package eu.dnetlib.openaire.usermanagement.api;

import com.google.gson.JsonArray;
import com.google.gson.JsonElement;
import com.google.gson.JsonObject;
import com.google.gson.JsonParser;
import eu.dnetlib.openaire.user.pojos.RoleVerification;
import eu.dnetlib.openaire.user.utils.EmailSender;
import eu.dnetlib.openaire.usermanagement.utils.AuthorizationService;
import eu.dnetlib.openaire.usermanagement.utils.JsonUtils;
import eu.dnetlib.openaire.usermanagement.utils.RoleManagement;
import eu.dnetlib.openaire.usermanagement.utils.VerificationUtils;
import org.apache.log4j.Logger;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.HttpStatus;
import org.springframework.security.access.prepost.PreAuthorize;
import org.springframework.stereotype.Component;
import org.springframework.web.bind.annotation.CrossOrigin;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.client.HttpClientErrorException;

import javax.mail.MessagingException;
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;

@Component(value = "RegistryService")
@CrossOrigin("*")
@Path("/registry")
public class RegistryService {

    private static final Logger logger = Logger.getLogger(RegistryService.class);

    @Autowired
    private RoleManagement calls;

    @Autowired
    private JsonUtils jsonUtils;

    @Autowired
    private VerificationUtils verificationUtils;

    @Autowired
    private EmailSender emailSender;

    @Autowired
    private AuthorizationService authorizationService;

    /**
     * Subscribe to a type(Community, etc.) with id(ee, egi, etc.)
     */
    @Path("/subscribe/{type}/{id}")
    @POST
    @Produces(MediaType.APPLICATION_JSON)
    @PreAuthorize("isAuthenticated() and @AuthorizationService.isCommunity(#type)")
    public Response subscribe(@PathParam("type") String type, @PathParam("id") String id, @Context final HttpServletRequest request) {
        try {
            JsonElement response = calls.assignMemberRole(type, id, request);
            return Response.status(HttpStatus.OK.value()).entity(response.toString()).type(MediaType.APPLICATION_JSON).build();
        } catch (HttpClientErrorException e) {
            String message = new JsonParser().parse(e.getResponseBodyAsString()).getAsJsonObject().get("message").getAsString();
            return Response.status(e.getStatusCode().value()).entity(jsonUtils.createResponse(message).toString()).type(MediaType.APPLICATION_JSON).build();
        }
    }

    /**
     * Unsubscribe from type(Community, etc.) with id(ee, egi, etc.).
     * If user has manager role for this entity, it will be removed too.
     */
    @Path("/unsubscribe/{type}/{id}")
    @POST
    @Produces(MediaType.APPLICATION_JSON)
    @PreAuthorize("isAuthenticated() and @AuthorizationService.isCommunity(#type)")
    public Response unsubscribe(@PathParam("type") String type, @PathParam("id") String id, @Context final HttpServletRequest request) {
        try {
            JsonElement response = calls.removeMemberRole(type, id, request);
            return Response.status(HttpStatus.OK.value()).entity(response.toString()).type(MediaType.APPLICATION_JSON).build();
        } catch (HttpClientErrorException e) {
            String message = new JsonParser().parse(e.getResponseBodyAsString()).getAsJsonObject().get("message").getAsString();
            return Response.status(e.getStatusCode().value()).entity(jsonUtils.createResponse(message).toString()).type(MediaType.APPLICATION_JSON).build();
        }
    }

    /**
     * Create a new curator role with the given type(Community, etc.).
     **/
    @Path("/create/{type}")
    @POST
    @Produces(MediaType.APPLICATION_JSON)
    @PreAuthorize("hasAnyAuthority(@AuthorizationService.PORTAL_ADMIN)")
    public Response createCuratorRole(@PathParam("type") String type) {
        try {
            JsonElement response = calls.createCuratorRole(type);
            return Response.status(HttpStatus.CREATED.value()).entity(response.toString()).type(MediaType.APPLICATION_JSON).build();
        } catch (HttpClientErrorException e) {
            String message = new JsonParser().parse(e.getResponseBodyAsString()).getAsJsonObject().get("message").getAsString();
            return Response.status(e.getStatusCode().value()).entity(jsonUtils.createResponse(message).toString()).type(MediaType.APPLICATION_JSON).build();
        }
    }

