6 files changed, 60 insertions, 9 deletions

diff --git a/web/play/app.js b/web/play/app.js
index 3320693..4950c5e 100644
--- a/web/play/app.js
+++ b/web/play/app.js
@@ -1 +1 @@
-"use strict";(()=>{function k(e){let n=document.getElementById(e);if(!n)throw new Error(`missing #${e}`);return n}function o(e,n,t){let s=document.createElement(e);return n&&(s.className=n),t!==void 0&&(s.textContent=t),s}function H(e){e.replaceChildren()}function Oe(e){let n=e<0,t=String(Math.abs(Math.trunc(e))),s="";for(let a=0;a<t.length;a+=1)a>0&&(t.length-a)%3===0&&(s+=" "),s+=t[a];return n?`-${s}`:s}function L(e){return e==null||Number.isNaN(e)?"— Kr":`${Oe(e)} Kr`}function me(e){return`${e<0?"-":"+"}${L(Math.abs(e))}`}function J(e,n="info"){let t=document.getElementById("toasts");if(!t||!e)return;let s=o("div",`toast ${n}`,e);for(t.append(s),window.setTimeout(()=>{s.style.opacity="0",s.style.transition="opacity 220ms ease",window.setTimeout(()=>s.remove(),240)},4200);t.children.length>4;)t.firstElementChild?.remove()}function he(e){let n=e.toLowerCase();return e.startsWith("ERROR")||n.includes("failed")||n.includes("lost")||n.includes("invalid")||n.includes("forfeit")?"bad":e.startsWith("Logged in")||e.startsWith("Account created")||n.includes("won")||n.includes("cashed")?"good":"info"}async function fe(e){let n=new TextEncoder().encode(e),t=await crypto.subtle.digest("SHA-256",n);return[...new Uint8Array(t)].map(s=>s.toString(16).padStart(2,"0")).join("")}function O(e,n=10){return e.length<=n*2?e:`${e.slice(0,n)}…${e.slice(-n)}`}function be(e){let n=Date.parse(e.includes("T")?e:e.replace(" ","T")+"Z");return Number.isNaN(n)?e:new Date(n).toLocaleString()}function ge(e){if(e==="?"||!e)return{rank:"?",suit:"",red:!1};let n=e.slice(-1);return{rank:e.slice(0,-1),suit:n==="C"?"♣":n==="D"?"♦":n==="H"?"♥":n==="S"?"♠":n,red:n==="D"||n==="H"}}var j=class{constructor(n,t){this.url=n;this.handlers=t;this.socket=null;this.stopped=!1;this.replaced=!1;this.attempts=0}connect(){if(this.stopped)return;this.clearTimer();let n;try{n=new WebSocket(this.url)}catch{this.scheduleReconnect()||this.handlers.onClosed(!1);return}this.socket=n,n.addEventListener("open",()=>{this.attempts=0,this.handlers.onOpen()}),n.addEventListener("message",t=>{let s;try{s=JSON.parse(String(t.data))}catch{return}switch(s.type){case"hello":this.handlers.onHello(s);break;case"view":this.handlers.onView(s.view);break;case"notice":this.handlers.onNotice(String(s.text??""));break;case"error":this.handlers.onError(String(s.text??""));break;case"replaced":this.replaced=!0,this.handlers.onReplaced();break;case"pong":this.handlers.onPong();break}}),n.addEventListener("close",()=>{if(this.socket===n&&(this.socket=null),this.replaced||this.stopped){this.handlers.onClosed(!1);return}let s=this.scheduleReconnect();this.handlers.onClosed(s)}),n.addEventListener("error",()=>{})}send(n){this.socket?.readyState===WebSocket.OPEN&&this.socket.send(JSON.stringify({type:"command",command:n}))}ping(){this.socket?.readyState===WebSocket.OPEN&&this.socket.send(JSON.stringify({type:"ping"}))}close(){this.stopped=!0,this.clearTimer(),this.socket?.close()}scheduleReconnect(){if(this.stopped||this.replaced||this.attempts>=6)return!1;this.attempts+=1;let n=Math.min(250*2**(this.attempts-1),4e3);return this.timer=window.setTimeout(()=>this.connect(),n),!0}clearTimer(){this.timer!==void 0&&(window.clearTimeout(this.timer),this.timer=void 0)}};function ze(e){if(e==="?"){let s=o("div","card back");return s.append(o("span","rank","?"),o("span","suit","")),s}let n=ge(e),t=o("div","card");return n.red&&t.classList.add("red"),t.append(o("span","rank",n.rank),o("span","suit",n.suit)),t}function ye(e,n,t){let s=o("div","hand");s.append(o("div","label",e));let a=o("div","cards");for(let d of n)a.append(ze(d));let r=o("div","total");return r.append(document.createTextNode("Total "),o("strong",void 0,String(t))),s.append(a,r),s}function Ve(e,n){let t=String(n?.result??""),s=Number(n?.winnings??0);switch(t){case"blackjack":return`Blackjack — won ${L(s)}`;case"win":return`You win — ${L(s)}`;case"push":return`Push — ${L(s)} returned`;case"bust":return"Bust — the bet is lost";case"lose":return"Dealer wins — the bet is lost";case"forfeit":return"Hand forfeited — the bet is lost";case"playing":return e.status==="player"?"Your move.":"Dealing…";default:return"Ready to deal."}}function ke(e,n,t,s){H(e),H(n);let a=t.hand,r=a?.phase==="player"||t.status==="player",d=a?.phase==="done"||t.status==="done",i=!a||d;if(e.append(o("h2",void 0,"Blackjack")),e.append(o("p","note","Six decks. 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Click a number, line or corner to add a chip; right-click takes one back."));let r=o("div","roulette-wrap"),d=o("canvas","roulette-canvas");if(r.append(d),t.phase==="result"&&t.number!