import * as THREE from 'three';
import { createPhysicsWorld, initPhysics } from '../src/physics/world.js';
import { createMatch } from '../src/game/match.js';
import { describeHit } from '../src/game/hits.js';

/**
 * Fire skaters at each other from various run-ups and angles and print what
 * comes out. A tuning aid, not a test: the numbers below are the ones you stare
 * at when deciding what should count as a bump, a stagger and a knockdown.
 *
 *   node tools/hitprobe.mjs
 */

const DT = 1 / 60;
await initPhysics();

/**
 * @param {'stationary'|'full'} mode  is the victim skating into it too
 * @param {number} gap                metres between them at the start
 * @param {number} offsetZ            lateral offset — 0 is dead centre
 */
function probe(mode, gap, offsetZ = 0) {
  const physics = createPhysicsWorld();
  const match = createMatch({ scene: new THREE.Group(), physics, perTeam: 1, teams: 2 });
  const [a, b] = match.states;
  a.x = -gap / 2; a.z = 0; a.yaw = Math.PI / 2;
  b.x = gap / 2; b.z = offsetZ; b.yaw = mode === 'full' ? -Math.PI / 2 : Math.PI / 2;
  match.skaters[0].proxy.teleport(a.x, a.z);
  match.skaters[1].proxy.teleport(b.x, b.z);
  match.setControl(0, { x: 1, y: 0, sprint: true, brake: false, cameraYaw: 0 });
  match.setControl(1, mode === 'full'
    ? { x: -1, y: 0, sprint: true, brake: false, cameraYaw: 0 }
    : { x: 0, y: 0, sprint: false, brake: false, cameraYaw: 0 });

  const seen = new Set();
  const out = [];
  for (let n = 0; n < 6 / DT; n++) {
    match.update(DT);
    for (const h of match.recentHits) {
      const id = `${h.at}|${h.attacker}`;
      if (!seen.has(id)) {
        seen.add(id);
        out.push(h);
      }
    }
  }
  physics.destroy();
  return out;
}

const rows = [
  ['stationary', 2.5, 0],
  ['stationary', 5, 0],
  ['stationary', 10, 0],
  ['stationary', 22, 0],
  ['stationary', 22, 0.45],
  ['stationary', 22, -0.45],
  ['full', 10, 0],
  ['full', 24, 0],
  ['full', 24, 0.5],
];

console.log('mode        gap  offZ | outcome    m/s   sev  limbs                    description');
console.log('-'.repeat(96));
for (const [mode, gap, off] of rows) {
  const hits = probe(mode, gap, off);
  if (!hits.length) {
    console.log(`${mode.padEnd(11)} ${String(gap).padStart(4)} ${String(off).padStart(5)} | (no hit)`);
    continue;
  }
  for (const h of hits) {
    console.log(
      `${mode.padEnd(11)} ${String(gap).padStart(4)} ${String(off).padStart(5)} | `
      + `${h.outcome.padEnd(10)} ${h.speed.toFixed(1).padStart(4)} ${h.severity.toFixed(1).padStart(5)}  `
      + `${(h.attackerPart + '→' + h.victimPart).padEnd(24)} ${describeHit(h)}`,
    );
  }
}