import assert from 'node:assert/strict';
import test from 'node:test';
import { createElement } from 'react';
import { renderToStaticMarkup } from 'react-dom/server';
import { CoalitionNexus, coalitionNexusOptions } from '../components/coalition-nexus';
import { botActions } from '../game/bots';
import { DIFFICULTIES } from '../game/bot-profiles';
import { coalitionOf, emptyCoalitionState } from '../game/coalition-alliance';
import { applyAction, joinGame, newPlayer, viewGame, type Game } from '../game/engine';
import { quoteVictory } from '../game/victory-quote';
import { advanceShortAlliance, shortAllianceCollection, shortAllianceLobby, type ShortAllianceStep } from './fixture-short-alliance-victory';

/** Real four-seat Basic deal, first turn, normal worm and Nexus; the empty
 * preview ledger and unopened worm order are the only staged inputs here. */
function nexus(): Game {
  let game = shortAllianceLobby();
  joinGame(game, newPlayer('ha', 'Harkonnen', 'harkonnen'));
  for (const player of game.players) game = applyAction(game, player.id, {type:'ready'});
  game = applyAction(game, 'at', {type:'start'});
  const actions: ShortAllianceStep[] = [];
  game = advanceShortAlliance(game, state => state.status === 'playing' && state.turn === 2 && state.phase === 0, actions);
  const index = game.spiceDeck.findIndex(card => 'worm' in card && !card.greatMaker && !card.suppressed && !card.thumper);
  assert.ok(index >= 0);
  game.spiceDeck.unshift(game.spiceDeck.splice(index, 1)[0]);
  game = advanceShortAlliance(game, state => state.nexus && !state.spiceWindow && !state.spiceResolution &&
    !state.response && !state.decision && !state.truthtrance && !state.phaseOpening, actions);
  assert.ok(game.players.every(player => !player.ally));
  game.coalitionState = emptyCoalitionState('three-short');
  game = applyAction(game, 'at', {type:'alliance', target:'em'});
  return applyAction(game, 'em', {type:'alliance', target:'at'});
}

function accept(game: Game, actor: string): Game {
  const offer = game.coalitionState!.proposal; assert.ok(offer);
  return applyAction(game, actor, {type:'coalitionAnswer', event:offer.event, nexus:offer.nexus,
    turn:offer.turn, accept:true, expectedRevision:game.coalitionState!.revision});
}

void test('three-short pair invites a third with unanimous native consent and each bot can propose', () => {
  const game = nexus();
  const pair = coalitionOf(game.players, game.coalitionState, 'at'); assert.ok(pair);
  assert.deepEqual(new Set(pair.members), new Set(['at','em']));
  const controls = viewGame(game, 'gu').coalitionNexus; assert.ok(controls);
  assert.equal(controls.variant, 'three-short');
  assert.deepEqual(coalitionNexusOptions(controls).invitations.map(row => row.entrant), ['gu']);
  const markup = renderToStaticMarkup(createElement(CoalitionNexus, {view:controls, onIntent(){}}));
  assert.match(markup, /up to three members and need three strongholds/);
  assert.match(markup, /Ask to join Atreides, Emperor/);
  for (const difficulty of DIFFICULTIES) {
    const view = viewGame(game, 'gu'); view.players.find(player => player.id === 'gu')!.bot = difficulty;
    const action = botActions(view).find(row => row.type === 'coalitionPropose');
    assert.ok(action, difficulty);
    let pending = applyAction(game, 'gu', action);
    assert.deepEqual(pending.coalitionState!.proposal!.approvals, ['gu']);
    assert.equal(viewGame(pending, 'em').coalitionNexus!.proposal!.entrant, 'gu');
    pending = accept(pending, 'at');
    assert.deepEqual(new Set(coalitionOf(pending.players, pending.coalitionState, 'at')!.members), new Set(['at','em']));
    pending = accept(pending, 'em');
    assert.deepEqual(new Set(coalitionOf(pending.players, pending.coalitionState, 'at')!.members), new Set(['at','em','gu']));
    const full = viewGame(pending, 'ha').coalitionNexus; assert.ok(full);
    assert.deepEqual(coalitionNexusOptions(full).invitations, []);
    const before = structuredClone(pending);
    assert.throws(() => applyAction(pending, 'ha', {type:'coalitionPropose', groupId:pair.id,
      entrant:'ha', expectedRevision:pending.coalitionState!.revision}));
    assert.deepEqual(pending, before);
  }
});

void test('three-short pair and triple share the three-stronghold target and native win', () => {
  const pair = nexus();
  const group = coalitionOf(pair.players, pair.coalitionState, 'at'); assert.ok(group);
  let triple = applyAction(pair, 'at', {type:'coalitionPropose', groupId:group.id, entrant:'gu',
    expectedRevision:pair.coalitionState!.revision});
  triple = accept(triple, 'em');
  triple = accept(triple, 'gu');
  for (const [source, members] of [[pair, ['at','em']], [triple, ['at','em','gu']]] as const) {
    let closed = source;
    for (const player of source.players) {
      if (closed.nexus && !closed.ready.includes(player.id))
        closed = applyAction(closed, player.id, {type:'ready'});
    }
    closed = advanceShortAlliance(closed, state => !state.nexus && state.phase >= 2, []);
    // Preserve the actual alliance; only the Collection boundary and original
    // physical forces are staged by the common stronghold fixture.
    const game = shortAllianceCollection(closed);
    const row = viewGame(game, 'at').victoryProgress.find(progress => progress.player === 'at'); assert.ok(row);
    assert.equal(row.target, 3);
    assert.equal(row.qualifies, true);
    assert.equal(row.strongholds.length, 3);
    assert.deepEqual(new Set(quoteVictory(game).winner), new Set(members));
    let current = game;
    for (const player of game.players) {
      if (current.status === 'finished') break;
      current = applyAction(current, player.id, {type:'ready'});
    }
    assert.equal(current.status, 'finished');
    assert.deepEqual(new Set(current.winner), new Set(members));
  }
});