package net.curisit.securis.services;

import java.io.IOException;
import java.net.URI;
import java.text.MessageFormat;

import javax.inject.Named;
import javax.servlet.http.HttpServletRequest;
import javax.ws.rs.DefaultValue;
import javax.ws.rs.GET;
import javax.ws.rs.Path;
import javax.ws.rs.PathParam;
import javax.ws.rs.Produces;
import javax.ws.rs.QueryParam;
import javax.ws.rs.core.Context;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.Response;

import net.curisit.integrity.beans.ServerConfigVersions;
import net.curisit.integrity.beans.ServiceResponse;

import org.apache.commons.io.IOUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

// The Java class will be hosted at the URI path "/myresource"
@Path("/license")
public class LicenseServices {

	// private LicenseHelper licenseHelper = InjectorFactory.getInjector().getInstance(LicenseHelper.class);
	private static final Logger log = LoggerFactory.getLogger(LicenseServices.class);

	private static final int DEFAULT_LICENSE_EXPIRATION = 365;
	private static final String LICENSE_STRING = "CurisIntegrity Config Server v{0}.{1}";

	@com.google.inject.Inject
	@Named("base-uri")
	private URI uri;

	public LicenseServices() {
	}

	/**
	 * 
	 * @return the server version in format majorVersion.minorVersion
	 */
	@GET
	@Produces(
		{ MediaType.TEXT_HTML })
	public Response index() {
		try {
			String index = IOUtils.toString(this.getClass().getResourceAsStream("/static/index.html"));
			return Response.ok().entity(index).build();
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		return Response.ok().entity(MessageFormat.format(LICENSE_STRING, 0, 1)).build();
	}

	@GET
	@Path("/dummy")
	@Produces(
		{ MediaType.TEXT_PLAIN })
	public Response dummy(@Context HttpServletRequest request) {
		log.info("Request: " + request.getPathInfo());
		return Response.ok().entity((uri == null)).build();
	}

	/**
	 * @return the version of the three entities that can be synchronized (Users, DataSet and Settings)
	 */
	@GET
	@Path("/current/{license}")
	@Produces(
		{ MediaType.APPLICATION_JSON })
	public ServiceResponse<ServerConfigVersions> status(@PathParam("license") String license, @DefaultValue("-1") @QueryParam("minorVersion") int minorVersion, @DefaultValue("-1") @QueryParam("majorVersion") int majorVersion) {

		log.info("Called 'current' service with license: {}", license);
		ServiceResponse<ServerConfigVersions> response = new ServiceResponse<ServerConfigVersions>();

		return response;
	}
	//
	// private <T> ServiceResponse<T> buildErrorResponse(ServiceResponse<T> response, String msgErrorCode) {
	// response.setSuccess(false);
	// response.setErrorMessage(localManager.getString(msgErrorCode));
	// response.setErrorMessageCode(msgErrorCode);
	// return response;
	// }
	//
	// private Date calculateCaducation() {
	// Integer licenseExpiration = systemParams.getParamAsInt(SystemParams.Keys.CONFIG_SERVER_LICENSE_EXPIRATION);
	// if (licenseExpiration == null)
	// licenseExpiration = DEFAULT_LICENSE_EXPIRATION;
	// return Utils.addDays(new Date(), licenseExpiration);
	// }
	//
	// private boolean validateLicense(String license) {
	// BasicApplication ba = basicApplicationDao.findByLicense(license);
	// return (ba != null);
	// }
	//
	// private boolean validateVersion(int minorVersion, int majorVersion) {
	// return (versionManager.getMajorVersion() == majorVersion);
	// }
	//
	// private BasicApplication findBasicApp(String license) {
	// BasicApplication ba = basicApplicationDao.findByLicense(license);
	// return ba;
	// }
	//
	// private License generateLicense() {
	// // TODO complete all field of the license
	// License license = new License();
	// license.setCustomerCode(systemParams.getParam(SystemParams.Keys.CONFIG_COMMON_CUSTOMER_CODE));
	// license.setCSCode(systemParams.getParam(SystemParams.Keys.CONFIG_COMMON_CS_CODE));
	// license.setCRCLogo("00000000");
	// license.setExpirationDate(calculateCaducation());
	// license.setInstallCode(codeGenerator.generateInstalationNumber());
	// return license;
	// }

}