import assert from 'node:assert/strict';
import test from 'node:test';
import { applyAction, viewGame, type Game } from '../game/engine';
import { botActions } from '../game/bots';
import { DIFFICULTIES } from '../game/bot-profiles';
import { TRUTH_CARD_NAMES } from '../game/truthtrance-card-names';
import { knowledgeBotActions, knowledgeGame, rejectKnowledge } from './truthtrance-knowledge-fixture';
import { createTruthtranceNoFieldFixture, declareNoFieldTruthtrance,
  passNoFieldTruthPriority, truthtranceNoFieldCards, truthtranceNoFieldPlayer } from './fixture-truthtrance-no-field';
import { advanceTruthMovementNativeEarly, createTruthMovementNativeEarlyFixture,
  truthMovementNativeEarlyInventory } from './fixture-truth-movement-native-early';

function ask(game: Game, asker: string, target: string, text: string, scope: 'fact' | 'currentTurn' = 'fact') {
  const waiting = passNoFieldTruthPriority(declareNoFieldTruthtrance(game, asker));
  return applyAction(waiting, asker, { type: 'truthAsk', question: { kind: 'freeform', target, scope, text } });
}
function question(game: Game) {
  const q = game.truthtrance?.question;
  assert.equal(q?.kind, 'freeform');
  if (q?.kind !== 'freeform') throw Error('Expected a freeform question');
  return q;
}
function verify(game: Game, target: string, answer: 'yes' | 'no' | 'unknown') {
  assert.equal(question(game).interpreted?.version, 8);
  assert.equal(viewGame(game, target).truthAnswer, answer);
  for (const observer of game.players.filter(player => player.id !== target))
    assert.equal(viewGame(game, observer.id).truthAnswer, null);
  for (const difficulty of DIFFICULTIES) {
    const view = viewGame(game, target);
    view.players.find(player => player.id === target)!.bot = difficulty;
    assert.deepEqual(botActions(view), [{ type: 'truthAnswer', answer }]);
  }
  for (const wrong of (['yes', 'no', 'unknown'] as const).filter(value => value !== answer))
    rejectKnowledge(game, target, { type: 'truthAnswer', answer: wrong });
  const restored = JSON.parse(JSON.stringify(game)) as Game;
  const done = applyAction(restored, target, { type: 'truthAnswer', answer });
  if (answer === 'unknown') assert.equal(done.truthtrance?.stage, 'unknown');
  else assert.equal(done.truthHistory!.at(-1)!.answer, answer);
  return done;
}

for (const [wording, answer] of [
  ['Do you have a concealed No-Field with printed value 3?', 'yes'],
  ['Do you have a concealed No-Field with printed value 5?', 'no'],
  ['Do you have a concealed No-Field with printed value 3 and do you have at least 0 forces in your reserves?', 'yes'],
] as const) {
  void test(`V8 checks the existing concealed marker privately: ${answer}`, () => {
    const f = createTruthtranceNoFieldFixture({ marker: 3 });
    const before = structuredClone(truthtranceNoFieldPlayer(f.game, f.owner).noField);
    const cards = truthtranceNoFieldCards(f.game);
    const game = ask(f.game, f.asker, f.owner, wording);
    for (const player of game.players.filter(player => player.id !== f.owner))
      assert.equal(viewGame(game, player.id).richeseNoField!.private, null);
    const done = verify(game, f.owner, answer);
    assert.deepEqual(truthtranceNoFieldPlayer(done, f.owner).noField, before);
    assert.deepEqual(truthtranceNoFieldCards(done), cards);
  });
}

void test('V8 asks about absent No-Field custody without inferring a printed zero', () => {
  const f = createTruthtranceNoFieldFixture({ marker: 3, boundary: 'beforeShipment' });
  const game = ask(f.game, f.asker, f.owner, 'Do you have a concealed No-Field with printed value 0?');
  verify(game, f.owner, 'no');
});

