/*
 * Copyright � 2016 TIBCO Software,Inc.All rights reserved.
 * http://community.jaspersoft.com/project/jaspermobile-android
 *
 * Unless you have purchased a commercial license agreement from TIBCO Jaspersoft,
 * the following license terms apply:
 *
 * This program is part of TIBCO Jaspersoft Mobile for Android.
 *
 * TIBCO Jaspersoft Mobile is free software:you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation,either version 3of the License,or
 * (at your option)any later version.
 *
 * TIBCO Jaspersoft Mobile is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY;without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.See the
 * GNU Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with TIBCO Jaspersoft Mobile for Android.If not,see
 * <http://www.gnu.org/licenses/lgpl>.
 */

package com.jaspersoft.android.jaspermobile.data.repository.resource;

import android.support.annotation.NonNull;

import com.jaspersoft.android.jaspermobile.data.JasperRestClient;
import com.jaspersoft.android.jaspermobile.data.entity.mapper.CriteriaMapper;
import com.jaspersoft.android.jaspermobile.data.entity.mapper.ResourceMapper;
import com.jaspersoft.android.jaspermobile.domain.SearchResult;
import com.jaspersoft.android.jaspermobile.domain.repository.resource.ResourceRepository;
import com.jaspersoft.android.jaspermobile.internal.di.PerProfile;
import com.jaspersoft.android.sdk.client.oxm.report.FolderDataResponse;
import com.jaspersoft.android.sdk.client.oxm.resource.ResourceLookup;
import com.jaspersoft.android.sdk.client.oxm.resource.ResourceLookupSearchCriteria;
import com.jaspersoft.android.sdk.service.data.report.ResourceOutput;
import com.jaspersoft.android.sdk.service.data.repository.Resource;
import com.jaspersoft.android.sdk.service.data.repository.ResourceType;
import com.jaspersoft.android.sdk.service.repository.RepositorySearchCriteria;
import com.jaspersoft.android.sdk.service.rx.repository.RxRepositoryService;

import java.util.List;

import javax.inject.Inject;

import rx.Observable;
import rx.functions.Action0;
import rx.functions.Func1;

/**
 * @author Tom Koptel
 * @since 2.3
 */
@PerProfile
public final class InMemoryResourceRepository implements ResourceRepository {
    private final JasperRestClient mRestClient;
    private final CriteriaMapper mCriteriaMapper;
    private final ResourceMapper mResourceMapper;

    @Inject
    public InMemoryResourceRepository(
            JasperRestClient restClient,
            CriteriaMapper criteriaMapper,
            ResourceMapper resourceMapper
    ) {
        mRestClient = restClient;
        mCriteriaMapper = criteriaMapper;
        mResourceMapper = resourceMapper;
    }

    @NonNull
    @Override
    public Observable<Resource> getResourceByType(@NonNull final String reportUri, @NonNull final String type) {
        return mRestClient.repositoryService()
                .flatMap(new Func1<RxRepositoryService, Observable<Resource>>() {
                    @Override
                    public Observable<Resource> call(RxRepositoryService service) {
                        return service.fetchResourceDetails(reportUri, ResourceType.valueOf(type));
                    }
                });
    }

    @NonNull
    @Override
    public Observable<ResourceOutput> getResourceContent(@NonNull final String resourceUri) {
        return mRestClient.repositoryService()
                .flatMap(new Func1<RxRepositoryService, Observable<ResourceOutput>>() {
                    @Override
                    public Observable<ResourceOutput> call(RxRepositoryService service) {
                        return service.fetchResourceContent(resourceUri);
                    }
                });
    }

    @NonNull
    @Override
    public Observable<SearchResult> searchResources(@NonNull final ResourceLookupSearchCriteria criteria) {
        return mRestClient.repositoryService()
                .flatMap(new Func1<RxRepositoryService, Observable<List<Resource>>>() {
                    @Override
                    public Observable<List<Resource>> call(RxRepositoryService service) {
                        RepositorySearchCriteria searchCriteria = mCriteriaMapper.toRetrofittedCriteria(criteria);
                        return service.search(searchCriteria).nextLookup();
                    }
                })
                .map(new Func1<List<Resource>, SearchResult>() {
                    @Override
                    public SearchResult call(List<Resource> resources) {
                        int limit = criteria.getLimit();
                        int searchCount = resources.size();
                        boolean hasReachedEnd = searchCount < limit;

                        List<ResourceLookup> lookups = mResourceMapper.toLegacyResources(resources);
                        SearchResult searchResult = new SearchResult(lookups, hasReachedEnd);
                        return searchResult;
                    }
                });
    }

    @NonNull
    @Override
    public Observable<List<FolderDataResponse>> getRootRepositories() {
        return mRestClient.repositoryService()
                .flatMap(new Func1<RxRepositoryService, Observable<List<Resource>>>() {
                    @Override
                    public Observable<List<Resource>> call(RxRepositoryService service) {
                        return service.fetchRootFolders();
                    }
                })
                .map(new Func1<List<Resource>, List<FolderDataResponse>>() {
                    @Override
                    public List<FolderDataResponse> call(List<Resource> resources) {
                        return mResourceMapper.toLegacyFolders(resources);
                    }
                });
    }
}