(function () {
  "use strict";

  var cfg =
    typeof window.travelgoHotelAkbarCalendar === "object" && window.travelgoHotelAkbarCalendar
      ? window.travelgoHotelAkbarCalendar
      : {};
  var S = cfg.strings || {};

  function pad2(n) {
    return n < 10 ? "0" + n : String(n);
  }

  function localIsoDate(d) {
    if (!d || isNaN(d.getTime())) {
      return "";
    }
    return d.getFullYear() + "-" + pad2(d.getMonth() + 1) + "-" + pad2(d.getDate());
  }

  function parseIso(iso) {
    if (!iso) {
      return null;
    }
    var d = new Date(iso + "T12:00:00");
    return isNaN(d.getTime()) ? null : d;
  }

  function addDays(d, n) {
    var x = new Date(d.getTime());
    x.setDate(x.getDate() + n);
    return x;
  }

  function sameDay(a, b) {
    return (
      a &&
      b &&
      a.getFullYear() === b.getFullYear() &&
      a.getMonth() === b.getMonth() &&
      a.getDate() === b.getDate()
    );
  }

  function monthStart(d) {
    return new Date(d.getFullYear(), d.getMonth(), 1, 12, 0, 0, 0);
  }

  function formatAkbarMain(iso) {
    var d = parseIso(iso);
    if (!d) {
      return "\u2014";
    }
    var months = ["Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"];
    return d.getDate() + " " + months[d.getMonth()] + "'" + String(d.getFullYear()).slice(2);
  }

  function formatAkbarDow(iso) {
    var d = parseIso(iso);
    if (!d) {
      return "";
    }
    var days = ["Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday"];
    return days[d.getDay()];
  }

  function nightsBetween(ci, co) {
    var a = parseIso(ci);
    var b = parseIso(co);
    if (!a || !b) {
      return 1;
    }
    return Math.max(1, Math.round((b.getTime() - a.getTime()) / 86400000));
  }

  function defaultDates() {
    var ci = addDays(new Date(), 1);
    var co = addDays(ci, 1);
    return { ci: localIsoDate(ci), co: localIsoDate(co) };
  }

  function init(root) {
    if (!root || root.getAttribute("data-tgpe-cal-wired") === "1") {
      return;
    }
    var checkin = root.querySelector("#tgpe-checkin");
    var checkout = root.querySelector("#tgpe-checkout");
    var checkinTrigger = root.querySelector("#tgpe-checkin-trigger");
    var checkoutTrigger = root.querySelector("#tgpe-checkout-trigger");
    var checkinDisplay = root.querySelector("#tgpe-checkin-display");
    var checkinDow = root.querySelector("#tgpe-checkin-dow");
    var checkoutDisplay = root.querySelector("#tgpe-checkout-display");
    var checkoutDow = root.querySelector("#tgpe-checkout-dow");
    var nightsNum = root.querySelector("#tgpe-nights-num");
    var nightsLbl = root.querySelector("#tgpe-nights-lbl");
    var cal = root.querySelector("#tgpe-date-cal");
    var calBackdrop = root.querySelector("#tgpe-date-cal-backdrop");
    var calMonths = root.querySelector("#tgpe-cal-months");
    var calHint = root.querySelector("#tgpe-cal-hint");
    var calDone = root.querySelector("#tgpe-cal-done");
    var calPrev = root.querySelector("#tgpe-cal-prev");
    var calNext = root.querySelector("#tgpe-cal-next");

    if (!checkin || !checkout || !cal || !calMonths) {
      return;
    }

    var defs = defaultDates();
    if (!checkin.value) {
      checkin.value = defs.ci;
    }
    if (!checkout.value) {
      checkout.value = defs.co;
    }

    var viewStart = monthStart(new Date());
    var pickPhase = "checkin";
    var hoverIso = "";

    function todayIso() {
      return localIsoDate(new Date());
    }

    function updateDisplays() {
      if (checkinDisplay) {
        checkinDisplay.textContent = formatAkbarMain(checkin.value);
      }
      if (checkinDow) {
        checkinDow.textContent = formatAkbarDow(checkin.value);
      }
      if (checkoutDisplay) {
        checkoutDisplay.textContent = formatAkbarMain(checkout.value);
      }
      if (checkoutDow) {
        checkoutDow.textContent = formatAkbarDow(checkout.value);
      }
      var nights = nightsBetween(checkin.value, checkout.value);
      if (nightsNum) {
        nightsNum.textContent = String(nights);
      }
      if (nightsLbl) {
        nightsLbl.textContent = nights === 1 ? S.nightSingular || "NIGHT" : S.nightPlural || "NIGHTS";
      }
      root.dispatchEvent(
        new CustomEvent("travelgo:hotel-akbar-dates-updated", {
          bubbles: true,
          detail: { checkin: checkin.value, checkout: checkout.value },
        })
      );
    }

