photochamber-webserver/static/public/js/medias.js

class Media {
    constructor(data) {
        this.date = new Date(data.date);
        this.md5sum = data.md5sum;
        this.path = data.path;
        this.meta = data.meta || {};
        this.tags = data.tags || [];
        this.thumbnail = `/api/media/thumbnail/${data.md5sum}.png`;
        this.ui = null;
    }
}

class MediaStorage extends EventTarget
{
    constructor() {
        super();
        this.medias = [];
        this.oldest = null;
        this.newest = null;
    }

    pushAll(arr) {
        for (let i of arr) {
            this.medias.push(i);
            this.oldest = !this.oldest || this.oldest.date.getTime() < i.date.getTime() ? i : this.oldest;
            this.newest = !this.newest || this.newest.date.getTime() > i.date.getTime() ? i : this.newest;
        }
        for (let i of arr)
            this.dispatchEvent(new CustomEvent("newMedia", { detail: i }));
    }
}

MediaStorage.Instance = new MediaStorage();