==null&&t.number!==void 0){let l=o("div",`wheel-result ${t.color??""}`);l.append(o("div","label","Result")),l.append(o("div","num",String(t.number)));let c=Number(t.winnings??0);l.append(o("div","note",c>0?`Won ${L(c)}`:"No win")),r.append(l)}e.append(r);let m=$e(d,t),p=(l,c)=>{let h=d.getBoundingClientRect(),M=l-h.left,N=c-h.top,b=null;for(let T of m.hotspots){let C=Math.hypot(M-T.x,N-T.y);C>T.radius||(!b||T.rank<b.rank||T.rank===b.rank&&C<Math.hypot(M-b.x,N-b.y))&&(b=T)}if(b)return{x:b.x-b.radius,y:b.y-b.radius,w:b.radius*2,h:b.radius*2,target:b.target,label:"",kind:"number"};for(let T=m.zones.length-1;T>=0;T-=1){let C=m.zones[T];if(M>=C.x&&M<=C.x+C.w&&N>=C.y&&N<=C.y+C.h)return C}return null};d.addEventListener("click",l=>{if(a)return;let c=p(l.clientX,l.clientY);c&&s({PlaceBetAt:c.target})}),d.addEventListener("contextmenu",l=>{if(l.preventDefault(),a)return;let c=p(l.clientX,l.clientY);c&&s({RemoveBetAt:c.target})}),d.addEventListener("mousemove",l=>{let c=p(l.clientX,l.clientY);d.style.cursor=c&&!a?"pointer":"default"}),oe?.disconnect(),oe=new ResizeObserver(()=>{m=$e(d,t)}),oe.observe(d),n.append(o("div","label","Roulette")),n.append(o("p","note","Chips sit on the felt. 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Five paylines.");e.append(r,d);let i=o("div","reels"),m=[],p=Array.isArray(t.reels)?t.reels.join(""):String(t.reels??"");for(let c=0;c<se;c+=1){let h=o("div","reel");for(let M=0;M<re;M+=1){let N=c*re+M,b=a?F[(N*3+Math.floor(Date.now()/70))%F.length]:p.length===se*re?p[N]:p.length===se?p[c]:F[(N*5+c)%F.length],T=o("div","tile",b);T.classList.add(`sym-${b}`),a&&T.classList.add("spinning"),!a&&(t.win_cells??[]).includes(N)&&T.classList.add("win"),m.push(T),h.append(T)}i.append(h)}e.append(i);let u=o("div","win-lines");if(!a&&t.phase==="result"){let c=Number(t.winnings??0);if(c>0){let h=(t.win_lines??[]).map(M=>`${M} (${mt[M-1]??"line"})`).join("  ·  ");u.textContent=`${t.win_type==="mega"?"MEGA WIN":t.win_type==="big"?"BIG WIN":"WIN"} ${L(c)}${h?`  ·  ${h}`:""}`,u.classList.add("win-text")}else u.textContent="No win — spin again."}else a?u.textContent="Spinning…":u.textContent="Pick a bet and spin.";if(e.append(u),a){let c=0;A=window.setInterval(()=>{c+=1;for(let h=0;h<m.length;h+=1){let M=F[(h*3+c)%F.length];m[h].textContent=M,m[h].className=`tile spinning sym-${M}`}Date.now()>=K&&X&&G&&(window.clearInterval(A),A=void 0,ae(G,n,X,s))},70)}n.append(o("div","label","Slots")),n.append(o("p","note","5 reels × 3 rows, 5 paylines."));let g=o("div","row"),f=o("button","btn small","−10"),w=o("strong","mono",L(Number(t.bet??0))),y=o("button","btn small","+10");f.disabled=a,y.disabled=a,f.addEventListener("click",()=>s({AdjustBet:-10})),y.addEventListener("click",()=>s({AdjustBet:10})),g.append(f,w,y),n.append(o("div","label","Bet"),g),t.error&&n.append(o("p","error-text",String(t.error)));let v=o("p","note");if(a)v.textContent="Spinning…";else if(t.phase==="result"){let c=Number(t.winnings??0);v.textContent=c>0?`Won ${L(c)}`:"No win this spin.",c>0&&v.classList.add("win-text")}else v.textContent="Ready when you are.";n.append(v);let E=o("div","actions"),S=o("button","btn primary wide big",a?"SPINNING…":"SPIN");S.disabled=a,S.addEventListener("click",()=>{Date.now()-Pe<900||(Pe=Date.now(),ft(),s("Spin"))});let l=o("button","btn ghost wide","Leave machine");l.disabled=a,l.addEventListener("click",()=>s("Leave")),E.append(S,l),n.append(E)}var bt=k("auth-screen"),gt=k("lobby-screen"),yt=k("game-screen"),kt=k("history-screen"),Ie=k("session-bar"),Lt=k("account-name"),xt=k("account-balance"),ie=k("game-grid"),U=k("game-board"),Z=k("game-side"),wt=k("game-title"),ze=k("game-badge"),vt=k("history-body"),Tt=k("auth-form"),Ve=k("auth-user"),q=k("auth-pass"),O=k("auth-error"),P=k("auth-submit"),_e=k("tab-login"),je=k("tab-register"),J=k("reconnect-overlay"),Fe=k("reconnect-message"),Oe=k("replaced-overlay"),x=null,D=null,ue=null,_="login",le=null,Ye=0,ce=0,de=new Map([["slots",10],["roulette",10],["blackjack",10],["crash",10]]),Xe={slots:"Slots",roulette:"Roulette",blackjack:"Blackjack",crash:"Crash"},Et={slots:"Five reels, five paylines. Match symbols from the left.",roulette:"European single-zero wheel with inside and outside bets.",blackjack:"Six-deck shoe. Blackjack pays 3:2.",crash:"A rising multiplier. Cash out before it crashes."},Mt=location.pathname.includes("/play/")?location.pathname.slice(0,location.pathname.indexOf("/play/")):"",Ct=`${location.protocol==="https:"?"wss":"ws"}://${location.host}${Mt}/ws`,Q=new j(Ct,{onHello(e){Ye=e.time-Date.now(),D=e.user??null,ze.textContent=`v${e.version}`},onView(e){x=e,e.screen!