/*-
 * ============LICENSE_START=======================================================
 * SDC
 * ================================================================================
 * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
 * ================================================================================
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *      http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 * ============LICENSE_END=========================================================
 */

package org.openecomp.sdc.be.servlets;

import com.jcabi.aspects.Loggable;
import fj.data.Either;
import io.swagger.annotations.*;
import org.apache.commons.codec.binary.Base64;
import org.apache.commons.lang3.tuple.ImmutablePair;
import org.openecomp.sdc.be.components.impl.ArtifactsBusinessLogic;
import org.openecomp.sdc.be.components.impl.ArtifactsBusinessLogic.ArtifactOperationEnum;
import org.openecomp.sdc.be.config.BeEcompErrorManager;
import org.openecomp.sdc.be.dao.api.ActionStatus;
import org.openecomp.sdc.be.datatypes.enums.ComponentTypeEnum;
import org.openecomp.sdc.be.model.ArtifactDefinition;
import org.openecomp.sdc.be.model.ArtifactUiDownloadData;
import org.openecomp.sdc.be.model.Operation;
import org.openecomp.sdc.common.api.Constants;
import org.openecomp.sdc.common.log.wrappers.Logger;
import org.openecomp.sdc.exception.ResponseFormat;

import javax.inject.Singleton;
import javax.servlet.ServletContext;
import javax.servlet.http.HttpServletRequest;
import javax.ws.rs.*;
import javax.ws.rs.core.Context;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.Response;
import java.util.Map;
/**
 * Root resource (exposed at "/" path)
 */
@Loggable(prepend = true, value = Loggable.DEBUG, trim = false)
@Path("/v1/catalog")
@Api(value = "Resource Artifact Servlet", description = "Resource Artifact Servlet")
@Singleton
public class ArtifactServlet extends BeGenericServlet {

    private static final Logger log = Logger.getLogger(ArtifactServlet.class);

    // *************** Resources
    @POST
    @Path("/resources/{resourceId}/artifacts")
    @Consumes(MediaType.APPLICATION_JSON)
    @Produces(MediaType.APPLICATION_JSON)
    @ApiOperation(value = "Create Artifact", httpMethod = "POST", notes = "Returns created ArtifactDefinition", response = Response.class)
    @ApiResponses(value = { @ApiResponse(code = 201, message = "Resource created"), @ApiResponse(code = 403, message = "Restricted operation"), @ApiResponse(code = 400, message = "Invalid content / Missing content"),
            @ApiResponse(code = 409, message = "Artifact already exist") })
    public Response loadArtifact(@PathParam("resourceId") final String resourceId, @ApiParam(value = "json describe the artifact", required = true) String data, @Context final HttpServletRequest request) {

        String url = request.getMethod() + " " + request.getRequestURI();
        log.debug("Start handle request of {}" , url);
        try {
            return handleUploadRequest(data, request, resourceId, ComponentTypeEnum.RESOURCE);
        } catch (Exception e) {
            BeEcompErrorManager.getInstance().logBeRestApiGeneralError("loadArtifact");
            log.debug("loadArtifact unexpected exception", e);
            return buildErrorResponse(getComponentsUtils().getResponseFormat(ActionStatus.GENERAL_ERROR));
        }
    }

    @POST
    @Path("/resources/{resourceId}/artifacts/{artifactId}")
    @Consumes(MediaType.APPLICATION_JSON)
    @Produces(MediaType.APPLICATION_JSON)
    @ApiOperation(value = "Update Artifact", httpMethod = "POST", notes = "Returns updated artifact", response = Response.class)
    @ApiResponses(value = { @ApiResponse(code = 201, message = "Resource created"), @ApiResponse(code = 403, message = "Restricted operation"), @ApiResponse(code = 400, message = "Invalid content / Missing content") })
    public Response updateArtifact(@PathParam("resourceId") final String resourceId, @PathParam("artifactId") final String artifactId, @ApiParam(value = "json describe the artifact", required = true) String data,
            @Context final HttpServletRequest request) {

        String url = request.getMethod() + " " + request.getRequestURI();
        log.debug("Start handle request of {}" , url);
        try {
            return handleUpdateRequest(data, request, resourceId, artifactId, ComponentTypeEnum.RESOURCE);
        } catch (Exception e) {
            BeEcompErrorManager.getInstance().logBeRestApiGeneralError("updateArtifact");
            log.debug("updateArtifact unexpected exception", e);
            return buildErrorResponse(getComponentsUtils().getResponseFormat(ActionStatus.GENERAL_ERROR));
        }
    }

