Connect staged group Nexus negotiations

tests/nexus-offer-controls.test.tsx

@@ -8,6 +8,7 @@ import { applyAction, viewGame, type Game } from '../game/engine';
 import { nexusOfferGame } from './fixture-nexus-offer';
 import { botActions } from '../game/bots';
 import { DIFFICULTIES } from '../game/bot-profiles';
+import { coalitionOf, emptyCoalitionState } from '../game/coalition-alliance';
 
 const aliases = registerHooks({
   resolve(specifier, context, next) {
@@ -26,6 +27,22 @@ function markup(g: Game, id = 'a', busy = false) {
   return renderToStaticMarkup(createElement(GameTable, { game: viewGame(g, id), busy, send: async () => {}, onExit() {} }));
 }
 
+void test('staged group mode renders its real Nexus invitation and hides conflicting pair controls', () => {
+  let game = nexusOfferGame();
+  game.coalitionState = emptyCoalitionState();
+  game = applyAction(game, 'a', {type: 'alliance', target: 'e'});
+  game = applyAction(game, 'e', {type: 'alliance', target: 'a'});
+  const pair = coalitionOf(game.players, game.coalitionState, 'a'); assert.ok(pair);
+  assert.match(markup(game, 'a'), /Invite Harkonnen observer to Atreides offerer, Emperor recipient/);
+  game = applyAction(game, 'a', {type: 'coalitionPropose', groupId: pair.id,
+    entrant: 'h', expectedRevision: game.coalitionState!.revision});
+  const html = markup(game, 'h');
+  assert.match(html, /Accept invitation/);
+  assert.match(html, /Decline and cancel invitation/);
+  assert.doesNotMatch(html, /Propose \/ accept alliance/);
+  assert.match(markup(game, 'h', true), /disabled=""[^>]*>Accept invitation/);
+});
+
 void test('live outgoing offer is named and withdrawable only by its sender, separately from an incoming invitation', () => {
   const g = applyAction(nexusOfferGame(), 'a', { type: 'alliance', target: 'e' });
   const html = markup(g);