feat!: improved CLI: separated actions from backend

src/main.rs

@@ -2,12 +2,14 @@ mod proto;
 mod entities;
 mod routes;
 mod persistence;
+mod maintenance;
 
 use std::{collections::HashMap, sync::Arc};
 
 use chrono::{DateTime, Utc, Duration};
-use clap::Parser;
+use clap::{Parser, Subcommand};
 use axum::{Router, routing::{get, post}, response::IntoResponse, Json, http::StatusCode};
+use routes::register::fill_missing_skins;
 use sea_orm::{DatabaseConnection, Database};
 use tokio::sync::Mutex;
 use tracing_subscriber::filter::filter_fn;
@@ -23,29 +25,48 @@ use crate::{routes::{
 /// Reimplementation of legacy auth server for minecraft
 #[derive(Parser, Debug, Clone)]
 #[command(author, version, about, long_about = None)]
-struct ConfigArgs {
+struct CliArgs {
 	/// Connection string for database
 	database: String,
 
-	/// Address to bind web application onto
-	#[arg(short, long, default_value = "127.0.0.1:26656")]
-	bind_addr: String,
+	/// Action to run
+	#[clap(subcommand)]
+	action: CliAction,
+}
 
-	/// How long an access token stays valid, in seconds
-	#[arg(long, default_value_t = 3600)]
-	token_duration: u32,
+#[derive(Subcommand, Clone, Debug)]
+enum CliAction {
+	/// run yggdrasil backend service
+	Serve {
+		/// Address to bind web application onto
+		#[arg(short, long, default_value = "127.0.0.1:26656")]
+		bind_addr: String,
 
-	/// How long an access token is refreshable, in hours
-	#[arg(long, default_value_t = 168)]
-	token_lifetime: u32,
+		/// How long an access token stays valid, in seconds
+		#[arg(long, default_value_t = 3600)]
+		token_duration: u32,
 
-	/// Valid time for join requests, in seconds
-	#[arg(short, long, default_value_t = 10)]
-	time_window: u32,
+		/// Valid time for join requests, in seconds
+		#[arg(short, long, default_value_t = 10)]
+		time_window: u32,
+
+		/// Enable join request fallback to Microsoft
+		#[arg(long)]
+		fallback: bool,
+	},
+
+	/// remove expired tokens
+	Clean {
+		/// How long an access token is refreshable, in hours
+		#[arg(long, default_value_t = 168)]
+		token_lifetime: u32,
+	},
+
+	/// fetch missing skins
+	Skins {
+
+	}
 
-	/// Enable join request fallback to Microsoft
-	#[arg(long)]
-	fallback: bool,
 }
 
 #[derive(Clone)]
@@ -64,7 +85,7 @@ impl JoinAttempt {
 pub struct AppState {
 	store: Arc<Mutex<HashMap<Uuid, JoinAttempt>>>,
 	db: DatabaseConnection,
-	cfg: ConfigArgs,
+	cfg: CliArgs,
 	secret: String,
 }
 
@@ -76,37 +97,45 @@ async fn main() -> Result<(), Box<dyn std::error::Error>> {
 		.with(tracing_subscriber::fmt::layer())
 		.init();
 
-	let cfg = ConfigArgs::parse();
+	let cfg = CliArgs::parse();
 
 	let db = Database::connect(cfg.database.clone()).await?;
 
-	purge_expired_tokens(&db, Duration::hours(cfg.token_lifetime.into())).await?;
+	match cfg.action {
+		CliAction::Clean { token_lifetime } => {
+			purge_expired_tokens(&db, Duration::hours(token_lifetime.into())).await?;
+		},
+		CliAction::Skins {  } => {
+			fill_missing_skins(&db).await?;
+		},
+		CliAction::Serve { bind_addr, token_duration, time_window, fallback } => {
+			let secret = load_secret(&db).await?;
 
-	let secret = load_secret(&db).await?;
+			let store = Arc::new(Mutex::new(HashMap::new())); // TODO do this as an Actor
 
-	let store = Arc::new(Mutex::new(HashMap::new())); // TODO do this as an Actor
+			let addr = bind_addr.parse()?;
 
-	let addr = cfg.bind_addr.parse()?;
+			let app = Router::new()
+				// AUTH
+				.route("/auth/authenticate", post(authenticate)) //in: username, pass; out: token
+				.route("/auth/validate", post(validate)) //in: token; out: boolean valid
+				.route("/auth/refresh", post(refresh)) //in: token out: refreshed token
+				// SESSION
+				.route("/session/minecraft/join", post(join))
+				.route("/session/minecraft/hasJoined", get(has_joined_wrapper))
+				.route("/session/minecraft/profile/:user_id", get(profile))
+				// CUSTOM
+				.route("/register/unmigrated", post(register_unmigrated))
+				.fallback(fallback_route)
+				.with_state(AppState { store, db, cfg, secret });
 
-	let app = Router::new()
-		// AUTH
-		.route("/auth/authenticate", post(authenticate)) //in: username, pass; out: token
-		.route("/auth/validate", post(validate)) //in: token; out: boolean valid
-		.route("/auth/refresh", post(refresh)) //in: token out: refreshed token
-		// SESSION
-		.route("/session/minecraft/join", post(join))
-		.route("/session/minecraft/hasJoined", get(has_joined_wrapper))
-		.route("/session/minecraft/profile/:user_id", get(profile))
-		// CUSTOM
-		.route("/register/unmigrated", post(register_unmigrated))
-		.fallback(fallback_route)
-		.with_state(AppState { store, db, cfg, secret });
+			info!(target: "MAIN", "serving Yggdrasil on {}", &addr);
 
-	info!(target: "MAIN", "serving Yggdrasil on {}", &addr);
-
-	axum::Server::bind(&addr)
-		.serve(app.into_make_service())
-		.await?;
+			axum::Server::bind(&addr)
+				.serve(app.into_make_service())
+				.await?;
+		},
+	}
 
 	Ok(())
 }