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/*
 * Copyright (C) 2016 Cognifide Limited
 *
 * 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.
 */
package io.knotx.server;

import io.knotx.server.configuration.KnotxServerConfiguration;
import io.vertx.core.Handler;
import io.vertx.core.json.JsonObject;
import io.vertx.reactivex.ext.web.RoutingContext;

public class KnotxHeaderHandler implements Handler {

  private JsonObject customHeader;

  public KnotxHeaderHandler(JsonObject customResponseHeader) {
    this.customHeader = customResponseHeader;
  }

  public static KnotxHeaderHandler create(KnotxServerConfiguration config) {
    return new KnotxHeaderHandler(config.getCustomResponseHeader());
  }

  @Override
  public void handle(RoutingContext context) {
    if (customHeader.containsKey("name") && customHeader.containsKey("value")) {
      context.response().headers()
          .add(customHeader.getString("name"), customHeader.getString("value"));
    }
    context.next();
  }
}