Build Docker image

player-server/.gitignore

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+target
+.idea

player-server/Cargo.toml

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+[package]
+name = "player-server"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+actix-files = "0.6.0"
+actix-web = "4"
+env_logger = "0.9.0"
+log = "0.4"
+clap = { version = "3.1.6", features = ["derive", "env"] }

player-server/src/main.rs

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+use std::path::Path;
+
+use actix_files::Files;
+use actix_web::{App, HttpResponse, HttpServer, middleware::Logger, web};
+use clap::Parser;
+
+/// Music web player server
+#[derive(Parser, Debug, Clone)]
+#[clap(author, version, about, long_about = None)]
+struct Args {
+    /// Listen address
+    #[clap(short, long, env, default_value = "0.0.0.0:8000")]
+    listen_address: String,
+
+    /// Path to files
+    #[clap(short, long)]
+    files_path: String,
+
+    /// Api URL
+    #[clap(long, env)]
+    api_url: String,
+
+    /// Api token
+    #[clap(long, env)]
+    api_token: String,
+}
+
+/// Serve main file, modifying api url & token values
+async fn main_js_file(data: web::Data<Args>) -> HttpResponse {
+    let path = Path::new(&data.files_path).join("main.dart.js");
+    let file = std::fs::read_to_string(path).unwrap();
+    let script = file
+        .replace("<<<API_URL>>>", &data.api_url)
+        .replace("<<<API_TOKEN>>>", &data.api_token);
+
+    HttpResponse::Ok()
+        .content_type("application/javascript")
+        .body(script)
+}
+
+#[actix_web::main]
+async fn main() -> std::io::Result<()> {
+    let args: Args = Args::parse();
+
+    env_logger::init_from_env(env_logger::Env::new().default_filter_or("info"));
+    log::info!("starting HTTP server at {}", args.listen_address);
+
+    let args_cp = args.clone();
+    HttpServer::new(move || {
+        App::new()
+            .service(web::resource("main.dart.js").to(main_js_file))
+            .service(Files::new("/", &args_cp.files_path).index_file("index.html"))
+            .wrap(Logger::default())
+            .app_data(web::Data::new(args_cp.clone()))
+    })
+        .bind(args.listen_address)?
+        .run()
+        .await
+}