/**
 * Dev-only SHOP HUD test: boots the game, lands on the home world, forces
 * the surface stage, opens the buy/sell screen, and checks the corner
 * readout (SurfaceScene.buildShopHud) — the main game's own credits +
 * minerals pair, rebuilt over the shop clip in the upper right:
 *
 *   - the HUD is built with the shop view (credits line + minerals line
 *     + hold bar, upper right, the GameScene recipe)
 *   - the credits line reads the ship's ledger and sits at the corner
 *     margin; the minerals line stacks below it (topOffset recipe)
 *   - a confirmed trade moves the credits readout (count-up settles on
 *     the new ledger)
 *   - leaving the shop tears the readout down with the shop view
 *
 *   python3 -m http.server 8125
 *   node dev/cdp-firefox.mjs http://127.0.0.1:8125/dev/shop-hud.html \
 *     'return window.__SHOP_HUD_TEST__;' 60000
 */
import Phaser from '../js/vendor/phaser.js';
import { config } from '../js/config/Config.js';
import { ConfigLoader } from '../js/config/ConfigLoader.js';
import { createGameConfig } from '../js/config/GameConfig.js';
import { GameScene } from '../js/scenes/GameScene.js';
import { SurfaceScene } from '../js/scenes/SurfaceScene.js';

const fail = (msg, extra = {}) => {
  window.__SHOP_HUD_TEST__ = { pass: false, error: String(msg), ...extra };
  console.error('[shop-hud] FAIL:', msg, extra);
};
const step = (name, cond, extra = {}) => {
  if (!cond) throw new Error(`${name}: ${JSON.stringify(extra).slice(0, 300)}`);
  window.__STEPS__ = (window.__STEPS__ ?? []).concat(name);
};
const sleep = (ms) => new Promise((r) => setTimeout(r, ms));
const waitFor = async (fn, timeoutMs = 3000) => {
  const t0 = Date.now();
  for (;;) {
    if (fn()) return true;
    if (Date.now() - t0 > timeoutMs) return false;
    await sleep(50);
  }
};

const data = await ConfigLoader.load();
config.init(data);
const gameConfig = createGameConfig();
gameConfig.scene = [GameScene, SurfaceScene];
const game = new Phaser.Game(gameConfig);
window.game = game;

(async () => {
  // 1 — the flight scene is live (v4 boots asynchronously).
  let gs = null;
  for (let i = 0; i < 300; i++) {
    gs = game.scene?.getScene('GameScene') ?? null;
    if (gs && gs.ship) break;
    await sleep(100);
  }
  if (!gs || !gs.ship) throw new Error('GameScene never came up');
  step('boot', true, { frame: gs.planet.sheetFrame });

  // The probe drives the trade panel on the home world — lift the TRADE gate
  // (the 'Special Delivery' capital-landing witness) so Buy/Sell is live.
  gs.story.capitalLanded = true;

  // 2 — a known ledger + cargo (something to sell).
  const goods = config.get('goods.goods', []);
  const A = goods[0].id;
  gs.ship.credits = 10000;
  gs.ship.minerals = 37;
  gs.ship.cargo.add([A]);
  step('ledger-seeded', gs.ship.credits === 10000 && gs.ship.minerals === 37);

  // 3 — the real entry point + the surface stage (skip the clip).
  gs.startLanding(gs.commsTargetFor(gs.planet));
  await sleep(300);
  const ss = game.scene.getScene('SurfaceScene');
  if (!ss) throw new Error('SurfaceScene never registered');
  for (let i = 0; i < 120 && ss.sys.getStatus() !== 5; i++) await sleep(250);
  ss.startSurface();
  for (let i = 0; i < 40 && ss.phase !== 'surface'; i++) await sleep(100);
  if (ss.phase !== 'surface') throw new Error('surface stage never reached (phase=' + ss.phase + ')');
  step('surface-stage', true);

  // 4 — open the shop the real way; headless (no shop clip) falls back to
  // the direct build (same UI path — the HUD is part of buildShopView).
  ss.toggleShop();
  await sleep(200);
  if (!ss.shopView) ss.buildShopView();
  if (!ss.shopView) throw new Error('no shopView');
  step('shop-open', true, { shopMode: ss.shopMode });

