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/*
 * Copyright 2013 eXo Platform SAS
 *
 * 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 juzu.impl.bridge;

import juzu.request.ResponseParameter;
import juzu.io.Encoding;

import java.util.HashMap;
import java.util.Map;

/** @author Julien Viet */
public class Parameters extends HashMap {

  public void setParameter(String name, String value) throws NullPointerException {
    setParameter(Encoding.RFC3986, name, value);
  }

  public void setParameter(Encoding encoding, String name, String value) throws NullPointerException {
    if (name == null) {
      throw new NullPointerException("No null name can be used");
    }
    if (name.startsWith("juzu.")) {
      throw new IllegalArgumentException("Parameter name cannot be prefixed with juzu.");
    }
    if (value != null) {
      put(name, ResponseParameter.create(encoding, name, value));
    }
    else {
      remove(name);
    }
  }

  public void setParameter(Encoding encoding, String name, String[] value) throws NullPointerException {
    if (name == null) {
      throw new NullPointerException("No null name can be used");
    }
    if (value == null) {
      throw new NullPointerException("No null value can be used");
    }
    if (name.startsWith("juzu.")) {
      throw new IllegalArgumentException("Parameter name cannot be prefixed with juzu.");
    }
    if (value.length == 0) {
      remove(name);
    }
    else {
      for (String component : value) {
        if (component == null) {
          throw new IllegalArgumentException("Argument array cannot contain null value");
        }
      }
      put(name, ResponseParameter.create(encoding, name, value.clone()));
    }
  }

  public void setParameter(String name, String[] value) throws NullPointerException, IllegalArgumentException {
    setParameter(Encoding.RFC3986, name, value);
  }

  public void setParameters(Encoding encoding, Map parameters) throws NullPointerException, IllegalArgumentException {
    throw new UnsupportedOperationException("todo");
  }

  public void setParameters(Map parameters) throws NullPointerException, IllegalArgumentException {
    if (parameters == null) {
      throw new NullPointerException("No null parameters accepted");
    }
    for (Map.Entry entry : parameters.entrySet()) {
      if (entry.getKey() == null) {
        throw new IllegalArgumentException("No null parameter key can be null");
      }
      if (entry.getValue() == null) {
        throw new IllegalArgumentException("No null parameter value can be null");
      }
      setParameter(entry.getKey(), entry.getValue());
    }
  }
}