add spam badge for requests

crates/chat/src/room.rs

@@ -192,16 +192,38 @@ impl Room {
 
         let wot = WebOfTrust::global(cx).read(cx);
 
+        Self::trusted_by(&self.members, me, |key| wot.is_in_network(key))
+    }
+
+    /// Whether the room looks like spam: everyone other than the current user
+    /// is outside the web of trust
+    pub fn is_spam(&self, cx: &App) -> bool {
+        let nostr = NostrRegistry::global(cx);
+        let Some(me) = nostr.read(cx).current_user() else {
+            return false;
+        };
+
+        let wot = WebOfTrust::global(cx).read(cx);
+
+        Self::trusted_by(&self.members, me, |key| !wot.is_outside(key))
+    }
+
+    /// Whether every member other than `me` passes the check
+    fn trusted_by(
+        members: &[PublicKey],
+        me: PublicKey,
+        check: impl Fn(&PublicKey) -> bool,
+    ) -> bool {
         let mut others = false;
 
-        for key in &self.members {
+        for key in members {
             if *key == me {
                 continue;
             }
 
             others = true;
 
-            if !wot.is_in_network(key) {
+            if !check(key) {
                 return false;
             }
         }