273 lines
No EOL
9.5 KiB
TypeScript
273 lines
No EOL
9.5 KiB
TypeScript
/**
|
|
* Handles all changes made to OSM.
|
|
* Needs an authenticator via OsmConnection
|
|
*/
|
|
import {OsmConnection} from "./OsmConnection";
|
|
import {OsmNode, OsmObject} from "./OsmObject";
|
|
import {ElementStorage} from "./ElementStorage";
|
|
import {UIEventSource} from "../UI/UIEventSource";
|
|
import {Question, QuestionDefinition} from "./Question";
|
|
import {Tag} from "./TagsFilter";
|
|
|
|
export class Changes {
|
|
|
|
private static _nextId = -1; // New assined ID's are negative
|
|
|
|
private readonly login: OsmConnection;
|
|
public readonly _allElements: ElementStorage;
|
|
|
|
private _pendingChanges: { elementId: string, key: string, value: string }[] = []; // Gets reset on uploadAll
|
|
private newElements: OsmObject[] = []; // Gets reset on uploadAll
|
|
|
|
public readonly pendingChangesES = new UIEventSource<number>(this._pendingChanges.length);
|
|
public readonly isSaving = new UIEventSource(false);
|
|
private readonly _changesetComment: string;
|
|
private readonly _centerMessage: UIEventSource<string>;
|
|
|
|
constructor(
|
|
changesetComment: string,
|
|
login: OsmConnection,
|
|
allElements: ElementStorage,
|
|
centerMessage: UIEventSource<string>) {
|
|
this._changesetComment = changesetComment;
|
|
this.login = login;
|
|
this._allElements = allElements;
|
|
this._centerMessage = centerMessage;
|
|
}
|
|
|
|
/**
|
|
* Adds a change to the pending changes
|
|
* @param elementId
|
|
* @param key
|
|
* @param value
|
|
*/
|
|
addChange(elementId: string, key: string, value: string) {
|
|
|
|
if (!this.login.userDetails.data.loggedIn) {
|
|
this._centerMessage.setData(
|
|
"<p>Bedankt voor je antwoord!</p>" +
|
|
"<p>Gelieve <span class='activate-osm-authentication'>in te loggen op OpenStreetMap</span> om dit op te slaan.</p>" +
|
|
"<p>Nog geen account? <a href=\'https://www.openstreetmap.org/user/new\' target=\'_blank\'>Registreer hier</a></p>"
|
|
);
|
|
const self = this;
|
|
this.login.userDetails.addCallback(() => {
|
|
if (self.login.userDetails.data.loggedIn) {
|
|
self._centerMessage.setData("");
|
|
}
|
|
});
|
|
return;
|
|
}
|
|
|
|
|
|
if (key === undefined || key === null) {
|
|
console.log("Invalid key");
|
|
return;
|
|
}
|
|
if (value === undefined || value === null) {
|
|
console.log("Invalid value for ",key);
|
|
return;
|
|
}
|
|
|
|
const eventSource = this._allElements.getElement(elementId);
|
|
|
|
eventSource.data[key] = value;
|
|
eventSource.ping();
|
|
// We get the id from the event source, as that ID might be rewritten
|
|
this._pendingChanges.push({elementId: eventSource.data.id, key: key, value: value});
|
|
this.pendingChangesES.setData(this._pendingChanges.length);
|
|
|
|
|
|
}
|
|
|
|
/**
|
|
* Create a new node element at the given lat/long.
|
|
* An internal OsmObject is created to upload later on, a geojson represention is returned.
