/** Les catégories d’actions proposées dans les règles d’automatisme. */
export const AUTOMATION_ACTION_FILTERS = [
  { value: "all", label: "Toutes les actions" },
  { value: "typeAchat", label: "Type d’achat" },
  { value: "serviceConcerne", label: "Service concerné" },
  { value: "ventilationComptable", label: "Ventilation comptable" },
  { value: "subscription", label: "Abonnement (Oui ou Non)" },
  { value: "subscriptionYes", label: "Abonnement : Oui" },
  { value: "subscriptionNo", label: "Abonnement : Non" },
] as const;

export type AutomationActionFilter = (typeof AUTOMATION_ACTION_FILTERS)[number]["value"];

type RuleActions = Record<string, unknown>;

/**
 * Lit défensivement le JSON stocké en base : une règle historique invalide ne
 * doit jamais empêcher l’affichage ni le filtrage de la liste complète.
 */
function parseRuleActions(actionsJson: string): RuleActions {
  try {
    const parsed: unknown = JSON.parse(actionsJson);
    return parsed !== null && typeof parsed === "object" && !Array.isArray(parsed)
      ? parsed as RuleActions
      : {};
  } catch {
    return {};
  }
}

function getSubscriptionValue(actions: RuleActions): 0 | 1 | undefined {
  const value = actions.isSubscription;
  if (value === 1 || value === "1" || value === "OUI") return 1;
  if (value === 0 || value === "0" || value === "NON") return 0;
  return undefined;
}

/** Retourne si les actions JSON d’une règle correspondent au filtre choisi. */
export function matchesAutomationActionFilter(
  actionsJson: string,
  filter: AutomationActionFilter,
): boolean {
  if (filter === "all") return true;

  const actions = parseRuleActions(actionsJson);
  if (filter === "subscription") return Object.hasOwn(actions, "isSubscription");
  if (filter === "subscriptionYes") return getSubscriptionValue(actions) === 1;
  if (filter === "subscriptionNo") return getSubscriptionValue(actions) === 0;

  return typeof actions[filter] === "string" && actions[filter].trim().length > 0;
}