318 lines
10 KiB
Rust
318 lines
10 KiB
Rust
use std::fmt::Write;
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use std::fs::File;
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use std::io::Read;
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use std::net::SocketAddr;
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use std::thread;
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use std::{collections::HashMap, env};
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use arrayvec::ArrayString;
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use futures_util::stream::StreamExt;
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use irc::client::prelude::Config;
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use irc::client::Client;
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use irc::proto::{ChannelExt, Command, Prefix};
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use rspotify::Credentials;
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use serde::Deserialize;
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use tokio::select;
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use tokio::sync::mpsc::{channel, Receiver, Sender};
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use tracing_log::LogTracer;
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use tracing_subscriber::EnvFilter;
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use crate::bots::{leek, misc, sed, title};
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use crate::database::{DbExecutor, ExecutorConnection};
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mod bots;
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mod database;
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mod web_service;
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// this will be displayed when the help command is used
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const HELP: &[&str] = &[
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concat!("=- \x1d\x02Ü\x02berbot\x0f ", env!("CARGO_PKG_VERSION"), " -="),
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" * waifu <category>",
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" * owo/mock/leet [user]",
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" * ev <math expression>",
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" - This bot also provides titles of URLs and details for Spotify URIs/links. It can also resolve sed expressions."
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];
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#[cfg(unix)]
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async fn terminate_signal() {
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use tokio::signal::unix::{signal, SignalKind};
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let mut sigterm = signal(SignalKind::terminate()).unwrap();
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let mut sigint = signal(SignalKind::interrupt()).unwrap();
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tracing::debug!("Installed ctrl+c handler");
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select! {
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_ = sigterm.recv() => return,
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_ = sigint.recv() => return
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}
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}
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#[cfg(windows)]
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async fn terminate_signal() {
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use tokio::signal::windows::ctrl_c;
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let mut ctrlc = ctrl_c().unwrap();
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tracing::debug!("Installed ctrl+c handler");
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let _ = ctrlc.recv().await;
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}
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pub struct AppState {
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prefix: String,
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client: Client,
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last_msgs: HashMap<String, String>,
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last_eval: HashMap<String, f64>,
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titlebot: title::Titlebot,
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db: ExecutorConnection,
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git_channel: String,
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}
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#[derive(Deserialize)]
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struct ClientConf {
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channels: Vec<String>,
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host: String,
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tls: bool,
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mode: Option<String>,
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nickname: Option<String>,
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port: u16,
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username: String,
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spotify_client_id: String,
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spotify_client_secret: String,
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prefix: String,
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db_path: Option<String>,
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http_listen: Option<SocketAddr>,
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git_channel: String,
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}
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#[tokio::main(flavor = "current_thread")]
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async fn main() -> anyhow::Result<()> {
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LogTracer::init()?;
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tracing_subscriber::fmt()
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.with_env_filter(EnvFilter::from_env("UBERBOT_LOG"))
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.init();
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let mut file =
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File::open(env::var("UBERBOT_CONFIG").unwrap_or_else(|_| "uberbot.toml".to_string()))?;
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let mut client_conf = String::new();
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file.read_to_string(&mut client_conf)?;
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let client_config: ClientConf = toml::from_str(&client_conf)?;
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let (db_exec, db_conn) =
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DbExecutor::create(client_config.db_path.as_deref().unwrap_or("uberbot.db3"))?;
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let exec_thread = thread::spawn(move || {
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db_exec.run();
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tracing::info!("Database executor has been shut down");
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});
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let spotify_creds = Credentials::new(
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&client_config.spotify_client_id,
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&client_config.spotify_client_secret,
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);
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let http_listen = client_config
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.http_listen
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.unwrap_or_else(|| SocketAddr::from(([127, 0, 0, 1], 5000)));
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let uber_ver = concat!("Überbot ", env!("CARGO_PKG_VERSION"));
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let irc_config = Config {
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nickname: client_config.nickname,
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username: Some(client_config.username.clone()),
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realname: Some(client_config.username),
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server: Some(client_config.host),
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port: Some(client_config.port),
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use_tls: Some(client_config.tls),
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channels: client_config.channels,
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umodes: client_config.mode,
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user_info: Some(uber_ver.into()),
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version: Some(uber_ver.into()),
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..Config::default()
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};
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let client = Client::from_config(irc_config).await?;
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client.identify()?;
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let state = AppState {
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prefix: client_config.prefix,
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client,
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last_msgs: HashMap::new(),
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last_eval: HashMap::new(),
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titlebot: title::Titlebot::create(spotify_creds).await?,
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db: db_conn,
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git_channel: client_config.git_channel,
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};
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let (git_tx, git_recv) = channel(512);
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if let Err(e) = executor(state, git_tx, git_recv, http_listen).await {
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tracing::error!("Error in message loop: {}", e);
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}
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if let Err(e) = exec_thread.join() {
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tracing::error!("Error while shutting down the database: {:?}", e);
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}
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tracing::info!("Shutting down");
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Ok(())
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}
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async fn executor(
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mut state: AppState,
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git_tx: Sender<String>,
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mut git_recv: Receiver<String>,
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http_listen: SocketAddr,
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) -> anyhow::Result<()> {
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let web_db = state.db.clone();
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select! {
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r = web_service::run(web_db, git_tx, http_listen) => r?,