    @DELETE
    @Path("/resources/{resourceId}/artifacts/{artifactId}")
    @Consumes(MediaType.APPLICATION_JSON)
    @Produces(MediaType.APPLICATION_JSON)
    @ApiOperation(value = "Delete Artifact", httpMethod = "DELETE", notes = "Returns delete artifact", response = Response.class)
    @ApiResponses(value = { @ApiResponse(code = 201, message = "Resource created"), @ApiResponse(code = 403, message = "Restricted operation"), @ApiResponse(code = 400, message = "Invalid content / Missing content") })
    public Response deleteArtifact(@PathParam("resourceId") final String resourceId, @PathParam("artifactId") final String artifactId, @Context final HttpServletRequest request) {

        String url = request.getMethod() + " " + request.getRequestURI();
        log.debug("Start handle request of {}" , url);
        try {
            return handleDeleteRequest(request, resourceId, artifactId, ComponentTypeEnum.RESOURCE, null, null);
        } catch (Exception e) {
            log.debug("deleteArtifact unexpected exception", e);
            return buildErrorResponse(getComponentsUtils().getResponseFormat(ActionStatus.GENERAL_ERROR));
        }
    }

    // *************** Services
    @POST
    @Path("/services/{serviceId}/artifacts")
    @Consumes(MediaType.APPLICATION_JSON)
    @Produces(MediaType.APPLICATION_JSON)
    @ApiOperation(value = "Create Artifact", httpMethod = "POST", notes = "Returns created ArtifactDefinition", response = Response.class)
    @ApiResponses(value = { @ApiResponse(code = 201, message = "Resource created"), @ApiResponse(code = 403, message = "Restricted operation"), @ApiResponse(code = 400, message = "Invalid content / Missing content"),
            @ApiResponse(code = 409, message = "Artifact already exist") })
    public Response loadInformationArtifact(@PathParam("serviceId") final String serviceId, @ApiParam(value = "json describe the artifact", required = true) String data, @Context final HttpServletRequest request) {

        String url = request.getMethod() + " " + request.getRequestURI();
        log.debug("Start handle request of {}" , url);
        try {
            return handleUploadRequest(data, request, serviceId, ComponentTypeEnum.SERVICE);
        } catch (Exception e) {
            BeEcompErrorManager.getInstance().logBeRestApiGeneralError("loadInformationArtifact");
            log.debug("loadInformationArtifact unexpected exception", e);
            return buildErrorResponse(getComponentsUtils().getResponseFormat(ActionStatus.GENERAL_ERROR));
        }
    }

    @POST
    @Path("/services/{serviceId}/artifacts/{artifactId}")
    @Consumes(MediaType.APPLICATION_JSON)
    @Produces(MediaType.APPLICATION_JSON)
    @ApiOperation(value = "Update Artifact", httpMethod = "POST", notes = "Returns updated artifact", response = Response.class)
    @ApiResponses(value = { @ApiResponse(code = 201, message = "Service artifact created"), @ApiResponse(code = 403, message = "Restricted operation"), @ApiResponse(code = 400, message = "Invalid content / Missing content") })
    public Response updateInformationArtifact(@PathParam("serviceId") final String serviceId, @PathParam("artifactId") final String artifactId, @ApiParam(value = "json describe the artifact", required = true) String data,
            @Context final HttpServletRequest request) {

        String url = request.getMethod() + " " + request.getRequestURI();
        log.debug("Start handle request of {}" , url);
        try {
            return handleUpdateRequest(data, request, serviceId, artifactId, ComponentTypeEnum.SERVICE);
        } catch (Exception e) {
            BeEcompErrorManager.getInstance().logBeRestApiGeneralError("updateInformationArtifact");
            log.debug("updateInformationArtifact unexpected exception", e);
            return buildErrorResponse(getComponentsUtils().getResponseFormat(ActionStatus.GENERAL_ERROR));
        }
    }

    // *************** Services api artifacts
    @POST
    @Path("/services/{serviceId}/artifacts/api/{artifactId}")
    @Consumes(MediaType.APPLICATION_JSON)
    @Produces(MediaType.APPLICATION_JSON)
    @ApiOperation(value = "Update Api Artifact", httpMethod = "POST", notes = "Returns created ArtifactDefinition", response = Response.class)
    @ApiResponses(value = { @ApiResponse(code = 200, message = "Api Artifact Updated"), @ApiResponse(code = 403, message = "Restricted operation"), @ApiResponse(code = 400, message = "Invalid content / Missing content") })
    public Response updateApiArtifact(@PathParam("serviceId") final String serviceId, @PathParam("artifactId") final String artifactId, @ApiParam(value = "json describe the artifact", required = true) String data,
            @Context final HttpServletRequest request, @HeaderParam(value = Constants.USER_ID_HEADER) String userId, @HeaderParam(value = Constants.MD5_HEADER) String origMd5) {

        String url = request.getMethod() + " " + request.getRequestURI();
        log.debug("Start handle request of {}" , url);
        try {
            return handleUpdateRequest(data, request, serviceId, artifactId, ComponentTypeEnum.SERVICE);
        } catch (Exception e) {
            BeEcompErrorManager.getInstance().logBeRestApiGeneralError("updateApiArtifact");
            log.debug("updateApiArtifact unexpected exception", e);
            return buildErrorResponse(getComponentsUtils().getResponseFormat(ActionStatus.GENERAL_ERROR));
        }
    }

