import {
  MASS_HAUL_BALANCE_KEY,
  MASS_HAUL_DEFAULT_VISIBLE,
  normalizeVisibleBasis,
} from "@util/common_util_mass_haul";
import { MASS_HAUL_HEIGHT, MASS_HAUL_MIN_HEIGHT } from "@util/common_util_mass_haul_view";
import { LONG_HEIGHT } from "./B06_Section_UI_Section_Common";

export const PANEL_CHROME_PX = 102;
export const BASE_PANEL_HEIGHT = LONG_HEIGHT + MASS_HAUL_HEIGHT + PANEL_CHROME_PX;
export const MIN_LONG_HEIGHT = 110;
export const MIN_PANEL_HEIGHT = MIN_LONG_HEIGHT + MASS_HAUL_MIN_HEIGHT + PANEL_CHROME_PX;
export const MAX_PANEL_HEIGHT_RATIO = 0.8;
export const PANEL_HEIGHT_KEY = "b06:profile-panel-height";
export const PANEL_COLLAPSED_KEY = "b06:profile-panel-collapsed";
export const MASS_HAUL_VISIBLE_KEY = "b06:masshaul-visible-v4";

const DEFAULT_VISIBLE_KEYS = [...MASS_HAUL_DEFAULT_VISIBLE, MASS_HAUL_BALANCE_KEY];

export function readVisibleSeries(): Set<string> {
  try {
    const raw = sessionStorage.getItem(MASS_HAUL_VISIBLE_KEY);
    if (!raw) return new Set(DEFAULT_VISIBLE_KEYS);
    const parsed: unknown = JSON.parse(raw);
    return Array.isArray(parsed)
      ? normalizeVisibleBasis(new Set(parsed.map(String)))
      : new Set(DEFAULT_VISIBLE_KEYS);
  } catch {
    return new Set(DEFAULT_VISIBLE_KEYS);
  }
}

export function chartHeights(availableHeightPx: number): { long: number; mass: number } {
  if (!Number.isFinite(availableHeightPx) || availableHeightPx <= 0) {
    return { long: LONG_HEIGHT, mass: MASS_HAUL_HEIGHT };
  }
  const available = Math.max(availableHeightPx, MIN_LONG_HEIGHT + MASS_HAUL_MIN_HEIGHT);
  if (available >= LONG_HEIGHT + MASS_HAUL_HEIGHT) {
    return { long: LONG_HEIGHT, mass: available - LONG_HEIGHT };
  }
  const ratio = available / (LONG_HEIGHT + MASS_HAUL_HEIGHT);
  const mass = Math.min(
    Math.max(MASS_HAUL_MIN_HEIGHT, Math.round(MASS_HAUL_HEIGHT * ratio)),
    available - MIN_LONG_HEIGHT,
  );
  return { long: available - mass, mass };
}

export function unwrapChart(node: HTMLElement): Element {
  return node.classList.contains("b06-section__chart-wrap") && node.firstElementChild
    ? node.firstElementChild
    : node;
}