<?php

/**
 * Description of Database
 *
 * @author Ivaylo Ivanov
 */

namespace Models;

class Mailer {

    /**
     * This is destination email address
     * @var string
     */
    private $to;

    /**
     * This is source email address
     * @var string
     */
    private $from;

    /**
     * This is return path email address
     * @var string
     */
    private $return;

    /**
     * This is subject for email
     * @var string
     */
    private $subject;

    /**
     * This is header for email
     * @var string
     */
    private $header;

    /**
     * Pass Variable
     * @param   string  $from    Content from email address
     * @param   string  $to      Content to email address
     * @param   string  $subject Content subject email
     * @param   string  $return  Content return path email address
     * No return value. Pass variable into this class
     */
    function __construct($from, $to, $subject, $return) {
        $this->from = $from;
        $this->to = $to;
        $this->subject = $subject;
        $this->return = $return;
    }

    /**
     * Изпраща обикновен Имейл
     * @param   string  $message    Content for this email
     * No return value. Send email
     * @access  public
     * @access  static
     */
    public function simpleMail($message) {
        $this->header = "From: " . $this->from . "\n";
        $this->header .= "Reply-To: " . $this->from . "\n";
        $this->header .= "Return-Path: " . $this->return . "\n";
        $this->header .= "X-Mailer: PHP/" . phpversion() . "\n";
        $this->send($message);
    }

    /**
     * Изпраща HTML емаил
     * @param type $html
     * @param type $plainText
     */
    public function htmlMail($html, $plainText = '') {
        $boundary = md5(uniqid(time()));
        $this->header = "From: " . $this->from . "\n";
        $this->header .= "To: " . $this->to . "\n";
        $this->header .= "Return-Path: " . $this->return . "\n";
        $this->header .= "MIME-Version: 1.0\n";
        $this->header .= "Content-Type: multipart/alternative; boundary=\"" . $boundary . "\"\n";

        // Text Version
        $msgPlainText = "--" . $boundary . "\n";
        $msgPlainText .= "Content-Type: text/plain; charset=iso-8589-1\n";
        $msgPlainText .= "Content-Transfer-Encoding: 8bit\n";
        $msgPlainText .= "If you are seeing this is because you may need to change your\n";
        $msgPlainText .= "preferred message format from HTML to plain text.\n\n";
        if ($plainText == '') {

            $plainText = strip_tags($html);
        }
        $msgPlainText .= $plainText . "\n";


        $msgHtml = "--" . $boundary . "\n";
        $msgHtml .= "Content-Type: text/html; charset=iso-8589-1\n";
        $msgHtml .= "Content-Transfer-Encoding: 8bit\n";
        $msgHtml .= $html;

        $message = $msgPlainText . $msgHtml . "\n\n";

        $this->send($message);
    }

    /**
     * Send simple email with attachment
     * @param   string  $file       File for attachment (file name or path of file)
     * @param   string  $plainText  Message in plain text format
     * No return value. Send simple email with attachment
     * @access  public
     * @access  static
     */
    public function simpleAttachment($file, $plainText = '') {
        $handle = fopen($file, 'rb');
        $data = fread($handle, filesize($file));
        $data = chunk_split(base64_encode($data));
        $filetype = mime_content_type($file);

        $boundary = md5(uniqid(time()));
        $this->header = "From: " . $this->from . "\n";
        $this->header .= "To: " . $this->to . "\n";
        $this->header .= "Return-Path: " . $this->return . "\n";
        $this->header .= "MIME-Version: 1.0\n";
        $this->header .= "Content-Type: multipart/mixed; boundary=\"" . $boundary . "\"";

        // Text Version
        $msgPlainText = "--" . $boundary . "\n";
        $msgPlainText .= "Content-Type: text/plain; charset=utf-8\n";
        $msgPlainText .= "Content-Transfer-Encoding: 8bit\n";
        if ($plainText != '') {
            $msgPlainText .= $plainText . "\n";
        }

        // Attachment Version
        $attach = "--" . $boundary . "\n";
        $attach .= "Content-Type: " . $filetype . "; name=\"" . $file . "\"\n";
        $attach .= "Content-Transfer-Encoding: base64 \n";
        // Need two end of lines
        $attach .= "Content-Disposition: attachment; filename=\"" . $file . "\"\n\n";
        $attach .= $data . "\n\n";

        $message = $msgPlainText . $attach;
        // Send Email
        $this->send($message);
    }

    /**
     * Изпраща HTML емаил с прикачен файл
     * @param type $file
     * @param type $html
     * @param type $plainText
     */
    public function htmlAttachment($file, $html, $plainText = '') {
        $handle = fopen($file, 'rb');
        $data = fread($handle, filesize($file));
        $data = chunk_split(base64_encode($data));
        $filetype = mime_content_type($file);

        $boundary = md5(uniqid(time()));
        $this->header = "From: " . $this->from . "\n";
        $this->header .= "To: " . $this->to . "\n";
        $this->header .= "Return-Path: " . $this->return . "\n";
        $this->header .= "MIME-Version: 1.0\n";
        $this->header .= "Content-Type: multipart/related; boundary=\"" . $boundary . "\"\n";

        // Text Version
        $msgPlainText = "--" . $boundary . "\n";
        $msgPlainText .= "Content-Type: text/plain; charset=iso-8589-1\n";
        $msgPlainText .= "Content-Transfer-Encoding: 8bit\n";
        $msgPlainText .= "If you are seeing this is because you may need to change your\n";
        $msgPlainText .= "preferred message format from HTML to plain text.\n\n";
        if ($plainText == '') {
            $plainText = strip_tags($html);
        }
        $msgPlainText .= $plainText . "\n";

        // HTML Version
        $msgHtml = "--" . $boundary . "\n";
        $msgHtml .= "Content-Type: text/html; charset=iso-8589-1\n";
        $msgHtml .= "Content-Transfer-Encoding: 8bit\n";
        $msgHtml .= $html . "\n";

        // Attachment Version
        $attach = "--" . $boundary . "\n";
        $attach .= "Content-Type: " . $filetype . "; name=\"" . $file . "\"\n";
        $attach .= "Content-Transfer-Encoding: base64 \n";
        // Need two end of lines
        $attach .= "Content-Disposition: attachment; filename=\"" . $file . "\"\n\n";
        $attach .= $data . "\n\n";

        $message = "Content-Type: multipart/alternative; boundary=\"" . $boundary . "\"";
        $message .= $msgPlainText . $msgHtml . $attach;
        // Send Email
        $this->send($message);
    }

    /**
     * return function mail()
     * @param   string  $message    Content for this email
     * return function mail()
     * @access  private
     * @access  static
     */
    private function send($message) {
        return @mail($this->to, $this->subject, $message, $this->header);
    }

}