/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF 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 io.milton.http;

import io.milton.resource.PostableResource;
import io.milton.resource.GetableResource;
import io.milton.resource.Resource;
import io.milton.http.exceptions.BadRequestException;
import io.milton.http.exceptions.ConflictException;
import io.milton.http.exceptions.NotAuthorizedException;
import java.io.IOException;
import java.io.OutputStream;
import java.util.Date;
import java.util.Map;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import io.milton.http.Request.Method;

/**
 * A very simple resource implementation, which simply takes parameters in the
 * constructor to define the resource, which includes the content
 *
 * Can be useful for resources defined in by code, where the content is a classpath
 * item
 *
 */
public class SimpleResource implements GetableResource, PostableResource{
    private static final Logger log = LoggerFactory.getLogger(SimpleResource.class);

    final String name;
    final Date modDate;
    final byte[] content;
    final String contentType;
    final String uniqueId;
    final String realm;
    final Resource secureResource;

    public SimpleResource( String name, Date modDate, byte[] content, String contentType, String uniqueId, String realm) {
        this.name = name;
        this.modDate = modDate;
        this.content = content;
        this.contentType = contentType;
        this.uniqueId = uniqueId;
        this.realm = realm;
        this.secureResource = null;
    }

    public SimpleResource( String name, Date modDate, byte[] content, String contentType, String uniqueId, Resource secureResource ) {
        this.name = name;
        this.modDate = modDate;
        this.content = content;
        this.contentType = contentType;
        this.uniqueId = uniqueId;
        this.realm = secureResource.getRealm();
        this.secureResource = secureResource;
    }



    public void sendContent(OutputStream out, Range range, Map<String, String> params, String contentType) throws IOException {
        out.write(content);
    }

    public Long getMaxAgeSeconds(Auth auth) {
        return 60l;
    }

    public String getContentType(String accepts) {
        return contentType;
    }

    public Long getContentLength() {
        return (long)content.length;
    }

    public String getUniqueId() {
        return uniqueId;
    }

    public String getName() {
        return name;
    }

    public Object authenticate(String user, String password) {
        if( secureResource != null) {
            return secureResource.authenticate( user, password );
        } else {
            return user;
        }

    }

    public boolean authorise(Request request, Method method, Auth auth) {
        if( secureResource != null ) {
            return secureResource.authorise( request, method, auth );
        } else {
            return true;
        }
    }

    public String getRealm() {
        return realm;
    }

    public Date getModifiedDate() {
        return modDate;
    }

    public String checkRedirect(Request request) {
        return null;
    }

    public String processForm( Map<String, String> parameters, Map<String, FileItem> files ) throws BadRequestException, NotAuthorizedException, ConflictException {
        return null;
    }
    
}