=="slots"&&We(),e.screen!=="crash"&&Ce(),typeof e.balance=="number"&&(ue=e.balance),e.screen==="lobby"&&"user"in e&&(D=e.user??null,D?q.value="":ue=null),ce=0,J.hidden=!0,Ge(),D&&x.balance===null&&le!==D&&(le=D,Q.send("Info")),D||(le=null)},onNotice(e){e.startsWith("Connected to:")||e.startsWith("Fingerprint:")||e.startsWith("User:")||e.startsWith("Account:")||e.startsWith("Balance:")||(ee(e,be(e)),e.startsWith("Account created")&&(pe("login"),q.value="",Ve.focus()),P.disabled=!1,P.textContent=_==="login"?"Log in":"Create account")},onError(e){ee(e,"bad"),P.disabled=!1,P.textContent=_==="login"?"Log in":"Create account"},onReplaced(){Oe.hidden=!1},onPong(){},onOpen(){J.hidden=!0},onClosed(e){if(Oe.hidden!==!1){if(!e){Fe.textContent="The connection could not be restored. Reload the page to try again.",J.hidden=!1;return}ce+=1,Fe.textContent=ce>1?"Still trying to reach the game server…":"Trying to reach the game server…",J.hidden=!1}}});function B(e){Q.send(e)}function St(){return Date.now()+Ye}function pe(e){_=e,_e.classList.toggle("active",e==="login"),je.classList.toggle("active",e==="register"),P.textContent=e==="login"?"Log in":"Create account",q.autocomplete=e==="login"?"current-password":"new-password",O.textContent=""}function V(e){bt.hidden=e!=="auth",gt.hidden=e!=="lobby",yt.hidden=e!=="game",kt.hidden=e!=="history"}function Nt(e){xt.textContent=L(e??null)}function Ge(){if(!x)return;let e=D;if(e?(Ie.hidden=!1,Lt.textContent=String(e)):Ie.hidden=!0,Nt(ue),!e){V("auth"),O.textContent=x.login_error?String(x.login_error):"",x.screen==="lobby"&&x.connected===!1&&(O.textContent="The game server is not reachable yet. Retrying…");return}switch(x.screen){case"lobby":V("lobby"),Bt(x);break;case"history":V("history"),Ne(vt,x);break;case"slots":case"roulette":case"blackjack":case"crash":V("game"),wt.textContent=Xe[x.screen]??x.screen,ze.textContent=Ht(x),x.screen==="slots"?ae(U,Z,x,B):x.screen==="roulette"?De(U,Z,x,B):x.screen==="blackjack"?we(U,Z,x,B):Se(U,Z,x,B,{now:St});break;default:V("auth")}}function Ht(e){return e.screen==="crash"||e.screen==="blackjack"?String(e.status??""):e.screen==="slots"||e.screen==="roulette"?String(e.phase??""):""}function Bt(e){ie.replaceChildren();let n=e.games??[];for(let[t,s]of n){let a=o("article",`game-card ${t}`);a.append(o("h3",void 0,s||Xe[t]||t)),a.append(o("p",void 0,Et[t]??"Play a round."));let r=o("div","row wrap"),d=o("label","field");d.style.flex="1",d.append(o("span","label","Bet"));let i=o("input","input bet-input");i.type="number",i.min="1",i.step="10",i.value=String(de.get(t)??10),i.addEventListener("change",()=>{let p=Math.max(1,Math.floor(Number(i.value)||1));i.value=String(p),de.set(t,p)}),d.append(i);let m=o("button","btn primary",t==="roulette"?"Open table":"Play");m.addEventListener("click",()=>{let p=Math.max(1,Math.floor(Number(i.value)||1));de.set(t,p),B({Play:{game:t,bet:p}})}),r.append(d,m),a.append(r),ie.append(a)}n.length===0&&ie.append(o("p","muted","The server did not advertise any games."))}_e.addEventListener("click",()=>pe("login"));je.addEventListener("click",()=>pe("register"));Tt.addEventListener("submit",async e=>{e.preventDefault();let n=Ve.value.trim(),t=q.value;if(!n||!t){O.textContent="Enter a username and a password.";return}P.disabled=!0,P.textContent="Working…",O.textContent="";try{let s=await ge(t);B(_==="login"?{Login:{user:n,credential:s}}:{Register:{user:n,credential:s}})}catch{O.textContent="This browser cannot hash the password (needs a secure context).",P.disabled=!1,P.textContent=_==="login"?"Log in":"Create account"}});k("logout").addEventListener("click",()=>B("Logout"));k("show-history").addEventListener("click",()=>B({History:{limit:50}}));k("refresh-lobby").addEventListener("click",()=>B("Info"));k("history-back").addEventListener("click",()=>B("ShowLobby"));k("leave-game").addEventListener("click",()=>{!x||(x.screen==="blackjack"&&x.status==="player"||x.screen==="crash"&&x.status==="running")&&!window.confirm("Leaving now forfeits the active bet. Continue?")||B("Leave")});k("reload-replaced").addEventListener("click",()=>location.reload());k("reload-reconnect").addEventListener("click",()=>location.reload());window.addEventListener("resize",()=>{window.clearTimeout(window.__resizeTimer),window.__resizeTimer=window.setTimeout(()=>{x&&Ge()},140)});window.setInterval(()=>{D&&Q.ping()},25e3);Q.connect();})();
diff --git a/web/play/src/blackjack.ts b/web/play/src/blackjack.ts
index 3537f45..49d46fa 100644
--- a/web/play/src/blackjack.ts
+++ b/web/play/src/blackjack.ts
@@ -1,6 +1,14 @@
 import type { View } from "./types";
 import { cardFace, clear, money, node } from "./dom";
 
