import moment from 'moment';
import { MaerskApiClient } from '../../../common/clients/maerskApi.client';
import { map } from 'rxjs/operators';
import {
  BunkerAdjustmentPeriod,
} from '../store/bunkerAdjustment.types';

export class BunkerAdjustmentService {
  private apiClient: MaerskApiClient;

  constructor(apiClient) {
    this.apiClient = apiClient;
  }

  getAvailability = (poolId: number, vesselCode: string, partnerAxCode: string) => {
    return this.apiClient.getBunkerAdjustmentAvailability(poolId, vesselCode, partnerAxCode).pipe(
      map((bunkerAdjustmentAvailability) => this.mapPeriods(bunkerAdjustmentAvailability.availableMonths))
    );
  }

  getTrends = (poolId: number, vesselCode: string, partnerAxCode: string) => {
    return this.apiClient.getBunkerAdjustmentTrend(poolId, vesselCode, partnerAxCode);
  }

  getFigures = (poolId: number, vesselCode: string, date: string, partnerAxCode: string) => {
    return this.apiClient.getBunkerAdjustmentFigures(poolId, vesselCode, date, partnerAxCode);
  }

  mapPeriods = (periods: BunkerAdjustmentPeriod[]) => {
    return [ ...periods.map(period => ({
      date: period.date,
      isActive: period.isActive,
    })) ].sort(this.comparePeriods);
  }

  comparePeriods = (a?: BunkerAdjustmentPeriod, b?: BunkerAdjustmentPeriod) => {
    if (a && b) {
      return moment(a.date).isAfter(b.date) ? -1 : 1;
    }
    return 0;
  }
}