    /**
     * Create a new role with the given type(Community, etc.) with id(ee, egi, etc.).
     **/
    @Path("/create/{type}/{id}")
    @POST
    @Produces(MediaType.APPLICATION_JSON)
    @PreAuthorize("hasAnyAuthority(@AuthorizationService.PORTAL_ADMIN, @AuthorizationService.curator(#type))")
    public Response createMemberRole(@PathParam("type") String type, @PathParam("id") String id) {
        JsonElement element = null;
        Response response = null;
        try {
            if(type.equals("ri") || type.equals("community")) {
                element = calls.createMemberRole("ri", id);
            } else {
                element = calls.createMemberRole(type, id);
            }
        } catch (HttpClientErrorException e) {
            String message = new JsonParser().parse(e.getResponseBodyAsString()).getAsJsonObject().get("message").getAsString();
            response = Response.status(e.getStatusCode().value()).entity(jsonUtils.createResponse(message).toString()).type(MediaType.APPLICATION_JSON).build();
        } finally {
            try {
                if(type.equals("ri") || type.equals("community")) {
                    element = calls.createMemberRole("community", id);
                }
                if(element != null) {
                    response = Response.status(HttpStatus.CREATED.value()).entity(element.toString()).type(MediaType.APPLICATION_JSON).build();
                }
            } catch (HttpClientErrorException e) {
                String message = new JsonParser().parse(e.getResponseBodyAsString()).getAsJsonObject().get("message").getAsString();
                response = Response.status(e.getStatusCode().value()).entity(jsonUtils.createResponse(message).toString()).type(MediaType.APPLICATION_JSON).build();
            }
        }
        return response;
    }

    /**
     * Invite user with email to manage a type(Community, etc.) with id(ee, egi, etc.)
     * Auto generated link and code will be sent as response.
     */
    @Path("/invite/{type}/{id}/manager")
    @POST
    @Produces(MediaType.APPLICATION_JSON)
    @PreAuthorize("hasAnyAuthority(@AuthorizationService.PORTAL_ADMIN, " +
            "@AuthorizationService.curator(#type), @AuthorizationService.manager(#type, #id))")
    public Response inviteManager(@PathParam("type") String type, @PathParam("id") String id, @RequestBody String body) {
        try {
            JsonObject details = new JsonParser().parse(body).getAsJsonObject();
            JsonObject email = details.get("email").getAsJsonObject();
            String recipient = email.get("recipient").getAsString();
            if (!calls.isManager(type, id, recipient)) {
                JsonObject invitation = verificationUtils.createManagerInvitation(recipient, type, id);
                return sendEmail(details, email, invitation);
            } else {
                return Response.status(HttpStatus.CONFLICT.value()).entity(jsonUtils.createResponse("User has been already manager of this " + type).toString()).type(MediaType.APPLICATION_JSON).build();
            }
        } catch (HttpClientErrorException e) {
            String message = new JsonParser().parse(e.getResponseBodyAsString()).getAsJsonObject().get("message").getAsString();
            return Response.status(e.getStatusCode().value()).entity(jsonUtils.createResponse(message).toString()).type(MediaType.APPLICATION_JSON).build();
        }
    }

    /**
     * Invite user with email to be a member of a type(Community, etc.) with id(ee, egi, etc.)
     * Auto generated link and code will be sent as response.
     */
    @Path("/invite/{type}/{id}/member")
    @POST
    @Produces(MediaType.APPLICATION_JSON)
    @PreAuthorize("hasAnyAuthority(@AuthorizationService.PORTAL_ADMIN, " +
            "@AuthorizationService.curator(#type), @AuthorizationService.manager(#type, #id))")
    public Response inviteMember(@PathParam("type") String type, @PathParam("id") String id, @RequestBody String body) {
        try {
            JsonObject details = new JsonParser().parse(body).getAsJsonObject();
            JsonObject email = details.get("email").getAsJsonObject();
            String recipient = email.get("recipient").getAsString();
            if (!calls.isMember(type, id, recipient)) {
                JsonObject invitation = verificationUtils.createMemberInvitation(recipient, type, id);
                return sendEmail(details, email, invitation);
            } else {
                return Response.status(HttpStatus.CONFLICT.value()).entity(jsonUtils.createResponse("User has been already member of this " + type).toString()).type(MediaType.APPLICATION_JSON).build();
            }
        } catch (HttpClientErrorException e) {
            String message = new JsonParser().parse(e.getResponseBodyAsString()).getAsJsonObject().get("message").getAsString();
            return Response.status(e.getStatusCode().value()).entity(jsonUtils.createResponse(message).toString()).type(MediaType.APPLICATION_JSON).build();
        }
    }