/** Real setup and ordinary auction progression; the shared fixture stages
 * physical Truthtrance acquisition without inventing a card. */
function inspectedAuction() {
  let game = knowledgeGame();
  for (let n = 0; n < 200 && !(game.phase === 3 && game.auction?.peekKnown && !game.response && !game.phaseOpening); n++) {
    const candidate = game.players.flatMap(player => knowledgeBotActions(game, player.id)
      .map(action => ({ id: player.id, action })))[0];
    assert.ok(candidate, `Expected a native auction action in phase ${game.phase}`);
    game = applyAction(game, candidate.id, candidate.action);
  }
  assert.equal(game.phase, 3);
  assert.equal(game.auction?.peekKnown, true);
  assert.ok(game.auction?.cards[game.auction.index]);
  return game;
}

void test('V8 checks the actual inspected auction face privately', () => {
  const initial = inspectedAuction(), card = initial.auction!.cards[initial.auction!.index];
  for (const [name, answer] of [[card.name, 'yes'], [card.name === 'Shield' ? 'Snooper' : 'Shield', 'no']] as const) {
    const game = ask(structuredClone(initial), 'a', 'o', `Is the current auction card you inspected a ${name}?`);
    for (const id of ['a', 'b', 'f']) assert.equal(viewGame(game, id).auction?.card, null);
    const done = verify(game, 'o', answer);
    assert.equal(done.auction!.cards[done.auction!.index].id, card.id);
  }
  const missing = structuredClone(initial);
  missing.auction!.peekKnown = false;
  const unknown = ask(missing, 'a', 'o', `Is the current auction card you inspected a ${card.name}?`);
  verify(unknown, 'o', 'unknown');
});

void test('V8 checks the recorded Ixian group rather than the remaining auction lots', () => {
  const fixture = createTruthMovementNativeEarlyFixture({ roster: 'ixians-tleilaxu' });
  let initial = advanceTruthMovementNativeEarly(fixture.game, state =>
    state.phase === 3 && state.decision?.kind === 'ixAuction' && !state.response);
  const returned = initial.ixAuction!.cards[0].id;
  initial = applyAction(initial, 'ixians', { type: 'decision', card: returned, position: 'bottom' });
  initial = advanceTruthMovementNativeEarly(initial, state =>
    state.phase === 3 && !!state.auction && !!state.ixAuctionKnown &&
    !state.response && !state.decision && !state.phaseOpening);
  const observed = structuredClone(initial.ixAuctionKnown!.cards), inventory = truthMovementNativeEarlyInventory(initial);
  const present = observed[0].name, absent = TRUTH_CARD_NAMES.find(name => !observed.some(card => card.name === name));
  assert.ok(absent);
  for (const [name, answer] of [[present, 'yes'], [absent, 'no']] as const) {
    const game = ask(structuredClone(initial), 'atreides', 'ixians', `Does your recorded Ixian auction group contain ${name}?`);
    const done = verify(game, 'ixians', answer);
    assert.deepEqual(done.ixAuctionKnown!.cards, observed);
    assert.deepEqual(truthMovementNativeEarlyInventory(done), inventory);
  }
  const stale = structuredClone(initial);
  stale.ixAuctionKnown = null;
  verify(ask(stale, 'atreides', 'ixians', `Does your recorded Ixian auction group contain ${present}?`), 'ixians', 'unknown');
});

void test('V8 preserves unstamped and current-turn questions and rejects changed receipts', () => {
  const f = createTruthtranceNoFieldFixture({ marker: 3 });
  const text = 'Do you have a concealed No-Field with printed value 3?';
  const future = ask(structuredClone(f.game), f.asker, f.owner, text, 'currentTurn');
  assert.equal(question(future).interpreted, undefined);
  const old = ask(structuredClone(f.game), f.asker, f.owner, text);
  delete question(old).interpreted;
  assert.equal(viewGame(old, f.owner).truthAnswer, null);
  const legacy = applyAction(old, f.owner, { type: 'truthAnswer', answer: 'no' });
  assert.equal(legacy.truthHistory!.at(-1)!.answer, 'no');
  const changed = ask(structuredClone(f.game), f.asker, f.owner, text);
  const q = question(changed); assert.equal(q.interpreted?.version, 8);
  if (!q.interpreted) throw Error('Expected an interpreted question');
  q.interpreted.fact = { kind: 'noFieldValue', value: 5 };
  assert.throws(() => viewGame(changed, f.owner));
  assert.throws(() => applyAction(changed, f.owner, { type: 'truthAnswer', answer: 'yes' }));
});