import Service from '@ember/service';
import service from 'consul-ui/sort/comparators/service';
import serviceInstance from 'consul-ui/sort/comparators/service-instance';
import upstreamInstance from 'consul-ui/sort/comparators/upstream-instance';
import kv from 'consul-ui/sort/comparators/kv';
import check from 'consul-ui/sort/comparators/check';
import intention from 'consul-ui/sort/comparators/intention';
import token from 'consul-ui/sort/comparators/token';
import role from 'consul-ui/sort/comparators/role';
import policy from 'consul-ui/sort/comparators/policy';
import nspace from 'consul-ui/sort/comparators/nspace';
import node from 'consul-ui/sort/comparators/node';

// returns an array of Property:asc, Property:desc etc etc
const directionify = arr => {
  return arr.reduce((prev, item) => prev.concat([`${item}:asc`, `${item}:desc`]), []);
};
// Specify a list of sortable properties, when called with a property
// returns an array ready to be passed to ember @sort
// properties(['Potential', 'Sortable', 'Properties'])('Sortable:asc') => ['Sortable:asc']
const properties = (props = []) => key => {
  const comparables = directionify(props);
  return [comparables.find(item => item === key) || comparables[0]];
};
const options = {
  properties,
  directionify,
};
const comparators = {
  service: service(options),
  serviceInstance: serviceInstance(options),
  ['upstream-instance']: upstreamInstance(options),
  kv: kv(options),
  check: check(options),
  intention: intention(options),
  token: token(options),
  role: role(options),
  policy: policy(options),
  nspace: nspace(options),
  node: node(options),
};
export default class SortService extends Service {
  comparator(type) {
    return comparators[type];
  }
}