import assert from 'node:assert/strict';
import test from 'node:test';
import { registerHooks } from 'node:module';
import { readFileSync } from 'node:fs';
import { createElement } from 'react';
import { renderToStaticMarkup } from 'react-dom/server';
import { applyAction, viewGame, type GameView } from '../game/engine';
import { advanceShortAlliance, shortAllianceLobby, type ShortAllianceStep } from './fixture-short-alliance-victory';

const aliases = registerHooks({
  resolve(specifier, context, next) {
    return next(specifier === 'next/image' ? 'vinext/shims/image' :
      specifier === 'next/link' ? 'vinext/shims/link' : specifier, context);
  },
  load(url, context, next) {
    if (!url.endsWith('.module.css')) return next(url, context);
    const css = readFileSync(new URL(url), 'utf8');
    const classes = Object.fromEntries([...css.matchAll(/\.([a-zA-Z_][\w-]*)/g)].map(match => [match[1], match[1]]));
    return { format: 'module', source: `export default ${JSON.stringify(classes)}`, shortCircuit: true };
  },
});
const { GameTable } = await import('../components/game-table');
aliases.deregister();

const table = (game: GameView, busy = false) => renderToStaticMarkup(createElement(GameTable,
  { game, busy, send: async () => {}, onExit() {} }));

function allianceLabel(html: string) {
  const label = html.match(/<label\b[^>]*>(?:(?!<\/label>)[\s\S])*Optional: two-member alliances win with three strongholds(?:(?!<\/label>)[\s\S])*<\/label>/)?.[0];
  assert.ok(label, 'The optional alliance victory control is present.');
  return label;
}

void test('short alliance lobby option shows its selected state and belongs to the host', () => {
  const original = shortAllianceLobby();
  const fresh = allianceLabel(table(viewGame(original, 'at')));
  assert.match(fresh, /type="checkbox"/);
  assert.doesNotMatch(fresh, /\bchecked=/);
  assert.doesNotMatch(fresh, /\bdisabled=/);

  const selected = applyAction(original, 'at', { type: 'shortAllianceVictory', enabled: true });
  const host = allianceLabel(table(viewGame(selected, 'at')));
  const guest = allianceLabel(table(viewGame(selected, 'em')));
  assert.match(host, /\bchecked=/);
  assert.doesNotMatch(host, /\bdisabled=/);
  assert.match(guest, /\bchecked=/);
  assert.match(guest, /\bdisabled=/);
  assert.match(allianceLabel(table(viewGame(selected, 'at'), true)), /\bdisabled=/);
  assert.throws(() => applyAction(selected, 'em', { type: 'shortAllianceVictory', enabled: false }));
});

void test('a real started game keeps its selected alliance rule visible to every seat', () => {
  let game = applyAction(shortAllianceLobby(), 'at', { type: 'shortAllianceVictory', enabled: true });
  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', actions);
  assert.ok(actions.length > 0, 'Complete the real private setup controls.');
  for (const player of game.players) {
    const html = table(viewGame(game, player.id));
    assert.match(html, /Optional alliance rule: a two-member alliance wins with three strongholds/);
    assert.match(html, /Two-controller games retain their four-stronghold target/);
  }
});