+let lastAction = 0;
+
+function actionAllowed(): boolean {
+  if (Date.now() - lastAction < 400) return false;
+  lastAction = Date.now();
+  return true;
+}
+
 function cardElement(card: string): HTMLElement {
   if (card === "?") {
     const back = node("div", "card back");
@@ -124,6 +132,7 @@ export function renderBlackjack(
           ? node("button", "btn primary", label)
           : node("button", "btn", label);
       button.addEventListener("click", () => {
+        if (!actionAllowed()) return;
         if (action === "hit") send("Hit");
         else if (action === "stand") send("Stand");
         else send("Double");
@@ -133,12 +142,15 @@ export function renderBlackjack(
     actions.append(actionsRow);
     const forfeit = node("button", "btn danger wide", "Forfeit hand");
     forfeit.addEventListener("click", () => {
+      if (!actionAllowed()) return;
       if (window.confirm("Forfeit this hand? The reserved bet is lost.")) send("Forfeit");
     });
     actions.append(forfeit);
   } else if (canDeal) {
     const deal = node("button", "btn primary wide big", "DEAL");
-    deal.addEventListener("click", () => send("Deal"));
+    deal.addEventListener("click", () => {
+      if (actionAllowed()) send("Deal");
+    });
     actions.append(deal);
   }
 
