Hack23/cia

/*
 * Copyright 2010-2021 James Pether Sörling
 *
 * Licensed 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.
 *
 *    $Id$
 *  $HeadURL$
*/
package com.hack23.cia.service.external.esv.impl;

import java.io.IOException;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.HashSet;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.stream.Collectors;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;

import com.hack23.cia.service.external.esv.api.EsvApi;
import com.hack23.cia.service.external.esv.api.GovernmentBodyAnnualOutcomeSummary;
import com.hack23.cia.service.external.esv.api.GovernmentBodyAnnualSummary;
import com.hack23.cia.service.external.esv.api.GovernmentOperationPeriodOutcome;

/**
 * The Class EsvApiImpl.
 */
@Component
final class EsvApiImpl implements EsvApi {

    /** The Constant GET_GOVERNMENT_BODY_REPORT. */
    private static final String GET_GOVERNMENT_BODY_REPORT = "getGovernmentBodyReport";

    /** The Constant GET_REPORT. */
    private static final String GET_REPORT = "getReport";

    /** The Constant LOGGER. */
    private static final Logger LOGGER = LoggerFactory
            .getLogger(EsvApiImpl.class);

    /** The Constant NO_MINISTRY. */
    private static final String NO_MINISTRY = "Inget departement";

    /** The esv excel reader. */
    private final EsvExcelReader esvExcelReader;

    /** The esv government operations excel reader. */
    private final EsvGovernmentOperationsExcelReader esvGovernmentOperationsExcelReader;

    /** The esv government body operation outcome reader. */
    private final EsvGovernmentBodyOperationOutcomeReader esvGovernmentBodyOperationOutcomeReader;

    /** The all data. */
    private Map<Integer, List<GovernmentBodyAnnualSummary>> allData;

    /**
     * Instantiates a new esv api impl.
     *
     * @param esvExcelReader                          the esv excel reader
     * @param esvGovernmentOperationsExcelReader      the esv government operations
     *                                                excel reader
     * @param esvGovernmentBodyOperationOutcomeReader the esv government body
     *                                                operation outcome reader
     */
    @Autowired
    public EsvApiImpl(final EsvExcelReader esvExcelReader,final EsvGovernmentOperationsExcelReader esvGovernmentOperationsExcelReader,final EsvGovernmentBodyOperationOutcomeReader esvGovernmentBodyOperationOutcomeReader) {
        super();
        this.esvExcelReader = esvExcelReader;
        this.esvGovernmentOperationsExcelReader = esvGovernmentOperationsExcelReader;
        this.esvGovernmentBodyOperationOutcomeReader = esvGovernmentBodyOperationOutcomeReader;
    }

    @Override
    public synchronized Map<Integer, List<GovernmentBodyAnnualSummary>> getData() {
      if (allData == null) {
        allData = esvExcelReader.getDataPerMinistry(null);
      }
      return allData;
    }

    @Override
    public Map<Integer, List<GovernmentBodyAnnualSummary>> getDataPerMinistry(final String name) {
        return esvExcelReader.getDataPerMinistry(name);
    }

    @Override
    public List<GovernmentBodyAnnualSummary> getDataPerMinistryAndYear(final String name, final int year) {
        final Map<Integer, List<GovernmentBodyAnnualSummary>> map = getDataPerMinistry(name);

        final List<GovernmentBodyAnnualSummary> list = map.get(year);
        if (list != null) {
            return list;
        } else {
            return new ArrayList<>();
        }
    }

    @Override
    public List<String> getGovernmentBodyNames() {
        final Set<String> governmentBodyNameSet = new HashSet<>();

        final Map<Integer, List<GovernmentBodyAnnualSummary>> data = getData();

        for (final List<GovernmentBodyAnnualSummary> list : data.values()) {
            for (final GovernmentBodyAnnualSummary governmentBodyAnnualSummary : list) {
                if (!governmentBodyNameSet.contains(governmentBodyAnnualSummary.getName())
                        && governmentBodyAnnualSummary.getHeadCount() > 0) {
                    governmentBodyNameSet.add(governmentBodyAnnualSummary.getName());
                }
            }
        }
        return new ArrayList<>(governmentBodyNameSet);
    }

