mapcomplete/Logic/FeatureSource/FeaturePipeline.ts
2021-07-27 22:23:42 +02:00

95 lines
No EOL
4.1 KiB
TypeScript

import FilteringFeatureSource from "../FeatureSource/FilteringFeatureSource";
import FeatureSourceMerger from "../FeatureSource/FeatureSourceMerger";
import RememberingSource from "../FeatureSource/RememberingSource";
import WayHandlingApplyingFeatureSource from "../FeatureSource/WayHandlingApplyingFeatureSource";
import FeatureDuplicatorPerLayer from "../FeatureSource/FeatureDuplicatorPerLayer";
import FeatureSource from "../FeatureSource/FeatureSource";
import {UIEventSource} from "../UIEventSource";
import LocalStorageSaver from "./LocalStorageSaver";
import LocalStorageSource from "./LocalStorageSource";
import LayoutConfig from "../../Customizations/JSON/LayoutConfig";
import Loc from "../../Models/Loc";
import GeoJsonSource from "./GeoJsonSource";
import MetaTaggingFeatureSource from "./MetaTaggingFeatureSource";
import RegisteringFeatureSource from "./RegisteringFeatureSource";
import FilteredLayer from "../../Models/FilteredLayer";
import {Changes} from "../Osm/Changes";
import ChangeApplicator from "./ChangeApplicator";
export default class FeaturePipeline implements FeatureSource {
public features: UIEventSource<{ feature: any; freshness: Date }[]>;
public readonly name = "FeaturePipeline"
constructor(flayers: UIEventSource<FilteredLayer[]>,
changes: Changes,
updater: FeatureSource,
fromOsmApi: FeatureSource,
layout: UIEventSource<LayoutConfig>,
locationControl: UIEventSource<Loc>,
selectedElement: UIEventSource<any>) {
const allLoadedFeatures = new UIEventSource<{ feature: any; freshness: Date }[]>([])
// first we metatag, then we save to get the metatags into storage too
// Note that we need to register before we do metatagging (as it expects the event sources)
// AT last, the metaTagging also needs to be run _after_ the duplicatorPerLayer
const amendedOverpassSource =
new RememberingSource(
new LocalStorageSaver(
new MetaTaggingFeatureSource(allLoadedFeatures,
new FeatureDuplicatorPerLayer(flayers,
new RegisteringFeatureSource(
new ChangeApplicator(
updater, changes
))
)), layout));
const geojsonSources: FeatureSource [] = GeoJsonSource
.ConstructMultiSource(flayers.data, locationControl)
.map(geojsonSource => {
let source = new RegisteringFeatureSource(
new FeatureDuplicatorPerLayer(flayers,
new ChangeApplicator(geojsonSource, changes)));
if (!geojsonSource.isOsmCache) {
source = new MetaTaggingFeatureSource(allLoadedFeatures, source, updater.features);
}
return source
});
const amendedLocalStorageSource =
new RememberingSource(new RegisteringFeatureSource(new FeatureDuplicatorPerLayer(flayers, new ChangeApplicator(new LocalStorageSource(layout), changes))
));
const amendedOsmApiSource = new RememberingSource(
new MetaTaggingFeatureSource(allLoadedFeatures,
new FeatureDuplicatorPerLayer(flayers,
new RegisteringFeatureSource(new ChangeApplicator(fromOsmApi, changes,
{
// We lump in the new points here
generateNewGeometries: true
}
)))));
const merged =
new FeatureSourceMerger([
amendedOverpassSource,
amendedOsmApiSource,
amendedLocalStorageSource,
...geojsonSources
]);
merged.features.syncWith(allLoadedFeatures)
this.features = new WayHandlingApplyingFeatureSource(flayers,
new FilteringFeatureSource(
flayers,
locationControl,
selectedElement,
merged
)).features;
}
}