    @DELETE
    @Path("/services/{serviceId}/artifacts/api/{artifactId}")
    @Consumes(MediaType.APPLICATION_JSON)
    @Produces(MediaType.APPLICATION_JSON)
    @ApiOperation(value = "Delete Api Artifact", httpMethod = "DELETE", notes = "Returns Deleted ArtifactDefinition", response = Response.class)
    @ApiResponses(value = { @ApiResponse(code = 204, message = "Api Artifact deleted"), @ApiResponse(code = 403, message = "Restricted operation") })
    public Response deleteApiArtifact(@PathParam("serviceId") final String serviceId, @PathParam("artifactId") final String artifactId, @Context final HttpServletRequest request, @HeaderParam(value = Constants.USER_ID_HEADER) String userId,
            @HeaderParam(value = Constants.MD5_HEADER) String origMd5) {

        String url = request.getMethod() + " " + request.getRequestURI();
        log.debug("Start handle request of {}" , url);
        try {
            return handleDeleteRequest(request, serviceId, artifactId, ComponentTypeEnum.SERVICE, null, null);
        } catch (Exception e) {
            BeEcompErrorManager.getInstance().logBeRestApiGeneralError("deleteApiArtifact");
            log.debug("deleteApiArtifact unexpected exception", e);
            return buildErrorResponse(getComponentsUtils().getResponseFormat(ActionStatus.GENERAL_ERROR));
        }
    }

    @DELETE
    @Path("/services/{serviceId}/artifacts/{artifactId}")
    @Consumes(MediaType.APPLICATION_JSON)
    @Produces(MediaType.APPLICATION_JSON)
    @ApiOperation(value = "Delete Artifact", httpMethod = "DELETE", notes = "Returns delete artifact", response = Response.class)
    @ApiResponses(value = { @ApiResponse(code = 201, message = "Service artifact deleted"), @ApiResponse(code = 403, message = "Restricted operation"), @ApiResponse(code = 400, message = "Invalid content / Missing content") })
    public Response deleteInformationalArtifact(@PathParam("serviceId") final String serviceId, @PathParam("artifactId") final String artifactId, @Context final HttpServletRequest request) {

        String url = request.getMethod() + " " + request.getRequestURI();
        log.debug("Start handle request of {}" , url);
        try {
            return handleDeleteRequest(request, serviceId, artifactId, ComponentTypeEnum.SERVICE, null, null);
        } catch (Exception e) {
            BeEcompErrorManager.getInstance().logBeRestApiGeneralError("deleteInformationalArtifact");
            log.debug("deleteInformationalArtifact unexpected exception", e);
            return buildErrorResponse(getComponentsUtils().getResponseFormat(ActionStatus.GENERAL_ERROR));
        }
    }

    /*
     * DOWNLOAD Artifacts by json body in base 64 (because of userId problem with href)
     */

    @GET
    @Path("/services/{serviceId}/artifacts/{artifactId}")
    @Consumes(MediaType.APPLICATION_JSON)
    @Produces(MediaType.APPLICATION_JSON)
    @ApiOperation(value = "Download service Artifact in Base64", httpMethod = "GET", notes = "Returns downloaded artifact", response = Response.class)
    @ApiResponses(value = { @ApiResponse(code = 200, message = "Service artifact downloaded"), @ApiResponse(code = 404, message = "Service/Artifact not found") })
    public Response downloadServiceArtifactBase64(@PathParam("serviceId") final String serviceId, @PathParam("artifactId") final String artifactId, @Context final HttpServletRequest request) {

        String url = request.getMethod() + " " + request.getRequestURI();
        log.debug("Start handle request of {}" , url);
        try {
            return handleDownloadRequest(request, serviceId, artifactId, null, ComponentTypeEnum.SERVICE, null);
        } catch (Exception e) {
            BeEcompErrorManager.getInstance().logBeRestApiGeneralError("downloadServiceArtifactBase64");
            log.debug("downloadServiceArtifactBase64 unexpected exception", e);
            return buildErrorResponse(getComponentsUtils().getResponseFormat(ActionStatus.GENERAL_ERROR));
        }
    }

    @GET
    @Path("/resources/{resourceId}/artifacts/{artifactId}")
    @Consumes(MediaType.APPLICATION_JSON)
    @Produces(MediaType.APPLICATION_JSON)
    @ApiOperation(value = "Download resource Artifact in Base64", httpMethod = "GET", notes = "Returns downloaded artifact", response = Response.class)
    @ApiResponses(value = { @ApiResponse(code = 200, message = "Resource artifact downloaded"), @ApiResponse(code = 404, message = "Resource/Artifact not found") })
    public Response downloadResourceArtifactBase64(@PathParam("resourceId") final String resourceId, @PathParam("artifactId") final String artifactId, @Context final HttpServletRequest request) {

