import { FeatureCollection, Point } from "geojson"
import { describe, it } from "vitest"
import StaticFeatureSource from "../../../src/Logic/FeatureSource/Sources/StaticFeatureSource"
import {
    ClusterGrouping,
    ClusteringFeatureSource,
} from "../../../src/Logic/FeatureSource/TiledFeatureSource/ClusteringFeatureSource"
import { UIEventSource } from "../../../src/Logic/UIEventSource"
import { expect } from "chai"

const points: FeatureCollection<Point> = {
    type: "FeatureCollection",
    features: [
        {
            type: "Feature",
            properties: { name: "a" },
            geometry: {
                coordinates: [9.759318139161195, 55.56552169756637],
                type: "Point",
            },
        },
        {
            type: "Feature",
            properties: { name: "b" },
            geometry: {
                coordinates: [9.759768615515327, 55.56569930560951],
                type: "Point",
            },
        },
        {
            type: "Feature",
            properties: { name: "c" },
            geometry: {
                coordinates: [9.75879327221594, 55.56569229478089],
                type: "Point",
            },
        },
        {
            type: "Feature",
            properties: { name: "d" },
            geometry: {
                coordinates: [9.759380131319915, 55.56507066300628],
                type: "Point",
            },
        },
    ],
}

describe("ClusteringFeatureSource", () => {
    it("smallTest", () => {
        const source = new StaticFeatureSource(points.features)
        const zoom = new UIEventSource(19)
        // On zoomlevel 19, all points are in a different tile
        const clusteringSource = new ClusteringFeatureSource(source, zoom, "test", {
            cutoff: 2,
            dontClusterAboveZoom: 100,
        })
        const allClusters = ClusterGrouping.singleton.features
        expect(allClusters.data.length).to.eq(0)
        expect(clusteringSource.features.data.length).to.eq(4)

        zoom.set(13)

        expect(allClusters.data.length).to.eq(1)
        expect(allClusters.data[0].properties["total_metric"]).to.eq("4")
        expect(clusteringSource.features.data.length).to.eq(0)
    })
})