import { XMLElem } from "@/util/XmlElem";
import { UABaseNode, type UABaseNodeOptions } from "./UABaseNode";
import type { NamespaceTable } from "./NameSpaceTable";



export class UAVariable extends UABaseNode {


    constructor(options: UAVariableNodeOptions) {
                    super(options);
                    this.nodeClass="Variable";
    }

    static  fromXML(uaObject: any): UAVariable{
        const bn=super.fromXML(uaObject)
        return new UAVariable({nodeId: bn.nodeId, 
                                browseName: bn.browseName, 
                                displayName: bn.displayName, 
                                references: bn.references});
    }

    toXML(lnst:NamespaceTable, gnst:NamespaceTable): XMLElem {
        const nid=UABaseNode.localNodeId(this.nodeId, lnst, gnst);
        const elem =new XMLElem('UAVariable');
        elem.attr('NodeId', nid.toString())
            .attr('BrowseName', this.browseName)
            .elem('DisplayName', this.displayName);
        const refs=elem.add(new XMLElem('References'))
        for(const ref of this.references) {
            if(ref.fromNode.nodeId.toString()==this.nodeId.toString()) //on load resolveReferences() duplicates references to both sides. skip them for export
                refs.add(ref.toXML(lnst, gnst));
        }
        return elem;
    }
    }
}

export interface UAVariableNodeOptions extends UABaseNodeOptions{

}