  // 5 — THE HUD: the corner readout is up with the shop view.
  const hud = ss.shopHud;
  step('hud-built', !!hud && !!hud.creditsHud && !!hud.mineralHud,
    { hud: !!hud, credits: !!hud?.creditsHud, minerals: !!hud?.mineralHud });

  const W = game.scale.width; // 1280
  const padC = Number(config.get('creditshud.pad', 16));
  const padM = Number(config.get('mineralhud.pad', 16));

  // The CREDITS line: the ship's ledger, right-anchored at the corner margin
  // (origin 1,0 — x is the RIGHT edge, y the top). The count-up is a ~420 ms
  // tween — poll until it settles on the seeded ledger.
  const cl = hud.creditsHud.label;
  const wantC = `CREDITS  ${gs.ship.credits.toLocaleString('en-US')}`;
  await waitFor(() => cl.text === wantC);
  step('credits-line',
    cl.text === wantC
      && Math.abs(cl.x - (W - padC)) < 1 && Math.abs(cl.y - padC) < 1,
    { text: cl.text, x: cl.x, y: cl.y, right: W - padC });

  // The MINERALS line: stacks BELOW the credits line (topOffset recipe),
  // right-anchored the same way — n / CAP like the main game's corner.
  const ml = hud.mineralHud.label;
  const expectM = `MINERALS  ${gs.ship.minerals} / ${gs.ship.stats.mineralStorage}`;
  step('minerals-line',
    ml.text === expectM
      && Math.abs(ml.x - (W - padM)) < 1,
    { text: ml.text, want: expectM, x: ml.x, y: ml.y });
  step('minerals-below-credits', ml.y > cl.y, { min: ml.y, cred: cl.y });

  // The hold BAR: below its label, inside the screen.
  const mh = hud.mineralHud;
  step('minerals-bar',
    Number.isFinite(mh.barX) && Number.isFinite(mh.barY)
      && mh.barY > ml.y && mh.barX + mh.barW <= W,
    { barX: mh.barX, barY: mh.barY, barW: mh.barW });

  // Rendered ABOVE the shop clip (the video is depth 10; the HUD is 30).
  step('hud-above-clip', (cl.depth ?? 0) >= 30, { depth: cl.depth });

  // 6 — A TRADE: sell the bay, confirm → the credits line moves (the
  // count-up settles on the new ledger; the minerals line is untouched).
  const sv = ss.shopView;
  sv.setTab('trade');
  await sleep(600); // the slide-in
  sv.sellGrid.toggleBay(0);
  const pv = sv.preview();
  const expectCredits = gs.ship.credits + pv.sellTotal;
  step('trade-confirmed', sv.confirm() === true, { sell: pv.sellTotal });
  step('ledger-moved', gs.ship.credits === expectCredits,
    { credits: gs.ship.credits, want: expectCredits });
  // The count-up is a ~420 ms tween — poll until it settles on the new ledger.
  const wantC2 = `CREDITS  ${expectCredits.toLocaleString('en-US')}`;
  await waitFor(() => cl.text === wantC2);
  step('hud-follows-trade', cl.text === wantC2,
    { text: cl.text, want: expectCredits });
  step('minerals-untouched', ml.text === expectM, { text: ml.text });

  // 7 — LEAVE SHOP: the readout dies with the shop view.
  ss.leaveShop();
  await sleep(100);
  step('hud-torn-down', ss.shopHud === null && ss.shopView === null,
    { hud: ss.shopHud, view: ss.shopView });
  const kids = ss.sys.displayList?.getChildren?.() ?? [];
  step('labels-destroyed',
    !kids.includes(cl) && !kids.includes(ml),
    { clIn: kids.includes(cl), mlIn: kids.includes(ml) });

  window.__SHOP_HUD_TEST__ = { pass: true, steps: window.__STEPS__ ?? [] };
  console.info('[shop-hud] PASS:', (window.__STEPS__ ?? []).join(' → '));
})().catch((err) => fail(String(err && err.message || err)));