        String url = request.getMethod() + " " + request.getRequestURI();
        log.debug("Start handle request of {}" , url);
        try {
            return handleDownloadRequest(request, resourceId, artifactId, null, ComponentTypeEnum.RESOURCE, null);
        } catch (Exception e) {
            BeEcompErrorManager.getInstance().logBeRestApiGeneralError("downloadResourceArtifactBase64");
            log.debug("downloadResourceArtifactBase64 unexpected exception", e);
            return buildErrorResponse(getComponentsUtils().getResponseFormat(ActionStatus.GENERAL_ERROR));
        }
    }

    @GET
    @Path("/{containerComponentType}/{componentId}/resourceInstances/{componentInstanceId}/artifacts/{artifactId}")
    @Consumes(MediaType.APPLICATION_JSON)
    @Produces(MediaType.APPLICATION_JSON)
    @ApiOperation(value = "Download component Artifact in Base64", httpMethod = "GET", notes = "Returns downloaded artifact", response = Response.class)
    @ApiResponses(value = { @ApiResponse(code = 200, message = "ResourceInstance artifact downloaded"), @ApiResponse(code = 404, message = "ResourceInstance/Artifact not found") })
    public Response downloadResourceInstanceArtifactBase64(
            @ApiParam(value = "valid values: resources / services", allowableValues = ComponentTypeEnum.RESOURCE_PARAM_NAME + "," + ComponentTypeEnum.SERVICE_PARAM_NAME) @PathParam("containerComponentType") final String containerComponentType,
            @PathParam("componentId") final String componentId, @PathParam("componentInstanceId") final String componentInstanceId, @PathParam("artifactId") final String artifactId, @Context final HttpServletRequest request) {

        String url = request.getMethod() + " " + request.getRequestURI();
        log.debug("Start handle request of {}" , url);
        try {
            return handleDownloadRequest(request, componentInstanceId, artifactId, componentId, ComponentTypeEnum.RESOURCE_INSTANCE, containerComponentType);
        } catch (Exception e) {
            BeEcompErrorManager.getInstance().logBeRestApiGeneralError("downloadResourceInstanceArtifactBase64");
            log.debug("downloadResourceInstanceArtifactBase64 unexpected exception", e);
            return buildErrorResponse(getComponentsUtils().getResponseFormat(ActionStatus.GENERAL_ERROR));
        }
    }

    // *************** Resource lifecycle ( interfces )

    @POST
    @Path("/resources/{resourceId}/{interfaceType}/{operation}/artifacts")
    @Consumes(MediaType.APPLICATION_JSON)
    @Produces(MediaType.APPLICATION_JSON)
    @ApiOperation(value = "Create Artifact and Attach to interface", httpMethod = "POST", notes = "Returns created resource", response = Response.class)
    @ApiResponses(value = { @ApiResponse(code = 201, message = "Resource created"), @ApiResponse(code = 403, message = "Restricted operation"), @ApiResponse(code = 400, message = "Invalid content / Missing content"),
            @ApiResponse(code = 409, message = "Artifact already exist") })
    public Response loadArtifactToInterface(@PathParam("resourceId") final String resourceId, @PathParam("interfaceType") final String interfaceType, @PathParam("operation") final String operation,
            @HeaderParam(value = Constants.USER_ID_HEADER) String userId, @HeaderParam(value = Constants.MD5_HEADER) String origMd5, @ApiParam(value = "json describe the artifact", required = true) String data,
            @Context final HttpServletRequest request) {

        String url = request.getMethod() + " " + request.getRequestURI();
        log.debug("Start handle request of {}" , url);
        try {
            return handleArtifactRequest(data, request, resourceId, interfaceType, operation, null, ComponentTypeEnum.RESOURCE, ArtifactOperationEnum.CREATE, null, null);
        } catch (Exception e) {
            BeEcompErrorManager.getInstance().logBeRestApiGeneralError("loadArtifactToInterface");
            log.debug("loadArtifactToInterface unexpected exception", e);
            return buildErrorResponse(getComponentsUtils().getResponseFormat(ActionStatus.GENERAL_ERROR));
        }

    }

    @DELETE
    @Path("/resources/{resourceId}/{interfaceType}/{operation}/artifacts/{artifactId}")
    @Consumes(MediaType.APPLICATION_JSON)
    @Produces(MediaType.APPLICATION_JSON)
    @ApiOperation(value = "delete Artifact from interface", httpMethod = "delete", notes = "delete matching artifact from interface", response = Response.class)
    @ApiResponses(value = { @ApiResponse(code = 201, message = "delete artifact under interface deleted"), @ApiResponse(code = 403, message = "Restricted operation"), @ApiResponse(code = 400, message = "Invalid content / Missing content"),
            @ApiResponse(code = 409, message = "Artifact already exist") })
    public Response deleteArtifactToInterface(@PathParam("resourceId") final String resourceId, @PathParam("interfaceType") final String interfaceType, @PathParam("operation") final String operation, @PathParam("artifactId") final String artifactId,
            @Context final HttpServletRequest request) {

