export class SkwHttpProvider{
    static _counter:number = 0;
    
    static STATUS_ERROR:number      = 0;
    static STATUS_OK:number         = 1;
    static STATUS_INFO:number       = 2;
    static STATUS_TIMEOUT:number    = 3;
    static STATUS_CANCELED:number   = 4;    
    
    public static callService(serviceName: string, content: Object): Promise<Object>{
        return new Promise<Object>((resolve, reject) => {
            const host:string = "http://192.168.1.218:8503/mge/";
            const appName:string = "ListaTarefa";
            let module = 'mge';
            this._counter++;

            if (serviceName.indexOf("@") > -1) {
                const s = serviceName.split("@");
                module = s[0];
                serviceName = s[1];
            }

            const url = `${host}/${module}/service.sbr?serviceName=${serviceName}&counter=${this._counter}&application=${appName}&outputType=json&preventTransform=false`;

            const requestContent = {
                serviceName: serviceName,
                requestBody: content
            };

            const headers = new Headers();

            headers.append("Content-Type", "application/json")
            //headers.append("Access-Control-Allow-Methods", "GET, POST, OPTIONS, PUT, PATCH, DELETE");
            //headers.append("Access-Control-Allow-Origin", "Access-Control-Allow-Headers, Origin,Accept, X-Requested-With, Content-Type, Access-Control-Request-Method, Access-Control-Request-Headers");

            fetch(url, {
                body: JSON.stringify(requestContent),
                method: 'POST',
                headers: headers
            })
            .then( res => res.json())
            .then( (data) => {
                console.log(data);
            });

            /*HttpProvider.post(url, requestContent, headers)
            .then(res => {
                if (!res.hasOwnProperty('status') ||
                    res.status == this.STATUS_ERROR ||
                    res.status == this.STATUS_TIMEOUT) {

                    let statusMessage = res.statusMessage;
                    
                    if (!statusMessage) {
                        statusMessage = 'Erro não identificado.'
                    }
                    //TODO: No futuro, exibir mensagens de erro. (MessageUtils.showError)
                    reject(new Error(statusMessage));
                }else if (res.status == this.STATUS_CANCELED) {
                    if (res.statusMessage){
                        console.warn(res.statusMessage);
                    }
                }else{
                    resolve(res);
                }

                if (res.status == this.STATUS_INFO) {
                     //TODO: No futuro, exibir mensagens de erro. (MessageUtils.showAlert)
                    console.info(res.statusMessage);
                }
            })
            .catch((e)=>{reject(e)});*/
        })
    }
}