// Vrai-Prix — groupes de types d'annonces Immo-Ka (module PUR : importable côté client).
export type TypeGroupKey =
  | "maison"
  | "condo"
  | "plex"
  | "terrain"
  | "chalet"
  | "fermette"
  | "mobile"
  | "commercial"
  | "autre";

export const TYPE_GROUPS: { key: TypeGroupKey; fr: string; en: string }[] = [
  { key: "maison", fr: "Maison", en: "House" },
  { key: "condo", fr: "Condo", en: "Condo" },
  { key: "plex", fr: "Plex", en: "Plex" },
  { key: "terrain", fr: "Terrain", en: "Land" },
  { key: "chalet", fr: "Chalet", en: "Cottage" },
  { key: "fermette", fr: "Fermette / agricole", en: "Hobby farm" },
  { key: "mobile", fr: "Maison mobile", en: "Mobile home" },
  { key: "commercial", fr: "Commercial", en: "Commercial" },
  { key: "autre", fr: "Autre", en: "Other" },
];

const fold = (s: string | null | undefined) =>
  (s ?? "")
    .normalize("NFD")
    .replace(/[\u0300-\u036f]/g, "")
    .toLowerCase()
    .trim();

/** Type Immo-Ka (libre, sale) → groupe stable. Même logique que typeBucket du pipeline. */
export function typeGroup(pt: string | null): TypeGroupKey {
  const t = fold(pt);
  if (!t) return "autre";
  if (t.includes("condo")) return "condo";
  if (/(du|tri|quadru|multi)plex/.test(t) || t.includes("plex")) return "plex";
  if (t.includes("terrain") || t === "lot") return "terrain";
  if (t.includes("commerc") || t.includes("industri") || t.includes("bureau") || t.includes("service"))
    return "commercial";
  if (t.includes("chalet") || t.includes("recreativ")) return "chalet";
  if (t.includes("ferme") || t.includes("agric")) return "fermette";
  if (t.includes("mobile") || t.includes("roulotte")) return "mobile";
  if (
    t.includes("maison") ||
    t.includes("jumel") ||
    t.includes("detach") ||
    t.includes("residen") ||
    t === "propriete" ||
    t.includes("bungalow") ||
    t.includes("cottage")
  )
    return "maison";
  return "autre";
}

/** groupe → type_prop du rôle (moteur) pour un sujet sans unité jumelée. */
export function groupToTypeProp(g: TypeGroupKey): string {
  switch (g) {
    case "condo":
      return "condo_ou_multi";
    case "plex":
      return "plex";
    case "terrain":
      return "terrain";
    case "chalet":
      return "chalet";
    case "mobile":
      return "maison_mobile";
    case "commercial":
      return "autre";
    default:
      return "unifamilial";
  }
}

export function groupLabel(key: string, fr: boolean): string {
  const g = TYPE_GROUPS.find((x) => x.key === key);
  return g ? (fr ? g.fr : g.en) : key;
}