/**
 * Copyright (c) 2018-2019, Mihai Emil Andronache
 * All rights reserved.
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 * 1)Redistributions of source code must retain the above copyright notice,
 * this list of conditions and the following disclaimer.
 * 2)Redistributions in binary form must reproduce the above copyright notice,
 * this list of conditions and the following disclaimer in the documentation
 * and/or other materials provided with the distribution.
 * 3)Neither the name of docker-java-api nor the names of its
 * contributors may be used to endorse or promote products derived from
 * this software without specific prior written permission.
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */
package com.amihaiemil.docker;

import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.utils.URIBuilder;

import java.net.URI;
import java.util.Collections;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;

/**
 * Listed containers, which may have filters applied.
 * @author Michael Lux ([email protected])
 * @version $Id: 158e43fefef9e3b75f3e7ea187eb5881df7ec785 $
 * @since 0.0.11
 */
final class ListedContainers extends RtContainers {
    /**
     * Container filters.
     */
    private final Map<String, Iterable<String>> filters;
    /**
     * Whether to request the size of containers (fields SizeRw and SizeRootFs).
     */
    private final boolean withSize;

    /**
     * Ctor.
     * @param client The http client.
     * @param uri The URI for this Containers API.
     * @param dkr The docker entry point.
     * @checkstyle ParameterNumber (2 lines)
     */
    ListedContainers(final HttpClient client, final URI uri, final Docker dkr) {
        this(client, uri, dkr, Collections.emptyMap(), false);
    }

    /**
     * Ctor.
     * @param client The http client.
     * @param uri The URI for this Containers API.
     * @param dkr The docker entry point.
     * @param filters Container filter
     * @param withSize Size query flag
     * @checkstyle ParameterNumber (2 lines)
     */
    ListedContainers(
        final HttpClient client, final URI uri,
        final Docker dkr, final Map<String, Iterable<String>> filters,
        final boolean withSize
    ) {
        super(client, uri, dkr);
        this.filters = filters;
        this.withSize = withSize;
    }

    @Override
    public Iterator<Container> iterator() {
        final URIBuilder uriBuilder = new UncheckedUriBuilder(
            super.baseUri().toString().concat("/json")
        );
        if (this.withSize) {
            uriBuilder.addParameter("size", "true");
        }
        final FilteredUriBuilder uri = new FilteredUriBuilder(
            uriBuilder,
            this.filters);
        
        return new ResourcesIterator<>(
            super.client(),
            new HttpGet(uri.build()),
            json -> new RtContainer(
                json,
                super.client(),
                URI.create(
                    super.baseUri().toString() + "/" + json.getString("Id")
                ),
                super.docker()
            )
        );
    }

    @Override
    public Containers withSize(final boolean newWithSize) {
        return new ListedContainers(
            super.client(),
            this.baseUri(),
            this.docker(),
            this.filters,
            newWithSize
        );
    }

    @Override
    public Iterator<Container> all() {
        final URIBuilder uriBuilder = new UncheckedUriBuilder(
            super.baseUri().toString().concat("/json")
        );
        uriBuilder.addParameter("all", "true");
        if (this.withSize) {
            uriBuilder.addParameter("size", "true");
        }
        final FilteredUriBuilder uri = new FilteredUriBuilder(
            uriBuilder,
            this.filters);

        return new ResourcesIterator<>(
            super.client(),
            new HttpGet(uri.build()),
            json -> new RtContainer(
                json,
                super.client(),
                URI.create(
                    super.baseUri().toString() + "/" + json.getString("Id")
                ),
                super.docker()
            )
        );
    }

    @Override
    public Containers filter(final Map<String, Iterable<String>> newFilters) {
        final Map<String, Iterable<String>> merged = new HashMap<>(
            this.filters
        );
        merged.putAll(newFilters);
        return new ListedContainers(
            super.client(),
            this.baseUri(),
            this.docker(),
            merged,
            this.withSize
        );
    }
}