/**
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
import * as journalEntry from './journal-entry.actions';
import {JournalEntry} from '../../../../services/accounting/domain/journal-entry.model';


export interface State {
  ids: string[];
  entities: { [id: string]: JournalEntry };
  loading: boolean;
  startDate: string;
  endDate: string;
}

const initialState: State = {
  ids: [],
  entities: {},
  loading: false,
  startDate: null,
  endDate: null
};

export function reducer(state = initialState, action: journalEntry.Actions): State {

  switch (action.type) {

    case journalEntry.SEARCH: {
      const payload = action.payload;

      return Object.assign({}, state, {
        startDate: payload.startDate,
        endDate: payload.endDate,
        loading: true
      });
    }

    case journalEntry.SEARCH_COMPLETE: {
      const journalEntries = action.payload;

      const journalEntryIds = journalEntries.map(journalEntry => journalEntry.transactionIdentifier);

      const newJournalEntryEntities = journalEntries.reduce((entities: { [id: string]: JournalEntry }, journalEntry: JournalEntry) => {
        return Object.assign(entities, {
          [journalEntry.transactionIdentifier]: journalEntry
        });
      }, {});

      return {
        ids: [ ...journalEntryIds ],
        entities: newJournalEntryEntities,
        startDate: state.startDate,
        endDate: state.endDate,
        loading: false
      };
    }

    default: {
      return state;
    }
  }
}


export const getIds = (state: State) => state.ids;

export const getEntities = (state: State) => state.entities;

export const getStartDate = (state: State) => state.startDate;

export const getEndDate = (state: State) => state.endDate;

export const getLoading = (state: State) => state.loading;