import {Utils} from "../../Utils";
import {Feature} from "geojson";
import {Point} from "@turf/turf";
import {GeoLocationPointProperties} from "../../Logic/Actors/GeoLocationHandler";
import UploadTraceToOsmUI from "../BigComponents/UploadTraceToOsmUI";
import {SpecialVisualization} from "../SpecialVisualization";

/**
 * Wrapper  around 'UploadTraceToOsmUI'
 */
export class UploadToOsmViz implements SpecialVisualization {
    funcName = "upload_to_osm"
    docs = "Uploads the GPS-history as GPX to OpenStreetMap.org; clears the history afterwards. The actual feature is ignored."
    args =  []

    constr(state, featureTags, args) {

        function getTrace(title: string) {
            title = title?.trim()
            if (title === undefined || title === "") {
                title = "Uploaded with MapComplete"
            }
            title = Utils.EncodeXmlValue(title)
            const userLocations: Feature<Point, GeoLocationPointProperties>[] = state.historicalUserLocations.features.data.map(f => f.feature)
            const trackPoints: string[] = []
            for (const l of userLocations) {
                let trkpt = `    <trkpt lat="${l.geometry.coordinates[1]}" lon="${l.geometry.coordinates[0]}">`
                trkpt += `        <time>${l.properties.date}</time>`
                if (l.properties.altitude !== null && l.properties.altitude !== undefined) {
                    trkpt += `        <ele>${l.properties.altitude}</ele>`
                }
                trkpt += "    </trkpt>"
                trackPoints.push(trkpt)
            }
            const header = '<gpx version="1.1" creator="MapComplete track uploader" xmlns="http://www.topografix.com/GPX/1/1" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.topografix.com/GPX/1/1 http://www.topografix.com/GPX/1/1/gpx.xsd">'
            return header + "\n<name>" + title + "</name>\n<trk><trkseg>\n" + trackPoints.join("\n") + "\n</trkseg></trk></gpx>"
        }

        return new UploadTraceToOsmUI(getTrace, state, {
            whenUploaded: async () => {
                state.historicalUserLocations.features.setData([])
            }
        })
    }
}