From c7bc91ecd6c32afab52c5e45b569e3945bdd1056 Mon Sep 17 00:00:00 2001
From: natrixaeria <janng@gmx.de>
Date: Mon, 20 May 2019 18:27:26 +0200
Subject: Broadcast all text packets around clients

---
 game_server/src/backend_connection.rs |  7 +++++--
 game_server/src/group.rs              |  1 -
 game_server/src/main.rs               |  2 +-
 game_server/src/scribble_group.rs     | 29 +++++++++++++++++++++--------
 game_server/src/server.rs             | 15 ++++++++++++---
 game_server/src/ws_test.html          |  7 ++++++-
 6 files changed, 45 insertions(+), 16 deletions(-)

diff --git a/game_server/src/backend_connection.rs b/game_server/src/backend_connection.rs
index e1844ee..d32c58e 100644
--- a/game_server/src/backend_connection.rs
+++ b/game_server/src/backend_connection.rs
@@ -8,6 +8,7 @@ pub struct BackendConnection {
     host: String,
     req_sender: Sender<RequestData>,
     res_rec: Receiver<ResponseResult>,
+    max_uid: u32,
 }
 
 #[derive(Debug)]
@@ -52,6 +53,7 @@ impl BackendConnection {
             host: host.to_string(),
             req_sender,
             res_rec,
+            max_uid: 420,
         }
     }
 
@@ -63,18 +65,19 @@ impl BackendConnection {
         self.res_rec.recv().unwrap()
     }
     
-    pub fn validate_token(&self, token: &Token) -> TokenValidity {
+    pub fn validate_token(&mut 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().map_err(|err| BackendError::RequestError(err))?;
         if response.status().is_success() {
             // zu Testzwecken werden noch keine JSON-Daten deserialisiert
             // Dennis Server gibt ja noch nix zurück
+            self.max_uid += 1;
             Ok(TokenResponse {
                 group_id: 12,
                 group_type: "scribble".to_string(),
                 group_name: "Scribble".to_string(),
-                user_id: 420
+                user_id: self.max_uid - 1,
             })
         } else if response.status() == reqwest::StatusCode::NOT_FOUND {
             Err(BackendError::InvalidToken)
diff --git a/game_server/src/group.rs b/game_server/src/group.rs
index 6356a14..fcda12a 100644
--- a/game_server/src/group.rs
+++ b/game_server/src/group.rs
@@ -10,5 +10,4 @@ pub trait Group {
     fn run(&mut self);
 
     fn add_client(&mut self, id: UserId, client: GameClient);
-    fn get_client(&self, client_id: UserId) -> Option<&GameClient>;
 }
diff --git a/game_server/src/main.rs b/game_server/src/main.rs
index 8ff8f97..ab73a97 100644
--- a/game_server/src/main.rs
+++ b/game_server/src/main.rs
@@ -11,7 +11,7 @@ mod game_logger;
 fn main() {
     game_logger::init_logger();
 
-    let addr = ("127.0.0.1", 5001);
+    let addr = ("0.0.0.0", 5001);
     info!("create game server on {:?}", addr);
     let mut gameserver = server::GameServer::new(addr);
     gameserver.run().unwrap();
diff --git a/game_server/src/scribble_group.rs b/game_server/src/scribble_group.rs
index c240264..e68c6df 100644
--- a/game_server/src/scribble_group.rs
+++ b/game_server/src/scribble_group.rs
@@ -1,11 +1,13 @@
 use super::group::{Group, GroupId};
-use super::server::{UserId, GameClient};
+use super::server::{UserId, GameClient,
+                    ClientSender, ClientReceiver};
 use std::collections::HashMap;
+use std::sync::{Arc, Mutex};
 
 pub struct ScribbleGroup {
     id: GroupId,
     name: String,
-    clients: HashMap<UserId, GameClient>
+    senders: Arc<Mutex<HashMap<UserId, ClientSender>>>
 }
 
 impl Group for ScribbleGroup {
@@ -27,16 +29,27 @@ impl Group for ScribbleGroup {
 
