Start to create WS client for cli_player

rust/sea_battle_backend/src/bot_player.rs

@@ -39,6 +39,8 @@ impl Player for BotPlayer {
         true
     }
 
+    fn opponent_connected(&self) {}
+
     fn set_other_player_name(&self, _name: &str) {}
 
     fn query_boats_layout(&self, rules: &GameRules) {

rust/sea_battle_backend/src/game.rs

@@ -14,6 +14,8 @@ pub trait Player {
 
     fn is_bot(&self) -> bool;
 
+    fn opponent_connected(&self);
+
     fn set_other_player_name(&self, name: &str);
 
     fn query_boats_layout(&self, rules: &GameRules);
@@ -240,6 +242,9 @@ where
         self.players.push(msg.0);
 
         if self.players.len() == 2 {
+            self.players[0].opponent_connected();
+            self.players[1].opponent_connected();
+
             self.query_boats_disposition();
         }
     }

rust/sea_battle_backend/src/human_player.rs

@@ -25,6 +25,10 @@ impl Player for HumanPlayer {
         false
     }
 
+    fn opponent_connected(&self) {
+        self.player.do_send(ServerMessage::OpponentConnected);
+    }
+
     fn set_other_player_name(&self, name: &str) {
         self.player.do_send(ServerMessage::SetOpponentName {
             name: name.to_string(),

rust/sea_battle_backend/src/human_player_ws.rs

@@ -47,6 +47,7 @@ pub enum ServerMessage {
     },
     InvalidInviteCode,
     WaitingForAnotherPlayer,
+    OpponentConnected,
     SetOpponentName {
         name: String,
     },

rust/sea_battle_backend/src/test/bot_client.rs

@@ -196,6 +196,9 @@ impl BotClient {
                     log::debug!("Got invalid invite code!");
                     return Ok(ClientEndResult::InvalidInviteCode);
                 }
+                ServerMessage::OpponentConnected => {
+                    log::debug!("Opponent connected");
+                }
                 ServerMessage::QueryBoatsLayout { rules } => {
                     assert_eq!(&rules, &self.requested_rules);
                     log::debug!("Server requested boats layout");

rust/sea_battle_backend/src/utils/mod.rs

@@ -1,2 +1,12 @@
+use std::error::Error;
+use std::fmt::Display;
+use std::io::ErrorKind;
+
 pub mod network_utils;
 pub mod string_utils;
+
+pub type Res<E = ()> = Result<E, Box<dyn Error>>;
+
+pub fn boxed_error<D: Display>(msg: D) -> Box<dyn Error> {
+    Box::new(std::io::Error::new(ErrorKind::Other, msg.to_string()))
+}