import assert from 'node:assert/strict';
import test from 'node:test';
import { viewGame, type Action, type Game } from '../game/engine';
import { botActions } from '../game/bots';
import { DIFFICULTIES } from '../game/bot-profiles';
import { createTruthMovementAdvancedFixture, actTruthMovementAdvanced as act,
  truthMovementAdvancedClean as clean } from './fixture-truth-movement-advanced';
import { createTruthMovementIxianFixture } from './fixture-truth-movement-ixian';
import { advanceFutureShipment as advance } from './fixture-truthtrance-future-shipment';
import { futureBattleLeaderRecords as records } from './fixture-truth-future-battle-leader';
import { futureBattleLeaderWindow } from '../game/future-battle-leader';

type Fixture = ReturnType<typeof createTruthMovementAdvancedFixture>;

/** The fixture earns the physical Truthtrance and Atreides' Arrakeen army via
 * native Advanced setup and phase actions. Nothing installs a battle or answer. */
function ask(f: {game: Game; target: string; asker: string; truth: string}): { game: Game; leader: string; other: string } {
  let game = f.game;
  const target = game.players.find(player => player.id === f.target)!;
  const leader = target.leaders[0].id, other = target.leaders[1].id;
  assert.ok(viewGame(game, f.asker).truthFutureBattleLeaderTargets.includes(f.target));
  game = act(game, f.asker, { type: 'card', card: f.truth });
  for (let count = 0; game.truthtrance?.stage === 'priority' && count < game.players.length; count++) {
    const player = game.players.find(seat => !game.truthtrance!.passed.includes(seat.id));
    assert.ok(player);
    game = act(game, player.id, { type: 'truthPass' });
  }
  assert.equal(game.truthtrance?.stage, 'ask');
  game = act(game, f.asker, { type: 'truthAsk', question: {
    kind: 'futureBattleLeader', target: f.target, turn: game.turn, leader,
  } } as unknown as Action);
  assert.equal(game.truthtrance?.stage, 'answer');
  return { game, leader, other };
}

function battle(game: Game, f: Fixture): Game {
  game = act(game, f.target, { type: 'endMovement' });
  game = advance(game, state => state.phase === 5 && state.active === f.asker && clean(state));
  game = act(game, f.asker, { type: 'ship', amount: 1, elite: 0,
    territory: 'arrakeen', sector: 10, allyPayment: 0 });
  game = advance(game, clean);
  game = act(game, f.asker, { type: 'endMovement' });
  game = advance(game, state => state.phase === 6 && clean(state) && !!state.active && !state.battle);
  const choice = viewGame(game, game.active!).battleChoices.find(row => row.territory === 'arrakeen');
  assert.ok(choice);
  game = act(game, choice.chooser, { type: 'chooseBattle', territory: choice.territory,
    target: choice.attacker === choice.chooser ? choice.defender : choice.attacker });
  return advance(game, state => !!state.battle && clean(state) && !state.battle.preparation &&
    state.battle.preLeader?.closed !== false);
}

for (const answer of ['yes', 'no'] as const) {
  void test(`Advanced classic ${answer} binds and settles in a real paid-support battle`, () => {
    const f = createTruthMovementAdvancedFixture({ hajr: false });
    const asked = ask(f);
    assert.ok(viewGame(asked.game, f.target).truthFutureBattleLeaderAnswers?.includes(answer));
    let game = act(asked.game, f.target, { type: 'truthAnswer', answer });
    assert.equal(records(game)[0].status, 'waiting');
    game = battle(game, f);
    assert.equal(records(game)[0].status, 'bound');
    assert.equal(records(game)[0].battle, game.battle!.event);
    const plan = (leader: string): Action => ({ type: 'battlePlan', leader, dial: 1,
      support: 1, allyPayment: 0, weapon: null, defense: null });
    const rejected = plan(answer === 'yes' ? asked.other : asked.leader);
    const before = structuredClone(game);
    assert.throws(() => act(game, f.target, rejected));
    assert.deepEqual(game, before);
    game = act(game, f.target, plan(answer === 'yes' ? asked.leader : asked.other));
    const emperor = game.players.find(player => player.id === f.asker)!;
    game = act(game, f.asker, { type: 'battlePlan', leader: emperor.leaders[0].id,
      dial: 0, support: 0, allyPayment: 0, weapon: null, defense: null });
    assert.ok(game.battle?.revealed);
    assert.equal(records(game)[0].status, 'settled');
    assert.equal(game.discard.filter(card => card.id === f.truth).length, 1);
  });
}

