mapcomplete/Logic/FeatureSource/FeaturePipeline.ts

90 lines
No EOL
3.9 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 LayerConfig from "../../Customizations/JSON/LayerConfig";
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";
export default class FeaturePipeline implements FeatureSource {
public features: UIEventSource<{ feature: any; freshness: Date }[]> ;
public readonly name = "FeaturePipeline"
constructor(flayers: UIEventSource<{ isDisplayed: UIEventSource<boolean>, layerDef: LayerConfig }[]>,
updater: FeatureSource,
fromOsmApi: FeatureSource,
layout: UIEventSource<LayoutConfig>,
newPoints: FeatureSource,
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(
updater)
)), layout));
const geojsonSources: FeatureSource [] = GeoJsonSource
.ConstructMultiSource(flayers.data, locationControl)
.map(geojsonSource => {
let source = new RegisteringFeatureSource(new FeatureDuplicatorPerLayer(flayers, geojsonSource));
if(!geojsonSource.isOsmCache){
source = new MetaTaggingFeatureSource(allLoadedFeatures, source, updater.features);
}
return source
});
const amendedLocalStorageSource =
new RememberingSource(new RegisteringFeatureSource(new FeatureDuplicatorPerLayer(flayers, new LocalStorageSource(layout))
));
newPoints = new MetaTaggingFeatureSource(allLoadedFeatures,
new FeatureDuplicatorPerLayer(flayers,
new RegisteringFeatureSource(newPoints)));
const amendedOsmApiSource = new RememberingSource(
new MetaTaggingFeatureSource(allLoadedFeatures,
new FeatureDuplicatorPerLayer(flayers,
new RegisteringFeatureSource(fromOsmApi))));
const merged =
new FeatureSourceMerger([
amendedOverpassSource,
amendedOsmApiSource,
amendedLocalStorageSource,
newPoints,
...geojsonSources
]);
merged.features.syncWith(allLoadedFeatures)
this.features = new WayHandlingApplyingFeatureSource(flayers,
new FilteringFeatureSource(
flayers,
locationControl,
selectedElement,
merged
)).features;
}
}