Manage Item Permission, Break, Assign New Role, Remove Existing Role

PermissionManage.js

function PreSaveAction(){
	var status = $("[Title~='Status']").val();
	if (status == "Final"){
		var groupName = "XXX Owners"

		PermissionManager.BreakInheritance().then(function(data){
			console.log("Permission Inheritance Breaked with roles and groups");
		}).fail(function(error){
			console.log(error);
		}).then(function (){
			return PermissionManager.RoleAssignments();
		}).then(function (data){
			$.each(data.value,function(i,v){
				var roleSingleUrl = v["odata.id"];
				console.log(v);
				$.getJSON(roleSingleUrl, function(d2){
					//console.log(d2);
					//console.log(v.PrincipalId);
					var rolDefReadId = 1073741826;
					var roleAssignUrl = _spPageContextInfo.webAbsoluteUrl + "/_api/web/lists/getbytitle('"+_spPageContextInfo.listTitle+"')/items("+WPQ2FormCtx.ItemAttributes.Id+")/RoleAssignments";
					var roleAddAssignUrl = roleAssignUrl + "/addRoleAssignment(principalid="+v.Member.Id+",roledefid=" + 1073741826 +")";

					if (v.Member.Title != "POC ICTD Teams Owners"){
						PermissionManager.AddReadPermission(roleAddAssignUrl).then(function(data){
							//console.log("Read assigned successfully.")					
						}).fail(function(errorObj,b,c){
							console.log(roleAddAssignUrl);
							console.log(errorObj);
						});
					}
					
					//Now Remove all existing permission
					var roleDefUrl = d2["odata.id"]+"/RoleDefinitionBindings";
					$.getJSON(roleDefUrl, function(d3){
						//console.log(d3);
						
						$.each(d3.value, function(i2,v2){
							//1073741826 is read permission Id, if not read permission remove
							if (v.Member.Title != "POC ICTD Teams Owners"){
								console.log("Group Title: "+v.Member.Title);
								if (v2.Id != 1073741826){
									var roleRemoveUrl = roleAssignUrl+"/removeRoleAssignment(principalid="+v.Member.Id+",roledefid=" + v2.Id +")";								
									PermissionManager.RemoveOtherPermission(roleRemoveUrl).then(function(d4){
										//console.log("Permission Removed");
									});
								}
							}
						});
					});
				});
			});
		});
	}
	return false;
}

$(document).ready(function(){
	PreSaveAction();
});

var PermissionManager = {
	Headers : {  
        "Accept": "application/json;odata=verbose",  
        "content-Type": "application/json;odata=verbose",  
        "X-RequestDigest": jQuery("#__REQUESTDIGEST").val()  
	}
	,BreakInheritance : function(){
		var postUrl = _spPageContextInfo.webAbsoluteUrl + "/_api/web/lists/getbytitle('"+_spPageContextInfo.listTitle+"')/items("+WPQ2FormCtx.ItemAttributes.Id+")/breakRoleInheritance(copyroleassignments=true,clearsubscopes=true)";
		return $.ajax({
			url: postUrl,
			type:"POST",
			headers:PermissionManager.Headers,
			dataType: 'json'
		})
	}
	, RoleAssignments: function(){
		var url = _spPageContextInfo.webAbsoluteUrl + "/_api/web/lists/getbytitle('"+_spPageContextInfo.listTitle+"')/items("+WPQ2FormCtx.ItemAttributes.Id+")/RoleAssignments";
		url +=  "?$select=Member/Title,Member/Id&$expand=Member";
		return $.getJSON(url);
	}
	, AddReadPermission: function(url){
		return $.ajax({
			url: url,
			type:"POST",
			headers:PermissionManager.Headers,
			dataType: 'json'
		});
	}
	, RemoveOtherPermission: function(url){
		return $.ajax({
			url: url,
			type:"POST",
			headers:PermissionManager.Headers,
			dataType: 'json',
			success: function(d){
				console.log(d);
			}
		});
	}
}