Limit player name length

rust/cli_player/src/main.rs

@@ -20,6 +20,7 @@ use cli_player::ui_screens::input_screen::InputScreen;
 use cli_player::ui_screens::popup_screen::PopupScreen;
 use cli_player::ui_screens::select_play_mode_screen::{SelectPlayModeResult, SelectPlayModeScreen};
 use cli_player::ui_screens::*;
+use sea_battle_backend::consts::{MAX_PLAYER_NAME_LENGTH, MIN_PLAYER_NAME_LENGTH};
 use sea_battle_backend::data::GameRules;
 use sea_battle_backend::utils::Res;
 
@@ -72,12 +73,17 @@ async fn run_dev<B: Backend>(
 
 /// Ask the user to specify its username
 fn query_username<B: Backend>(terminal: &mut Terminal<B>) -> Res<String> {
-    let hostname = hostname::get()?.to_string_lossy().to_string();
+    let mut hostname = hostname::get()?.to_string_lossy().to_string();
+    if hostname.len() > MAX_PLAYER_NAME_LENGTH {
+        hostname = hostname[0..MAX_PLAYER_NAME_LENGTH].to_string();
+    }
 
     let res =
         InputScreen::new("Please specify the name to which other players should identify you:")
             .set_title("Player name")
             .set_value(&hostname)
+            .set_min_length(MIN_PLAYER_NAME_LENGTH)
+            .set_max_length(MAX_PLAYER_NAME_LENGTH)
             .show(terminal)?;
 
     Ok(res.value().unwrap_or(hostname))

rust/cli_player/src/ui_screens/input_screen.rs

@@ -55,6 +55,16 @@ impl<'a> InputScreen<'a> {
         self
     }
 
+    pub fn set_min_length(mut self, v: usize) -> Self {
+        self.min_len = v;
+        self
+    }
+
+    pub fn set_max_length(mut self, v: usize) -> Self {
+        self.max_len = v;
+        self
+    }
+
     /// Get error contained in input
     fn error(&self) -> Option<&'static str> {
         if self.value.len() > self.max_len {