    private Response sendEmail(JsonObject details, JsonObject email, JsonObject invitation) {
        String link = details.get("link").getAsString() + invitation.get("link").getAsString();
        String subject = email.get("subject").getAsString();
        String message = email.get("body").getAsString().
                replace("((__user__))", "User").
                replace("((__link__))", link).
                replace("((__code__))", invitation.get("code").getAsString());
        try {
            emailSender.sendEmail(email.get("recipient").getAsString(), subject, message);
            return Response.status(HttpStatus.OK.value()).entity(jsonUtils.createResponse(invitation).toString()).type(MediaType.APPLICATION_JSON).build();
        } catch (MessagingException e) {
            verificationUtils.deleteVerification(invitation.get("link").getAsString());
            return Response.status(HttpStatus.BAD_REQUEST.value()).entity(jsonUtils.createResponse("Email sent failed").toString()).type(MediaType.APPLICATION_JSON).build();
        }
    }

    /**
     * Cancel invitation to user with email for managing a type(Community, etc.) with id(ee, egi, etc.)
     */
    @Path("/invite/{type}/{id}/manager/{email}")
    @DELETE
    @Produces(MediaType.APPLICATION_JSON)
    @PreAuthorize("hasAnyAuthority(@AuthorizationService.PORTAL_ADMIN, " +
            "@AuthorizationService.curator(#type), @AuthorizationService.manager(#type, #id))")
    public Response cancelManagerInvitations(@PathParam("type") String type, @PathParam("id") String id, @PathParam("email") String email) {
        verificationUtils.deleteManagerVerifications(email, type, id);
        return Response.status(HttpStatus.OK.value()).entity(jsonUtils.createResponse("Invitations have been deleted").toString()).type(MediaType.APPLICATION_JSON).build();
    }

    /**
     * Cancel invitation to user with email for being member of a type(Community, etc.) with id(ee, egi, etc.)
     */
    @Path("/invite/{type}/{id}/member/{email}")
    @DELETE
    @Produces(MediaType.APPLICATION_JSON)
    @PreAuthorize("hasAnyAuthority(@AuthorizationService.PORTAL_ADMIN, " +
            "@AuthorizationService.curator(#type), @AuthorizationService.manager(#type, #id))")
    public Response cancelMemberInvitations(@PathParam("type") String type, @PathParam("id") String id, @PathParam("email") String email) {
        verificationUtils.deleteMemberVerifications(email, type, id);
        return Response.status(HttpStatus.OK.value()).entity(jsonUtils.createResponse("Invitations have been deleted").toString()).type(MediaType.APPLICATION_JSON).build();
    }

    /**
     * Get the invited managers for a type(Community, etc.) with id(ee, egi, etc.)
     */
    @Path("/invite/{type}/{id}/managers/")
    @GET
    @Produces(MediaType.APPLICATION_JSON)
    @PreAuthorize("hasAnyAuthority(@AuthorizationService.PORTAL_ADMIN, " +
            "@AuthorizationService.curator(#type), @AuthorizationService.manager(#type, #id))")
    public Response getInvitedManagers(@PathParam("type") String type, @PathParam("id") String id) {
        JsonArray invited = verificationUtils.getInvitedManagers(type, id);
        return Response.status(HttpStatus.OK.value()).entity(jsonUtils.createResponse(invited).toString()).type(MediaType.APPLICATION_JSON).build();
    }

    /**
     * Get the invited members for a type(Community, etc.) with id(ee, egi, etc.)
     */
    @Path("/invite/{type}/{id}/members/")
    @GET
    @Produces(MediaType.APPLICATION_JSON)
    @PreAuthorize("hasAnyAuthority(@AuthorizationService.PORTAL_ADMIN, " +
            "@AuthorizationService.curator(#type), @AuthorizationService.manager(#type, #id))")
    public Response getInviteMembers(@PathParam("type") String type, @PathParam("id") String id) {
        JsonArray invited = verificationUtils.getInvitedMembers(type, id);
        return Response.status(HttpStatus.OK.value()).entity(jsonUtils.createResponse(invited).toString()).type(MediaType.APPLICATION_JSON).build();
    }