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r = message_loop(&mut state) => r?,
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r = git_recv.recv() => {
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if let Some(message) = r {
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state.client.send_privmsg(&state.git_channel, &message)?;
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}
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}
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_ = terminate_signal() => {
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tracing::info!("Sending QUIT message");
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state.client.send_quit("überbot shutting down")?;
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}
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}
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Ok(())
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}
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async fn message_loop(state: &mut AppState) -> anyhow::Result<()> {
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let mut stream = state.client.stream()?;
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while let Some(message) = stream.next().await.transpose()? {
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if let Command::PRIVMSG(ref origin, content) = message.command {
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if origin.is_channel_name() {
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if let Some(author) = message.prefix.as_ref().and_then(|p| match p {
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Prefix::Nickname(name, _, _) => Some(&name[..]),
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_ => None,
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}) {
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if let Err(e) = handle_privmsg(state, author, origin, content).await {
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state
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.client
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.send_privmsg(origin, &format!("Error: {}", e))?;
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}
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} else {
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tracing::warn!("Couldn't get the author for a message");
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}
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}
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}
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}
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Ok(())
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}
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fn separate_to_space(str: &str, prefix_len: usize) -> (&str, Option<&str>) {
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if let Some(o) = str.find(' ') {
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(&str[prefix_len..o], Some(&str[o + 1..]))
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} else {
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(&str[prefix_len..], None)
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}
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}
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async fn handle_privmsg(
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state: &mut AppState,
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author: &str,
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origin: &str,
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content: String,
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) -> anyhow::Result<()> {
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if !content.starts_with(state.prefix.as_str()) {
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if let Some(titlebot_msg) = state.titlebot.resolve(&content).await? {
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state.client.send_privmsg(origin, &titlebot_msg)?;
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}
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if let Some(prev_msg) = state.last_msgs.get(author) {
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if let Some(formatted) = sed::resolve(prev_msg, &content)? {
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let mut result = ArrayString::<512>::new();
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write!(result, "<{}> {}", author, formatted)?;
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state.client.send_privmsg(origin, &result)?;
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state.last_msgs.insert(author.into(), formatted.to_string());
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return Ok(());
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}
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}
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state.last_msgs.insert(author.into(), content);
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return Ok(());
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}
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let (command, remainder) = separate_to_space(&content, state.prefix.len());
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tracing::debug!("Command received ({:?}; {:?})", command, remainder);
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match command {
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"help" => {
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for help_line in HELP {
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state.client.send_privmsg(origin, help_line)?;
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}
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}
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"waifu" => {
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let category = remainder.unwrap_or("waifu");
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let url = misc::get_waifu_pic(category).await?;
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let response = url
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.as_ref()
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.map(|v| v.as_str())
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.unwrap_or("Invalid category. Valid categories: https://waifu.pics/docs");
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state.client.send_privmsg(origin, response)?;
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}
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"mock" => {
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leek::execute_leek(
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state,
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leek::LeekCommand::Mock,
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origin,
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remainder.unwrap_or(author),
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)?;
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}
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"leet" => {
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leek::execute_leek(
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state,
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leek::LeekCommand::Leet,
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origin,
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remainder.unwrap_or(author),
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)?;
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}
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"owo" => {
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leek::execute_leek(
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state,
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leek::LeekCommand::Owo,
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origin,
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remainder.unwrap_or(author),
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)?;
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}
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"ev" => {
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let result = misc::mathbot(author.into(), remainder, &mut state.last_eval)?;
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state.client.send_privmsg(origin, &result)?;
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}
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"grab" => {
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if let Some(target) = remainder {
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if target == author {
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state
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.client
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.send_privmsg(target, "You can't grab yourself")?;
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return Ok(());
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}
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if let Some(prev_msg) = state.last_msgs.get(target) {
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if state.db.add_quote(prev_msg.clone(), target.into()).await {
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state.client.send_privmsg(target, "Quote added")?;
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} else {
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state
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.client
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.send_privmsg(target, "A database error has occurred")?;
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}
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} else {
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state
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.client
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.send_privmsg(target, "No previous messages to grab")?;
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}
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} else {
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state.client.send_privmsg(origin, "No nickname to grab")?;
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}
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}
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"quot" => {
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if let Some(quote) = state.db.get_quote(remainder.map(|v| v.to_string())).await {
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let mut resp = ArrayString::<512>::new();
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write!(resp, "\"{}\" ~{}", quote.0, quote.1)?;
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state.client.send_privmsg(origin, &resp)?;
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} else {
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state.client.send_privmsg(origin, "No quotes found")?;
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}
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}
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_ => {
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state.client.send_privmsg(origin, "Unknown command")?;
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}
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}
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Ok(())
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}
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