Prototype public deal agreements

2026-10-28 00:40:59 +11:00
1 parent c3f37a574d
commit 86c51b4aa7
@@ -0,0 +1,148 @@
+import assert from 'node:assert/strict';
+import test from 'node:test';
+import { applyAction, createGame, joinGame, newPlayer, viewGame, type Action, type Game } from '../game/engine';
+import { knowledgeGame } from './truthtrance-knowledge-fixture';
+
+/** Complete a genuine Basic setup with distinct nonallied human factions. */
+function playing(withBot = false): Game {
+  let game = createGame('DEALS', newPlayer('a', 'Atreides', 'atreides'));
+  joinGame(game, newPlayer('h', 'Harkonnen', 'harkonnen'));
+  joinGame(game, newPlayer('e', 'Emperor', 'emperor'));
+  if (withBot) game = applyAction(game, 'a', { type: 'addBot', faction: 'guild', difficulty: 'Easy' });
+  for (const p of game.players.filter(player => !player.bot)) game = applyAction(game, p.id, { type: 'ready' });
+  game = applyAction(game, 'a', { type: 'start' });
+  for (const p of game.players) if (p.traitorChoices.length)
+    game = applyAction(game, p.id, { type: 'traitor', leader: p.traitorChoices[0] });
+  assert.equal(game.status, 'playing');
+  return game;
+}
+
+function reject(game: Game, actor: string, action: Action) {
+  const original = structuredClone(game);
+  assert.throws(() => applyAction(game, actor, action), `${action.type} must reject`);
+  assert.deepEqual(game, original, `${action.type} must not mutate rejected input`);
+}
+
+function offer(game: Game, from = 'a', to = 'h') {
+  const terms = 'I will not attack your forces this turn.';
+  const next = applyAction(game, from, { type: 'dealOffer', target: to, terms });
+  const deal = next.deals?.at(-1);
+  assert.ok(deal);
+  assert.equal(deal.from, from);
+  assert.equal(deal.to, to);
+  assert.equal(deal.terms, terms);
+  assert.equal(deal.turn, game.turn);
+  assert.equal(deal.status, 'offered');
+  assert.deepEqual(deal.releaseVotes, []);
+  return { game: next, deal };
+}
+
+function preservedRules(game: Game) {
+  const { players, phase, turn, active, response, decision, phaseOpening, auction, deck, discard } = game;
+  return structuredClone({ players, phase, turn, active, response, decision, phaseOpening, auction, deck, discard });
+}
+
+void test('public offer, consent and mutual release preserve the native game', () => {
+  const original = playing();
+  const baseline = preservedRules(original);
+  const offered = offer(original);
+  let game = offered.game;
+  const deal = offered.deal;
+  assert.ok(deal.id);
+  for (const player of game.players)
+    assert.deepEqual(viewGame(game, player.id).deals.find(item => item.id === deal.id), deal);
+  assert.deepEqual(preservedRules(game), baseline);
+
+  reject(game, 'a', { type: 'dealRespond', deal: deal.id, accept: true });
+  reject(game, 'e', { type: 'dealRespond', deal: deal.id, accept: true });
+  game = applyAction(game, 'h', { type: 'dealRespond', deal: deal.id, accept: true });
+  assert.equal(game.deals!.find(item => item.id === deal.id)!.status, 'active');
+  assert.deepEqual(preservedRules(game), baseline);
+  reject(game, 'a', { type: 'dealWithdraw', deal: deal.id });
+  reject(game, 'e', { type: 'dealRelease', deal: deal.id, agree: true });
+
+  game = applyAction(game, 'a', { type: 'dealRelease', deal: deal.id, agree: true });
+  let active = game.deals!.find(item => item.id === deal.id)!;
+  assert.equal(active.status, 'active');
+  assert.deepEqual(active.releaseVotes, ['a']);
+  game = applyAction(game, 'a', { type: 'dealRelease', deal: deal.id, agree: false });
+  active = game.deals!.find(item => item.id === deal.id)!;
+  assert.equal(active.status, 'active');
+  assert.deepEqual(active.releaseVotes, []);
+  game = applyAction(game, 'h', { type: 'dealRelease', deal: deal.id, agree: true });
+  assert.equal(game.deals!.find(item => item.id === deal.id)!.status, 'active');
+  game = applyAction(game, 'a', { type: 'dealRelease', deal: deal.id, agree: true });
+  assert.equal(game.deals!.find(item => item.id === deal.id)!.status, 'released');
+  assert.deepEqual(preservedRules(game), baseline);