|
|
* Note that the geojson version shares the tags (properties) by pointer, but has _no_ id in properties
|
|
*/
|
|
createElement(basicTags:Tag[], lat: number, lon: number) {
|
|
const osmNode = new OsmNode(Changes._nextId);
|
|
this.newElements.push(osmNode);
|
|
Changes._nextId--;
|
|
|
|
const id = "node/" + osmNode.id;
|
|
osmNode.lat = lat;
|
|
osmNode.lon = lon;
|
|
const properties = {id: id};
|
|
|
|
const geojson = {
|
|
"type": "Feature",
|
|
"properties": properties,
|
|
"id": id,
|
|
"geometry": {
|
|
"type": "Point",
|
|
"coordinates": [
|
|
lon,
|
|
lat
|
|
]
|
|
}
|
|
}
|
|
this._allElements.addOrGetElement(geojson);
|
|
|
|
// The basictags are COPIED, the id is included in the properties
|
|
// The tags are not yet written into the OsmObject, but this is applied onto a
|
|
for (const kv of basicTags) {
|
|
this.addChange(id, kv.key, kv.value); // We use the call, to trigger all the other machinery (including updating the geojson itsel
|
|
properties[kv.key] = kv.value;
|
|
}
|
|
|
|
return geojson;
|
|
}
|
|
|
|
public uploadAll(optionalContinuation: (() => void)) {
|
|
const self = this;
|
|
|
|
this.isSaving.setData(true);
|
|
const optionalContinuationWrapped = function () {
|
|
self.isSaving.setData(false);
|
|
if (optionalContinuation) {
|
|
optionalContinuation();
|
|
}
|
|
}
|
|
|
|
|
|
const pending: { elementId: string; key: string; value: string }[] = this._pendingChanges;
|
|
this._pendingChanges = [];
|
|
this.pendingChangesES.setData(this._pendingChanges.length);
|
|
|
|
const newElements = this.newElements;
|
|
this.newElements = [];
|
|
|
|
|
|
const knownElements = {}; // maps string --> OsmObject
|
|
function DownloadAndContinue(neededIds, continuation: (() => void)) {
|
|
// local function which downloads all the objects one by one
|
|
// this is one big loop, running one download, then rerunning the entire function
|
|
if (neededIds.length == 0) {
|
|
continuation();
|
|
return;
|
|
}
|
|
const neededId = neededIds.pop();
|
|
|
|
if (neededId in knownElements) {
|
|
DownloadAndContinue(neededIds, continuation);
|
|
return;
|
|
}
|
|
|
|
console.log("Downloading ", neededId);
|
|
OsmObject.DownloadObject(neededId,
|
|
function (element) {
|
|
knownElements[neededId] = element; // assign the element for later, continue downloading the next element
|
|
DownloadAndContinue(neededIds, continuation);
|
|
}
|
|
);
|
|
}
|
|
|
|
const neededIds = [];
|
|
for (const change of pending) {
|
|
const id = change.elementId;
|
|
if (parseFloat(id.split("/")[1]) < 0) {
|
|
console.log("Detected a new element! Exciting!")
|
|
} else {
|
|
neededIds.push(id);
|
|
}
|
|
}
|
|
|
|
|
|
DownloadAndContinue(neededIds, function () {
|
|
// Here, inside the continuation, we know that all 'neededIds' are loaded in 'knownElements'
|
|
// We apply the changes on them
|
|
for (const change of pending) {
|
|
if (parseInt(change.elementId.split("/")[1]) < 0) {
|
|
// This is a new element - we should apply this on one of the new elements
|
|
for (const newElement of newElements) {
|
|
if (newElement.type + "/" + newElement.id === change.elementId) {
|
|
newElement.addTag(change.key, change.value);
|
|
}
|
|
}
|
|
|
|
} else {
|
|
console.log(knownElements, change.elementId);
|
|
knownElements[change.elementId].addTag(change.key, change.value);
|
|
// note: addTag will flag changes with 'element.changed' internally
|
|
}
|
|
}
|
|
|
|
// Small sanity check for duplicate information
|
|
let changedElements = [];
|
|
for (const elementId in knownElements) {
|
|
const element = knownElements[elementId];
|
|
if (element.changed) {
|
|
changedElements.push(element);
|
|
}
|
|
}
|
|
if (changedElements.length == 0 && newElements.length == 0) {
|
|
console.log("No changes in any object");
|
|
return;
|
|
}
|
|
|
|
|
|
const handleMapping = function (idMapping) {
|
|
for (const oldId in idMapping) {
|
|
const newId = idMapping[oldId];
|
|
|
|
const element = self._allElements.getElement(oldId);
|
|
element.data.id = newId;
|
|
self._allElements.addElementById(newId, element);
|
|
element.ping();
|
|
}
|
|
}
|
|
|
|
console.log("Beginning upload...");
|
|
// At last, we build the changeset and upload
|
|
self.login.UploadChangeset(self._changesetComment,
|
|
function (csId) {
|
|
|
|
let modifications = "";
|
|
for (const element of changedElements) {
|
|
if (!element.changed) {
|
|
continue;
|
|
}
|
|
modifications += element.ChangesetXML(csId) + "\n";
|
|
}
|
|
|
|
|
|
let creations = "";
|
|
for (const newElement of newElements) {
|
|
creations += newElement.ChangesetXML(csId);
|
|
}
|
|
|
|
|
|
let changes = "<osmChange version='0.6' generator='Mapcomplete 0.0.0'>";
|
|
|
|
if (creations.length > 0) {
|
|
changes +=
|
|
"<create>" +
|
|
creations +
|
|
"</create>";
|
|
}
|
|
|
|
if (modifications.length > 0) {
|
|
|
|
changes +=
|
|
"<modify>" +
|
|
modifications +
|
|
"</modify>";
|
|
}
|
|
|
|
changes += "</osmChange>";
|
|
|
|
return changes;
|
|
},
|
|
handleMapping,
|
|
optionalContinuationWrapped);
|
|
});
|
|
}
|
|
|
|
public asQuestions(qs : QuestionDefinition[]){
|
|
let ls = [];
|
|
for (var i in qs){
|
|
ls.push(new Question(this, qs[i]));
|
|
}
|
|
return ls;
|
|
}
|
|
} |