import type { Privilege } from "@/types/models/privilege.type";
import type { GetAllPrivilegiesFormat, RawPrivilege } from "./types";

export const validatePrivilege = (privilege: RawPrivilege): Error | null => {
  const typeValues: typeof privilege.type[] = ["count", "day", "full"];

  if (!typeValues.includes(privilege.type)) {
    return new Error("invalid <type> value");
  }

  if (isNaN(Number(privilege.price))) {
    return new Error("price must be a number");
  }

  return null;
};

export const defineGetAllPrivilegiesFormat = (query?: string): GetAllPrivilegiesFormat => {
  if (!query) {
    return "array";
  }

  const formats: GetAllPrivilegiesFormat[] = ["array", "map"];
  const findedFormat = formats.find((format) => query === format);

  if (!findedFormat) {
    return "array";
  }

  return findedFormat;
};

export const convertPrivilegiesToMap = (privilegies: Privilege[]) => {
  return privilegies.reduce<Record<string, Privilege[]>>((accamulator, privilege) => {
    if (!accamulator[privilege.serviceKey]) {
      accamulator[privilege.serviceKey] = [];
    }

    accamulator[privilege.serviceKey].push(privilege);

    return accamulator;
  }, {});
};