<?php
/**
 * Command Line Interface class: Procmail
 *
 * $Id$
 *
 * @author gERD Schaufelberger <gerd@php-tools.net>
 * @license PHP License
 * @package WB
 * @subpackage MailMime
 */

WBClass::load('WBCli'
, 'WBObserver');

/**
 * Command Line Interface class: Event Queue Processor
 *
 * Run event queue
 *
 * @version 0.1.0
 * @package WB
 * @subpackage MimeMail
 */
class WBCli_Procmail extends WBCli implements WBObserver
{
    /**
     * Command line arguments
     * @var array
     */
    protected $arguments  =   array(
            CONSOLE_GETARGS_PARAMS  =>  array(
                        'min'       =>  1,
                        'max'       =>  -1,
                        'default'   =>  'Save',
                        'desc'      =>  'Processor and optional commands',
                    )
    );

    /**
     * Mail processor
     *
     * @var WBMail_Mime_Processor
     */
    private $proc;

    /**
     * Incomming mail loader
     *
     * @var WBMail_Mime_Storage_String
     */
    private $in;

    /**
     * Incomming mail
     *
     * @var WBMail_Mime
     */
    private $mail;

    /**
     * 2nd constructor
     *
     * load config and setup importer
     */
    protected function init()
    {
    }

    /**
     * execute programme
     *
     * Use observer and execute event queue
     */
    protected function execute()
    {
        if (empty($this->commands)) {
            $this->commands =   array('Save');
        }

        // load processor
        $this->proc   =   WBClass::create('WBMail_Mime_Processor_' . $this->commands[0]);
        if (!$this->proc) {
            $this->pl('Could not start mime mail processor: ' . $this->commands[0] . '!');
            return 1;
        }

        $subject    =   WBClass::create('WBMail_Mime_Processor_Observable_Cli');
        $subject->setObserver($this);
        $this->proc->setObservable($subject);


        array_shift($this->commands);
        $this->pv(get_class($this->proc));
        $this->pvl(' ' . implode(', ', $this->commands));

        $this->in =   WBClass::create('WBMail_Mime_Storage_String');

        // load mail from STDIN
        $in =   '';
        while (!feof(STDIN)) {
            $in .=  fgets(STDIN, 4096);
        }
        $this->pvl('Mime-Mail-Size: ' . strlen($in));
        $this->in->loadFromString($in);
        $in     =   '';

        // Get some e-mail information
        $this->mail =   $this->in->getMimeMail();

        $from   =   $this->mail->getFrom();
        $this->pvl('From: "' . $from->getForename() . ' ' . $from->getSurname() . '" <' . $from->getEmailAddress() . '>');
        $this->pvl('Subject: "' . $this->mail->getSubject() . '"');
        $this->pvl('Text-Size: ' . strlen($this->mail->getPlainBody()));
        $this->pvl('Attachments: ' . $this->mail->countAttachments());

        // execute
        $this->proc->setMimeMail($this->mail);
        $this->proc->execute($this->commands);
    }

    /**
     * get help text - head
     *
     * Override this method to set suitable help text
     *
     * @return string
     */
    protected function getHelpHead()
    {
        $head   =   array();
        $head[] =   'Wombat Procmail - Generic Mail Processor';
        $head[] =   '';
        $head[] =   'Procmail is a generic mail processor to connect any Wombat toolkit to the MTA.';
        $head[] =   'It simply reads an e-mail from STDIN and transforms it to an WBMail_Mime object.';
        $head[] =   'Then, the actual processing starts. Processors are implemented in classes in';
        $head[] =   'WB/Mail/Mime/Processor/*';
        $head[] =   '';
        $head[] =   'Usage: ' . basename($_SERVER['_']) . ' [OPTION]... COMMAND... ';
        $head[] =   'Options:';
        $head[] =   '';
        return implode("\n", $head);
    }


    /**
     * Get informed
     *
     * @param WBMail_Mime_Processor_Observerable_Cli $subject
     */
    public function update($subject)
    {
        $this->pl($subject->getMsg());
    }
}