import { parseXml } from "./parseXml";
import { xml2json } from "./xml2json";
import { NativeModules } from 'react-native';

const dsa = NativeModules.DSAServices;

/**
 * 呼叫 Service。
 * @param contract 
 * @param serviceName 
 * @param body 
 */
export function send(contract, serviceName, body ): Promise<any> {

    return new Promise((resolve, reject) => {
        let rootName = "Request";
        let xmlreq = "<Request/>";
        if (body) {
            for (const root in body) {
                rootName = root;
                break;
            }
            let xmlparser = parseXml.CreateParser();
            xmlreq = xmlparser.parse(body[rootName], rootName); //xml2json.parse(body)
        }

        dsa.call(contract, serviceName, xmlreq, (err, rsp) => {
            if (err) {
                const jsonrsp1 = xml2json.parse(err);

                reject(jsonrsp1);
            } else {
                let jsonrsp = xml2json.parse(rsp);

                if(jsonrsp.error) {
                    reject(jsonrsp);
                } else {
                    resolve(jsonrsp);
                }
            }
        });
    })
}