/**
 * Copyright (C) 2012-2014 the original author or authors.
 *
 * 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 ninja.postoffice.commonsmail;

import ninja.postoffice.Mail;
import ninja.postoffice.Postoffice;
import ninja.postoffice.guice.PostofficeConstant;
import ninja.utils.NinjaProperties;

import org.apache.commons.mail.MultiPartEmail;

import com.google.inject.Inject;

public class PostofficeCommonsmailImpl implements Postoffice {

    private final CommonsmailHelper commonsmailHelper;

    private final String smtpHost;
    private final int smtpPort;
    private final boolean smtpSsl;
    private final String smtpUser;
    private final String smtpPassword;
    private final boolean smtpDebug;

    @Inject
    public PostofficeCommonsmailImpl(CommonsmailHelper commonsmailHelper,
            NinjaProperties props) {
        this.commonsmailHelper = commonsmailHelper;

        this.smtpHost = props.getOrDie(PostofficeConstant.smtpHost);

        Integer smtpPort = props.getInteger(PostofficeConstant.smtpPort);
        if (smtpPort == null) {
            this.smtpPort = 25;
        } else {
            this.smtpPort = smtpPort;
        }

        Boolean smtpSsl = props.getBoolean(PostofficeConstant.smtpSsl);
        if (smtpSsl == null) {
            this.smtpSsl = false;
        } else {
            this.smtpSsl = smtpSsl;
        }

        this.smtpUser = props.get(PostofficeConstant.smtpUser);
        this.smtpPassword = props.get(PostofficeConstant.smtpPassword);

        Boolean smtpDebug = props.getBoolean(PostofficeConstant.smtpDebug);
        if (smtpDebug == null) {
            this.smtpDebug = false;
        } else {
            this.smtpDebug = smtpDebug;
        }
    }

    // May be used for testing
    PostofficeCommonsmailImpl(CommonsmailHelper commonsmailHelper, String smtpHost,
            int smtpPort, boolean smtpSsl, String smtpUser, String smtpPassword,
            boolean smtpDebug) {
        this.commonsmailHelper = commonsmailHelper;
        this.smtpHost = smtpHost;
        this.smtpPort = smtpPort;
        this.smtpSsl = smtpSsl;
        this.smtpUser = smtpUser;
        this.smtpPassword = smtpPassword;
        this.smtpDebug = smtpDebug;
    }

    @Override
    public void send(Mail mail) throws Exception {

        // create a correct multipart email based on html / txt content:
        MultiPartEmail multiPartEmail = commonsmailHelper.createMultiPartEmailWithContent(mail);

        // fill the from, to, bcc, css and all other fields:
        commonsmailHelper.doPopulateMultipartMailWithContent(multiPartEmail, mail);

        // set server parameters so we can send the MultiPartEmail:
        commonsmailHelper.doSetServerParameter(multiPartEmail, smtpHost, smtpPort, smtpSsl,
                smtpUser, smtpPassword, smtpDebug);

        // And send it:
        multiPartEmail.send();
    }

}
