#include html.js

const $meta = (() => {
    return {
        get(name, prefixed=true) {
            if(!name) return;
            if(prefixed) name = `msz-${name}`;

            const elem = $query(`meta[name="${name}"]`);
            if(elem instanceof HTMLMetaElement && typeof elem.content === 'string')
                return elem.content;

            return null;
        },
        set(name, value, prefixed=true) {
            if(!name) return;
            if(prefixed) name = `msz-${name}`;

            let elem = $query(`meta[name="${name}"]`);
            if(elem instanceof HTMLMetaElement) {
                if(typeof value === 'string')
                    elem.content = value;
                else
                    elem.remove();
            } else {
                if(typeof value !== 'string')
                    return;

                elem = document.createElement('meta');
                elem.name = name;
                elem.content = value;
                document.head.appendChild(elem);
            }
        },
    };
})();