diff --git a/web/play/src/crash.ts b/web/play/src/crash.ts
index 6f3c8dd..a683dcd 100644
--- a/web/play/src/crash.ts
+++ b/web/play/src/crash.ts
@@ -31,6 +31,7 @@ let sendCommand: ((command: unknown) => void) | null = null;
 let frameHandle: number | undefined;
 let verifyToken = 0;
 let lastStatus = "";
+let lastAction = 0;
 
 function build(
   board: HTMLElement,
@@ -88,6 +89,8 @@ function build(
   const primary = node("button", "btn primary wide big", "START") as HTMLButtonElement;
   const leave = node("button", "btn ghost wide", "Leave table") as HTMLButtonElement;
   primary.addEventListener("click", () => {
+    if (Date.now() - lastAction < 500) return;
+    lastAction = Date.now();
     if (current?.status === "running") sendCommand?.("CashOut");
     else sendCommand?.("Start");
   });
@@ -118,6 +121,15 @@ function build(
   };
 }
 
+/// Stop the chart loop when another screen takes over.
+export function stopCrashAnimation(): void {
+  if (frameHandle !== undefined) {
+    cancelAnimationFrame(frameHandle);
+    frameHandle = undefined;
+  }
+  current = null;
+}
+
 export function renderCrash(
   board: HTMLElement,
   side: HTMLElement,
@@ -125,7 +137,7 @@ export function renderCrash(
   send: (command: unknown) => void,
   now: Clock,
 ): void {
-  if (!parts || parts.board !== board) {
+  if (!parts || parts.board !== board || !parts.canvas.isConnected) {
     parts = build(board, side, send, now);
     lastStatus = "";
   }
diff --git a/web/play/src/main.ts b/web/play/src/main.ts
index fd55250..f051429 100644
--- a/web/play/src/main.ts
+++ b/web/play/src/main.ts
@@ -1,10 +1,10 @@
 import { byId, money, node, sha256Hex, toast, toneFor } from "./dom";
 import { Gateway } from "./net";
 import { renderBlackjack } from "./blackjack";
-import { renderCrash } from "./crash";
+import { renderCrash, stopCrashAnimation } from "./crash";
 import { renderHistory } from "./history";
 import { renderRoulette } from "./roulette";
-import { renderSlots } from "./slots";
+import { renderSlots, stopSlotsAnimation } from "./slots";
 import type { View } from "./types";
 
