import { writable } from "svelte/store"
import L from "leaflet";

import type { TelemetryPoint, ParsedTelemetry } from "./types";

export function parseTelemetry(telemetry: TelemetryPoint[]): ParsedTelemetry {
    const flight_path: [number, number, number][] = telemetry.map((point) => [
        point.latitude,
        point.longitude,
        point.altitude
    ]);

    const launch = {
        latlng: L.latLng(telemetry[0].latitude, telemetry[0].longitude),
        datetime: new Date(telemetry[0].datetime)
    };

    return {
        flight_path,
        launch,
        datapoints: telemetry
    };
}