        String url = request.getMethod() + " " + request.getRequestURI();
        log.debug("Start handle request of {}" , url);
        try {
            return handleDeleteRequest(request, resourceId, artifactId, ComponentTypeEnum.RESOURCE, interfaceType, operation);
        } catch (Exception e) {
            BeEcompErrorManager.getInstance().logBeRestApiGeneralError("deleteArtifactToInterface");
            log.debug("deleteArtifactToInterface unexpected exception", e);
            return buildErrorResponse(getComponentsUtils().getResponseFormat(ActionStatus.GENERAL_ERROR));
        }
    }

    @POST
    @Path("/resources/{resourceId}/{interfaceType}/{operation}/artifacts/{artifactId}")
    @Consumes(MediaType.APPLICATION_JSON)
    @Produces(MediaType.APPLICATION_JSON)
    @ApiOperation(value = "update Artifact  Attach to interface", httpMethod = "post", notes = "updates artifact by interface", response = Response.class)
    @ApiResponses(value = { @ApiResponse(code = 201, message = "delete artifact under interface deleted"), @ApiResponse(code = 403, message = "Restricted operation"), @ApiResponse(code = 400, message = "Invalid content / Missing content"),
            @ApiResponse(code = 409, message = "Artifact already exist") })
    public Response updateArtifactToInterface(@PathParam("resourceId") final String resourceId, @PathParam("interfaceType") final String interfaceType, @PathParam("operation") final String operation, @PathParam("artifactId") final String artifactId,
            @HeaderParam(value = Constants.USER_ID_HEADER) String userId, @HeaderParam(value = Constants.MD5_HEADER) String origMd5, @Context final HttpServletRequest request,
            @ApiParam(value = "json describe the artifact", required = true) String data) {

        String url = request.getMethod() + " " + request.getRequestURI();
        log.debug("Start handle request of {}" , url);
        try {
            return handleArtifactRequest(data, request, resourceId, interfaceType, operation, artifactId, ComponentTypeEnum.RESOURCE, ArtifactOperationEnum.UPDATE, null, null);
        } catch (Exception e) {
            BeEcompErrorManager.getInstance().logBeRestApiGeneralError("updateArtifactToInterface");
            log.debug("updateArtifactToInterface unexpected exception", e);
            return buildErrorResponse(getComponentsUtils().getResponseFormat(ActionStatus.GENERAL_ERROR));
        }
    }

    @POST
    @Path("/{containerComponentType}/{componentId}/resourceInstance/{componentInstanceId}/artifacts/{artifactId}/heatParams")
    @Consumes(MediaType.APPLICATION_JSON)
    @Produces(MediaType.APPLICATION_JSON)
    @ApiOperation(value = "Update Resource Instance HEAT_ENV parameters", httpMethod = "POST", notes = "Returns updated artifact", response = Response.class)
    @ApiResponses(value = { @ApiResponse(code = 200, message = "Artifact updated"), @ApiResponse(code = 403, message = "Restricted operation"), @ApiResponse(code = 400, message = "Invalid content / Missing content") })
    public Response updateRIArtifact(
            @ApiParam(value = "valid values: resources / services", allowableValues = ComponentTypeEnum.RESOURCE_PARAM_NAME + "," + ComponentTypeEnum.SERVICE_PARAM_NAME) @PathParam("containerComponentType") final String containerComponentType,
            @PathParam("componentId") final String componentId, @PathParam("componentInstanceId") final String componentInstanceId, @PathParam("artifactId") final String artifactId,
            @ApiParam(value = "json describe the artifact", required = true) String data, @Context final HttpServletRequest request) {

        String url = request.getMethod() + " " + request.getRequestURI();
        log.debug("Start handle request of {}" , url);
        try {
            return handleArtifactRequest(data, request, componentInstanceId, null, null, artifactId, ComponentTypeEnum.RESOURCE_INSTANCE, ArtifactOperationEnum.UPDATE, componentId, containerComponentType);
        } catch (Exception e) {
            BeEcompErrorManager.getInstance().logBeRestApiGeneralError("updateRIArtifact");
            log.debug("updateRIArtifact unexpected exception", e);
            return buildErrorResponse(getComponentsUtils().getResponseFormat(ActionStatus.GENERAL_ERROR));
        }
    }