    function setHint() {
      if (!calHint) {
        return;
      }
      calHint.textContent =
        pickPhase === "checkout"
          ? S.selectCheckOut || "Select check-out date"
          : S.selectCheckIn || "Select check-in date";
    }

    function closeCal() {
      cal.setAttribute("hidden", "hidden");
      if (calBackdrop) {
        calBackdrop.setAttribute("hidden", "hidden");
      }
      if (checkinTrigger) {
        checkinTrigger.setAttribute("aria-expanded", "false");
      }
      if (checkoutTrigger) {
        checkoutTrigger.setAttribute("aria-expanded", "false");
      }
      var hero = document.querySelector(".travelgo-hero--akbar");
      if (hero) {
        hero.classList.remove("is-hotel-cal-open");
      }
    }

    function openCal(phase) {
      var paxPop = root.querySelector("#tgpe-pax-pop");
      if (paxPop && !paxPop.hasAttribute("hidden")) {
        paxPop.setAttribute("hidden", "hidden");
        var paxBackdrop = root.querySelector("#tgpe-pax-backdrop");
        if (paxBackdrop) {
          paxBackdrop.setAttribute("hidden", "hidden");
        }
        var paxTrigger = root.querySelector("#tgpe-pax-trigger");
        if (paxTrigger) {
          paxTrigger.setAttribute("aria-expanded", "false");
        }
      }
      pickPhase = phase === "checkout" ? "checkout" : "checkin";
      var ci = parseIso(checkin.value);
      viewStart = monthStart(ci || addDays(new Date(), 1));
      cal.removeAttribute("hidden");
      if (calBackdrop) {
        calBackdrop.removeAttribute("hidden");
      }
      if (phase === "checkout" && checkoutTrigger) {
        checkoutTrigger.setAttribute("aria-expanded", "true");
        if (checkinTrigger) {
          checkinTrigger.setAttribute("aria-expanded", "false");
        }
      } else if (checkinTrigger) {
        checkinTrigger.setAttribute("aria-expanded", "true");
        if (checkoutTrigger) {
          checkoutTrigger.setAttribute("aria-expanded", "false");
        }
      }
      var hero = document.querySelector(".travelgo-hero--akbar");
      if (hero) {
        hero.classList.add("is-hotel-cal-open");
      }
      setHint();
      renderMonths();
    }

    function isDisabled(iso) {
      if (!iso) {
        return true;
      }
      if (iso < todayIso()) {
        return true;
      }
      if (pickPhase === "checkout" && checkin.value) {
        var minCo = localIsoDate(addDays(parseIso(checkin.value), 1));
        return iso < minCo;
      }
      return false;
    }

    function inRange(iso) {
      if (!checkin.value || !checkout.value) {
        return false;
      }
      return iso > checkin.value && iso < checkout.value;
    }

    function monthLabel(d) {
      return d.toLocaleDateString("en-IN", { month: "long", year: "numeric" });
    }

    function renderMonthGrid(monthDate) {
      var start = monthStart(monthDate);
      var year = start.getFullYear();
      var month = start.getMonth();
      var firstDow = start.getDay();
      var daysInMonth = new Date(year, month + 1, 0).getDate();
      var weekdays = (S.weekdaysShort || "Su Mo Tu We Th Fr Sa").split(/\s+/);
      if (weekdays.length < 7) {
        weekdays = ["Su", "Mo", "Tu", "We", "Th", "Fr", "Sa"];
      }

      var html =
        '<div class="tgpe-cal-month">' +
        '<p class="tgpe-cal-month__title">' +
        monthLabel(start) +
        "</p>" +
        '<div class="tgpe-cal-weekdays">';
      weekdays.forEach(function (w) {
        html += '<span class="tgpe-cal-weekday">' + w + "</span>";
      });
      html += '</div><div class="tgpe-cal-days">';

