/*
 * Copyright 2014 Groupon, Inc
 * Copyright 2014 The Billing Project, LLC
 *
 * The Billing Project licenses this file to you 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.
 */

package org.killbill.billing.jaxrs.resources;

import java.io.ByteArrayInputStream;
import java.io.InputStream;
import java.net.URI;

import javax.servlet.http.HttpServletRequest;
import javax.ws.rs.Consumes;
import javax.ws.rs.GET;
import javax.ws.rs.HeaderParam;
import javax.ws.rs.POST;
import javax.ws.rs.Path;
import javax.ws.rs.Produces;
import javax.ws.rs.core.Response;
import javax.ws.rs.core.Response.Status;
import javax.ws.rs.core.UriInfo;

import org.killbill.billing.account.api.AccountUserApi;
import org.killbill.billing.catalog.StandaloneCatalog;
import org.killbill.billing.catalog.VersionedCatalog;
import org.killbill.billing.jaxrs.util.Context;
import org.killbill.billing.jaxrs.util.JaxrsUriBuilder;
import org.killbill.billing.overdue.api.OverdueApi;
import org.killbill.billing.overdue.api.OverdueConfig;
import org.killbill.billing.overdue.config.DefaultOverdueConfig;
import org.killbill.billing.payment.api.PaymentApi;
import org.killbill.billing.tenant.api.TenantKV.TenantKey;
import org.killbill.billing.tenant.api.TenantUserApi;
import org.killbill.billing.util.api.AuditUserApi;
import org.killbill.billing.util.api.CustomFieldUserApi;
import org.killbill.billing.util.api.TagUserApi;
import org.killbill.billing.util.callcontext.CallContext;
import org.killbill.billing.util.callcontext.TenantContext;
import org.killbill.clock.Clock;
import org.killbill.xmlloader.XMLLoader;
import org.killbill.xmlloader.XMLWriter;

import com.codahale.metrics.annotation.Timed;
import com.google.inject.Inject;
import com.google.inject.Singleton;
import com.wordnik.swagger.annotations.Api;
import com.wordnik.swagger.annotations.ApiOperation;
import com.wordnik.swagger.annotations.ApiResponses;

import static javax.ws.rs.core.MediaType.APPLICATION_XML;

@Singleton
@Path(JaxrsResource.OVERDUE_PATH)
@Api(value = JaxrsResource.OVERDUE_PATH, description = "Overdue information")
public class OverdueResource extends JaxRsResourceBase {

    private final OverdueApi overdueApi;
    private final TenantUserApi tenantApi;

    @Inject
    public OverdueResource(final JaxrsUriBuilder uriBuilder,
                           final TagUserApi tagUserApi,
                           final CustomFieldUserApi customFieldUserApi,
                           final AuditUserApi auditUserApi,
                           final AccountUserApi accountUserApi,
                           final PaymentApi paymentApi,
                           final OverdueApi overdueApi,
                           final TenantUserApi tenantUserApi,
                           final Clock clock,
                           final Context context) {
        super(uriBuilder, tagUserApi, customFieldUserApi, auditUserApi, accountUserApi, paymentApi, clock, context);
        this.overdueApi = overdueApi;
        this.tenantApi = tenantUserApi;
    }

    @Timed
    @GET
    @Produces(APPLICATION_XML)
    @ApiOperation(value = "Retrieve the full catalog as XML", response = String.class, hidden = true)
    @ApiResponses(value = {})
    public Response getOverdueConfigXml(@javax.ws.rs.core.Context final HttpServletRequest request) throws Exception {
        final TenantContext tenantContext = context.createContext(request);
        return Response.status(Status.OK).entity(XMLWriter.writeXML(overdueApi.getOverdueConfig(tenantContext), OverdueConfig.class)).build();
    }

    @Timed
    @POST
    @Produces(APPLICATION_XML)
    @Consumes(APPLICATION_XML)
    @ApiOperation(value = "Upload the full catalog as XML")
    @ApiResponses(value = {})
    public Response uploadOverdueConfigXml(final String overdueXML,
                                     @HeaderParam(HDR_CREATED_BY) final String createdBy,
                                     @HeaderParam(HDR_REASON) final String reason,
                                     @HeaderParam(HDR_COMMENT) final String comment,
                                     @javax.ws.rs.core.Context final HttpServletRequest request,
                                     @javax.ws.rs.core.Context final UriInfo uriInfo) throws Exception {
        // Validation purpose:  Will throw if bad XML or catalog validation fails
        final InputStream stream = new ByteArrayInputStream(overdueXML.getBytes());
        XMLLoader.getObjectFromStream(new URI(JaxrsResource.OVERDUE_PATH), stream, DefaultOverdueConfig.class);

        final CallContext callContext = context.createContext(createdBy, reason, comment, request);
        tenantApi.addTenantKeyValue(TenantKey.OVERDUE_CONFIG.toString(), overdueXML, callContext);
        return uriBuilder.buildResponse(uriInfo, OverdueResource.class, null, null);
    }
}
