Implement Channel Points Twungeon MVP

packages/ui/src/index.ts

@@ -0,0 +1,12 @@
+import type { GameSnapshot } from '../../domain/src/index.js'
+
+export function controlDisabledReason(snapshot:GameSnapshot,twitchUserId:string|null):string|null{
+  if(!twitchUserId)return 'Sign in to the Extension.'
+  const p=snapshot.players.find(x=>x.twitchUserId===twitchUserId)
+  if(!p)return 'Type !spawn in chat first.'
+  if(!p.extensionBound)return 'Extension identity is not bound.'
+  if(p.lifeState==='dead')return 'Your character is dead.'
+  if(snapshot.phase.kind!=='player')return 'Wait for Player Phase.'
+  if(p.ap===0)return 'No AP remains this phase.'
+  return null
+}