    @POST
    @Path("/{containerComponentType}/{componentId}/resourceInstance/{componentInstanceId}/artifacts/{artifactId}")
    @Consumes(MediaType.APPLICATION_JSON)
    @Produces(MediaType.APPLICATION_JSON)
    @ApiOperation(value = "Update Resource Instance artifact payload", httpMethod = "POST", notes = "Returns updated artifact", response = Response.class)
    @ApiResponses(value = { @ApiResponse(code = 200, message = "Artifact updated"), @ApiResponse(code = 403, message = "Restricted operation"), @ApiResponse(code = 400, message = "Invalid content / Missing content") })
    public Response updateComponentInstanceArtifact(@HeaderParam(value = Constants.USER_ID_HEADER) String userId, @HeaderParam(value = Constants.MD5_HEADER) String origMd5,
            @ApiParam(value = "valid values: resources / services", allowableValues = ComponentTypeEnum.RESOURCE_PARAM_NAME + "," + ComponentTypeEnum.SERVICE_PARAM_NAME) @PathParam("containerComponentType") final String containerComponentType,
            @PathParam("componentId") final String componentId, @PathParam("componentInstanceId") final String componentInstanceId, @PathParam("artifactId") final String artifactId,
            @ApiParam(value = "json describe the artifact", required = true) String data, @Context final HttpServletRequest request) {

        String url = request.getMethod() + " " + request.getRequestURI();
        log.debug("Start handle request of {}" , url);
        try {
            return handleArtifactRequest(data, request, componentInstanceId, null, null, artifactId, ComponentTypeEnum.RESOURCE_INSTANCE, ArtifactOperationEnum.UPDATE, componentId, containerComponentType);
        } catch (Exception e) {
            log.debug("loadResourceInstanceHeatEnvArtifact unexpected exception", e);
            return buildErrorResponse(getComponentsUtils().getResponseFormat(ActionStatus.GENERAL_ERROR));
        }
    }

    @POST
    @Path("/{containerComponentType}/{componentId}/resourceInstance/{componentInstanceId}/artifacts")
    @Consumes(MediaType.APPLICATION_JSON)
    @Produces(MediaType.APPLICATION_JSON)
    @ApiOperation(value = "Load Resource Instance artifact payload", httpMethod = "POST", notes = "Returns updated artifact", response = Response.class)
    @ApiResponses(value = { @ApiResponse(code = 200, message = "Artifact updated"), @ApiResponse(code = 403, message = "Restricted operation"), @ApiResponse(code = 400, message = "Invalid content / Missing content") })
    public Response loadComponentInstanceArtifact(@HeaderParam(value = Constants.USER_ID_HEADER) String userId, @HeaderParam(value = Constants.MD5_HEADER) String origMd5,
            @ApiParam(value = "valid values: resources / services", allowableValues = ComponentTypeEnum.RESOURCE_PARAM_NAME + "," + ComponentTypeEnum.SERVICE_PARAM_NAME) @PathParam("containerComponentType") final String containerComponentType,
            @PathParam("componentId") final String componentId, @PathParam("componentInstanceId") final String componentInstanceId, @ApiParam(value = "json describe the artifact", required = true) String data,
            @Context final HttpServletRequest request) {

        String url = request.getMethod() + " " + request.getRequestURI();
        log.debug("Start handle request of {}" , url);
        try {
            return handleArtifactRequest(data, request, componentInstanceId, null, null, null, ComponentTypeEnum.RESOURCE_INSTANCE, ArtifactOperationEnum.CREATE, componentId, containerComponentType);
        } catch (Exception e) {
            log.debug("loadResourceInstanceHeatEnvArtifact unexpected exception", e);
            return buildErrorResponse(getComponentsUtils().getResponseFormat(ActionStatus.GENERAL_ERROR));
        }
    }

    @DELETE
    @Path("/{containerComponentType}/{componentId}/resourceInstance/{componentInstanceId}/artifacts/{artifactId}")
    @Consumes(MediaType.APPLICATION_JSON)
    @Produces(MediaType.APPLICATION_JSON)
    @ApiOperation(value = "Delete Resource Instance artifact", httpMethod = "POST", notes = "Returns deleted artifact", response = Response.class)
    @ApiResponses(value = { @ApiResponse(code = 200, message = "Artifact updated"), @ApiResponse(code = 403, message = "Restricted operation"), @ApiResponse(code = 400, message = "Invalid content / Missing content") })
    public Response deleteComponentInstanceArtifact(@HeaderParam(value = Constants.USER_ID_HEADER) String userId, @HeaderParam(value = Constants.MD5_HEADER) String origMd5,
            @ApiParam(value = "valid values: resources / services", allowableValues = ComponentTypeEnum.RESOURCE_PARAM_NAME + "," + ComponentTypeEnum.SERVICE_PARAM_NAME) @PathParam("containerComponentType") final String containerComponentType,
            @PathParam("componentId") final String componentId, @PathParam("componentInstanceId") final String componentInstanceId, @PathParam("artifactId") final String artifactId,
            @ApiParam(value = "json describe the artifact", required = true) String data, @Context final HttpServletRequest request) {