    /**
     * Get the verification with a specific id only if it refers to the logged in user
     */
    @Path("/verification/{id}")
    @GET
    @Produces(MediaType.APPLICATION_JSON)
    @PreAuthorize("isAuthenticated()")
    public Response getVerification(@PathParam("id") String id) {
        RoleVerification verification = verificationUtils.getVerification(id);
        if (verification != null) {
            if (verification.getEmail().equalsIgnoreCase(authorizationService.getEmail())) {
                return Response.status(HttpStatus.OK.value()).entity(jsonUtils.createResponse(jsonUtils.createVerification(verification)).toString()).type(MediaType.APPLICATION_JSON).build();
            } else {
                return Response.status(HttpStatus.FORBIDDEN.value()).entity(jsonUtils.createResponse("Forbidden verification").toString()).type(MediaType.APPLICATION_JSON).build();
            }
        } else {
            return Response.status(HttpStatus.NOT_FOUND.value()).entity(jsonUtils.createResponse("Verification has not been found").toString()).type(MediaType.APPLICATION_JSON).build();
        }
    }

    /**
     * Delete the verification with a specific id.
     */
    @Path("/verification/{id}")
    @DELETE
    @Produces(MediaType.APPLICATION_JSON)
    @PreAuthorize("isAuthenticated() && @VerificationUtils.ownedVerification(#id)")
    public Response deleteVerification(@PathParam("id") String id) {
        if (verificationUtils.getVerification(id) != null) {
            verificationUtils.deleteVerification(id);
            return Response.status(HttpStatus.OK.value()).entity(jsonUtils.createResponse(jsonUtils.createResponse("Verification deleted")).toString()).type(MediaType.APPLICATION_JSON).build();
        } else {
            return Response.status(HttpStatus.NOT_FOUND.value()).entity(jsonUtils.createResponse(jsonUtils.createResponse("Verification has not been found")).toString()).type(MediaType.APPLICATION_JSON).build();
        }
    }

    /**
     * Verify the verification with the specific id, if the code is correct and it refers to the logged in user.
     * Manager role is assigned to this user, along with the member role.
     */
    @Path("/verification/manager/{id}")
    @POST
    @Produces(MediaType.APPLICATION_JSON)
    @PreAuthorize("isAuthenticated()")
    public Response verifyManager(@PathParam("id") String id, @RequestBody String code, @Context final HttpServletRequest request) {
        RoleVerification verification = verificationUtils.getVerification(id);
        if (verification != null && verification.getVerificationType().equals("manager")) {
            if (verification.getEmail().equalsIgnoreCase(authorizationService.getEmail())) {
                if (verification.getVerificationCode().equals(code)) {
                    try {
                        calls.assignManagerRole(verification.getType(), verification.getEntity(), request);
                        if (verification.getType().equals("community") || verification.getType().equals("ri")) {
                            calls.assignMemberRole("ri", verification.getEntity(), request);
                            verificationUtils.deleteMemberVerifications(verification.getEmail(), "community", verification.getEntity());
                            verificationUtils.deleteMemberVerifications(verification.getEmail(), "ri", verification.getEntity());
                            verificationUtils.deleteManagerVerifications(verification.getEmail(), "community", verification.getEntity());
                            verificationUtils.deleteManagerVerifications(verification.getEmail(), "ri", verification.getEntity());
                        } else {
                            verificationUtils.deleteMemberVerifications(verification.getEmail(), verification.getType(), verification.getEntity());
                            verificationUtils.deleteManagerVerifications(verification.getEmail(), verification.getType(), verification.getEntity());
                        }
                        return Response.status(HttpStatus.OK.value()).entity(jsonUtils.createResponse("Admin role has been assigned").toString()).type(MediaType.APPLICATION_JSON).build();
                    } catch (HttpClientErrorException e) {
                        String message = new JsonParser().parse(e.getResponseBodyAsString()).getAsJsonObject().get("message").getAsString();
                        return Response.status(e.getStatusCode().value()).entity(jsonUtils.createResponse(message).toString()).type(MediaType.APPLICATION_JSON).build();
                    }
                } else {
                    return Response.status(HttpStatus.BAD_REQUEST.value()).entity(jsonUtils.createResponse("Verification code is wrong").toString()).type(MediaType.APPLICATION_JSON).build();
                }
            } else {
                return Response.status(HttpStatus.FORBIDDEN.value()).entity(jsonUtils.createResponse("Forbidden verification").toString()).type(MediaType.APPLICATION_JSON).build();
            }
        } else {
            return Response.status(HttpStatus.NOT_FOUND.value()).entity(jsonUtils.createResponse("Verification has not been found").toString()).type(MediaType.APPLICATION_JSON).build();
        }
    }

