maps.chandlerswift.com/layers/dot-cams/index.js

import VectorLayer from 'ol/layer/Vector';
import {Vector as VectorSource} from 'ol/source.js';
import GeoJSON from 'ol/format/GeoJSON.js';

import Hls from 'hls.js';

import {Style} from 'ol/style.js';
import Icon from 'ol/style/Icon.js';

import pin from './pin.svg?url'; // TODO: remove `?url`?
import pinVideo from './pin-video.svg?url'; // TODO: remove `?url`?

import castleRockStates from './castle-rock/data/states.js';
import travelIqStates from './travel-iq/data/states.js';
import al from './al/data.geojson?url';
import de from './de/data.geojson?url';
import md from './md/data.geojson?url';

import dot_names from './layer_names.js';

const allStates = {
    ...castleRockStates,
    ...travelIqStates,
    'Alabama': al,
    'Delaware': de,
    'Maryland': md,
};

let dot_cams = {
    name: "State DOT Cameras",
    details: `<a href="#" onclick="this.closest('details').querySelectorAll('ul li input').forEach(e => e.checked || e.click()); return false;">Enable All</a>`,
    layers: [],
};

for (let [state, url] of Object.entries(allStates)) {
    const vectorLayer = new VectorLayer({
        source: new VectorSource({
            url: url,
            format: new GeoJSON,
        }),
        style: function(feature, resolution){
            return new Style({
                image: new Icon({
                    anchor: [0.5, 1],
                    src: feature.getProperties().views[0].hasVideo ? pinVideo : pin,
                }),
            });
        },
    });

    vectorLayer.customPopup = function(feature) {
        const view = feature.getProperties().views[0];
        if (view.hasVideo) {
            return `<p>${feature.getProperties().name}</p><video style="max-width: 80vw; max-height: 80vh;" id="popupVideo" autoplay controls></video>`;
        } else {
            return `<img style="max-width: 80vw; max-height: 80vh;" src="${view.src}">`;
        }
    };

    vectorLayer.customPopupCallback = function(feature) {
        const view = feature.getProperties().views[0];
        if (view.hasVideo) {
            const video = document.getElementById('popupVideo');

            if (Hls.isSupported()) {
                var hls = new Hls();
                hls.loadSource(view.src);
                hls.attachMedia(video);
                vectorLayer.destroyPopupCallback = () => hls.destroy();
            }
            // iDevice support, untested (only works in Safari; required for iPhones)
            else if (video.canPlayType('application/vnd.apple.mpegurl')) {
                video.src = view.src;
            }
        }
    }
    dot_cams.layers.push({
        name: dot_names[state] ?? state,
        layer: vectorLayer,
    });
}

dot_cams.layers.sort((a, b) => a.name > b.name ? 1 : -1); // Names are always unique

export default dot_cams;