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 { futureBattleLeaderTiming } from '../game/future-battle-leader';
import { advanceTruthRevival, nextTruthRevival, truthRevivalClean, truthRevivalInventory, truthRevivalPlayer } from './fixture-truth-revival';
import {
  actFutureBattleCharity as act, askFutureBattleCharity as ask,
  createFutureBattleCharityFixture, futureBattleCharityRecords as records,
  reachFutureBattleCharityBattle as reachBattle, reachFutureBattleCharityWindow as reachMovement,
} from './fixture-truth-future-battle-charity';

/** Original turn-two Storm and its pre-Spice draw window: no played hand,
 * army, phase or promise is installed to manufacture these opportunities. */
function fixture(phase: 0 | 1) {
  const source = createFutureBattleCharityFixture();
  const game = structuredClone(phase === 0 ? source.base.storm.before : source.base.storm.after);
  assert.equal(game.phase, phase);
  assert.equal(game.turn, source.game.turn);
  assert.ok(truthRevivalClean(game));
  assert.ok(truthRevivalPlayer(game, source.asker).hand.some(card => card.id === source.truth));
  assert.deepEqual(truthRevivalInventory(game), source.originalCards);
  assert.ok(viewGame(game, source.asker).truthFutureBattleLeaderTargets.includes(source.target));
  return { ...source, game };
}

function finishBattle(game: Game, f: ReturnType<typeof fixture>, answer: 'yes' | 'no') {
  const plan = (leader: string): Action => ({type: 'battlePlan', leader, dial: 0, support: 0, weapon: null, defense: null});
  const before = structuredClone(game);
  assert.throws(() => act(game, f.target, plan(answer === 'yes' ? f.alternative : f.leader)));
  assert.deepEqual(game, before);
  game = act(game, f.target, plan(answer === 'yes' ? f.leader : f.alternative));
  const opponent = game.battle!.attacker === f.target ? game.battle!.defender : game.battle!.attacker;
  const other = truthRevivalPlayer(game, opponent).leaders.find(leader =>
    !leader.dead && !leader.capturedBy && !leader.gholaBy && !leader.usedAt);
  assert.ok(other);
  game = act(game, opponent, plan(other.id));
  assert.ok(game.battle?.revealed);
  assert.equal(records(game)[0].status, 'settled');
  return game;
}

for (const phase of [0, 1] as const) {
  const window = phase === 0 ? 'Storm' : 'Spice Blow';
  for (const answer of ['yes', 'no'] as const) {
    void test(`Basic ${window} future-battle ${answer} preserves its native continuation and binds the later battle`, () => {
      const f = fixture(phase);
      const storm = f.game.storm, pending = f.game.stormPending;
      const spiceDeck = structuredClone(f.game.spiceDeck);
      const forces = structuredClone(truthRevivalPlayer(f.game, f.target).forces);
      let game = act(ask(f), f.target, {type: 'truthAnswer', answer});
      assert.equal(game.phase, phase); assert.equal(game.storm, storm); assert.equal(game.stormPending, pending);
      assert.deepEqual(game.spiceDeck, spiceDeck);
      assert.deepEqual(truthRevivalPlayer(game, f.target).forces, forces);
      assert.equal(records(game)[0].status, 'waiting');
      game = reachMovement(game, f);
      assert.equal(truthRevivalPlayer(game, f.target).forces[f.base.location], undefined);
      assert.equal(truthRevivalPlayer(game, f.target).tanks, 3);
      assert.ok(game.spiceDeck.length < spiceDeck.length, 'The original Spice Blow must actually draw.');
      game = reachBattle(game, f);
      assert.equal(records(game)[0].status, 'bound');
      game = finishBattle(game, f, answer);
      assert.equal(game.discard.filter(card => card.id === f.truth).length, 1);
      assert.deepEqual(truthRevivalInventory(game), f.originalCards);
    });
  }

  void test(`Basic ${window} conditional leader answer expires without a later battle`, () => {
    const f = fixture(phase);
    let game = act(ask(f), f.target, {type: 'truthAnswer', answer: 'yes'});
    game = reachMovement(game, f);
    assert.ok(Object.values(truthRevivalPlayer(game, f.target).forces).every(amount => amount === 0));
    for (let count = 0; count < 1200 && game.turn === f.game.turn && game.phase <= 6 && game.status === 'playing'; count++) {
      if (game.phase === 5 && game.active && truthRevivalClean(game)) {
        game = act(game, game.active, {type: 'endMovement'}); continue;
      }
      const next = nextTruthRevival(game); assert.ok(next);
      game = act(game, next.actor, next.action);
    }
    assert.equal(records(game)[0].status, 'expired');
    assert.equal(game.discard.filter(card => card.id === f.truth).length, 1);
  });

  void test(`each AI difficulty can legally answer the Basic ${window} question`, () => {
    for (const difficulty of DIFFICULTIES) {
      const f = fixture(phase);
      const asked = ask(f);
      truthRevivalPlayer(asked, f.target).bot = difficulty;
      const answer = botActions(viewGame(asked, f.target)).find(action => action.type === 'truthAnswer');
      assert.ok(answer);
      const game = act(asked, f.target, answer);
      assert.equal(records(game)[0].status, 'waiting');
    }
  });
}

void test('early timing rejects controlled unsupported Storm and Spice parents', () => {
  const cases: {phase: 0 | 1; name: string; set: (game: Game) => void}[] = [
    {phase: 0, name: 'unresolved Storm dials', set: game => { game.stormPending = null; }},
    {phase: 0, name: 'Storm resolution', set: game => {
      game.stormResolution = {from: game.storm, distance: 1, traversed: 0, pending: []};
    }},
    {phase: 1, name: 'Spice resolution', set: game => { game.spiceResolution = {skipped: []}; }},
    {phase: 1, name: 'Spice sequence', set: game => { game.spiceSequence = {pile: 0, skipped: []}; }},
    {phase: 1, name: 'active Spice window', set: game => {
      game.spiceWindow = {territory: 'red_chasm', sector: 7, amount: 1, harvested: false};
    }},
    {phase: 1, name: 'Nexus', set: game => { game.nexus = true; }},
    {phase: 1, name: 'worm ride', set: game => { game.wormRides = ['red_chasm']; }},
  ];
  for (const entry of cases) {
    const f = fixture(entry.phase);
    // Controlled parent probes: these fields represent continuations that are
    // outside the permitted quiet window, not an original full-game journey.
    entry.set(f.game);
    assert.equal(futureBattleLeaderTiming(f.game), false, entry.name);
  }
});

void test('real pre-dial Storm and active Spice Blow hide targets and reject the early question', () => {
  const source = fixture(0);
  const storm = advanceTruthRevival(structuredClone(source.base.continuation.before), state =>
    state.turn === source.game.turn && state.phase === 0 && state.stormPending === null && truthRevivalClean(state));
  const spiceSource = fixture(1);
  const spice = advanceTruthRevival(structuredClone(spiceSource.game), state =>
    state.turn === spiceSource.game.turn && state.phase === 1 && !!state.spiceWindow && truthRevivalClean(state));
  for (const [f, game] of [[source, storm], [spiceSource, spice]] as const) {
    assert.deepEqual(viewGame(game, f.asker).truthFutureBattleLeaderTargets, []);
    const before = structuredClone(game);
    assert.throws(() => ask({ ...f, game }), /supported quiet/);
    assert.deepEqual(game, before);
  }
});