      var pad = firstDow;
      var i;
      for (i = 0; i < pad; i++) {
        html += '<span class="tgpe-cal-day tgpe-cal-day--empty" aria-hidden="true"></span>';
      }
      for (i = 1; i <= daysInMonth; i++) {
        var iso = localIsoDate(new Date(year, month, i, 12, 0, 0, 0));
        var disabled = isDisabled(iso);
        var isCi = checkin.value === iso;
        var isCo = checkout.value === iso;
        var inRg = inRange(iso);
        var isHover = hoverIso === iso;
        var cls = "tgpe-cal-day";
        if (disabled) {
          cls += " is-disabled";
        }
        if (isCi) {
          cls += " is-checkin";
        }
        if (isCo) {
          cls += " is-checkout";
        }
        if (inRg) {
          cls += " is-inrange";
        }
        if (isHover && !disabled) {
          cls += " is-hover";
        }
        html +=
          '<button type="button" class="' +
          cls +
          '" data-iso="' +
          iso +
          '"' +
          (disabled ? " disabled" : "") +
          ">" +
          i +
          "</button>";
      }
      html += "</div></div>";
      return html;
    }

    function renderMonths() {
      var months = window.matchMedia("(max-width: 640px)").matches ? 1 : 2;
      var html = "";
      var m;
      for (m = 0; m < months; m++) {
        var md = new Date(viewStart.getFullYear(), viewStart.getMonth() + m, 1, 12, 0, 0, 0);
        html += renderMonthGrid(md);
      }
      calMonths.innerHTML = html;
      calMonths.querySelectorAll(".tgpe-cal-day[data-iso]").forEach(function (btn) {
        btn.addEventListener("click", function () {
          var iso = btn.getAttribute("data-iso");
          if (!iso || isDisabled(iso)) {
            return;
          }
          onPick(iso);
        });
        btn.addEventListener("mouseenter", function () {
          hoverIso = btn.getAttribute("data-iso") || "";
          renderMonths();
        });
        btn.addEventListener("mouseleave", function () {
          hoverIso = "";
          renderMonths();
        });
      });
    }

    function onPick(iso) {
      if (pickPhase === "checkin") {
        checkin.value = iso;
        var co = parseIso(checkout.value);
        var ci = parseIso(iso);
        if (!co || !ci || co <= ci) {
          checkout.value = localIsoDate(addDays(ci, 1));
        }
        pickPhase = "checkout";
        setHint();
        updateDisplays();
        renderMonths();
        return;
      }
      checkout.value = iso;
      updateDisplays();
      closeCal();
    }

    if (checkinTrigger) {
      checkinTrigger.addEventListener("click", function (e) {
        e.preventDefault();
        e.stopPropagation();
        if (!cal.hasAttribute("hidden") && pickPhase === "checkin") {
          closeCal();
          return;
        }
        openCal("checkin");
      });
    }
    if (checkoutTrigger) {
      checkoutTrigger.addEventListener("click", function (e) {
        e.preventDefault();
        e.stopPropagation();
        if (!cal.hasAttribute("hidden") && pickPhase === "checkout") {
          closeCal();
          return;
        }
        openCal("checkout");
      });
    }
    if (calPrev) {
      calPrev.addEventListener("click", function () {
        viewStart = new Date(viewStart.getFullYear(), viewStart.getMonth() - 1, 1, 12, 0, 0, 0);
        renderMonths();
      });
    }
    if (calNext) {
      calNext.addEventListener("click", function () {
        viewStart = new Date(viewStart.getFullYear(), viewStart.getMonth() + 1, 1, 12, 0, 0, 0);
        renderMonths();
      });
    }
    if (calDone) {
      calDone.addEventListener("click", closeCal);
    }
    if (calBackdrop) {
      calBackdrop.addEventListener("click", closeCal);
    }
    document.addEventListener("keydown", function (e) {
      if (e.key === "Escape" && !cal.hasAttribute("hidden")) {
        closeCal();
      }
    });
    document.addEventListener("click", function (e) {
      if (cal.hasAttribute("hidden")) {
        return;
      }
      var t = e.target;
      if (!t || !t.closest) {
        return;
      }
      if (t.closest("#tgpe-date-cal")) {
        return;
      }
      if (t.closest("#tgpe-checkin-trigger") || t.closest("#tgpe-checkout-trigger")) {
        return;
      }
      closeCal();
    });

    updateDisplays();
    root.setAttribute("data-tgpe-cal-wired", "1");
  }

  window.travelgoHotelAkbarCalendarInit = init;

  function boot() {
    document.querySelectorAll(".travelgo-gpe-embed.travelgo-gpe--akbar[data-tgpe-page=\"form\"]").forEach(init);
  }

  if (document.readyState === "loading") {
    document.addEventListener("DOMContentLoaded", boot);
  } else {
    boot();
  }
})();