    /**
     * Verify the verification with the specific id, if the code is correct and it refers to the logged in user.
     * Member role is assigned to this user, along with the member role.
     */
    @Path("/verification/member/{id}")
    @POST
    @Produces(MediaType.APPLICATION_JSON)
    @PreAuthorize("isAuthenticated()")
    public Response verifyMember(@PathParam("id") String id, @RequestBody String code, @Context final HttpServletRequest request) {
        RoleVerification verification = verificationUtils.getVerification(id);
        if (verification != null && verification.getVerificationType().equals("member")) {
            if (verification.getEmail().equalsIgnoreCase(authorizationService.getEmail())) {
                if (verification.getVerificationCode().equals(code)) {
                    try {
                        calls.assignMemberRole(verification.getType(), verification.getEntity(), request);
                        verificationUtils.deleteMemberVerifications(verification.getEmail(), verification.getType(), verification.getEntity());
                        return Response.status(HttpStatus.OK.value()).entity(jsonUtils.createResponse("Member role has been assigned").toString()).type(MediaType.APPLICATION_JSON).build();
                    } catch (HttpClientErrorException e) {
                        String message = new JsonParser().parse(e.getResponseBodyAsString()).getAsJsonObject().get("message").getAsString();
                        return Response.status(e.getStatusCode().value()).entity(jsonUtils.createResponse(message).toString()).type(MediaType.APPLICATION_JSON).build();
                    }
                } else {
                    return Response.status(HttpStatus.BAD_REQUEST.value()).entity(jsonUtils.createResponse("Verification code is wrong").toString()).type(MediaType.APPLICATION_JSON).build();
                }
            } else {
                return Response.status(HttpStatus.FORBIDDEN.value()).entity(jsonUtils.createResponse("Forbidden verification").toString()).type(MediaType.APPLICATION_JSON).build();
            }
        } else {
            return Response.status(HttpStatus.NOT_FOUND.value()).entity(jsonUtils.createResponse("Verification has not been found").toString()).type(MediaType.APPLICATION_JSON).build();
        }
    }

    /**
     * Remove the manager role from user with email for a type(Community, etc.) with id(ee, egi, etc.)
     */
    @Path("/{type}/{id}/manager/{email}")
    @DELETE
    @Produces(MediaType.APPLICATION_JSON)
    @Consumes(MediaType.APPLICATION_JSON)
    @PreAuthorize("hasAnyAuthority(@AuthorizationService.PORTAL_ADMIN, @AuthorizationService.curator(#type), @AuthorizationService.manager(#type, #id))")
    public Response removeManagerRole(@PathParam("type") String type, @PathParam("id") String
            id, @PathParam("email") String email) {
        try {
            JsonElement response = calls.removeManagerRole(type, id, email);
            return Response.status(HttpStatus.OK.value()).entity(response.toString()).type(MediaType.APPLICATION_JSON).build();
        } catch (HttpClientErrorException e) {
            String message = new JsonParser().parse(e.getResponseBodyAsString()).getAsJsonObject().get("message").getAsString();
            return Response.status(e.getStatusCode().value()).entity(jsonUtils.createResponse(message).toString()).type(MediaType.APPLICATION_JSON).build();
        }
    }

    /**
     * Remove the member role from user with email for a type(Community, etc.) with id(ee, egi, etc.)
     */
    @Path("/{type}/{id}/member/{email}")
    @DELETE
    @Produces(MediaType.APPLICATION_JSON)
    @Consumes(MediaType.APPLICATION_JSON)
    @PreAuthorize("hasAnyAuthority(@AuthorizationService.PORTAL_ADMIN, @AuthorizationService.curator(#type), @AuthorizationService.manager(#type, #id))")
    public Response removeMemberRole(@PathParam("type") String type, @PathParam("id") String
            id, @PathParam("email") String email) {
        try {
            JsonElement response = calls.removeMemberRole(type, id, email);
            return Response.status(HttpStatus.OK.value()).entity(response.toString()).type(MediaType.APPLICATION_JSON).build();
        } catch (HttpClientErrorException e) {
            String message = new JsonParser().parse(e.getResponseBodyAsString()).getAsJsonObject().get("message").getAsString();
            return Response.status(e.getStatusCode().value()).entity(jsonUtils.createResponse(message).toString()).type(MediaType.APPLICATION_JSON).build();
        }
    }

