<?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed');

class Calendar_week {

    var $CI;
    var $lang;
    //var $local_time;
    var $template       = '';
    var $start_day      = 'sunday';
    var $month_type     = 'long';
    var $day_type       = 'abr';
    var $week_days = Array();
    var $date = '';
    var $url        = '';

    /**
     * Constructor
     *
     * Loads the calendar language file and sets the default time reference
     *
     * @access  public
     */
    function Calendar_week($config = array()){
        $this->CI =& get_instance();

        if ( ! in_array('calendar_lang'.EXT, $this->CI->lang->is_loaded, TRUE)) {
            $this->CI->lang->load('calendar');
        }

        if (count($config) > 0) {
            $this->initialize($config);
        }

        if ($this->date==null){
            $this->date = date(mktime());
        }

        $this->set_week();

        log_message('debug', "Calendar_week Class Initialized");
    }

    /**
     * Initialize the user preferences
     *
     * Accepts an associative array as input, containing display preferences
     *
     * @access  public
     * @param   array   config preferences
     * @return  void
     */
    function initialize($config = array()) {
        foreach ($config as $key => $val) {
            if (isset($this->$key)) {
                $this->$key = $val;
            }
        }
    }

    function set_range(){
        switch ($this->start_day){
            case 'sunday':
                return range(0,6);
                break;

            case 'monday':
                return range(1,7);
                break;
            case 'tuesday':
                return range(2,8);
                break;

            case 'wednesday':
                return range(3,9);
                break;

            case 'thursday':
                return range(4,10);
                break;

            case 'friday':
                return range(5,11);
                break;

            case 'saturday':
                return range(6,12);
                break;
        }
        return range(0,6);
    }

    function set_week() {
        $week_days = $this->set_range();
        $week_day = date('w',$this->date);

       foreach($week_days as $key=>$day) {
          if($day == $week_day) {
              $week_days[$key] = $this->date;
          } elseif($day < $week_day) {
             $week_days[$key] = strtotime('-'.$week_day+$day.' day',$this->date);
          } elseif($day > $week_day) {
             $week_days[$key] = strtotime('+'.$day-$week_day.' day',$this->date);
          }
       }

       $this->week_days = $week_days;
    }

    function get_week(){
        return $this->week_days ;
    }

    // --------------------------------------------------------------------

    /**
     * Generate the calendar
     *
     * @access  public
     * @return  string
     */
    function generate($data=''){
        $days = $this->get_day_names();
        $months = $this->get_month_name();

        $tmpHeader = '';
        $tmpContent = '';

        for ($i=0;$i<count($this->week_days);$i++){
            if ( (date('l', $this->week_days[$i])=='Saturday') || (date('l', $this->week_days[$i])=='Sunday') ){
                $tmpHeader .= '<td>'.$days[date('w', $this->week_days[$i])].' '.date('d', $this->week_days[$i]).' ' . $months[date('n', $this->week_days[$i])-1] .'</td>';
                $tmpContent .= '<td><div class="container" style="background: #ccc;"></div></td>';
            } else {
                $tmpHeader .= '<td>'.$days[date('w', $this->week_days[$i])].' '.date('d', $this->week_days[$i]).' ' . $months[date('n', $this->week_days[$i])-1] .'</td>';
                $tmpContent .= '<td><div class="container">'.$data[$this->week_days[$i]].'</div></td>';
            }
        }

        $before = strtotime('-4 day',$this->week_days[0]);
        $after = strtotime('+1 day',$this->week_days[count($this->week_days)-1]);

        $template = '
                    <span id="displayCalendarBefore">
                        <a href="' . site_url($this->url . date('Y',$before).'/'.date('m',$before).'/'.date('d',$before)) . '">before</a>
                    </span>
                    <span id="calendar">
                        <table>
                            <tr class="calendarDay">'.$tmpHeader.'</tr>
                            <tr class="calendarDetail">'.$tmpContent.'</tr>
                        </table>
                    </span>
                    <span id="displayCalendarAfter">
                        <a href="' . site_url($this->url . date('Y',$after).'/'.date('m',$after).'/'.date('d',$after)) . '">after</a>
                    </span>';
        return $template ;
    }

    /**
     * Get Month Name
     *
     * Generates a textual month name based on the numeric
     * month provided.
     *
     * @access  public
     * @param   integer the month
     * @return  string
     */
    function get_month_name() {
        if ($this->month_type == 'short') {
            $month_names = array('01' => 'cal_jan', '02' => 'cal_feb', '03' => 'cal_mar', '04' => 'cal_apr', '05' => 'cal_may', '06' => 'cal_jun', '07' => 'cal_jul', '08' => 'cal_aug', '09' => 'cal_sep', '10' => 'cal_oct', '11' => 'cal_nov', '12' => 'cal_dec');
        } else {
            $month_names = array('01' => 'cal_january', '02' => 'cal_february', '03' => 'cal_march', '04' => 'cal_april', '05' => 'cal_may', '06' => 'cal_june', '07' => 'cal_july', '08' => 'cal_august', '09' => 'cal_september', '10' => 'cal_october', '11' => 'cal_november', '12' => 'cal_december');
        }

        $months = array();
        foreach ($month_names as $val) {
            $months[] = ($this->CI->lang->line($val) === FALSE) ? ucfirst($val) : $this->CI->lang->line($val);
        }

        return $months;
    }

    /**
     * Get Day Names
     *
     * Returns an array of day names (Sunday, Monday, etc.) based
     * on the type.  Options: long, short, abrev
     *
     * @access  public
     * @param   string
     * @return  array
     */
    function get_day_names($day_type = '')
    {
        if ($day_type != '')
            $this->day_type = $day_type;

        if ($this->day_type == 'long') {
            $day_names = array('sunday', 'monday', 'tuesday', 'wednesday', 'thursday', 'friday', 'saturday');
        } elseif ($this->day_type == 'short') {
            $day_names = array('sun', 'mon', 'tue', 'wed', 'thu', 'fri', 'sat');
        } else {
            $day_names = array('su', 'mo', 'tu', 'we', 'th', 'fr', 'sa');
        }

        $days = array();
        foreach ($day_names as $val) {
            $days[] = ($this->CI->lang->line('cal_'.$val) === FALSE) ? ucfirst($val) : $this->CI->lang->line('cal_'.$val);
        }
        return $days;
    }
}

// END Calendar_week class

/* End of file Calendar_week.php */
/* Location: ./system/application/libraries/Calendar_week.php */