 const authScreen = byId("auth-screen");
@@ -72,6 +72,8 @@ const gateway = new Gateway(wsUrl, {
   },
   onView(next) {
     view = next;
+    if (next.screen !== "slots") stopSlotsAnimation();
+    if (next.screen !== "crash") stopCrashAnimation();
     // Game and history views carry no account field; the lobby is the source
     // of truth for who is signed in. A null lobby user is a logout or an
     // expired session.
diff --git a/web/play/src/roulette.ts b/web/play/src/roulette.ts
index cbb7c6e..a42686a 100644
--- a/web/play/src/roulette.ts
+++ b/web/play/src/roulette.ts
@@ -20,6 +20,9 @@ type Hotspot = {
   rank: number;
 };
 
+let observer: ResizeObserver | null = null;
+let lastSpin = 0;
+
 type Layout = {
   width: number;
   height: number;
@@ -413,9 +416,11 @@ export function renderRoulette(
     const zone = hit(event.clientX, event.clientY);
     canvas.style.cursor = zone && !spinning ? "pointer" : "default";
   });
-  new ResizeObserver(() => {
+  observer?.disconnect();
+  observer = new ResizeObserver(() => {
     current = draw(canvas, view);
-  }).observe(canvas);
+  });
+  observer.observe(canvas);
 
   // Sidebar
   side.append(node("div", "label", "Roulette"));
@@ -459,7 +464,11 @@ export function renderRoulette(
   const actions = node("div", "actions");
   const spin = node("button", "btn primary wide big", spinning ? "SPINNING…" : "SPIN WHEEL");
   spin.disabled = spinning || total === 0;
-  spin.addEventListener("click", () => send("Spin"));
+  spin.addEventListener("click", () => {
+    if (Date.now() - lastSpin < 600) return;
+    lastSpin = Date.now();
+    send("Spin");
+  });
   const clearBets = node("button", "btn wide", "Clear bets");
   clearBets.disabled = spinning || total === 0;
   clearBets.addEventListener("click", () => send("ClearBets"));
diff --git a/web/play/src/slots.ts b/web/play/src/slots.ts
index dba1e25..7c4677d 100644
--- a/web/play/src/slots.ts
+++ b/web/play/src/slots.ts
@@ -7,6 +7,7 @@ const SYMBOLS = "CLOGDS";
 const LINE_NAMES = ["top", "middle", "bottom", "V", "inverted V"];
 
 let spinUntil = 0;
+let lastSpin = 0;
 let animation: number | undefined;
 let latest: View | null = null;
 let latestBoard: HTMLElement | null = null;
@@ -15,6 +16,17 @@ export function requestSlotsSpin(): void {
   spinUntil = Date.now() + 900;
 }
 
+/// Stop the reel animation when another screen takes over.
+export function stopSlotsAnimation(): void {
+  if (animation !== undefined) {
+    window.clearInterval(animation);
+    animation = undefined;
+  }
+  latest = null;
+  latestBoard = null;
+  spinUntil = 0;
+}
+
 function spinning(view: View): boolean {
   return view.phase === "spinning" || Date.now() < spinUntil;
 }
@@ -42,7 +54,9 @@ export function renderSlots(
 
   const reels = node("div", "reels");
   const tiles: HTMLElement[] = [];
-  const flat = String(view.reels ?? "");
+  const flat = Array.isArray(view.reels)
+    ? view.reels.join("")
+    : String(view.reels ?? "");
   for (let column = 0; column < REELS; column += 1) {
     const reel = node("div", "reel");
     for (let row = 0; row < ROWS; row += 1) {
@@ -133,6 +147,8 @@ export function renderSlots(
   const spin = node("button", "btn primary wide big", active ? "SPINNING…" : "SPIN");
   spin.disabled = active;
   spin.addEventListener("click", () => {
+    if (Date.now() - lastSpin < 900) return;
+    lastSpin = Date.now();
     requestSlotsSpin();
     send("Spin");
   });