/** Turning ids into the words printed on the panel and in combo lines. */
import { CTX, GNAME, GROUPS, L } from "./labels";
import type { ContextCode, ControlId, Entry, GroupId, RawEntry } from "./types";

const GROUP_IDS: ReadonlySet<string> = new Set(Object.keys(GROUPS));

/** Name of a single control: `"shift"` becomes `"SHIFT"`. */
export function controlName(id: ControlId): string {
  return L[id] ?? id;
}

/**
 * Name of whatever an entry targets: one control, a group ("PAD 1–16"), or an
 * explicit list joined with a slash.
 */
export function targetName(target: RawEntry[1]): string {
  if (Array.isArray(target)) return target.map(controlName).join(" / ");
  if (GROUP_IDS.has(target)) return GNAME[target as GroupId];
  return controlName(target);
}

export function contextNames(ctx: readonly ContextCode[]): string[] {
  return ctx.map((c) => CTX[c]);
}

/** The combo as its parts: modifiers first, then the target. */
export function comboParts(entry: Entry): string[] {
  return [...entry.mods.map(controlName), targetName(entry.target)];
}

/** The combo as one line: `"SHIFT + PAD 1"`. */
export function comboText(entry: Entry): string {
  return comboParts(entry).join(" + ");
}