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Gc :: Api
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package io.ultreia.gc.session;

/*-
 * #%L
 * GC toolkit :: API
 * %%
 * Copyright (C) 2017 Ultreia.io
 * %%
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as
 * published by the Free Software Foundation, either version 3 of the
 * License, or (at your option) any later version.
 * 
 * This program 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 General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public
 * License along with this program.  If not, see
 * .
 * #L%
 */

import io.ultreia.gc.http.GcExecuteRequestException;
import io.ultreia.gc.http.GcLoginException;
import io.ultreia.gc.http.GcRequest;
import io.ultreia.gc.http.GcRequestBuilder;
import io.ultreia.gc.http.GcResponse;
import io.ultreia.gc.http.GcResponseBuilder;
import java.io.Closeable;
import java.io.IOException;
import java.util.Arrays;
import java.util.LinkedHashMap;
import java.util.Map;
import java.util.Objects;
import java.util.UUID;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.jsoup.nodes.Document;

/**
 * Created by tchemit on 13/04/17.
 *
 * @author Tony Chemit - [email protected]
 */
public class GcSession implements Closeable {

    private static final Log log = LogFactory.getLog(GcSession.class);

    private static final Map HEADERS;

    static {
        HEADERS = new LinkedHashMap<>();
        HEADERS.put("User-Agent", "Mozilla/5.0 (Windows NT 6.1; rv:48.0) Gecko/20100101 Firefox/48.0");
        HEADERS.put("Accept", "text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8");
        HEADERS.put("Accept-Language", "fr-fr,en-us;q=0.7,en;q=0.3");
        HEADERS.put("DNT", "1");
        HEADERS.put("Connection", "keep-alive");
    }

    private final GcResponseBuilder responseBuilder = GcResponseBuilder.create();

    private final String username;
    private final String id;

    public GcRequestBuilder forGet() {
        return GcRequestBuilder.forGet().addHeaders(HEADERS);
    }

    public GcRequestBuilder forPost() {
        return GcRequestBuilder.forPost().addHeaders(HEADERS);
    }

    GcSession(String username, String password) {
        this.username = username;
        this.id = UUID.randomUUID().toString();
        GcRequest request = forGet().build("https://www.geocaching.com/account/login");

        GcResponse build;
        try {
            build = responseBuilder.executeRequest(request);
        } catch (IOException e) {
            throw new GcLoginException("can't get login page", e);
        }

        Document doc = build.getResponseAsHtml();
        String requestVerificationToken = doc.select("input[name='__RequestVerificationToken'][type='hidden']").attr("value");

        log.debug("User requestVerificationToken: " + requestVerificationToken);

        GcRequest request1 = GcRequestBuilder.forPost()
                .addHeaders(HEADERS)
                .addParameter("UserName", username)
                .addParameter("Password", password)
                .addParameter("__RequestVerificationToken", requestVerificationToken)
                .build("https://www.geocaching.com/account/login");

        GcResponse build1;
        try {
            build1 = responseBuilder.executeRequest(request1);
        } catch (IOException e) {
            throw new GcLoginException("can't submit login page", e);
        }

        log.debug("status code: " + build1.getStatusCode());
        log.debug("headers: " + Arrays.toString(build1.getResponseHeaders()));

        if (build1.getStatusCode() == 302) {
            log.info("Log in.");
        } else {
            throw new GcLoginException(build1.getResponseAsString());
        }
    }

    public GcResponse executeRequest(GcRequest request) {
        try {
            return responseBuilder.executeRequest(request);
        } catch (IOException e) {
            throw new GcExecuteRequestException(e);
        }
    }

    @Override
    public void close() {
        try {
            responseBuilder.close();
        } catch (IOException e) {
            throw new RuntimeException(e);
        }
    }

    public String getUsername() {
        return username;
    }

    public String getId() {
        return id;
    }

    @Override
    public boolean equals(Object o) {
        if (this == o) return true;
        if (o == null || getClass() != o.getClass()) return false;
        GcSession gcSession = (GcSession) o;
        return Objects.equals(id, gcSession.id);
    }

    @Override
    public int hashCode() {
        return Objects.hash(id);
    }
}