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var CheckhasChildIncidents = Class.create();
CheckhasChildIncidents.prototype = Object.extendsObject(AbstractAjaxProcessor, {

  hasChildIncidents: function(current) {
	var ticketHasChildIncidents = 'false';
	if (current == 'undefined' || current == null) {current = this.getParameter('sysparm_number');}
	
	var rec = new GlideRecord('incident');
		if (!rec.get(current))
	return 'bad rec';

	var gr = new GlideAggregate('incident');
	gr.addQuery('child_incidents', current);
	gr.addAggregate('COUNT');
	gr.query();
	var count = 0;
	if (gr.next()) {
		count = gr.getAggregate('COUNT');
	} 
	
	if (rec.child_incidents > 0)
	{
		ticketHasChildIncidents = 'true';
	} else {
		ticketHasChildIncidents = 'false';
	}

	return ticketHasChildIncidents;
  },
  
  type: 'CheckhasChildIncidents'
});

function onLoad() {
	var newButton = document.createElement("button");

	var number = g_form.getValue('number');
	var ga = new GlideAjax('global.CheckhasChildIncidents');
	ga.addParam('sysparm_name', 'hasChildIncidents');
	ga.addParam('sysparm_number', number);
	ga.getXML(function(response) {
		hasChildIncidentsResult = response.responseXML.documentElement.getAttribute('answer');

	 if (hasChildIncidentsResult === 'true') {
		var oldButton = document.querySelector('button[type="button"][class="btn btn-default activity-submit"][ng-keypress="submitCheck($event)"][ng-click="postJournalEntryForCurrent($event)"]');

		oldButtonId = document.createAttribute('id');
		oldButton.setAttributeNode(oldButtonId);
		oldButton.setAttribute("id", "OriginalFormPostButton");
		
		ngclick = document.createAttribute('ng-click');
		ngkeypress = document.createAttribute('ng-keypress');
		nghide = document.createAttribute('ng-hide');
		
		btnclass = document.createAttribute('class');
		btnclass = document.createAttribute('type');

		newButton.innerText = "Custom Post Button";
		newButton.setAttributeNode(ngclick);
		newButton.setAttributeNode(ngkeypress);
		newButton.setAttributeNode(nghide);
		newButton.setAttributeNode(btnclass);

		newButton.setAttribute("class", "btn btn-default");
		newButton.setAttribute("type", "button");
		newButton.setAttribute("ng-click", "postJournalEntryForCurrent($event)");
		newButton.setAttribute("ng-keypress", "submitCheck($event)");
		newButton.setAttribute("ng-hide", "!false && doesFormHasMandatoryJournalFields()");

		newButton.addEventListener("click", doPrompt);
		
		oldButton.style.visibility='hidden';
		oldButton.after(newButton);

	 }
	});
	
	function doPrompt() {
		var message = getMessage("This update will be send to all child records. Are you sure?");
		var dialogClass = window.GlideModal ? GlideModal : GlideDialogWindow;
		var dialog = new dialogClass('glide_confirm_standard');
			
		dialog.setTitle(new GwtMessage().getMessage('Incident has related records.'));
		dialog.setPreference('warning', true);
		dialog.setPreference('title', message);
		dialog.setPreference('onPromptComplete', confirm.bind(this));
		dialog.setPreference('onPromptCancel', cancel.bind(this));
		
		dialog.render();
	}

	function confirm() {
		newButton.removeEventListener("click", doPrompt);
		newButton.remove();

		document.getElementById("OriginalFormPostButton").style.visibility='visible';
		document.getElementById("OriginalFormPostButton").click();
	}

	function cancel() {
		return false;
	}
}