var findEventHandlers = function (eventType, jqSelector) {
    var results = [];
    var $ = jQuery; // to avoid conflict between others frameworks like Mootools

    var arrayIntersection = function (array1, array2) {
        return $(array1).filter(function (index, element) {
            return $.inArray(element, $(array2)) !== -1;
        });
    };

    var haveCommonElements = function (array1, array2) {
        return arrayIntersection(array1, array2).length !== 0;
    };


    var addEventHandlerInfo = function (element, event, $elementsCovered) {
        var extendedEvent = event;
        if ($elementsCovered !== void 0 && $elementsCovered !== null) {
            $.extend(extendedEvent, {
                targets: $elementsCovered.toArray()
            });
        }
        var eventInfo;
        var eventsInfo = $.grep(results, function (evInfo, index) {
            return element === evInfo.element;
        });

        if (eventsInfo.length === 0) {
            eventInfo = {
                element: element,
                events: [extendedEvent]
            };
            results.push(eventInfo);
        } else {
            eventInfo = eventsInfo[0];
            eventInfo.events.push(extendedEvent);
        }
    };


    var $elementsToWatch = $(jqSelector);
    if (jqSelector === "*") //* does not include document and we might be interested in handlers registered there
        $elementsToWatch = $elementsToWatch.add(document);
    var $allElements = $("*").add(document);

    $.each($allElements, function (elementIndex, element) {
        var allElementEvents = $._data(element, "events");
        if (allElementEvents !== void 0 && allElementEvents[eventType] !== void 0) {
            var eventContainer = allElementEvents[eventType];
            $.each(eventContainer, function (eventIndex, event) {
                var isDelegateEvent = event.selector !== void 0 && event.selector !== null;
                var $elementsCovered;
                if (isDelegateEvent) {
                    $elementsCovered = $(event.selector, element); //only look at children of the element, since those are the only ones the handler covers
                } else {
                    $elementsCovered = $(element); //just itself
                }
                if (haveCommonElements($elementsCovered, $elementsToWatch)) {
                    addEventHandlerInfo(element, event, $elementsCovered);
                }
            });
        }
    });

    return results;
};

window.top.addEventListener('popstate', function (event) {
    window.setTimeout(function () {
        if (!event) return;
        var state = event.state;
        if (state === '') state = '/';
        if (state[0] !== '/') state = '/' + state;
        if (!!state) fastLoad(state, false, true);
    }, 0);
});
$(document).ready(function () {
    $(document).on('click', '.stag_rhs_toggle', function () {
        var state = window.top.toggleRHS(),
            icon = $(this).find('i');
        if (state === 'collapsed') {
            icon.removeClass().addClass('fa fa-arrow-left');
        } else {
            icon.removeClass().addClass('fa fa-arrow-right');
        }
    });
    var body = $(window.top.document.body),
        icon = $('.stag_rhs_toggle i');
    if (body.is('.stag_rhs_collapsed')) {
        icon.removeClass().addClass('fa fa-arrow-left');
    }
    initFastLoad();
});
function enableTimeSpecificFields(_checked, _valueClass, _rangeClass) {
    if(_valueClass) $('.' + _valueClass).prop('disabled', _checked);
    if(_rangeClass) $('.' + _rangeClass).prop('disabled', !_checked);
}
function toggleDisabledAsNeeded(_el, _targetValue, _enableClass, _disableClass) {
    if(_el.value === _targetValue) {
        if(_enableClass) $('.' + _enableClass).prop('disabled', false);
        if(_disableClass) $('.' + _disableClass).prop('disabled', true);
    }
    else {
        if(_enableClass) $('.' + _enableClass).prop('disabled', true);
        if(_disableClass) $('.' + _disableClass).prop('disabled', false);
    }
}
function toggleVisibilityAsNeeded(_el, _targetValue, _visibleClass, _hiddenClass) {
    if(_el.value === _targetValue) {
        if(_visibleClass) $('.' + _visibleClass).removeClass('d-none');
        if(_hiddenClass) $('.' + _hiddenClass).addClass('d-none');
    }
    else {
        if(_visibleClass) $('.' + _visibleClass).addClass('d-none');
        if(_hiddenClass) $('.' + _hiddenClass).removeClass('d-none');
    }
}
var fastCache = {};

function initFastLoad(_parent = false) {

    fastCache = {};

    var allAs = $('a:not([onclick]):not([href="#"])');
    if (_parent) {
        allAs = _parent.find('a:not([onclick]):not([href="#"])');
    }
    // find links without event handlers
    allAs.each(function () {
        if (!$(this).closest('[moe]').length) {
            if ($(this).closest('.dropdown-menu[aria-labelledby="practice-management"]').length) {
                enableFastLoad(this, true);
            } else {
                var handlers = findEventHandlers('click', this);
                if (!handlers || !handlers.length) {
                    enableFastLoad(this);
                }
            }
        }
    });

    function enableFastLoad(_a, _menuItem = false) {
        $(_a).on('click', function () {
            fastLoad(this.href, true, true);
            if (_menuItem) {
                $(this).closest('.dropdown-menu')
                    .removeClass('show')
                    .prev('.dropdown-toggle').attr('aria-expanded', 'false');
            }
            return false;
        });
        // console.info('FastLoad enabled for ' + _a.innerText + ' [' + _a.href + ']');
    }

    // fast cache
    allAs = $('a:not([onclick]):not([href="#"])');
    allAs.each(function () {
        var a = this;
        $.get(a.href, function (_data) {
            fastCache[a.href] = _data;
        });
    });

}

function fastLoad(_href, _history = true, _useCache = true) {
    function onData(_data) {
        var targetParent = $('.stag-content');
        _data = '<div>' + _data + '</div>';
        var content = $(_data).find('.stag-content');
        if (content && content.length) {
            content = content.html();
            content += '<script src="/js/yemi.js"></script>';
            targetParent.html(content);
            initFastLoad(targetParent);
            initializeCalendar();

            // push state
            if (_history) {
                var target = _href;
                if (target.indexOf('//') !== -1) {
                    target = target.split('//')[1];
                    if (target.indexOf('/') !== -1) {
                        target = target.substr(target.indexOf('/') + 1);
                    }
                }
                window.top.history.pushState(target, null, '/mc/' + target);
            }

        } else {
            console.warn('Target page not found: ' + _href);
            window.location.href = _href; // fallback
        }
        hideMask();
    }
    showMask();
    if (_useCache && !!fastCache[_href]) {
        onData(fastCache[_href]);
    } else {
        $.get(_href, onData);
    }
}

function openInRHS(_url) {
    window.top.showRHS();
    var icon = $('.stag_rhs_toggle i');
    icon.removeClass().addClass('fa fa-arrow-right');
    window.top.openInRHS(_url);
    return false;
}

function initializeCalendar() {
    if(!$('#calendar').length) return;
    var calendarEl = document.getElementById('calendar');
    var calendar = new FullCalendar.Calendar(calendarEl, {
        initialView: 'dayGridMonth'
    });
    calendar.render();
}