    @Override
    public List<String> getGovernmentBodyNames(final String ministry) {
        final Map<String, Set<String>> governmentBodyNameSetMinistryMap = new HashMap<>();

        final Set<String> governmentBodyNameSetMapEntry = new HashSet<>();
        governmentBodyNameSetMinistryMap.put(ministry, governmentBodyNameSetMapEntry);

        final Map<Integer, List<GovernmentBodyAnnualSummary>> data = getData();

        for (final List<GovernmentBodyAnnualSummary> list : data.values()) {
            for (final GovernmentBodyAnnualSummary governmentBodyAnnualSummary : list) {
                if (ministry.equalsIgnoreCase(governmentBodyAnnualSummary.getMinistry())
                        && !governmentBodyNameSetMapEntry.contains(governmentBodyAnnualSummary.getName())
                        && governmentBodyAnnualSummary.getHeadCount() > 0) {
                    governmentBodyNameSetMapEntry.add(governmentBodyAnnualSummary.getName());
                }
            }
        }
        return new ArrayList<>(governmentBodyNameSetMinistryMap.get(ministry));
    }

    @Override
    public List<String> getMinistryNames() {
        final Set<String> ministryNameSet = new HashSet<>();

        final Map<Integer, List<GovernmentBodyAnnualSummary>> data = getData();

        for (final List<GovernmentBodyAnnualSummary> list : data.values()) {
            for (final GovernmentBodyAnnualSummary governmentBodyAnnualSummary : list) {
                if (!ministryNameSet.contains(governmentBodyAnnualSummary.getMinistry())
                        && governmentBodyAnnualSummary.getHeadCount() > 0
                        && !NO_MINISTRY.equalsIgnoreCase(governmentBodyAnnualSummary.getMinistry())) {
                    ministryNameSet.add(governmentBodyAnnualSummary.getMinistry());
                }
            }
        }
        return new ArrayList<>(ministryNameSet);
    }

    @Override
    public Map<Integer, GovernmentBodyAnnualSummary> getDataPerGovernmentBody(final String name) {
        return esvExcelReader.getDataPerGovernmentBody(name);
    }

    @Override
    public Map<String,List<GovernmentOperationPeriodOutcome>> getReport() {
        try {
            return esvGovernmentOperationsExcelReader.getReport().stream().collect(Collectors.groupingBy(GovernmentOperationPeriodOutcome::getVariableName));
        } catch (final IOException e) {
            LOGGER.error(GET_REPORT,e);
            return new HashMap<>();
        }
    }

    @Override
    public Map<String, List<GovernmentBodyAnnualOutcomeSummary>> getGovernmentBodyReport() {
        final List<GovernmentBodyAnnualOutcomeSummary> result = getGovernmentBodyList();
        return result.stream().collect(Collectors.groupingBy(GovernmentBodyAnnualOutcomeSummary::getGovermentBody));
    }


    @Override
    public Map<String, List<GovernmentBodyAnnualOutcomeSummary>> getGovernmentBodyReportByMinistry() {
        final List<GovernmentBodyAnnualOutcomeSummary> result = getGovernmentBodyList();
        return result.stream().filter(p -> p.getMinistry() != null).collect(Collectors.groupingBy(GovernmentBodyAnnualOutcomeSummary::getMinistry));
    }

    /**
     * Gets the government body list.
     *
     * @return the government body list
     */
    private List<GovernmentBodyAnnualOutcomeSummary> getGovernmentBodyList() {
        final List<GovernmentBodyAnnualOutcomeSummary> result = new ArrayList<>();
        try {
            result.addAll(esvGovernmentBodyOperationOutcomeReader.readIncomeCsv());
            result.addAll(esvGovernmentBodyOperationOutcomeReader.readOutgoingCsv());
        } catch (final IOException e) {
            LOGGER.error(GET_GOVERNMENT_BODY_REPORT,e);
            return result;
        }
        return result;
    }

    @Override
    public Map<String, List<GovernmentBodyAnnualOutcomeSummary>> getGovernmentBodyReportByField(final String string) {
        final List<GovernmentBodyAnnualOutcomeSummary> result = getGovernmentBodyList();
        return result.stream().filter(p -> p.getDescriptionFields().get(string) != null) .collect(Collectors.groupingBy(t -> t.getDescriptionFields().get(string)));
    }

    @Override
    public Map<String, List<GovernmentBodyAnnualOutcomeSummary>> getGovernmentBodyReportByFieldAndMinistry(final String string,final String ministry) {
        final List<GovernmentBodyAnnualOutcomeSummary> result = getGovernmentBodyList();
        return result.stream().filter(p -> p.getDescriptionFields().get(string) != null && ministry.equalsIgnoreCase(p.getMinistry())) .collect(Collectors.groupingBy(t -> t.getDescriptionFields().get(string)));
    }

}