/* eslint-disable ember/no-incorrect-calls-with-inline-anonymous-functions */
import { alias, readOnly } from '@ember/object/computed';
import { inject as service } from '@ember/service';
import Controller, { inject as controller } from '@ember/controller';
import { action, computed } from '@ember/object';
import { scheduleOnce } from '@ember/runloop';
import intersection from 'lodash.intersection';
import SortableFactory from 'nomad-ui/mixins/sortable-factory';
import Searchable from 'nomad-ui/mixins/searchable';
import { serialize, deserializedQueryParam as selection } from 'nomad-ui/utils/qp-serialize';
import classic from 'ember-classic-decorator';

@classic
export default class IndexController extends Controller.extend(
    SortableFactory(['id', 'name', 'compositeStatus', 'datacenter', 'version']),
    Searchable
  ) {
  @service userSettings;
  @controller('clients') clientsController;

  @alias('model.nodes') nodes;
  @alias('model.agents') agents;

  queryParams = [
    {
      currentPage: 'page',
    },
    {
      searchTerm: 'search',
    },
    {
      sortProperty: 'sort',
    },
    {
      sortDescending: 'desc',
    },
    {
      qpClass: 'class',
    },
    {
      qpState: 'state',
    },
    {
      qpDatacenter: 'dc',
    },
    {
      qpVersion: 'version',
    },
    {
      qpVolume: 'volume',
    },
  ];

  currentPage = 1;
  @readOnly('userSettings.pageSize') pageSize;

  sortProperty = 'modifyIndex';
  sortDescending = true;

  @computed
  get searchProps() {
    return ['id', 'name', 'datacenter'];
  }

  qpClass = '';
  qpState = '';
  qpDatacenter = '';
  qpVersion = '';
  qpVolume = '';

  @selection('qpClass') selectionClass;
  @selection('qpState') selectionState;
  @selection('qpDatacenter') selectionDatacenter;
  @selection('qpVersion') selectionVersion;
  @selection('qpVolume') selectionVolume;

  @computed('nodes.[]', 'selectionClass')
  get optionsClass() {
    const classes = Array.from(new Set(this.nodes.mapBy('nodeClass')))
      .compact()
      .without('');

    // Remove any invalid node classes from the query param/selection
    scheduleOnce('actions', () => {
      // eslint-disable-next-line ember/no-side-effects
      this.set('qpClass', serialize(intersection(classes, this.selectionClass)));
    });

    return classes.sort().map(dc => ({ key: dc, label: dc }));
  }

  @computed
  get optionsState() {
    return [
      { key: 'initializing', label: 'Initializing' },
      { key: 'ready', label: 'Ready' },
      { key: 'down', label: 'Down' },
      { key: 'ineligible', label: 'Ineligible' },
      { key: 'draining', label: 'Draining' },
    ];
  }

  @computed('nodes.[]', 'selectionDatacenter')
  get optionsDatacenter() {
    const datacenters = Array.from(new Set(this.nodes.mapBy('datacenter'))).compact();

    // Remove any invalid datacenters from the query param/selection
    scheduleOnce('actions', () => {
      // eslint-disable-next-line ember/no-side-effects
      this.set('qpDatacenter', serialize(intersection(datacenters, this.selectionDatacenter)));
    });

    return datacenters.sort().map(dc => ({ key: dc, label: dc }));
  }

  @computed('nodes.[]', 'selectionVersion')
  get optionsVersion() {
    const versions = Array.from(new Set(this.nodes.mapBy('version'))).compact();

    // Remove any invalid versions from the query param/selection
    scheduleOnce('actions', () => {
      // eslint-disable-next-line ember/no-side-effects
      this.set('qpVersion', serialize(intersection(versions, this.selectionVersion)));
    });

    return versions.sort().map(v => ({ key: v, label: v }));
  }

  @computed('nodes.[]', 'selectionVolume')
  get optionsVolume() {
    const flatten = (acc, val) => acc.concat(val.toArray());

    const allVolumes = this.nodes.mapBy('hostVolumes').reduce(flatten, []);
    const volumes = Array.from(new Set(allVolumes.mapBy('name')));

    scheduleOnce('actions', () => {
      // eslint-disable-next-line ember/no-side-effects
      this.set('qpVolume', serialize(intersection(volumes, this.selectionVolume)));
    });

    return volumes.sort().map(volume => ({ key: volume, label: volume }));
  }

  @computed(
    'nodes.[]',
    'selectionClass',
    'selectionState',
    'selectionDatacenter',
    'selectionVersion',
    'selectionVolume'
  )
  get filteredNodes() {
    const {
      selectionClass: classes,
      selectionState: states,
      selectionDatacenter: datacenters,
      selectionVersion: versions,
      selectionVolume: volumes,
    } = this;

    const onlyIneligible = states.includes('ineligible');
    const onlyDraining = states.includes('draining');

    // states is a composite of node status and other node states
    const statuses = states.without('ineligible').without('draining');

    return this.nodes.filter(node => {
      if (classes.length && !classes.includes(node.get('nodeClass'))) return false;
      if (statuses.length && !statuses.includes(node.get('status'))) return false;
      if (datacenters.length && !datacenters.includes(node.get('datacenter'))) return false;
      if (versions.length && !versions.includes(node.get('version'))) return false;
      if (volumes.length && !node.hostVolumes.find(volume => volumes.includes(volume.name)))
        return false;

      if (onlyIneligible && node.get('isEligible')) return false;
      if (onlyDraining && !node.get('isDraining')) return false;

      return true;
    });
  }

  @alias('filteredNodes') listToSort;
  @alias('listSorted') listToSearch;
  @alias('listSearched') sortedNodes;

  @alias('clientsController.isForbidden') isForbidden;

  setFacetQueryParam(queryParam, selection) {
    this.set(queryParam, serialize(selection));
  }

  @action
  gotoNode(node) {
    this.transitionToRoute('clients.client', node);
  }
}