Restructuring

Logic/Osm/OsmObject.ts

@@ -0,0 +1,185 @@
+import * as $ from "jquery"
+
+
+export abstract class OsmObject {
+
+    type: string;
+    id: number;
+    tags: {} = {};
+    version: number;
+    public changed: boolean = false;
+
+    protected constructor(type: string, id: number) {
+        this.id = id;
+        this.type = type;
+    }
+
+    static DownloadObject(id, continuation: ((element: OsmObject) => void)) {
+        const splitted = id.split("/");
+        const type = splitted[0];
+        const idN = splitted[1];
+        switch (type) {
+            case("node"):
+                return new OsmNode(idN).Download(continuation);
+            case("way"):
+                return new OsmWay(idN).Download(continuation);
+            case("relation"):
+                return new OsmRelation(idN).Download(continuation);
+
+        }
+    }
+
+
+    abstract SaveExtraData(element);
+
+    /**
+     * Replaces all '"' (double quotes) by '"'
+     * Bugfix where names containing '"' were not uploaded, such as '"Het Zwin" nature reserve'
+     * @param string
+     * @constructor
+     */
+    private Escape(string: string) {
+        while (string.indexOf('"') >= 0) {
+            string = string.replace('"', '"');
+        }
+        return string;
+    }
+
+    /**
+     * Generates the changeset-XML for tags
+     * @constructor
+     */
+    TagsXML(): string {
+        let tags = "";
+        for (const key in this.tags) {
+            const v = this.tags[key];
+            if (v !== "") {
+                tags += '        <tag k="' + this.Escape(key) + '" v="' + this.Escape(this.tags[key]) + '"/>\n'
+            }
+        }
+        return tags;
+    }
+
+    Download(continuation: ((element: OsmObject) => void)) {
+        const self = this;
+        $.getJSON("https://www.openstreetmap.org/api/0.6/" + this.type + "/" + this.id,
+            function (data) {
+                const element = data.elements[0];
+                self.tags = element.tags;
+                self.version = element.version;
+                self.SaveExtraData(element);
+                continuation(self);
+            }
+        );
+        return this;
+    }
+
+    public addTag(k: string, v: string): void {
+        if (k in this.tags) {
+            const oldV = this.tags[k];
+            if (oldV == v) {
+                return;
+            }
+            console.log("WARNING: overwriting ",oldV, " with ", v," for key ",k)
+        }
+        this.tags[k] = v;
+        this.changed = true;
+    }
+
+    protected VersionXML(){
+        if(this.version === undefined){
+            return "";
+        }
+        return 'version="'+this.version+'"';
+    }
+    abstract ChangesetXML(changesetId: string): string;
+}
+
+
+export class OsmNode extends OsmObject {
+
+    lat: number;
+    lon: number;
+
+    constructor(id) {
+        super("node", id);
+
+    }
+
+    ChangesetXML(changesetId: string): string {
+        let tags = this.TagsXML();
+
+        let change =
+            '        <node id="' + this.id + '" changeset="' + changesetId + '" ' + this.VersionXML() + ' lat="' + this.lat + '" lon="' + this.lon + '">\n' +
+            tags +
+            '        </node>\n';
+
+        return change;
+    }
+
+    SaveExtraData(element) {
+        this.lat = element.lat;
+        this.lon = element.lon;
+    }
+}
+
+export class OsmWay extends OsmObject {
+
+    nodes: number[];
+
+    constructor(id) {
+        super("way", id);
+
+    }
+
+    ChangesetXML(changesetId: string): string {
+        let tags = this.TagsXML();
+        let nds = "";
+        for (const node in this.nodes) {
+            nds += '      <nd ref="' + this.nodes[node] + '"/>\n';
+        }
+
+        let change =
+            '    <way id="' + this.id + '" changeset="' + changesetId + '" ' + this.VersionXML() + '>\n' +
+            nds +
+            tags +
+            '        </way>\n';
+
+        return change;
+    }
+
+    SaveExtraData(element) {
+        this.nodes = element.nodes;
+    }
+}
+
+export class OsmRelation extends OsmObject {
+
+    members;
+
+    constructor(id) {
+        super("relation", id);
+
+    }
+
+    ChangesetXML(changesetId: string): string {
+        let members = "";
+        for (const memberI in this.members) {
+            const member = this.members[memberI];
+            members += '      <member type="' + member.type + '" ref="' + member.ref + '" role="' + member.role + '"/>\n';
+        }
+
+        let tags = this.TagsXML();
+        let change =
+            '    <relation id="' + this.id + '" changeset="' + changesetId + '" ' + this.VersionXML() + '>\n' +
+            members +
+            tags +
+            '        </relation>\n';
+        return change;
+
+    }
+
+    SaveExtraData(element) {
+        this.members = element.members;
+    }
+}