import {EwsServiceXmlWriter} from "../EwsServiceXmlWriter";
import {ExchangeService} from "../ExchangeService";
import {ExchangeVersion} from "../../Enumerations/ExchangeVersion";
import {InstallAppResponse} from "../Responses/InstallAppResponse";
import {XmlElementNames} from "../XmlElementNames";
import {XmlNamespace} from "../../Enumerations/XmlNamespace";

import {SimpleServiceRequestBase} from "./SimpleServiceRequestBase";
/**
 * @internal Represents a InstallApp request.
 * 
 * @sealed
 */
export class InstallAppRequest extends SimpleServiceRequestBase {

	/**
	 * The plain text manifest stream as base64 encoded string. 
	 */
	private manifestStream: string = null;

	/**
	 * Initializes a new instance of the **InstallAppRequest** class.
	 *
	 * @param   {ExchangeService}   service          The service.
	 * @param   {string}   			manifestStream   The manifest's plain text XML stream.
	 */
	constructor(service: ExchangeService, manifestStream: string) {
		super(service);
		this.manifestStream = manifestStream;
	}

	/**
     * @internal Executes this request.
     *
     * @return  {Promise<InstallAppResponse>}      Service response  :Promise.
     */
    Execute(): Promise<InstallAppResponse> {
		return this.InternalExecute().then((serviceResponse: InstallAppResponse) => {
            serviceResponse.ThrowIfNecessary();
            return serviceResponse;
        });
	}

	/**
	 * @internal Gets the request version.
	 *
	 * @return  {ExchangeVersion}      Earliest Exchange version in which this request is supported.
	 */
    GetMinimumRequiredServerVersion(): ExchangeVersion {
		return ExchangeVersion.Exchange2013;
	}

	/**
	 * @internal Gets the name of the response XML element.
	 *
	 * @return  {string}      XML element name.
	 */
    GetResponseXmlElementName(): string {
		return XmlElementNames.InstallAppResponse;
	}

	/**
	 * @internal Gets the name of the XML element.
	 *
	 * @return  {string}      XML element name.
	 */
    GetXmlElementName(): string {
		return XmlElementNames.InstallAppRequest;
	}

	/**
     * @internal Parses the response.
     *
     * @param   {any}   jsonBody   The js object response body.
     * @return  {any}              Response object.
     */
    ParseResponse(jsonBody: any): any {
		let response: InstallAppResponse = new InstallAppResponse();
		response.LoadFromXmlJsObject(jsonBody, this.Service);
		return response;
	}

	/**
	 * @internal Writes the elements to XML writer.
	 *
	 * @param   {EwsServiceXmlWriter}   writer   The writer.
	 */
    WriteElementsToXml(writer: EwsServiceXmlWriter): void {
		writer.WriteStartElement(XmlNamespace.Messages, XmlElementNames.Manifest);

		//writer.WriteBase64ElementValue(manifestStream);
		writer.WriteValue(this.manifestStream, null);

		writer.WriteEndElement();
	}
}