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✏️ Editing: moodle-availability_date-form-debug.js

YUI.add('moodle-availability_date-form', function (Y, NAME) {

/**
 * JavaScript for form editing date conditions.
 *
 * @module moodle-availability_date-form
 */
M.availability_date = M.availability_date || {};

/**
 * @class M.availability_date.form
 * @extends M.core_availability.plugin
 */
M.availability_date.form = Y.Object(M.core_availability.plugin);

/**
 * Initialises this plugin.
 *
 * Because the date fields are complex depending on Moodle calendar settings,
 * we create the HTML for these fields in PHP and pass it to this method.
 *
 * @method initInner
 * @param {String} html HTML to use for date fields
 * @param {Number} defaultTime Time value that corresponds to initial fields
 */
M.availability_date.form.initInner = function(html, defaultTime) {
    this.html = html;
    this.defaultTime = defaultTime;
};

M.availability_date.form.getNode = function(json) {
    var html = '<span class="col-form-label pr-3">' +
                    M.util.get_string('direction_before', 'availability_date') + '</span> <span class="availability-group">' +
            '<label><span class="accesshide">' + M.util.get_string('direction_label', 'availability_date') + ' </span>' +
            '<select name="direction" class="custom-select">' +
            '<option value="&gt;=">' + M.util.get_string('direction_from', 'availability_date') + '</option>' +
            '<option value="&lt;">' + M.util.get_string('direction_until', 'availability_date') + '</option>' +
            '</select></label></span> ' + this.html;
    var node = Y.Node.create('<span>' + html + '</span>');

// Set initial value if non-default.
    if (json.t !== undefined) {
        node.setData('time', json.t);
        // Disable everything.
        node.all('select:not([name=direction])').each(function(select) {
            select.set('disabled', true);
        });

// Add event handlers (first time only).
    if (!M.availability_date.form.addedEvents) {
        M.availability_date.form.addedEvents = true;

var root = Y.one('.availability-field');
        root.delegate('change', function() {
            // For the direction, just update the form fields.
            M.core_availability.form.update();
        }, '.availability_date select[name=direction]');

root.delegate('change', function() {
            // Update time using AJAX call from root node.
            M.availability_date.form.updateTime(this.ancestor('span.availability_date'));
        }, '.availability_date select:not([name=direction])');
    }

if (node.one('a[href=#]')) {
        // Add the date selector magic.
        M.form.dateselector.init_single_date_selector(node);

// This special handler detects when the date selector changes the year.
        var yearSelect = node.one('select[name=x\\[year\\]]');
        var oldSet = yearSelect.set;
        yearSelect.set = function(name, value) {
            oldSet.call(yearSelect, name, value);
            if (name === 'selectedIndex') {
                // Do this after timeout or the other fields haven't been set yet.
                setTimeout(function() {
                    M.availability_date.form.updateTime(node);
                }, 0);
            }
        };
    }

return node;
};

/**
 * Updates time from AJAX. Whenever the field values change, we recompute the
 * actual time via an AJAX request to Moodle.
 *
 * This will set the 'time' data on the node and then update the form, once it
 * gets an AJAX response.
 *
 * @method updateTime
 * @param {Y.Node} node Node for plugin controls
 */
M.availability_date.form.updateTime = function(node) {
    // After a change to the date/time we need to recompute the
    // actual time using AJAX because it depends on the user's
    // time zone and calendar options.
    var url = M.cfg.wwwroot + '/availability/condition/date/ajax.php?action=totime' +
            '&year=' + node.one('select[name=x\\[year\\]]').get('value') +
            '&month=' + node.one('select[name=x\\[month\\]]').get('value') +
            '&day=' + node.one('select[name=x\\[day\\]]').get('value') +
            '&hour=' + node.one('select[name=x\\[hour\\]]').get('value') +
            '&minute=' + node.one('select[name=x\\[minute\\]]').get('value');
    Y.io(url, {on: {
        success: function(id, response) {
            node.setData('time', response.responseText);
            M.core_availability.form.update();
        },
        failure: function() {
            window.alert(M.util.get_string('ajaxerror', 'availability_date'));
        }
    }});
};

M.availability_date.form.fillValue = function(value, node) {
    value.d = node.one('select[name=direction]').get('value');
    value.t = parseInt(node.getData('time'), 10);
    value.nodeUID = node.getData('nodeUID');
};

/**
 * List out Date node value in the same branch.
 *
 * This will go through all array node and list nodes that are sibling of the current node.
 *
 * @method findAllDateSiblings
 * @param {Array} tree Tree items to convert
 * @param {Number} nodeUIDToFind node UID to find.
 * @return {Array|null} array of surrounding date avaiability values
 */
M.availability_date.form.findAllDateSiblings = function(tree, nodeUIDToFind) {
    var itemValue = null;
    var siblingsFinderRecursive = function(itemsTree) {
        var dateSiblings = [];
        var nodeFound = false;
        var index;
        var childDates;
        var currentOp = itemsTree.op !== undefined ? itemsTree.op : null;
        if (itemsTree.c !== undefined) {
            var children = itemsTree.c;
            for (index = 0; index < children.length; index++) {
                itemValue = children.at(index);
                if (itemValue.type === undefined) {
                    childDates = siblingsFinderRecursive(itemValue);
                    if (childDates) {
                        return childDates;
                    }
                }
                if (itemValue.type === 'date') {
                    // We go through all tree node, if we meet the current node then we add all nodes in the current branch.
                    if (nodeUIDToFind === itemValue.nodeUID) {
                        nodeFound = true;
                    } else if (currentOp === '&') {
                        dateSiblings.push(itemValue);
                    }
                }
            }
            if (nodeFound) {
                return dateSiblings;
            }
        }
        return null;
    };
    return siblingsFinderRecursive(tree);
};

/**
 * Check current node.
 *
 * This will check current date node with all date node in tree node.
 *
 * @method checkConditionDate
 * @param {Y.Node} currentNode The curent node.
 *
 * @return {boolean} error Return true if the date is conflict.
 */
M.availability_date.form.checkConditionDate = function(currentNode) {
    var error = false;
    var currentNodeUID = currentNode.getData('nodeUID');
    var currentNodeDirection = currentNode.one('select[name=direction]').get('value');
    var currentNodeTime = parseInt(currentNode.getData('time'), 10);
    var dateSiblings = M.availability_date.form.findAllDateSiblings(
        M.core_availability.form.rootList.getValue(),
        currentNodeUID);
    if (dateSiblings) {
        dateSiblings.forEach(function(dateSibling) {
            // Validate if the date is conflict.
            if (dateSibling.d === '<') {
                if (currentNodeDirection === '>=' && currentNodeTime >= dateSibling.t) {
                    error = true;
                }
            } else {
                if (currentNodeDirection === '<' && currentNodeTime <= dateSibling.t) {
                    error = true;
                }
            }
            return error;
        });
    }
    return error;
};

M.availability_date.form.fillErrors = function(errors, node) {
    var error = M.availability_date.form.checkConditionDate(node);
    if (error) {
        errors.push('availability_date:error_dateconflict');
    }
};

}, '@VERSION@', {"requires": ["base", "node", "event", "io", "moodle-core_availability-form"]});

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