()),
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link: link.clone(),
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author,
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content: msg.content,
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}).expect("failed to broadcast message");
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}
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async fn ready(&self, _: Context, _: Ready) {
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info!("{}: ready", self.id);
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}
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}
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