document.addEventListener("DOMContentLoaded", function() {

    var FER = [
        {i:"2026-01-01", f:"2026-01-31", d:"Feria Judicial de Verano PJN"},
        {i:"2026-02-16", f:"2026-02-17", d:"Carnaval"},
        {i:"2026-03-23", f:"2026-03-23", d:"Puente turístico"},
        {i:"2026-03-24", f:"2026-03-24", d:"Día de la Memoria"},
        {i:"2026-04-02", f:"2026-04-02", d:"Día de Malvinas"},
        {i:"2026-04-03", f:"2026-04-03", d:"Viernes Santo"},
        {i:"2026-05-01", f:"2026-05-01", d:"Día del Trabajador"},
        {i:"2026-05-25", f:"2026-05-25", d:"Revolución de Mayo"},
        {i:"2026-06-15", f:"2026-06-15", d:"Gral. Güemes"},
        {i:"2026-06-20", f:"2026-06-20", d:"Gral. Belgrano"},
        {i:"2026-07-09", f:"2026-07-09", d:"Día de la Independencia"},
        {i:"2026-07-10", f:"2026-07-10", d:"Puente turístico"},
        {i:"2026-08-17", f:"2026-08-17", d:"Gral. San Martín"},
        {i:"2026-10-12", f:"2026-10-12", d:"Diversidad Cultural"},
        {i:"2026-11-23", f:"2026-11-23", d:"Soberanía Nacional"},
        {i:"2026-12-07", f:"2026-12-07", d:"Puente turístico"},
        {i:"2026-12-08", f:"2026-12-08", d:"Inmaculada Concepción"},
        {i:"2026-12-25", f:"2026-12-25", d:"Navidad"}
    ];

    function esInhabil(fecha) {
        var t = new Date(fecha).setHours(0,0,0,0);
        var w = new Date(fecha).getDay();
        if (w === 0 || w === 6) return {e: true, d: "Fin de semana"};
        var fnd = null;
        for (var i = 0; i < FER.length; i++) {
            var x = FER[i];
            var s = new Date(x.i + "T00:00:00").getTime();
            var n = new Date(x.f + "T00:00:00").getTime();
            if (t >= s && t <= n) { fnd = x; break; }
        }
        return fnd ? {e: true, d: fnd.d} : {e: false};
    }

    function pjnCalc() {
        var fi  = document.getElementById("pjn_ini").value;
        var dc  = parseInt(document.getElementById("pjn_can").value);
        var tip = document.getElementById("pjn_tip").value;

        if (!fi || isNaN(dc) || dc < 1) return;

        var cur = new Date(fi + "T00:00:00");
        var cont = 0;
        var det = [];

        while (cont < dc) {
            cur.setDate(cur.getDate() + 1);
            var r = esInhabil(cur);
            if (tip === "h" && r.e) {
                if (r.d !== "Fin de semana") det.push({f: new Date(cur), d: r.d});
                continue;
            }
            cont++;
        }

        document.getElementById("pjn_vtx").innerText = cur.toLocaleDateString("es-AR", {
            weekday: "long", day: "numeric", month: "long", year: "numeric"
        }).toUpperCase();

        var g = new Date(cur);
        do { g.setDate(g.getDate() + 1); } while (esInhabil(g).e);
        document.getElementById("pjn_gtx").innerText = g.toLocaleDateString("es-AR", {
            weekday: "long", day: "numeric", month: "long", year: "numeric"
        }).toUpperCase();

        var lUI = document.getElementById("pjn_list");
        lUI.innerHTML = "";
        if (det.length > 0) {
            for (var j = 0; j < det.length; j++) {
                lUI.innerHTML += "<div style='font-size:12px;color:#555;display:flex;justify-content:space-between;margin-bottom:5px;border-bottom:1px solid #eee;padding-bottom:3px;font-family:sans-serif;'>"
                    + "<span>" + det[j].f.toLocaleDateString("es-AR") + "</span>"
                    + "<b>" + det[j].d + "</b></div>";
            }
            document.getElementById("pjn_dbox").style.display = "block";
        } else {
            document.getElementById("pjn_dbox").style.display = "none";
        }

        document.getElementById("pjn_res").style.display = "block";
    }

    var btn = document.getElementById("pjn_btn");
    if (btn) btn.addEventListener("click", pjnCalc);

    var ini = document.getElementById("pjn_ini");
    if (ini) ini.value = new Date().toISOString().split("T")[0];

});