    /**
     * Get the number of the members of a type(Community, etc.) with id(ee, egi, etc.)
     */
    @Path("/{type}/{id}/members/count")
    @GET
    @Produces(MediaType.APPLICATION_JSON)
    public Response getMembersCount(@PathParam("type") String type, @PathParam("id") String id) {
        try {
            int response = calls.getAllMembersCount(type, id);
            return Response.status(HttpStatus.OK.value()).entity(jsonUtils.createResponse(response).toString()).type(MediaType.APPLICATION_JSON).build();
        } catch (HttpClientErrorException e) {
            String message = new JsonParser().parse(e.getResponseBodyAsString()).getAsJsonObject().get("message").getAsString();
            return Response.status(e.getStatusCode().value()).entity(jsonUtils.createResponse(message).toString()).type(MediaType.APPLICATION_JSON).build();
        }
    }

    /**
     * Get infos of the members of a type(Community, etc.) with id(ee, egi, etc.)
     */
    @Path("/{type}/{id}/members{var:.*}")
    @GET
    @Produces(MediaType.APPLICATION_JSON)
    @PreAuthorize("hasAnyAuthority(@AuthorizationService.PORTAL_ADMIN," +
            "@AuthorizationService.curator(#type), @AuthorizationService.manager(#type, #id))")
    public Response getMembers(@PathParam("type") String type, @PathParam("id") String id) {
        try {
            JsonElement response = calls.getAllMembers(type, id);
            return Response.status(HttpStatus.OK.value()).entity(jsonUtils.createResponse(response).toString()).type(MediaType.APPLICATION_JSON).build();
        } catch (HttpClientErrorException e) {
            String message = new JsonParser().parse(e.getResponseBodyAsString()).getAsJsonObject().get("message").getAsString();
            return Response.status(e.getStatusCode().value()).entity(jsonUtils.createResponse(message).toString()).type(MediaType.APPLICATION_JSON).build();
        }
    }

    /**
     * Get infos of the managers of a type(Community, etc.) with id(ee, egi, etc.)
     */
    @Path("/{type}/{id}/managers{var:.*}")
    @GET
    @Produces(MediaType.APPLICATION_JSON)
    public Response getManagers(@PathParam("type") String type, @PathParam("id") String id) {
        try {
            JsonElement response = calls.getAllManagers(type, id);
            return Response.status(HttpStatus.OK.value()).entity(jsonUtils.createResponse(response).toString()).type(MediaType.APPLICATION_JSON).build();
        } catch (HttpClientErrorException e) {
            String message = new JsonParser().parse(e.getResponseBodyAsString()).getAsJsonObject().get("message").getAsString();
            return Response.status(e.getStatusCode().value()).entity(jsonUtils.createResponse(message).toString()).type(MediaType.APPLICATION_JSON).build();
        }
    }

    /**
     * Get infos of the curators of a type(Community, etc.)
     */
    @Path("/{type}/curators{var:.*}")
    @GET
    @Produces(MediaType.APPLICATION_JSON)
    @PreAuthorize("hasAnyAuthority(@AuthorizationService.PORTAL_ADMIN, @AuthorizationService.curator(#type))")
    public Response getCurators(@PathParam("type") String type) {
        try {
            JsonElement response = calls.getAllCurators(type);
            return Response.status(HttpStatus.OK.value()).entity(jsonUtils.createResponse(response.toString())).type(MediaType.APPLICATION_JSON).build();
        } catch (HttpClientErrorException e) {
            String message = new JsonParser().parse(e.getResponseBodyAsString()).getAsJsonObject().get("message").getAsString();
            return Response.status(e.getStatusCode().value()).entity(jsonUtils.createResponse(message).toString()).type(MediaType.APPLICATION_JSON).build();
        }
    }
}