refraction/src/main.rs

151 lines
3.7 KiB
Rust

use std::{sync::Arc, time::Duration};
use eyre::Context as _;
use log::{info, trace, warn};
use poise::{
serenity_prelude::{self as serenity, CreateAllowedMentions},
EditTracker, Framework, FrameworkOptions, PrefixFrameworkOptions,
};
use tokio::signal::ctrl_c;
#[cfg(target_family = "unix")]
use tokio::signal::unix::{signal, SignalKind};
#[cfg(target_family = "windows")]
use tokio::signal::windows::ctrl_close;
mod api;
mod commands;
mod config;
mod consts;
mod handlers;
mod storage;
mod tags;
mod utils;
use config::Config;
use storage::Storage;
type Error = Box<dyn std::error::Error + Send + Sync>;
type Context<'a> = poise::Context<'a, Data, Error>;
#[derive(Clone, Debug, Default)]
pub struct Data {
config: Config,
storage: Option<Storage>,
http_client: api::HttpClient,
octocrab: Arc<octocrab::Octocrab>,
}
async fn setup(
ctx: &serenity::Context,
_: &serenity::Ready,
framework: &Framework<Data, Error>,
) -> Result<Data, Error> {
let config = Config::new_from_env();
let storage = if let Some(url) = &config.bot.redis_url {
Some(Storage::from_url(url)?)
} else {
None
};
if let Some(storage) = storage.as_ref() {
if !storage.clone().has_connection() {
return Err(
"You specified a storage backend but there's no connection! Is it running?".into(),
);
}
trace!("Redis connection looks good!");
}
let http_client = <api::HttpClient as api::HttpClientExt>::default();
let octocrab = octocrab::instance();
let data = Data {
config,
storage,
http_client,
octocrab,
};
poise::builtins::register_globally(ctx, &framework.options().commands).await?;
info!("Registered global commands!");
Ok(data)
}
async fn handle_shutdown(shard_manager: Arc<serenity::ShardManager>, reason: &str) {
warn!("{reason}! Shutting down bot...");
shard_manager.shutdown_all().await;
println!("Everything is shutdown. Goodbye!");
}
#[tokio::main]
async fn main() -> eyre::Result<()> {
dotenvy::dotenv().ok();
color_eyre::install()?;
env_logger::init();
rustls::crypto::aws_lc_rs::default_provider()
.install_default()
.expect("Couldn't initialize crypto provider");
let token =
std::env::var("DISCORD_BOT_TOKEN").wrap_err("Couldn't find bot token in environment!")?;
let intents =
serenity::GatewayIntents::non_privileged() | serenity::GatewayIntents::MESSAGE_CONTENT;
let options = FrameworkOptions {
commands: commands::all(),
on_error: |error| Box::pin(handlers::handle_error(error)),
command_check: Some(|ctx| {
Box::pin(async move { Ok(ctx.author().id != ctx.framework().bot_id) })
}),
event_handler: |ctx, event, framework, data| {
Box::pin(handlers::handle_event(ctx, event, framework, data))
},
prefix_options: PrefixFrameworkOptions {
prefix: Some(".".into()),
edit_tracker: Some(Arc::from(EditTracker::for_timespan(Duration::from_secs(
3600,
)))),
..Default::default()
},
allowed_mentions: Some(CreateAllowedMentions::new()),
..Default::default()
};
let framework = Framework::builder()
.options(options)
.setup(|ctx, ready, framework| Box::pin(setup(ctx, ready, framework)))
.build();
let mut client = serenity::ClientBuilder::new(token, intents)
.framework(framework)
.await?;
let shard_manager = client.shard_manager.clone();
#[cfg(target_family = "unix")]
let mut sigterm = signal(SignalKind::terminate())?;
#[cfg(target_family = "windows")]
let mut sigterm = ctrl_close()?;
tokio::select! {
result = client.start() => result.map_err(eyre::Report::from),
_ = sigterm.recv() => {
handle_shutdown(shard_manager, "Received SIGTERM").await;
std::process::exit(0);
}
_ = ctrl_c() => {
handle_shutdown(shard_manager, "Interrupted").await;
std::process::exit(130);
}
}
}