<?php
/**
 * Smarty plugin
 * 
 * @package Smarty
 * @subpackage PluginsFunction
 */

/**
 * Smarty {html_select_time} function plugin
 * 
 * Type:     function<br>
 * Name:     html_select_time<br>
 * Purpose:  Prints the dropdowns for time selection
 * 
 * @link http://smarty.php.net/manual/en/language.function.html.select.time.php {html_select_time}
 *          (Smarty online manual)
 * @author Roberto Berto <roberto@berto.net> 
 * @credits Monte Ohrt <monte AT ohrt DOT com>
 * @param array $params parameters
 * @param object $template template object
 * @return string 
 * @uses smarty_make_timestamp()
 */
function smarty_function_html_select_time($params, $template)
{
    require_once(SMARTY_PLUGINS_DIR . 'shared.make_timestamp.php');
    require_once(SMARTY_PLUGINS_DIR . 'function.html_options.php');

    /* Default values. */
    $prefix = "Time_";
    $time = time();
    $display_hours = true;
    $display_minutes = true;
    $display_seconds = true;
    $display_meridian = true;
    $use_24_hours = true;
    $minute_interval = 1;
    $second_interval = 1;
    /* Should the select boxes be part of an array when returned from PHP?
       e.g. setting it to "birthday", would create "birthday[Hour]",
       "birthday[Minute]", "birthday[Seconds]" & "birthday[Meridian]".
       Can be combined with prefix. */
    $field_array = null;
    $all_extra = null;
    $hour_extra = null;
    $minute_extra = null;
    $second_extra = null;
    $meridian_extra = null;

    foreach ($params as $_key => $_value) {
        switch ($_key) {
            case 'prefix':
            case 'time':
            case 'field_array':
            case 'all_extra':
            case 'hour_extra':
            case 'minute_extra':
            case 'second_extra':
            case 'meridian_extra':
                $$_key = (string)$_value;
                break;

            case 'display_hours':
            case 'display_minutes':
            case 'display_seconds':
            case 'display_meridian':
            case 'use_24_hours':
                $$_key = (bool)$_value;
                break;

            case 'minute_interval':
            case 'second_interval':
                $$_key = (int)$_value;
                break;

            default:
                trigger_error("[html_select_time] unknown parameter $_key", E_USER_WARNING);
        } 
    } 

    $time = smarty_make_timestamp($time);

    $html_result = '';

    if ($display_hours) {
        $hours = $use_24_hours ? range(0, 23) : range(1, 12);
        $hour_fmt = $use_24_hours ? '%H' : '%I';
        for ($i = 0, $for_max = count($hours); $i < $for_max; $i++)
        $hours[$i] = sprintf('%02d', $hours[$i]);
        $html_result .= '<select name=';
        if (null !== $field_array) {
            $html_result .= '"' . $field_array . '[' . $prefix . 'Hour]"';
        } else {
            $html_result .= '"' . $prefix . 'Hour"';
        } 
        if (null !== $hour_extra) {
            $html_result .= ' ' . $hour_extra;
        } 
        if (null !== $all_extra) {
            $html_result .= ' ' . $all_extra;
        } 
        $html_result .= '>' . "\n";
        $html_result .= smarty_function_html_options(array('output' => $hours,
                'values' => $hours,
                'selected' => strftime($hour_fmt, $time),
                'print_result' => false),
            $template);
        $html_result .= "</select>\n";
    } 

    if ($display_minutes) {
        $all_minutes = range(0, 59);
        for ($i = 0, $for_max = count($all_minutes); $i < $for_max; $i += $minute_interval)
        $minutes[] = sprintf('%02d', $all_minutes[$i]);
        $selected = intval(floor(strftime('%M', $time) / $minute_interval) * $minute_interval);
        $html_result .= '<select name=';
        if (null !== $field_array) {
            $html_result .= '"' . $field_array . '[' . $prefix . 'Minute]"';
        } else {
            $html_result .= '"' . $prefix . 'Minute"';
        } 
        if (null !== $minute_extra) {
            $html_result .= ' ' . $minute_extra;
        } 
        if (null !== $all_extra) {
            $html_result .= ' ' . $all_extra;
        } 
        $html_result .= '>' . "\n";

        $html_result .= smarty_function_html_options(array('output' => $minutes,
                'values' => $minutes,
                'selected' => $selected,
                'print_result' => false),
              $template);
        $html_result .= "</select>\n";
    } 

    if ($display_seconds) {
        $all_seconds = range(0, 59);
        for ($i = 0, $for_max = count($all_seconds); $i < $for_max; $i += $second_interval)
        $seconds[] = sprintf('%02d', $all_seconds[$i]);
        $selected = intval(floor(strftime('%S', $time) / $second_interval) * $second_interval);
        $html_result .= '<select name=';
        if (null !== $field_array) {
            $html_result .= '"' . $field_array . '[' . $prefix . 'Second]"';
        } else {
            $html_result .= '"' . $prefix . 'Second"';
        } 

        if (null !== $second_extra) {
            $html_result .= ' ' . $second_extra;
        } 
        if (null !== $all_extra) {
            $html_result .= ' ' . $all_extra;
        } 
        $html_result .= '>' . "\n";

        $html_result .= smarty_function_html_options(array('output' => $seconds,
                'values' => $seconds,
                'selected' => $selected,
                'print_result' => false),
             $template);
        $html_result .= "</select>\n";
    } 

    if ($display_meridian && !$use_24_hours) {
        $html_result .= '<select name=';
        if (null !== $field_array) {
            $html_result .= '"' . $field_array . '[' . $prefix . 'Meridian]"';
        } else {
            $html_result .= '"' . $prefix . 'Meridian"';
        } 

        if (null !== $meridian_extra) {
            $html_result .= ' ' . $meridian_extra;
        } 
        if (null !== $all_extra) {
            $html_result .= ' ' . $all_extra;
        } 
        $html_result .= '>' . "\n";

        $html_result .= smarty_function_html_options(array('output' => array('AM', 'PM'),
                'values' => array('am', 'pm'),
                'selected' => strtolower(strftime('%p', $time)),
                'print_result' => false),
            $template);
        $html_result .= "</select>\n";
    } 

    return $html_result;
} 

?>