// All mutable game state in one place, plus the point-reset that re-arms it.

import { HOME } from './config.js';

export const P = { x: 1.3, z: 22.8, side: 'P', pose: 'idle', poseT: 0, swingT: -1, facing: 1, runT: 0 };
export const O = { x: -1.3, z: 1.0, side: 'O', pose: 'idle', poseT: 0, swingT: -1, facing: 1, runT: 0 };
export const ball = { x: 0, y: 1, z: 20, vx: 0, vy: 0, vz: 0, g: 9.2,
  active: false, lastHit: 'P', bounces: 0, firstLand: null, collected: false, kills: 0, bomb: false, flame: false };
export const score = { pts: [0, 0], games: [0, 0], server: 'P' }; // pts index 0=P 1=O
export const crowd = { cheer: 0, dots: [] }; // dots are (re)built by render.buildCrowd

// everything that used to be loose top-level lets
export const G = {
  mode: 'tennis',     // tennis | transition | splatter
  transT: 0,          // transition timeline clock
  tFlags: null,       // one-shot markers within the transition
  hideO: false,       // the opponent has... left the match
  everTransitioned: false,
  phase: 'pretoss',   // pretoss | toss | rally | over
  serveNum: 1,
  overT: 0,
  hitstop: 0,
  flash: null,        // {text, t}
  shake: null,        // {t, mag} — camera shake, decays like flash (bomb impact)
  boomFlash: 0,       // s of white flash frame left (bomb impact)
  lastOrderT: -9,     // idleT of the last 'Order' call — bomb chains mustn't spam the umpire
  idleT: 0,
  outMarker: null,    // {x, z, out, t} — where your last shot lands
  boy: null,          // ball boy sprinting across: {x, z, dir, runT}
  aiServeT: 0,
  aiSwingCool: 0,
  aiReactT: 9,        // time since the player's last hit; CPU reads the shot after TUNE.aiReaction
  wasServe: false,    // the ball in flight is a serve (first bounce must hit the box)
  splatT: 0,          // time survived in splatter mode — drives the difficulty ramp
  bombs: 0,           // bomb-ball stock; the next serve auto-consumes one (delivery 1 of the ladder)
  triples: 0,         // triple-serve stock — a serve fans into three balls (delivery 2)
  flames: 0,          // flame-ball stock — kills on any touch, full pierce (delivery 3)
  mgT: 0,             // s of machine-gun time left (delivery 4) — auto-fire, no serving
  mgCool: 0,          // s until the next pickup-mode pellet
  deliveries: 0,      // tins delivered this run — indexes the weapon ladder
  tinDue: false,      // the rules called for new balls — deliver at the next changeover
  pendingGame: false, // a game just ended — flash 'GAME N' when the next one arms
  aim: null,          // live two-stage serve aim {fx, fy, mag} while the thumb is down (splatter pretoss)
  interlude: false,   // sudden-death duel vs the racket zombie: falsy, or {introT} while announcing
  duelLerp: 0,        // 0..1 — how far the court has returned to tennis colors for the duel
  horde: null,        // active horde wave {t, spawnT, mgT} — machine-gun racket, no serving
  runGames: 0,        // games finished this run (either side) — the difficulty director
  sets: [0, 0],       // splatter sets won [you, them]; 6 games = a set = a horde
  changeover: false,  // the odd-game breather: no spawns, no serving, the boys mop
  shameGame: false,   // they took a game — the next new-balls delivery is withheld
  best: null,         // best run {games, sets}, loaded from localStorage when you get eaten
  lastScoreT: -9,     // idleT of the last score voice — rate-limits umpire during a horde
  eatenT: 0,          // time since you were eaten — gates the restart tap
  missLog: [],        // swing diagnostics ring buffer (tennis mode) — inspect via T.G.missLog
  swingSnaps: null,   // ball-approach samples during the live swing, feeds the miss log
  rallyNear: null,    // closest the incoming ball got this rally (for never-swung passes)
  swung: false,       // player swung at least once this rally — whiff log supersedes PASSED
  lastMiss: null,     // {text, at} — most recent miss reason, drawn on the HUD briefly
  logShow: false,     // tap the scoreboard to toggle the on-screen miss-log dump
};

export const other = s => s === 'P' ? 'O' : 'P';
export const deuceSide = () => (score.pts[0] + score.pts[1]) % 2 === 0; // even points → deuce (right) side

export function setupPoint() {
  G.phase = 'pretoss'; ball.active = false; ball.bounces = 0; ball.firstLand = null;
  G.swingSnaps = null; G.rallyNear = null; G.swung = false;
  if (G.mode === 'splatter') { // always your serve, from wherever you're standing
    score.server = 'P';
    P.pose = 'idle'; P.swingT = -1; P.facing = 1;
    return;
  }
  const sv = score.server === 'P' ? P : O, rc = score.server === 'P' ? O : P;
  const sx = deuceSide() ? 1.3 : -1.3;
  sv.x = sv.side === 'P' ? sx : -sx;           // deuce side mirrors across the net
  sv.z = sv.side === 'P' ? 24.3 : -0.5;
  rc.x = -sv.x; rc.z = rc.side === 'P' ? 22.5 : HOME.O.z - 1.3;
  P.pose = O.pose = 'idle'; P.swingT = O.swingT = -1;
  P.facing = O.facing = 1; // canonical righty stance — bounce/serve sprites must not render mirrored
  G.aiServeT = score.server === 'O' ? 1.4 : 0;
}

export function sendBoy(tx = ball.x, tz = ball.z) { // fetch a dead ball — or mop a splat
  if (tz < -3 || tz > 27) return; // target left the field lengthwise, let it go
  const dir = tx > 0 ? 1 : -1;    // enter from the opposite side so the pickup is mid-run
  G.boy = { x: dir > 0 ? -13 : 13, z: tz, dir, runT: 0 };
}