import { makeWorld, tick, sim, aimAt, check, section, report, CFG, Input, ROOMS } from './harness.mjs';
const { Arena } = await import('../src/arena.js');

section('OVERLOAD — build a bomb out of charge');
{
  const w = makeWorld(5);
  w.load(ROOMS[1]);
  w.particles.length = 0;
  const p = w.spawn({ x: 640, y: 360, el: 'C' });
  p.fixed = true;
  w.molly.x = 300; w.molly.y = 360;
  aimAt(w, 640, 360);

  check('starts unloaded', !p.fuse, `load=${p.load||0}`);
  for (let k = 0; k < CFG.OVERLOAD_MAX; k++) {
    w.molly.cool = 0; w.bolts.fire(w, 1);
    for (let i = 0; i < 200 && w.bolts.list.length; i++) tick(w);
  }
  check('3 proton bolts light a fuse', p.fuse > 0, `fuse=${(p.fuse||0).toFixed(2)}s`);

  let boomT = null;
  for (let i = 0; i < 400 && boomT === null; i++) { tick(w); if (!p.fuse) boomT = i / 120; }
  check('fuse detonates', boomT !== null, boomT ? `after ${boomT.toFixed(2)}s` : 'never');
  check('detonation counted', w.overload.detonations === 1, `n=${w.overload.detonations}`);
}

section('OVERLOAD — the cascade');
{
  const w = makeWorld(5);
  w.load(ROOMS[1]);
  w.particles.length = 0;
  // a tight cluster: one blast should tip the neighbours over too
  for (let i = 0; i < 10; i++)
    w.spawn({ x: 560 + (i % 5) * 46, y: 320 + Math.floor(i / 5) * 46, el: 'H' });
  w.molly.x = 200; w.molly.y = 100;
  const seed = w.particles[0];
  seed.load = CFG.OVERLOAD_MAX; seed.fuse = 0.1; seed.fuseMax = 0.1;

  for (let i = 0; i < 600; i++) tick(w);
  check('one blast triggers others (CASCADE)', w.overload.detonations > 1,
        `${w.overload.detonations} detonations from 1 seed`);
  check('blast makes radicals (your mess now)', w.radicals.chain >= 0,
        `radicals spawned=${w.particles.filter(p=>p.radical).length}`);
}

section('OVERLOAD — the juice budget holds');
{
  const { Juice } = await import('../src/juice.js');
  Juice.reset();
  let granted = 0;
  for (let i = 0; i < 30; i++) granted += Juice.hitstop(CFG.BLAST_HITSTOP);
  check('30 simultaneous blasts cannot freeze the screen', granted <= CFG.JUICE_HITSTOP_CAP,
        `${granted}ms granted of ${30*CFG.BLAST_HITSTOP}ms requested`);
}

section('PERF — the densest arena');
{
  const w = makeWorld(2);
  const a = new Arena();
  w.load(a.room(7)); a.enter(w, 7);
  sim(w, 6);
  const t0 = process.hrtime.bigint();
  for (let i = 0; i < 600; i++) tick(w);      // 5 sim-seconds
  const ms = Number(process.hrtime.bigint() - t0) / 1e6;
  const perStep = ms / 600;
  check('sim step is fast enough for 60fps', perStep < 4,
        `${perStep.toFixed(2)}ms/step, ${w.particles.length} atoms, ${w.radicals.count} radicals`);
}

process.exit(report() ? 0 : 1);