/* Feedback de chargement pour FullCalendar et spinner sur le bouton Enregistrer du modal */
(function () {
  function setDisabled(containerSelector, disabled) {
    try {
      var container = document.querySelector(containerSelector);
      if (!container) return;
      var els = container.querySelectorAll('button, input, select, textarea');
      els.forEach(function (el) {
        el.disabled = !!disabled;
      });
    } catch (e) {}
  }

  function showIndicator(id, show) {
    try {
      var el = document.getElementById(id);
      if (el) {
        el.style.display = show ? 'block' : 'none';
      }
    } catch (e) {}
  }

  function attachLoading(calendar, indicatorId, filtersSelector) {
    try {
      if (!calendar || typeof calendar.setOption !== 'function') return;
      calendar.setOption('loading', function (isLoading) {
        showIndicator(indicatorId, isLoading);
        // Ne pas désactiver les filtres pendant le chargement, uniquement overlay sur le calendrier
        try {
          var calEl = document.getElementById('agenda-calendar') || (calendar.el || null);
          if (calEl && window.CRVI_OVERLAY) {
            if (isLoading) {
              window.CRVI_OVERLAY.show(calEl);
            } else {
              window.CRVI_OVERLAY.hide(calEl);
            }
          }
        } catch (e) {}
      });
    } catch (e) {}
  }

  // Gestionnaire de chargement global, pour couvrir les appels AJAX génériques (création, update, delete, etc.)
  // Usage: window.CRVI_LOADING.start(); ... finally window.CRVI_LOADING.end();
  (function initGlobalLoading() {
    var counter = 0;
    var defaultIndicatorId = 'loading-indicator';
    // Ne pas désactiver automatiquement les zones de filtres
    var defaultDisableSelectors = [];

    function updateUi() {
      var isLoading = counter > 0;
      try {
        showIndicator(defaultIndicatorId, isLoading);
        // Désactiver quelques containers communs si présents
        defaultDisableSelectors.forEach(function (sel) {
          setDisabled(sel, isLoading);
        });
      } catch (e) {}
    }

    if (!window.CRVI_LOADING) {
      window.CRVI_LOADING = {
        start: function () {
          counter++;
          updateUi();
        },
        end: function () {
          if (counter > 0) counter--;
          updateUi();
        },
        // Permet d'ajuster la cible si besoin ailleurs
        configure: function (opts) {
          if (opts && typeof opts.indicatorId === 'string') {
            defaultIndicatorId = opts.indicatorId;
          }
          if (opts && Array.isArray(opts.disableSelectors)) {
            defaultDisableSelectors = opts.disableSelectors.slice();
          }
          updateUi();
        },
        // Pour diagnostics
        _getCount: function () {
          return counter;
        }
      };
    }
  })();

  // Overlay ciblé par élément: window.CRVI_OVERLAY.show(elementOrSelector), .hide(...)
  (function initElementOverlay() {
    function getTarget(elOrSelector) {
      if (!elOrSelector) return null;
      if (typeof elOrSelector === 'string') return document.querySelector(elOrSelector);
      return elOrSelector.nodeType === 1 ? elOrSelector : null;
    }

    function ensurePositioned(target) {
      var style = window.getComputedStyle(target);
      if (style.position === 'static' || !style.position) {
        target.style.position = 'relative';
      }
    }

    function createOverlay(target) {
      var overlay = document.createElement('div');
      overlay.className = 'crvi-overlay';
      overlay.style.position = 'absolute';
      overlay.style.top = '0';
      overlay.style.left = '0';
      overlay.style.right = '0';
      overlay.style.bottom = '0';
      overlay.style.background = 'rgba(255,255,255,0.6)';
      overlay.style.display = 'flex';
      overlay.style.alignItems = 'center';
      overlay.style.justifyContent = 'center';
      overlay.style.zIndex = '20';

      var spinner = document.createElement('div');
      spinner.className = 'spinner-border text-primary';
      spinner.setAttribute('role', 'status');
      spinner.setAttribute('aria-hidden', 'true');

      overlay.appendChild(spinner);
      return overlay;
    }

    function getCount(target) {
      var c = parseInt(target.getAttribute('data-overlay-count') || '0', 10);
      return isNaN(c) ? 0 : c;
    }

    function setCount(target, c) {
      target.setAttribute('data-overlay-count', String(c));
    }

    function show(elOrSelector) {
      var target = getTarget(elOrSelector);
      if (!target) return;
      ensurePositioned(target);
      var count = getCount(target);
      setCount(target, count + 1);
      if (count > 0 && target.querySelector(':scope > .crvi-overlay')) {
        return;
      }
      var overlay = createOverlay(target);
      target.appendChild(overlay);
    }

    function hide(elOrSelector) {
      var target = getTarget(elOrSelector);
      if (!target) return;
      var count = getCount(target);
      count = Math.max(0, count - 1);
      setCount(target, count);
      if (count === 0) {
        var overlay = target.querySelector(':scope > .crvi-overlay');
        if (overlay) {
          overlay.remove();
        }
      }
    }

    if (!window.CRVI_OVERLAY) {
      window.CRVI_OVERLAY = { show: show, hide: hide };
    }
  })();

  function tryAttach() {
    if (window.currentCalendar) {
      attachLoading(window.currentCalendar, 'loading-indicator', '.filters');
    }
    if (window.currentColleaguesCalendar) {
      attachLoading(
        window.currentColleaguesCalendar,
        'loading-indicator-colleagues',
        '.filters-colleagues'
      );
    }
  }

  document.addEventListener('DOMContentLoaded', function () {
    // Essayer d'attacher au démarrage puis quelques tentatives (calendriers init asynchrones)
    tryAttach();
    var iv = setInterval(tryAttach, 500);
    setTimeout(function () {
      clearInterval(iv);
    }, 10000);

    // Spinner + désactivation sur le bouton Enregistrer du modal
    document.addEventListener(
      'click',
      function (e) {
        var btn = e.target && (e.target.closest ? e.target.closest('#saveEvent') : null);
        if (!btn) return;
        if (btn.dataset.loading === '1') return;

        btn.dataset.loading = '1';
        btn.disabled = true;
        if (!btn.dataset.originalHtml) {
          btn.dataset.originalHtml = btn.innerHTML;
        }
        btn.innerHTML =
          '<span class="spinner-border spinner-border-sm me-2" role="status" aria-hidden="true"></span>Enregistrer';

        var onDone = function () {
          btn.disabled = false;
          btn.dataset.loading = '0';
          if (btn.dataset.originalHtml) {
            btn.innerHTML = btn.dataset.originalHtml;
          }
        };

        // Réactiver à la fermeture du modal ou après un timeout de secours
        var modal = document.getElementById('eventModal');
        if (modal) {
          var handler = function () {
            modal.removeEventListener('hidden.bs.modal', handler);
            onDone();
          };
          modal.addEventListener('hidden.bs.modal', handler);
        }
        setTimeout(onDone, 8000);
      },
      true
    );
  });
})();