     fn add_client(&mut self, id: UserId, client: GameClient) {
         debug!("user {} joined the group {}:'{}'", id, self.id, self.name);
-        self.clients.insert(id, client);
-    }
-
-    fn get_client(&self, client_id: UserId) -> Option<&GameClient> {
-        self.clients.get(&client_id)
+        let (sen, mut rec) = client.split();
+        self.senders.lock().unwrap().insert(id, sen);
+        let senders_mutex = self.senders.clone();
+        let self_uid = id;
+        std::thread::spawn(move || {
+            loop {
+                let message = rec.recv_message().unwrap();
+                info!("got message: '{:?}'", message);
+                let mut senders = senders_mutex.lock().unwrap();
+                for (uid, sender) in senders.iter_mut() {
+                    if self_uid != *uid {
+                        sender.send_message(&message);
+                    }
+                }
+            }
+        });
     }
 }
 
 impl ScribbleGroup {
     pub fn new(id: GroupId, name: String) -> Self {
-        Self { id, name, clients: HashMap::new() }
+        Self { id, name, senders: Arc::new(Mutex::new(HashMap::new())) }
     }
 }
diff --git a/game_server/src/server.rs b/game_server/src/server.rs
index c87594b..6294e2c 100644
--- a/game_server/src/server.rs
+++ b/game_server/src/server.rs
@@ -1,16 +1,20 @@
 use websocket::{OwnedMessage,
+    stream::sync::Splittable,
     sync::Server,
     client::sync::Client,
     server::{NoTlsAcceptor,
-        sync::AcceptResult}};
+        sync::AcceptResult},
+    receiver, sender};
 use std::net::{SocketAddr, ToSocketAddrs, TcpStream};
 use std::sync::{mpsc,
-                mpsc::{Sender, Receiver},
-                Arc, Mutex};
+                mpsc::{Sender, Receiver}};
 use std::collections::HashMap;
 use super::lobby::Lobby;
 use super::backend_connection::BackendConnection;
 
+pub type ClientReceiver = receiver::Reader<<TcpStream as Splittable>::Reader>;
+pub type ClientSender = sender::Writer<<TcpStream as Splittable>::Writer>;
+
 const PROTOCOL: &str = "tuesday";
 
 pub type Token = u32;
@@ -59,6 +63,11 @@ impl GameClient {
     fn host_name(&self) -> SocketAddr {
         self.addr
     }
+
+    pub fn split(self) -> (ClientSender, ClientReceiver) {
+        let (mut rec, mut sen) = self.client.split().unwrap();
+        (sen, rec)
+    }
 }
 
 type ClientConnection = Result<GameClient, GameServerError>;
diff --git a/game_server/src/ws_test.html b/game_server/src/ws_test.html
index f802327..ee60b65 100644
--- a/game_server/src/ws_test.html
+++ b/game_server/src/ws_test.html
@@ -12,6 +12,7 @@
         <div id='cons'>connected</div><br>
         <button onclick='test_connection()'>Launch</button><br>
         <span>Server address: </span><input id='addr'></input>
+        <span>Message</span><input id='msg'></input><button onclick='send_text()'>Send</button>
         <div id='chat' style='background: rgb(20, 20, 20); padding-left: 20px; margin: 40px' />
     </body>
     <script>
@@ -22,7 +23,7 @@ function get_addr() {
 function test_connection() {
     let a = 'ws://' + get_addr();
     add_text('create a new connection at "' + a + '"');
-    const ws = new WebSocket(a, 'tuesday');
+    ws = new WebSocket(a, 'tuesday');
     ws.addEventListener('open', function (event) {
         add_text('connection established');
         toggle_connected(true);
@@ -42,6 +43,10 @@ function test_connection() {
     });
 }
 
+function send_text() {
+    ws.send(document.getElementById('msg').value);
+}
+
 function add_text(text, color='white') {
     let c = document.getElementById('chat');
     let n = document.createElement('span');
-- 
cgit v1.2.3-54-g00ecf