new algorithm

src/main.rs

@@ -5,6 +5,7 @@ use axum::{
 };
 use once_cell::sync::Lazy;
 use rand::{thread_rng, Rng};
+use rand::seq::SliceRandom;
 use serde::Deserialize;
 use std::net::SocketAddr;
 use tokio::sync::Mutex;
@@ -47,18 +48,21 @@ static STATE: Lazy<Mutex<State>> = Lazy::new(Mutex::default);
 
 struct State {
     participants: Vec<String>,
+    remaining: Vec<String>,
 }
 
 fn everyone() -> Vec<String> {
-    let mut rng = thread_rng();
-    let mut e = vec!["Alice".into(), "Bob".into(), "Carol".into(), "Dave".into()];
-    return rng.shuffle(&e[..];
+    vec!["Alice".into(), "Bob".into(), "Carol".into(), "Dave".into()]
 }
 
 impl Default for State {
     fn default() -> Self {
-        Self {
-            participants: everyone(),
+        let mut p = everyone();
+        p.shuffle(&mut thread_rng());
+        info!("distribution : {:?}", p.join(" => "));
+        return Self {
+            participants: p,
+            remaining: everyone()
         }
     }
 }
@@ -71,16 +75,25 @@ struct Input {
 async fn input(Json(input): Json<Input>) -> String {
     let mut state = STATE.lock().await;
 
-    if state.participants.is_empty() {
+    if state.remaining.is_empty() {
         return "ERROR (everybody drew already)".into();
     }
+    info!("joueurs qui restent : {:?}", state.remaining.join(","));
+    match state.remaining.iter().position(|p| input.person == *p).map(|e| state.remaining.remove(e)) {
+        Some(rem) => {
             match state.participants.iter().position(|p| input.person == *p) {
                 Some(pos) => {
-            info!("joueur qui pioche : {:?}", pos);
+                    info!("joueur qui pioche : {:?}", state.participants[pos]);
                     return match state.participants.iter().nth(pos+1) {
-                Some(x) => x.to_string(),
+                        Some(x) => {
+                            info!("joueur qui suit : {:?}", x);
+                            return x.to_string();
+                        }
                         None    => return match state.participants.first() {
-                    Some(x) => x.to_string(),
+                            Some(x) => {
+                                info!("joueur qui suit : {:?}", x);
+                                return x.to_string();
+                            }
                             None    => "ERROR".to_string()
                         }
                     }
@@ -88,3 +101,6 @@ async fn input(Json(input): Json<Input>) -> String {
                 None => "ERROR".to_string()
             }
         }
+        None => "Vous avez déja pioché !".to_string()
+    }
+}