import { BUNKER_ADJUSTMENT } from 'app/modules/bunkerAdjustment/store/bunkerAdjustment.constants';
import { AnyAction } from 'redux';
import { BunkerAdjustmentState } from './bunkerAdjustment.types';

export const defaultBunkerAdjustment: BunkerAdjustmentState = {
  periods: [],
  currentPeriod: '',
  keyFigures: null,
  calculations: {
    consumption: null,
    summary: null,
  },
  trends: [],
};

const bunkerAdjustmentReducer = (state = defaultBunkerAdjustment, action: AnyAction = { type: '' }) => {
  switch (action.type) {
    case BUNKER_ADJUSTMENT.FETCH_AVAILABILITY_SUCCESS:
      return {
        ...state,
        periods: action.payload,
      };
    case BUNKER_ADJUSTMENT.SET_CURRENT_PERIOD:
      return {
        ...state,
        currentPeriod: action.payload,
      };
    case BUNKER_ADJUSTMENT.RESET_BUNKER_ADJUSTMENT:
      return {
        ...defaultBunkerAdjustment,
      };
    case BUNKER_ADJUSTMENT.FETCH_FIGURES_REQUEST:
      return {
        ...state,
        keyFigures: defaultBunkerAdjustment.keyFigures,
        calculations: {
          consumption: defaultBunkerAdjustment.calculations.consumption,
          summary: defaultBunkerAdjustment.calculations.summary,
        },
      };
    case BUNKER_ADJUSTMENT.FETCH_FIGURES_SUCCESS:
      return {
        ...state,
        keyFigures: action.payload.keyFigures,
        calculations: {
          consumption: action.payload.consumption,
          summary: action.payload.summary,
        },
      };
    case BUNKER_ADJUSTMENT.FETCH_TRENDS_REQUEST:
      return {
        ...state,
        trends: defaultBunkerAdjustment.trends,
      };
    case BUNKER_ADJUSTMENT.FETCH_TRENDS_SUCCESS:
      return {
        ...state,
        trends: action.payload,
      };
    default:
      return state;
  }
};

export { bunkerAdjustmentReducer };