void test('Advanced conditional question expires without requiring a battle', () => {
  const f = createTruthMovementAdvancedFixture({ hajr: false });
  const asked = ask(f);
  let game = act(asked.game, f.target, { type: 'truthAnswer', answer: 'yes' });
  assert.equal(records(game)[0].status, 'waiting');
  game = act(game, f.target, { type: 'endMovement' });
  game = advance(game, state => state.turn > f.game.turn || state.phase > 6 || state.status === 'finished');
  assert.equal(game.battle, null);
  assert.equal(records(game)[0].status, 'expired');
});

void test('all bot profiles provide an available Advanced conditional answer', () => {
  const f = createTruthMovementAdvancedFixture({ hajr: false });
  const asked = ask(f);
  for (const difficulty of DIFFICULTIES) {
    const game = structuredClone(asked.game);
    game.players.find(player => player.id === f.target)!.bot = difficulty;
    const reply = botActions(viewGame(game, f.target)).find(action => action.type === 'truthAnswer');
    assert.ok(reply, difficulty);
    const answered = act(game, f.target, reply);
    assert.equal(records(answered)[0].status, 'waiting');
  }
});

void test('Advanced Ixians bind and settle their own leader in a real Cyborg battle', () => {
  const f = createTruthMovementIxianFixture();
  const asked = ask(f);
  let game = act(asked.game, f.target, { type: 'truthAnswer', answer: 'yes' });
  assert.equal(records(game)[0].status, 'waiting');
  game = act(game, f.target, f.matchingMove);
  game = advance(game, clean);
  game = act(game, f.target, { type: 'endMovement' });
  game = advance(game, state => state.phase === 5 && state.active === f.asker && clean(state));
  game = act(game, f.asker, { type: 'ship', amount: 1, elite: 0,
    territory: f.destination.territory, sector: f.destination.sector, allyPayment: 0 });
  game = advance(game, clean);
  game = act(game, f.asker, { type: 'endMovement' });
  game = advance(game, state => state.phase === 6 && clean(state) && !!state.active && !state.battle);
  const choice = viewGame(game, game.active!).battleChoices.find(row => row.territory === f.destination.territory);
  assert.ok(choice);
  game = act(game, choice.chooser, { type: 'chooseBattle', territory: choice.territory,
    target: choice.attacker === choice.chooser ? choice.defender : choice.attacker });
  game = advance(game, state => !!state.battle && clean(state) && !state.battle.preparation &&
    state.battle.preLeader?.closed !== false);
  assert.equal(records(game)[0].status, 'bound');
  assert.equal(records(game)[0].battle, game.battle!.event);
  const common = { dial: 0, support: 0, allyPayment: 0, weapon: null, defense: null };
  const before = structuredClone(game);
  assert.throws(() => act(game, f.target, { type: 'battlePlan', leader: asked.other, ...common }));
  assert.deepEqual(game, before);
  game = act(game, f.target, { type: 'battlePlan', leader: asked.leader, ...common });
  game = act(game, f.asker, { type: 'battlePlan',
    leader: game.players.find(player => player.id === f.asker)!.leaders[0].id, ...common });
  assert.ok(game.battle?.revealed);
  assert.equal(records(game)[0].status, 'settled');
});

void test('Advanced optional-module and Ecaz previews remain outside the shared question window', () => {
  const f = createTruthMovementAdvancedFixture({ hajr: false });
  assert.ok(futureBattleLeaderWindow(f.game));
  assert.equal(futureBattleLeaderWindow({ ...f.game, homeworlds: { custody: null } }), false);
  assert.equal(futureBattleLeaderWindow({ ...f.game, ecazOccupyPreview: true }), false);
});