var workspace = Library("workspace")
var app = Application.currentApplication()
app.includeStandardAdditions = true
 
var response = app.displayDialog("Enter New Workspace Name", {
    defaultAnswer: "",
    withIcon: "note",
    buttons: ["Cancel", "Continue"],
    defaultButton: "Continue"
})

var selectedWorkspaceName = response.textReturned

var allWorkspaceNames = workspace.getNames()

for (var i = 0; i < allWorkspaceNames.length; i++) {
	if(allWorkspaceNames[i] == selectedWorkspaceName){
		var response = app.displayDialog(" Workspace name already used. Please choose another", {
		    defaultAnswer: "",
		    withIcon: "note"
		})		
	}
}

var selectedWorkspaceProps = { Safari: [] }
workspace.saveProperties(selectedWorkspaceName, selectedWorkspaceProps)

workspace.addNewWindowTo(selectedWorkspaceName)

// Result: {"buttonReturned":"Continue", "textReturned":"Jen"}
// app.displayDialog("Hello, " + (response.textReturned) + ".")