hamann-ausgabe-core/HaWeb/wwwroot/js/index.mjs

const startup_index = function (AvailableLetters, AvailablePages) {
    function encode(e) { return e.replace(/[^]/g, function (e) { return "&#" + e.charCodeAt(0) + ";" }) }

    const ACTIVATEGOTOFILTER = function (filter, button) {    
        let f = filter.value;
        let gotoinfo = document.getElementById("ha-gotoinfo");

        if (!f) {
            if (gotoinfo != null && !gotoinfo.classList.contains("opacity-0")) gotoinfo.classList.add("opacity-0");
            button.disabled = true;
            return;
        }

        if (typeof AvailableLetters !== 'undefined' && AvailableLetters != null && !AvailableLetters.has(f)) {
            if (gotoinfo != null) {
                gotoinfo.classList.remove("opacity-0");
                gotoinfo.innerHTML = "Brief Nr. " + encode(f) + " gibt es nicht.";
            }
            button.disabled = true;
            return;
        }

        if (gotoinfo != null && !gotoinfo.classList.contains("opacity-0")) gotoinfo.classList.add("opacity-0");
        button.disabled = false;
    }

    const ACTIVATEZHSEARCH = function (volume, page, button) {
        let vol = volume.options[volume.selectedIndex].value;
        let pg = page.value;
        let gotoinfo = document.getElementById("ha-zhsearchinfo");

        if (!pg) {
            if (gotoinfo != null && !gotoinfo.classList.contains("opacity-0")) gotoinfo.classList.add("opacity-0");
            button.disabled = true;
            return;
        }

        if (typeof AvailablePages !== 'undefined' && AvailablePages != null && AvailablePages[vol] != null && !(AvailablePages[vol].indexOf(pg) >= 0)) {
            if (gotoinfo != null) {
                gotoinfo.classList.remove("opacity-0");
                gotoinfo.innerHTML = "ZH Bd. " + encode(vol) + ", S. " + encode(pg) + " gibt es nicht.";
            }
            button.disabled = true;
            return;
        }

        if (gotoinfo != null && !gotoinfo.classList.contains("opacity-0")) gotoinfo.classList.add("opacity-0");
        button.disabled = false;
    }

    const SUBMITZHSEARCH = function (volume, page) {
        let vol = volume.options[volume.selectedIndex].value;
        let pg = page.value;
        window.location.href = "/HKB/" + vol + "/" + pg;
    }

    const ACTIVATESEARCHFILTER = function (filter, button) {
        let f = filter.value;
        if (!f) {
            button.disabled = true;
            return;
        }
        button.disabled = false;
    }

    // Go to letter HKB number
    let gotofilter = document.getElementById("ha-gotoletternumber");
    let gotosubmitbtn = document.getElementById("ha-gotoformsubmit");
    let gotoform = document.getElementById("ha-gotoform");
    ACTIVATEGOTOFILTER(gotofilter, gotosubmitbtn);
    gotofilter.addEventListener("input", () => ACTIVATEGOTOFILTER(gotofilter, gotosubmitbtn));

    // ZH Volume / Page Lookup
    let vol = document.getElementById("ha-zhformvolume");
    let pg = document.getElementById("ha-zhformpage");
    let zhsubmitbtn = document.getElementById("ha-zhformsubmit");
    let zhsearchform = document.getElementById("ha-zhform");
    ACTIVATEZHSEARCH(vol, pg, zhsubmitbtn);
    vol.addEventListener("change", () => ACTIVATEZHSEARCH(vol, pg, zhsubmitbtn));
    pg.addEventListener("input", () => ACTIVATEZHSEARCH(vol, pg, zhsubmitbtn));
    // Need to implement send bc razor tag helpers do not work here
    zhsearchform.addEventListener("submit", (ev) => {
        ev.preventDefault();
        SUBMITZHSEARCH(vol, pg);
    });

    // Full-text search
    let searchfilter = document.getElementById("ha-searchformtext");
    let searchsubmitbtn = document.getElementById("ha-searchformsubmit");
    let searchform = document.getElementById("ha-searchform");
    ACTIVATESEARCHFILTER(searchfilter, searchsubmitbtn);
    searchfilter.addEventListener("input", () => ACTIVATESEARCHFILTER(searchfilter, searchsubmitbtn));
};

export { startup_index };