iCalendar.php

<?php

require_once __DIR__ . '/../mail/v5_2/PHPMailerAutoload.php';

class InviteTest {

    protected $code_invite;
    protected $curr_date;
    protected $event_date_ini;
    protected $event_date_fin;
    protected $organizer;
    protected $location;
    protected $attendees;
    protected $rules;
    protected $method;
    
    /**
     * @param string $organizer [email do organizado]
     * @param string $method [REQUEST, REPLY, CANCEL]
     */
    public function __construct($organizer, $method)
    {
        $curr_date = new DateTime();
        
        $this->code_invite = md5('esaf_' . date('d/m/y-h-i-s'));
        $this->curr_date = $this->formataData($curr_date);

        $this->organizer = $organizer;
        $this->method = $method;

        $this->location = '';
        $this->attendees = '';
        $this->rules = '';
    }

    /**
     * @param string $subject
     * @param string $desctiption
     */
    public function sendInvite($subject, $desctiption)
    {
        $invite = $this->geraInvite($subject, $desctiption);
        return $this->mandaEmail($invite);
    }

    /**
     * @param string $event_ini [data de início do evento]
     * @param string $event_end [data de fim do evento]
     * @return void
     */
    public function setDates($event_ini, $event_end)
    {
        $ini = new DateTime($event_ini);
        $end = new DateTime($event_end);

        $this->event_date_ini = $this->formataData($ini);
        $this->event_date_fin = $this->formataData($end);
    }

    /**
     * @param string $name [nome do local ou veiculo reservado]
     * @param string $email [email do local ou veiculo reservado]
     */
    public function setLocation($name, $email)
    {
        $location = new stdClass;
        $location->name = $name;
        $location->email = $email;

        $this->location = "LOCATION:{$location->name} <{$location->email}>";

        return $this;
    }

    /**
     * @param string $name [nome de quem vai receber a notificacao]
     * @param string $email [email de quem vai receber a notificacao]
     * @param string $status [ACCEPTED, DECLINED, NEEDS-ACTION]
     */
    public function addAttendee($name, $email, $status)
    {
        $attendee = new stdClass;
        $attendee->name = $name;
        $attendee->email = $email;
        $attendee->status = $status;

        $this->attendees .= "ATTENDEE;RSVP=TRUE;PARTSTAT={$attendee->status};CN={$attendee->name}:{$attendee->email};MAILTO:{$attendee->email} \n";

        return $this;
    }

    /**
     * @param string $frequencia
     * @param string $periodo
     * @param string $dias
     */
    public function addRule($frequencia, $periodo, $dias)
    {
        $rule = new stdClass;
        $rule->frequencia = $frequencia;
        $rule->periodo = $periodo;
        $rule->dias = $dias;

        $this->rules .= "RRULE:INTERVAL=1;FREQ={$rule->frequencia};UNTIL={$rule->periodo};BYDAY={$rule->dias} \n";

        return $this;
    }

    /**
     * @param string $organizer email
     * @param array $attendees array[array[PARTSTAT, CN, EMAIL]]
     * @param array $location array[name, email]]
     */
    private function geraInvite(
        $subject,
        $description
        ){
        
        $header = "BEGIN:VCALENDAR\n
        VERSION:2.0\n
        PRODID:Zimbra-Calendar-Provider\n
        METHOD:{$this->method}\n
        BEGIN:VEVENT\n
        ORGANIZER;SENT-BY=MAILTO:{$this->organizer}:MAILTO:workflow@ibrap.com.br\n";

        $footer = "BEGIN:VALARM\n
        TRIGGER:-PT15M\n
        ACTION:DISPLAY\n
        DESCRIPTION:Lembrar\n
        END:VALARM\n
        END:VEVENT\n
        END:VCALENDAR\n";

        return "{$header}
        UID:{$this->code_invite}\n
        {$this->rules}
        {$this->attendees}
        DTSTAMPTZID=America/Sao_Paulo:{$this->curr_date}\n
        DTSTART;TZID=America/Sao_Paulo:{$this->event_date_ini}\n
        DTEND;TZID=America/Sao_Paulo:{$this->event_date_fin}\n
        {$this->location}
        SUBJECT:{$subject}\n
        DESCRIPTION:{$description}\n
        {$footer}";

    }
    
    private function mandaEmail($ical){
    	$mail = new PHPMailer();
        $mail->SMTPDebug = 2;
        $mail->isSMTP(); // use SMTP
        $mail->isHTML(false); // Define que o e-mail será enviado como HTML
        $mail->ContentType = 'text/html';

        $mail->Host = "seuhost";  // Endereço do servidor SMTP
        $mail->Port = 25;

        $mail->From = 'seuemail'; // Seu e-mail
        $mail->FromName = 'seunome'; // Seu nome

        $mail->Subject  = 'Sala de Reunião Exclusivi';
        
        $mail->addAddress('seuemail', 'seunome');
        $mail->addStringAttachment($ical, "meeting.ics");

        $mail->Ical = $ical;
        $mail->Body = $ical;

        return $mail->send();
    }

    private function formataData($date)
    {
        return substr_replace('-', 'T', $date->format('Ymd-His'));
    }
}



$evento = isset($argv[1]) ? $argv[1] : $_REQUEST['evento'];


$invite = new InviteTest;
if(method_exists($invite, $evento)) {
    return $invite->$evento();
}

echo 'Evento não cadastrado' . PHP_EOL;