4 files changed, 104 insertions, 20 deletions

diff --git a/game_server/src/backend_connection.rs b/game_server/src/backend_connection.rs
index 9307c4a..11642f2 100644
--- a/game_server/src/backend_connection.rs
+++ b/game_server/src/backend_connection.rs
@@ -1,31 +1,68 @@
 use reqwest::{Response, Client, Url, UrlError, Error as ReqError};
+use std::sync::mpsc::{Sender, Receiver};
+use std::sync::mpsc;
+use super::gameserver::Token;
 
 pub struct BackendConnection {
     host: String,
-    client: Client,
-    last_response: Option<Result<Response, ReqError>>
+    req_sender: Sender<RequestData>,
+    res_rec: Receiver<ResponseResult>,
 }
 
+#[derive(Debug)]
+pub enum BackendError {
+    UrlError(UrlError),
+    RequestError(ReqError),
+    InvalidTokenFormat,
+    InvalidToken,
+}
+
+pub type TokenValidity = Result<(), BackendError>;
+pub type RequestData = Url;
+pub type ResponseResult = Result<Response, ReqError>;
+
 impl BackendConnection {
+    fn run_background(req_rec: Receiver<RequestData>, res_sender: Sender<ResponseResult>) {
+        let client = Client::new();
+        loop {
+            let request_data = req_rec.recv().unwrap();
+            let location = request_data;
+            let request = client.get(location);
+            let response = request.send();
+            res_sender.send(response).unwrap();
+        }
+    }
+
     pub fn new(host: &str) -> Self {
+        let (req_sender, req_rec): (Sender<RequestData>, Receiver<RequestData>)
+                                    = mpsc::channel();
+        let (res_sender, res_rec): (Sender<ResponseResult>, Receiver<ResponseResult>)
+                                    = mpsc::channel();
+        std::thread::spawn(move || Self::run_background(req_rec, res_sender));
         BackendConnection {
             host: host.to_string(),
-            client: Client::new(),
-            last_response: None
+            req_sender,
+            res_rec,
         }
     }
 
-    pub fn request(&mut self, location: &str) -> Result<(), UrlError> {
-        Ok(self.last_response =
-                Some(self.client.get(Url::parse(&format!("{}{}", self.host, location))?)
-                           .send()))
+    pub fn request(&self, location: &str) -> Result<(), UrlError> {
+        Ok(self.req_sender.send(Url::parse(&format!("{}{}", self.host, location))?).unwrap())
     }
 
-    pub fn get_response(&self) -> &Option<Result<Response, ReqError>> {
-        &self.last_response
+    pub fn get_response(&self) -> ResponseResult {
+        self.res_rec.recv().unwrap()
     }
     
     pub fn host_name<'a>(&'a self) -> &'a str {
         &self.host
     }
+
+    pub fn validate_token(&self, token: &Token) -> TokenValidity {
+        let location = format!("/api/lobby/tokens/{}", token);
+        self.request(&location).map_err(|err| BackendError::UrlError(err))?;
+        let response = self.get_response();
+        println!("backend response: {:?}", response);
+        Ok(())
+    }
 }
diff --git a/game_server/src/game_logger.rs b/game_server/src/game_logger.rs
new file mode 100644
index 0000000..e49ebe8
--- /dev/null
+++ b/game_server/src/game_logger.rs
@@ -0,0 +1,29 @@
+use colored::*;
+
+fn color_level(level: log::Level) -> colored::ColoredString {
+    let text = format!("{: <8}", level);
+    match level {
+        log::Level::Error => text.red().bold(),
+        log::Level::Warn => text.yellow(),
+        log::Level::Info => text.green(),
+        log::Level::Debug => text.cyan(),
+        log::Level::Trace => text.magenta(),
+    }
+}
+
+pub fn init_logger() {
+    fern::Dispatch::new().format(|out, message, record|{
+        out.finish(format_args!(
+                "{} {} > {}",
+                color_level(record.level()),
+                record.target(),
+                message
+                )
+            )
+        })
+        .level(log::LevelFilter::Debug)
+        .level_for("hyper", log::LevelFilter::Off)
+        .level_for("tokio-reactor", log::LevelFilter::Off)
+        .chain(std::io::stdout())
+        .apply().unwrap();
+}
diff --git a/game_server/src/gameserver.rs b/game_server/src/gameserver.rs
index 9334a27..a4b1ed5 100644
--- a/game_server/src/gameserver.rs
+++ b/game_server/src/gameserver.rs
@@ -4,14 +4,16 @@ use websocket::{OwnedMessage,
     server::{NoTlsAcceptor, InvalidConnection,
         sync::AcceptResult}};
 use std::net::{SocketAddr, ToSocketAddrs, TcpStream};
-use std::sync::mpsc;
-use std::sync::mpsc::{Sender, Receiver};
+use std::sync::{mpsc,
+                mpsc::{Sender, Receiver},
+                Arc, Mutex};
+use std::collections::HashMap;
 use super::lobby::Lobby;
 use super::backend_connection::BackendConnection;
 
 const PROTOCOL: &str = "tuesday";
 
-type Token = u32;
+pub type Token = u32;
 
 #[derive(Debug)]
 pub enum GameServerError {
@@ -24,7 +26,8 @@ pub enum GameServerError {
 pub struct GameServer {
     addr: SocketAddr,
     lobby: Lobby,
-    backend: BackendConnection,
+    backend: Arc<Mutex<BackendConnection>>,
+    clients: Arc<Mutex<HashMap<Token, GameClient>>>,
 }
 
 pub struct GameClient {
@@ -47,7 +50,7 @@ impl GameClient {
                  .recv_message()
                  .ok()?;
         if let OwnedMessage::Text(text) = message {
-            text.parse::<Token>().ok()
+            text.parse().ok()
         } else {
             None
         }
@@ -67,7 +70,8 @@ impl GameServer {
         GameServer {
             addr,
             lobby,
-            backend,
+            backend: Arc::new(Mutex::new(backend)),
+            clients: Arc::new(Mutex::new(HashMap::new())),
         }
     }
 
@@ -81,9 +85,22 @@ impl GameServer {
     }
 
     fn add_client(&self, mut client: GameClient) {
+        let clients = Arc::clone(&self.clients);
+        let backend = Arc::clone(&self.backend);
         std::thread::spawn(move || {
-            println!("Token: {:?}", client.require_token());
-            loop { std::thread::sleep(std::time::Duration::from_millis(100)); }
+            let token = client.require_token();
+            if let Some(token) = token {
+                println!("Token: {}", token);
+                let locked_backend = backend.lock().unwrap();
+                let result = locked_backend.validate_token(&token);
+                if let Err(err) = result {
+                    warn!("token {} is invalid: '{:?}'", token, err);
+                } else {
+                    clients.lock().unwrap().insert(token, client);
+                }
+            } else {
+                warn!("client sent invalid token");
+            }
         });
     }
 
diff --git a/game_server/src/main.rs b/game_server/src/main.rs
index e129283..76e7a39 100644
--- a/game_server/src/main.rs
+++ b/game_server/src/main.rs
@@ -4,13 +4,14 @@ mod lobby;
 mod gameserver;
 mod backend_connection;
 
+mod game_logger;
+
 #[macro_use] extern crate log;
-use pretty_env_logger;
 
 use backend_connection::BackendConnection;
 
 fn main() {
-    pretty_env_logger::init();
+    game_logger::init_logger();
 
     let addr = ("127.0.0.1", 5001);
     info!("create game server on {:?}", addr);