Update src/firebase.js

src/firebase.js

@@ -9,7 +9,41 @@ let profilesCache={};
 
 async function fetchIP(){try{const r=await fetch('https://api.ipify.org?format=json');if(!r.ok)throw 0;const j=await r.json();return j.ip||'';}catch{return''}}
 
-export async function initFirebase(){app=initializeApp(firebaseConfig);db=getFirestore(app);auth=getAuth(app);const ip=await fetchIP();const last=localStorage.getItem('last_ip')||'';if(ip&&ip!==last){localStorage.removeItem('local_username');localStorage.setItem('last_ip',ip);}onAuthStateChanged(auth,async u=>{if(u){userId=u.uid;ready=true;const p=await ensureProfile(userId);username=p.username;renderAuthUI(true);}else{try{await signInAnonymously(auth);}catch{userId=localStorage.getItem('local_uid')||crypto.randomUUID();localStorage.setItem('local_uid',userId);let uname=localStorage.getItem('local_username');if(!uname){uname=autoUsername();localStorage.setItem('local_username',uname);}username=uname;ready=true;renderAuthUI(false);}}});return new Promise(res=>{const t=setInterval(()=>{if(ready){clearInterval(t);res();}},50);});}
+export async function initFirebase(){
+  try{
+    app=initializeApp(firebaseConfig); db=getFirestore(app); auth=getAuth(app);
+  }catch{
+    db=undefined; auth=undefined;
+  }
+  const ip=await fetchIP(); const last=localStorage.getItem('last_ip')||'';
+  if(ip&&ip!==last){ localStorage.removeItem('local_username'); localStorage.setItem('last_ip',ip); }
+
+  let resolved=false;
+  function resolveReady(){ if(!resolved){ resolved=true; ready=true; }}
+
+  if (auth){
+    onAuthStateChanged(auth,async u=>{
+      if(u){ userId=u.uid; const p=await ensureProfile(userId); username=p.username; renderAuthUI(true); resolveReady(); }
+      else{
+        try{ await signInAnonymously(auth); }
+        catch{
+          userId=localStorage.getItem('local_uid')||crypto.randomUUID(); localStorage.setItem('local_uid',userId);
+          let uname=localStorage.getItem('local_username'); if(!uname){ uname=autoUsername(); localStorage.setItem('local_username',uname); }
+          username=uname; renderAuthUI(false); resolveReady();
+        }
+      }
+    });
+  } else {
+    userId=localStorage.getItem('local_uid')||crypto.randomUUID(); localStorage.setItem('local_uid',userId);
+    let uname=localStorage.getItem('local_username'); if(!uname){ uname=autoUsername(); localStorage.setItem('local_username',uname); }
+    username=uname; renderAuthUI(false); resolveReady();
+  }
+
+  return new Promise(res=>{
+    const start=Date.now();
+    const t=setInterval(()=>{ if(ready){ clearInterval(t); res(); } else if(Date.now()-start>2500){ resolveReady(); clearInterval(t); res(); } }, 50);
+  });
+}
 
 export function getDB(){return db;}
 export function getAuthState(){return{userId,username,ready}};