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package gov.samhsa.acs.trypolicy.wsclient;

import gov.samhsa.acs.common.cxf.AbstractCXFLoggingConfigurerClient;
import gov.samhsa.acs.pep.ws.contract.TryPolicyPortType;
import gov.samhsa.acs.pep.ws.contract.TryPolicyService;
import gov.samhsa.acs.pep.ws.contract.TryPolicyService.TryPolicyPortTypeProxy;

import java.net.URL;

import javax.xml.namespace.QName;
import javax.xml.ws.BindingProvider;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.util.StringUtils;

/**
 * The Class TryPolicyWebServiceClient.
 */
public class TryPolicyWebServiceClient extends
		AbstractCXFLoggingConfigurerClient {

	/** The logger. */
	private final Logger logger = LoggerFactory.getLogger(this.getClass());

	/** The endpoint address. */
	private final String endpointAddress;

	/**
	 * Instantiates a new try policy web service client.
	 *
	 * @param endpointAddress
	 *            the endpoint address
	 */
	public TryPolicyWebServiceClient(String endpointAddress) {
		this.endpointAddress = endpointAddress;
	}

	/**
	 * Try policy.
	 *
	 * @param c32Xml
	 *            the c32 xml
	 * @param xacmlPolicy
	 *            the xacml policy
	 * @param purposeOfUse
	 *            the purpose of use
	 * @return the string
	 */
	public String tryPolicy(String c32Xml, String xacmlPolicy,
			String purposeOfUse) {
		try (TryPolicyPortTypeProxy port = createPort(this.endpointAddress)) {
			final String tryPolicy = tryPolicy(port, c32Xml, xacmlPolicy,
					purposeOfUse);
			return tryPolicy;
		} catch (final Exception e) {
			throw toTryPolicyWebServiceClientException(e);
		}
	}

	/**
	 * Creates the port.
	 *
	 * @param endpointAddress
	 *            the endpoint address
	 * @return the try policy port type proxy
	 */
	private TryPolicyPortTypeProxy createPort(String endpointAddress) {
		return configurePort(() -> createPortProxy(endpointAddress));
	}

	/**
	 * Creates the port.
	 *
	 * @return the try policy port type
	 */
	private TryPolicyPortTypeProxy createPortProxy() {
		final URL WSDL_LOCATION = this.getClass().getClassLoader()
				.getResource("TryPolicy.wsdl");
		final QName SERVICE = new QName(
				"http://acs.samhsa.gov/pep/ws/contract", "TryPolicyService");

		final TryPolicyPortTypeProxy port = new TryPolicyService(WSDL_LOCATION,
				SERVICE).getTryPolicyServicePort();

		return port;
	}

	/**
	 * Creates the port.
	 *
	 * @param endpointAddress
	 *            the endpoint address
	 * @return the try policy port type
	 */
	private TryPolicyPortTypeProxy createPortProxy(String endpointAddress) {
		final TryPolicyPortTypeProxy port = createPortProxy();
		if (StringUtils.hasText(endpointAddress)) {
			final BindingProvider bp = port;
			bp.getRequestContext().put(
					BindingProvider.ENDPOINT_ADDRESS_PROPERTY, endpointAddress);
		}
		return port;
	}

	/**
	 * To try policy web service client exception.
	 *
	 * @param exception
	 *            the exception
	 * @return the try policy web service client exception
	 */
	private TryPolicyWebServiceClientException toTryPolicyWebServiceClientException(
			Exception exception) {
		logger.error("Error closing TryPolicyWebServiceClient port");
		logger.error(exception.getMessage(), exception);
		return new TryPolicyWebServiceClientException(exception);
	}

	/**
	 * Try policy.
	 *
	 * @param port
	 *            the port
	 * @param c32Xml
	 *            the c32 xml
	 * @param xacmlPolicy
	 *            the xacml policy
	 * @param purposeOfUse
	 *            the purpose of use
	 * @return the string
	 */
	private String tryPolicy(TryPolicyPortType port, String c32Xml,
			String xacmlPolicy, String purposeOfUse) {
		return port.tryPolicy(c32Xml, xacmlPolicy, purposeOfUse);
	}
}