+  reject(game, 'h', { type: 'dealRelease', deal: deal.id, agree: true });
+});
+
+void test('declined and withdrawn offers remain public without changing game pieces', () => {
+  const original = playing();
+  const baseline = preservedRules(original);
+  let { game, deal } = offer(original);
+  reject(game, 'h', { type: 'dealWithdraw', deal: deal.id });
+  game = applyAction(game, 'h', { type: 'dealRespond', deal: deal.id, accept: false });
+  assert.equal(game.deals!.find(item => item.id === deal.id)!.status, 'declined');
+  reject(game, 'h', { type: 'dealRespond', deal: deal.id, accept: true });
+  ({ game, deal } = offer(game));
+  game = applyAction(game, 'a', { type: 'dealWithdraw', deal: deal.id });
+  assert.equal(game.deals!.find(item => item.id === deal.id)!.status, 'withdrawn');
+  reject(game, 'h', { type: 'dealRespond', deal: deal.id, accept: true });
+  assert.deepEqual(preservedRules(game), baseline);
+});
+
+void test('deals reject self, ally, bot, unknown and malformed parties or packets', () => {
+  const game = playing(true);
+  const bot = game.players.find(player => player.bot)!;
+  for (const [actor, action] of [
+    ['a', { type: 'dealOffer', target: 'a', terms: 'Self' }],
+    ['a', { type: 'dealOffer', target: bot.id, terms: 'Bot' }],
+    [bot.id, { type: 'dealOffer', target: 'a', terms: 'Bot' }],
+    ['missing', { type: 'dealOffer', target: 'a', terms: 'Forged' }],
+    ['a', { type: 'dealOffer', target: 'missing', terms: 'Forged' }],
+    ['a', { type: 'dealOffer', target: 'h', terms: '' }],
+    ['a', { type: 'dealOffer', target: 'h', terms: '   ' }],
+    ['a', { type: 'dealOffer', target: 'h', terms: null }],
+    ['a', { type: 'dealOffer', target: 'h', terms: 'Terms', from: 'e' }],
+    ['h', { type: 'dealRespond', deal: 'stale', accept: true }],
+  ] as Array<[string, Action]>) reject(game, actor, action);
+
+  const allied = structuredClone(game);
+  allied.players.find(player => player.id === 'a')!.ally = 'h';
+  allied.players.find(player => player.id === 'h')!.ally = 'a';
+  reject(allied, 'a', { type: 'dealOffer', target: 'h', terms: 'Agreement' });
+  const separatelyAllied = structuredClone(game);
+  separatelyAllied.players.find(player => player.id === 'a')!.ally = 'e';
+  separatelyAllied.players.find(player => player.id === 'e')!.ally = 'a';
+  const allowed = offer(separatelyAllied, 'a', 'h');
+  assert.equal(allowed.deal.status, 'offered');
+  const proposed = offer(game);
+  const formed = structuredClone(proposed.game);
+  formed.players.find(player => player.id === 'a')!.ally = 'h';
+  formed.players.find(player => player.id === 'h')!.ally = 'a';
+  reject(formed, 'h', { type: 'dealRespond', deal: proposed.deal.id, accept: true });
+  reject(proposed.game, 'h', { type: 'dealRespond', deal: proposed.deal.id, accept: 'yes' });
+  reject(proposed.game, 'h', { type: 'dealRespond', deal: proposed.deal.id, accept: true, from: 'e' });
+  reject(proposed.game, 'a', { type: 'dealWithdraw', deal: proposed.deal.id, extra: true });
+});
+
+void test('public deal negotiation leaves a native Truthtrance priority response resumable', () => {
+  const initial = knowledgeGame();
+  const card = initial.players[0].hand.find(item => item.effect === 'truthtrance');
+  assert.ok(card);
+  const paused = applyAction(initial, 'a', { type: 'card', card: card.id });
+  assert.equal(paused.truthtrance?.stage, 'priority');
+  const original = structuredClone(paused.truthtrance);
+  const before = preservedRules(paused);
+  const proposal = offer(paused, 'b', 'f');
+  assert.deepEqual(proposal.game.truthtrance, original);
+  assert.deepEqual(preservedRules(proposal.game), before);
+  const declined = applyAction(proposal.game, 'f', { type: 'dealRespond', deal: proposal.deal.id, accept: false });
+  assert.deepEqual(declined.truthtrance, original);
+  const passer = declined.players.find(player => !declined.truthtrance!.passed.includes(player.id));
+  assert.ok(passer);
+  const resumed = applyAction(declined, passer.id, { type: 'truthPass' });
+  assert.ok(resumed.truthtrance);
+  assert.ok(resumed.truthtrance.passed.includes(passer.id));
+});