Add basic server

Cargo.toml

@@ -6,3 +6,8 @@ edition = "2021"
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
+clap = { version = "3.2.17", features = ["derive"] }
+log = "0.4.17"
+env_logger = "0.9.0"
+actix-web = "4.1.0"
+actix-cors = "0.6.2"

src/main.rs

@@ -1,3 +1,44 @@
-fn main() {
-    println!("Hello, world!");
+use actix_web::{App, HttpResponse, HttpServer, Responder, web};
+use clap::Parser;
+use env_logger::Env;
+
+/// Simple sea battle server
+#[derive(Parser, Debug)]
+#[clap(author, version, about, long_about = None)]
+struct Args {
+    /// The address this server will listen to
+    #[clap(short, long, value_parser, default_value = "0.0.0.0:7000")]
+    listen_address: String,
+
+    /// CORS (allowed origin) set to '*' to allow all origins
+    #[clap(short, long, value_parser)]
+    cors: Option<String>,
+}
+
+/// The default '/' route
+async fn index() -> impl Responder {
+    HttpResponse::Ok().json("Sea battle backend")
+}
+
+/// The default 404 route
+async fn not_found() -> impl Responder {
+    HttpResponse::NotFound().json("You missed your strike lol")
+}
+
+
+#[actix_web::main]
+async fn main() -> std::io::Result<()>{
+    env_logger::Builder::from_env(Env::default().default_filter_or("info")).init();
+
+    let args: Args = Args::parse();
+
+
+    HttpServer::new(|| {
+        App::new()
+            .route("/", web::get().to(index))
+            .route("{tail:.*}", web::get().to(not_found))
+    })
+        .bind(args.listen_address)?
+        .run()
+        .await
 }