        String url = request.getMethod() + " " + request.getRequestURI();
        log.debug("Start handle request of {}" , url);
        try {
            return handleDeleteRequest(request, componentInstanceId, artifactId, ComponentTypeEnum.RESOURCE_INSTANCE, null, null, componentId);
        } catch (Exception e) {
            log.debug("deleteArtifact unexpected exception", e);
            return buildErrorResponse(getComponentsUtils().getResponseFormat(ActionStatus.GENERAL_ERROR));
        }
    }


    @GET
    @Path("/{containerComponentType}/{componentId}/artifactsByType/{artifactGroupType}")
    @Consumes(MediaType.APPLICATION_JSON)
    @Produces(MediaType.APPLICATION_JSON)
    @ApiOperation(value = "Get component Artifacts", httpMethod = "GET", notes = "Returns artifacts", response = Response.class)
    @ApiResponses(value = { @ApiResponse(code = 200, message = "Component artifacts"), @ApiResponse(code = 404, message = "Resource/Artifact not found") })
    public Response getComponentArtifacts(
            @ApiParam(value = "valid values: resources / services", allowableValues = ComponentTypeEnum.RESOURCE_PARAM_NAME + "," + ComponentTypeEnum.SERVICE_PARAM_NAME) @PathParam("containerComponentType") final String containerComponentType,
            @PathParam("componentId") final String componentId, @PathParam("artifactGroupType") final String artifactGroupType, @Context final HttpServletRequest request) {

        String url = request.getMethod() + " " + request.getRequestURI();
        log.debug("Start handle request of {}" , url);
        try {
            return handleGetArtifactsRequest(request, componentId, null, artifactGroupType, containerComponentType);
        } catch (Exception e) {
            BeEcompErrorManager.getInstance().logBeRestApiGeneralError("downloadResourceInstanceArtifactBase64");
            log.debug("downloadResourceInstanceArtifactBase64 unexpected exception", e);
            return buildErrorResponse(getComponentsUtils().getResponseFormat(ActionStatus.GENERAL_ERROR));
        }
    }

    @GET
    @Path("/{containerComponentType}/{componentId}/resourceInstances/{componentInstanceId}/artifactsByType/{artifactGroupType}")
    @Consumes(MediaType.APPLICATION_JSON)
    @Produces(MediaType.APPLICATION_JSON)
    @ApiOperation(value = "Get component Artifacts", httpMethod = "GET", notes = "Returns artifacts", response = Response.class)
    @ApiResponses(value = { @ApiResponse(code = 200, message = "Component artifacts"), @ApiResponse(code = 404, message = "Resource/Artifact not found") })
    public Response getComponentInstanceArtifacts(
            @ApiParam(value = "valid values: resources / services", allowableValues = ComponentTypeEnum.RESOURCE_PARAM_NAME + "," + ComponentTypeEnum.SERVICE_PARAM_NAME) @PathParam("containerComponentType") final String containerComponentType,
            @PathParam("componentId") final String componentId,  @PathParam("componentInstanceId") final String componentInstanceId,  @PathParam("artifactGroupType") final String artifactGroupType, @Context final HttpServletRequest request) {

        String url = request.getMethod() + " " + request.getRequestURI();
        log.debug("Start handle request of {}" , url);
        try {
            return handleGetArtifactsRequest(request,componentInstanceId , componentId, artifactGroupType, containerComponentType);
        } catch (Exception e) {
            BeEcompErrorManager.getInstance().logBeRestApiGeneralError("downloadResourceInstanceArtifactBase64");
            log.debug("downloadResourceInstanceArtifactBase64 unexpected exception", e);
            return buildErrorResponse(getComponentsUtils().getResponseFormat(ActionStatus.GENERAL_ERROR));
        }
    }


    // ////////// API END ///////////////////////////

    // ************ private *********************

    private Response handleUploadRequest(String data, HttpServletRequest request, String componentId, ComponentTypeEnum componentType) {
        return handleArtifactRequest(data, componentId, null, componentType, ArtifactOperationEnum.CREATE);
    }

    private Response handleUpdateRequest(String data, HttpServletRequest request, String componentId, String artifactId, ComponentTypeEnum componentType) {
        return handleArtifactRequest(data, componentId, artifactId, componentType, ArtifactOperationEnum.UPDATE);
    }

    private Response handleDownloadRequest(HttpServletRequest request, String componentId, String artifactId, String parentId, ComponentTypeEnum componentType, String containerComponentType) {
        String userId = request.getHeader(Constants.USER_ID_HEADER);
        ServletContext context = request.getSession().getServletContext();
        ArtifactsBusinessLogic artifactsLogic = getArtifactBL(context);
        Either<ImmutablePair<String, byte[]>, ResponseFormat> actionResult = artifactsLogic.handleDownloadRequestById(componentId, artifactId, userId, componentType, parentId, containerComponentType);

