Dune/tests/semuta-independent-native-retention.test.ts

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 { botActions } from '../game/bots';
import { DIFFICULTIES } from '../game/bot-profiles';
import { SEMUTA_DRUG_ID } from '../game/semuta-drug';
import type { Card } from '../game/cards';
import { resolveSemutaMoritaniBattle, finishSemutaMoritaniWinner,
  chooseSemutaMoritaniRetention, allowSemutaMoritaniResponse,
  passSemutaMoritaniDiscard, semutaMoritaniInventory as inventory,
  semutaMoritaniResources as resources, semutaMoritaniPlayer as seat,
  type SemutaMoritaniFixture } from './fixture-semuta-moritani-retention';

const act = (game: Game, id: string, action: Action) => applyAction(game, id, action);

/** Actual public selected-deck setup with independent Ecaz cards. The later
 * reciprocal alliance, held physical cards and conserved battle position are
 * deliberately staged; battle plans, retention and Semuta use real actions. */
function fixture(): SemutaMoritaniFixture & { hero: string } {
  let game = createGame('SEMUTANATIVERETENTION', newPlayer('r','Richese','richese'), false, ['choam','ecaz']);
  joinGame(game,newPlayer('m','Moritani','moritani'));
  joinGame(game,newPlayer('w','Emperor','emperor'));
  joinGame(game,newPlayer('l','Guild','guild'));
  game = act(game,'r',{type:'moduleOption',module:'ecazTreachery',enabled:true});
  for (const player of game.players) game = act(game,player.id,{type:'ready'});
  game = act(game,'r',{type:'start'});
  assert.equal(game.status,'setup');
  assert.equal(game.semutaRecruitsPreview,true);
  for (let count=0;game.status === 'setup' && count<160;count++) {
    let next: {actor:string;action:Action}|undefined;
    for (const player of game.players) {
      const view = viewGame(game,player.id);
      view.players.find(candidate => candidate.id === player.id)!.bot = 'Medium';
      const action = botActions(view)[0];
      if (action) {next = {actor:player.id,action};break;}
    }
    assert.ok(next, 'Original setup must offer a legal decision.');
    game = act(game,next.actor,next.action);
  }
  assert.equal(game.status,'playing');
  assert.equal(game.ecazTreachery,true);
  assert.equal(game.semutaPreview,undefined);
  game.deck.push(...game.players.flatMap(player => player.hand));
  for (const player of game.players) player.hand = [];
  const hold = (owner:string,predicate:(card:Card)=>boolean) => {
    for (const zone of [game.deck,game.discard,game.richeseCache!]) {
      const index = zone.findIndex(predicate);
      if (index >= 0) {const [card] = zone.splice(index,1);seat(game,owner).hand.push(card);return card.id;}
    }
    throw Error('The original physical card is unavailable.');
  };
  const semuta = hold('r',card=>card.id === SEMUTA_DRUG_ID);
  const weapon = hold('l',card=>card.kind === 'projectile');
  const defense = hold('l',card=>card.kind === 'snooper');
  const unrelated = hold('l',card=>card.kind === 'worthless');
  const hero = hold('l',card=>card.kind === 'hero');
  const winnerWeapon = hold('w',card=>card.kind === 'projectile');
  const winnerDefense = hold('w',card=>card.kind === 'shield');
  for (const player of game.players) {
    player.reserves += Object.values(player.forces).reduce((sum,count)=>sum+count,0);
    player.forces = {};
    assert.equal(player.tanks,0);assert.equal(player.reserves,20);
  }
  for (const id of ['w','l']) {seat(game,id).reserves-=5;seat(game,id).forces['arrakeen:10']=5;}
  seat(game,'m').ally='l';seat(game,'l').ally='m';
  Object.assign(game,{turn:2,phase:6,storm:18,active:'w',order:['w','l','m','r'],
    ready:[],response:null,decision:null,phaseOpening:null,stormPending:null,movementRemaining:[]});
  const winnerLeader = seat(game,'w').leaders.reduce((best,leader)=>leader.strength > best.strength ? leader : best).id;
  return {game,semuta,weapon,defense,unrelated,hero,winnerWeapon,winnerDefense,winnerHero:null,karama:null,
    cards:inventory(game),winnerLeader,loserLeader:hero,loserStrength:0};
}

for (const initialClaim of [false,true]) for (const finalClaim of [false,true]) {
  if (initialClaim && finalClaim) continue; // Claiming spends the only Semuta.
  void test(`Basic independent cards: Moritani retention ${initialClaim ? 'claims' : 'passes'} initial Hero and ${finalClaim ? 'claims' : 'passes'} later discard`,()=>{
    const f = fixture();
    let game = resolveSemutaMoritaniBattle(f);
    const initial = game.pendingTreacheryDiscard;assert.ok(initial?.reaction);
    assert.equal(initial.batch.cause,'battle:mandatory');
    assert.deepEqual(initial.batch.entries.map(entry=>entry.card.id),[f.hero]);
    assert.deepEqual(game.moritaniRetention?.eligible,[f.weapon,f.defense]);
    const committed = structuredClone(resources(game));
    if (!initialClaim) for (const difficulty of DIFFICULTIES) {
      const view = viewGame(game,'r');view.players.find(player=>player.id === 'r')!.bot=difficulty;
      assert.ok(botActions(view).some(action=>action.type === 'semutaCommit' || action.type === 'semutaPass'));
    }
    game = initialClaim ? act(game,'r',{type:'semutaCommit',event:initial.batch.event}) : passSemutaMoritaniDiscard(game);
    assert.deepEqual(resources(game),committed);
    assert.equal(seat(game,'r').hand.some(card=>card.id === f.hero),initialClaim);
    game = finishSemutaMoritaniWinner(game);
    assert.equal(game.decision?.kind,'moritaniRetention');
    game = chooseSemutaMoritaniRetention(game,f.weapon);
    game = allowSemutaMoritaniResponse(game);
    const later = game.pendingTreacheryDiscard;assert.ok(later?.reaction);
    assert.equal(later.batch.cause,'battle:moritani');
    assert.deepEqual(later.batch.entries.map(entry=>entry.card.id),[f.defense]);
    game = finalClaim ? act(game,'r',{type:'semutaCommit',event:later.batch.event}) : passSemutaMoritaniDiscard(game);
    assert.equal(game.pendingTreacheryDiscard,null);
    assert.equal(game.moritaniRetention,null);
    assert.equal(seat(game,'l').hand.some(card=>card.id === f.weapon),true);
    assert.equal(seat(game,'r').hand.some(card=>card.id === f.defense),finalClaim);
    assert.equal(game.discard.some(card=>card.id === f.defense),!finalClaim);
    assert.deepEqual(resources(game),committed);
    assert.deepEqual(inventory(game),f.cards);
  });
}