/*
 * To change this license header, choose License Headers in Project Properties.
 * To change this template file, choose Tools | Templates
 * and open the template in the editor.
 */
package osm.jp.api;

import java.util.ArrayList;
import org.w3c.dom.NamedNodeMap;
import org.w3c.dom.Node;

/**
 * OSM.xml の「Area(way)」ノード
 * 例）
 * <pre>{@code 
 *  <node id="5645448449" lat="35.7506438" lon="139.7516866"/>
 *  <node id="5645448450" lat="35.7507261" lon="139.7516913"/>
 *  <node id="5645448451" lat="35.7507196" lon="139.7518665"/>
 *  <node id="5645448452" lat="35.7506374" lon="139.7518619"/>
 *  <node id="289445748" lat="35.5251815" lon="139.3256576">
 *   <tag k="amenity" v="fuel"/>
 *   <tag k="brand" v="出光"/>
 *   <tag k="name" v="出光"/>
 *   <tag k="name:en" v="Idemitsu"/>
 *   <tag k="opening_hours" v="24/7"/>
 * </node>
 *   <way id="591327850">
 *     <nd ref="5645448449"/>
 *     <nd ref="5645448450"/>
 *     <nd ref="5645448451"/>
 *     <nd ref="5645448452"/>
 *     <nd ref="5645448449"/>
 *     <tag k="amenity" v="fuel"/>
 *     <tag k="name" v="Mobil"/>
 *     <tag k="name:ja" v="モービル"/>
 *   </way>
 * 
 * }</pre>
 * 
 * @author yuu
 */
public class OsmnodeNode {
    Node node = null;
    String id = null;
    String latStr = null;
    String lonStr = null;
    ArrayList<OsmnodeTag> tags = new ArrayList<>();
    
    public OsmnodeNode(Node node) {
        this.node = node;
        
        NamedNodeMap attributes = node.getAttributes();
        if (attributes != null) {
            id = attributes.getNamedItem("id").getNodeValue();
            Node nn = attributes.getNamedItem("lat");
            if (nn != null) {
                latStr = nn.getNodeValue();
            }
            Node nodeLon = attributes.getNamedItem("lon");
            if (nodeLon != null) {
                lonStr = nodeLon.getNodeValue();
            }
        }
        
        Node tagNodes = node.getFirstChild();
        while(tagNodes != null) {
            String nodeName = tagNodes.getNodeName();
            switch (nodeName) {
            case "tag":
                OsmnodeTag nodetag = new OsmnodeTag(tagNodes);
                tags.add(nodetag);
                break;
            }
            tagNodes = tagNodes.getNextSibling();
        }
    }
    
    public String getValue(String key) {
        for (OsmnodeTag tag : tags) {
            if (tag.key.equals(key)) {
                return tag.value;
            }
        }
        return null;
    }
    
    public boolean isRemoved() {
        for (OsmnodeTag tag : tags) {
            if (tag.key.startsWith("disused:")) {
                return true;
            }
            if (tag.key.startsWith("abandoned:")) {
                return true;
            }
            if (tag.key.startsWith("demolished:")) {
                return true;
            }
            if (tag.key.startsWith("removed:")) {
                return true;
            }
            if (tag.key.startsWith("no:")) {
                return true;
            }
            if (tag.key.startsWith("historic:")) {
                return true;
            }
            if (tag.key.startsWith("was:")) {
                return true;
            }
        }
        return false;
    }
}