'use client';

import { useMemo } from 'react';

import { useAppStore } from '@/store/app.store';

export type PermissionInput = string | undefined;

export function hasPermissionValue({
  grantedPermissions,
  permissions,
}: {
  grantedPermissions: string[];
  permissions: PermissionInput;
}) {
  if (!permissions) return true;

  const normalizedPermissions = new Set(
    grantedPermissions.map((permission) => permission.toLowerCase()),
  );

  return normalizedPermissions.has(permissions.toLowerCase());
}

function hasAnyPermissionValue({
  grantedPermissions,
  permissions,
}: {
  grantedPermissions: string[];
  permissions: PermissionInput[];
}) {
  if (permissions.length === 0) return true;

  return permissions.some((permission) =>
    hasPermissionValue({ grantedPermissions, permissions: permission }),
  );
}

export function usePermissions() {
  const grantedPermissions = useAppStore((state) => state.permissions);

  return useMemo(
    () => ({
      grantedPermissions,
      hasPermission: (permissions: PermissionInput) =>
        hasPermissionValue({
          grantedPermissions,
          permissions,
        }),
      hasAnyPermission: (permissions: PermissionInput[]) =>
        hasAnyPermissionValue({ grantedPermissions, permissions }),
    }),
    [grantedPermissions],
  );
}