        Response response;
        if (actionResult.isRight()) {
            response = buildErrorResponse(actionResult.right().value());
        } else {
            byte[] file = actionResult.left().value().getRight();
            String base64Contents = new String(Base64.encodeBase64(file));
            String artifactName = actionResult.left().value().getLeft();
            ResponseFormat responseFormat = getComponentsUtils().getResponseFormat(ActionStatus.OK);
            ArtifactUiDownloadData artifactUiDownloadData = new ArtifactUiDownloadData();
            artifactUiDownloadData.setArtifactName(artifactName);
            artifactUiDownloadData.setBase64Contents(base64Contents);
            response = buildOkResponse(responseFormat, artifactUiDownloadData);
        }
        return response;
    }

    private Response handleGetArtifactsRequest(HttpServletRequest request, String componentId, String parentId, String artifactGroupType, String containerComponentType) {
        String userId = request.getHeader(Constants.USER_ID_HEADER);
        ServletContext context = request.getSession().getServletContext();
        ArtifactsBusinessLogic artifactsLogic = getArtifactBL(context);
        ComponentTypeEnum componentTypeEnum  = parentId == null || parentId.isEmpty()? ComponentTypeEnum.findByParamName(containerComponentType): ComponentTypeEnum.RESOURCE_INSTANCE;
        Either<Map<String, ArtifactDefinition>, ResponseFormat> actionResult = artifactsLogic.handleGetArtifactsByType(containerComponentType, parentId, componentTypeEnum, componentId, artifactGroupType, userId);

        Response response;
        if (actionResult.isRight()) {
            response = buildErrorResponse(actionResult.right().value());
        } else {

            response =  buildOkResponse(getComponentsUtils().getResponseFormat(ActionStatus.OK), actionResult.left().value());
        }

        return response;
    }


    private Response handleDeleteRequest(HttpServletRequest request, String componentId, String artifactId, ComponentTypeEnum componentType, String interfaceType, String operationName) {
        return handleDeleteRequest(request, componentId, artifactId, componentType, interfaceType, operationName, null);
    }

    private Response handleDeleteRequest(HttpServletRequest request, String componentId, String artifactId, ComponentTypeEnum componentType, String interfaceType, String operationName, String parentId) {
        String userId = request.getHeader(Constants.USER_ID_HEADER);
        ServletContext context = request.getSession().getServletContext();
        ArtifactsBusinessLogic artifactsLogic = getArtifactBL(context);
        Either<Either<ArtifactDefinition, Operation>, ResponseFormat> actionResult = artifactsLogic.handleArtifactRequest(componentId, userId, componentType, artifactsLogic.new ArtifactOperationInfo (false, false, ArtifactOperationEnum.DELETE), artifactId, null, null, null, interfaceType, operationName,
                parentId, null);
        Response response;
        if (actionResult.isRight()) {
            response = buildErrorResponse(actionResult.right().value());
        } else {
            Either<ArtifactDefinition, Operation> result = actionResult.left().value();
            if (result.isLeft()) {
                response = buildOkResponse(getComponentsUtils().getResponseFormat(ActionStatus.OK), result.left().value());
            } else {
                response = buildOkResponse(getComponentsUtils().getResponseFormat(ActionStatus.OK), result.right().value());
            }
        }
        return response;

    }

    private Response handleArtifactRequest(String data, HttpServletRequest request, String componentId, String interfaceName, String operationName, String artifactId, ComponentTypeEnum componentType, ArtifactOperationEnum operationEnum, String parentId,
            String containerComponentType) {
        ArtifactDefinition artifactInfo = RepresentationUtils.convertJsonToArtifactDefinition(data, ArtifactDefinition.class);
        String origMd5 = request.getHeader(Constants.MD5_HEADER);

        String userId = request.getHeader(Constants.USER_ID_HEADER);

        ServletContext context = request.getSession().getServletContext();
        ArtifactsBusinessLogic artifactsLogic = getArtifactBL(context);
        Either<Either<ArtifactDefinition, Operation>, ResponseFormat> actionResult = artifactsLogic.handleArtifactRequest(componentId, userId, componentType,
                artifactsLogic.new ArtifactOperationInfo (false, false,operationEnum), artifactId, artifactInfo, origMd5, data, interfaceName, operationName, parentId,
                containerComponentType);
        Response response;
        if (actionResult.isRight()) {
            response = buildErrorResponse(actionResult.right().value());
        } else {
            Either<ArtifactDefinition, Operation> result = actionResult.left().value();
            if (result.isLeft()) {
                response = buildOkResponse(getComponentsUtils().getResponseFormat(ActionStatus.OK), result.left().value());
            } else {
                response = buildOkResponse(getComponentsUtils().getResponseFormat(ActionStatus.OK), result.right().value());
            }
        }
        return response;

    }

    private Response handleArtifactRequest(String data, String componentId, String artifactId, ComponentTypeEnum componentType, ArtifactOperationEnum operation) {
        return handleArtifactRequest(data, servletRequest, componentId, null, null, artifactId, componentType, operation, null, null);
    }

}