import { Quote, TariffWithId } from '../common/entities/Quote';
import { TariffId, Utility } from '../common/entities/Enums';
import { QuoteService } from '../common/services/QuoteService';
import { ModalService } from '../common/services/ModalService';
import { UserDataState } from '../common/state/UserDataState';

import tilModalOptions from '../common/modals/TILModal';
import * as _ from 'lodash';

const ONLINE_DISCOUNT_AMOUNT = 30;

export class QuoteController {
  quote: Quote;
  onlineDiscountAmount: number;
  loading: boolean;
  showSavings: boolean;
  tariffs: TariffWithId[];
  selectedTariffMobile: number;

  constructor(private $state: angular.ui.IStateService, quoteService: QuoteService, private $scope: ng.IScope, private modal: ModalService, private userDataState: UserDataState) {
    this.loading = true;
    this.selectedTariffMobile = 0;

    quoteService.getQuote().then(
      quote => {
        this.quote = quote;
        this.showSavings = Object.keys(quote.tariffs).map(tariffId => quote.tariffs[tariffId]).every(tariff => tariff.expectedAnnualSavings > 0);
        // Need to convert object into an array so we can guarantee the ordering of tariffs
        this.tariffs = _.sortBy((Object.keys(quote.tariffs) as TariffId[]).map(id => ({ id, ...(quote.tariffs[id]) })), t => t.expectedAnnualSpend);

        // TODO there has to be a better way of getting this info than storing the discount amount in the FE
        this.onlineDiscountAmount = ONLINE_DISCOUNT_AMOUNT * (quote.fuel === 'Dual' ? 2 : 1);
        this.loading = false;
      },
      error => $state.go('^.get-quote')
    )
  }

  scrollToTariff(index: number) {
    this.selectedTariffMobile = index;
    // Irritating that we need to explicitly call the digest cycle but this is because of how the scroll functionality is implemented
    this.$scope.$digest();
  }

  // This controller is only used for PAYM
  selectTariff(tariffId: TariffId) {
    this.userDataState.tariffId = tariffId;
    this.$state.go('^.plan');
  }

  openTilModal(tariffId: TariffId, utility: Utility) {
    this.modal.open(tilModalOptions({
      tariff: this.quote.tariffs[tariffId],
      til: this.quote.tariffs[tariffId].tils[utility],
      serviceType: this.quote.serviceType,
      utility: utility
    }));
  }
}