/**
 * 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 fromCustomer from '../../store';
import * as fromCases from './cases.reducer';
import * as fromCaseForm from './form.reducer';
import * as fromCaseTasks from './tasks/tasks.reducer';
import * as fromCasePayments from './payments/search.reducer';
import * as fromCaseDocuments from './documents/documents.reducer'
import * as fromCaseDocumentPages from './documents/pageNumber.reducer'

import {ActionReducer, Store} from '@ngrx/store';
import {createReducer} from '../../../store/index';
import {createSelector} from 'reselect';
import {
  createResourceReducer,
  getResourceAll,
  getResourceEntities,
  getResourceIds,
  getResourceLoadedAt,
  getResourceSelected,
  getResourceSelectedId,
  ResourceState
} from '../../../common/store/resource.reducer';
import {
  createSearchReducer,
  getSearchEntities,
  getSearchTotalElements,
  getSearchTotalPages,
  SearchState
} from '../../../common/store/search.reducer';
import {createFormReducer, getFormError} from '../../../common/store/form.reducer';

export interface State extends fromCustomer.State {
  cases: ResourceState;
  caseForm: fromCaseForm.State;
  caseSearch: SearchState;
  caseTasks: fromCaseTasks.State;
  casePayments: fromCasePayments.State;
  caseDocuments: ResourceState;
  caseDocumentPages: fromCaseDocumentPages.State;
}

const reducers = {
  cases: createResourceReducer('Case', fromCases.reducer),
  caseForm: createFormReducer('Case', fromCaseForm.reducer),
  caseSearch: createSearchReducer('Case'),
  caseTasks: fromCaseTasks.reducer,
  casePayments: fromCasePayments.reducer,
  caseDocuments: createResourceReducer('Case Document', fromCaseDocuments.reducer),
  caseDocumentPages: fromCaseDocumentPages.reducer
};

export const caseModuleReducer: ActionReducer<State> = createReducer(reducers);

export class CasesStore extends Store<State> {}

export function caseStoreFactory(appStore: Store<fromCustomer.State>) {
  appStore.replaceReducer(caseModuleReducer);
  return appStore;
}

export const getCaseSearchState = (state: State) => state.caseSearch;

export const getSearchCases = createSelector(getCaseSearchState, getSearchEntities);
export const getCaseSearchTotalElements = createSelector(getCaseSearchState, getSearchTotalElements);
export const getCaseSearchTotalPages = createSelector(getCaseSearchState, getSearchTotalPages);

export const getCaseSearchResults = createSelector(getSearchCases, getCaseSearchTotalPages, getCaseSearchTotalElements,
  (cases, totalPages, totalElements) => {
  return {
    cases: cases,
    totalPages: totalPages,
    totalElements: totalElements
  };
});

export const getCasesState = (state: State) => state.cases;

export const getCaseEntities = createSelector(getCasesState, getResourceEntities);
export const getCasesLoadedAt = createSelector(getCasesState, getResourceLoadedAt);
export const getCaseIds = createSelector(getCasesState, getResourceIds);
export const getSelectedCaseId = createSelector(getCasesState, getResourceSelectedId);
export const getSelectedCase = createSelector(getCasesState, getResourceSelected);

export const getCaseTasksState = (state: State) => state.caseTasks;

export const getCaseCommands = createSelector(getCaseTasksState, fromCaseTasks.getCommands);


export const getCasePaymentsSearchState = (state: State) => state.casePayments;

export const getSearchCasePaymentPage = createSelector(getCasePaymentsSearchState, fromCasePayments.getPaymentPage);

export const getCaseFormState = (state: State) => state.caseForm;
export const getCaseFormError = createSelector(getCaseFormState, getFormError);

export const getCaseFormProduct = createSelector(getCaseFormState, fromCaseForm.getFormProduct);

export const getCaseSelection = createSelector(getSelectedCase, fromCustomer.getSelectedCustomer, (caseInstance, customer) => {
  return {
    customerId: customer.identifier,
    productId: caseInstance.productIdentifier,
    caseId: caseInstance.identifier
  }
});

/**
 * Case Document Selectors
 */
export const getCaseDocumentsState = (state: State) => state.caseDocuments;

export const getAllCaseDocumentEntities = createSelector(getCaseDocumentsState, getResourceAll);

export const getCaseDocumentLoadedAt = createSelector(getCaseDocumentsState, getResourceLoadedAt);
export const getSelectedCaseDocument = createSelector(getCaseDocumentsState, getResourceSelected);

/**
 * Case Document Selectors
 */
export const getDocumentPagesState = (state: State) => state.caseDocumentPages;

export const getAllDocumentPages = createSelector(getDocumentPagesState, fromCaseDocumentPages.getPageNumbers);