<?php

/**
 * Basic Cake functionality.
 *
 * Core functions for including other source files, loading models and so forth.
 *
 * PHP 5
 *
 * CakePHP(tm) : Rapid Development Framework (http://cakephp.org)
 * Copyright 2005-2012, Cake Software Foundation, Inc. (http://cakefoundation.org)
 *
 * Licensed under The MIT License
 * Redistributions of files must retain the above copyright notice.
 *
 * @copyright     Copyright 2005-2012, Cake Software Foundation, Inc. (http://cakefoundation.org)
 * @link          http://cakephp.org CakePHP(tm) Project
 * @package       Cake
 * @since         CakePHP(tm) v 0.2.9
 * @license       MIT License (http://www.opensource.org/licenses/mit-license.php)
 */
/**
 * Basic defines for timing functions.
 */
define('SECOND', 1);
define('MINUTE', 60);
define('HOUR', 3600);
define('DAY', 86400);
define('WEEK', 604800);
define('MONTH', 2592000);
define('YEAR', 31536000);

/**
 * Formata um float em moeda
 * @param float $numero
 */
function cur($numero) {
    return money_format('%=#10.2n', $numero);
}

/**
 * Loads configuration files. Receives a set of configuration files
 * to load.
 * Example:
 *
 * `config('config1', 'config2');`
 *
 * @return boolean Success
 * @link http://book.cakephp.org/2.0/en/core-libraries/global-constants-and-functions.html#config
 */
function config() {
    $args = func_get_args();
    foreach ($args as $arg) {
        if (file_exists(APP . 'Config' . DS . $arg . '.php')) {
            include_once APP . 'Config' . DS . $arg . '.php';

            if (count($args) == 1) {
                return true;
            }
        } else {
            if (count($args) == 1) {
                return false;
            }
        }
    }
    return true;
}

/**
 * Prints out debug information about given variable.
 *
 * Only runs if debug level is greater than zero.
 *
 * @param boolean $var Variable to show debug information for.
 * @param boolean $showHtml If set to true, the method prints the debug data in a browser-friendly way.
 * @param boolean $showFrom If set to true, the method prints from where the function was called.
 * @link http://book.cakephp.org/2.0/en/development/debugging.html#basic-debugging
 * @link http://book.cakephp.org/2.0/en/core-libraries/global-constants-and-functions.html#debug
 */
function debug($var = false, $showHtml = null, $showFrom = true) {
    if (Configure::read('debug') > 0) {
        App::uses('Debugger', 'Utility');
        $file = '';
        $line = '';
        $lineInfo = '';
        if ($showFrom) {
            $trace = Debugger::trace(array('start' => 1, 'depth' => 2, 'format' => 'array'));
            $file = str_replace(array(CAKE_CORE_INCLUDE_PATH, ROOT), '', $trace[0]['file']);
            $line = $trace[0]['line'];
        }
        $html = <<<HTML
<div class="cake-debug-output">
%s
<pre class="cake-debug">
%s
</pre>
</div>
HTML;
        $text = <<<TEXT
%s
########## DEBUG ##########
%s
###########################
TEXT;
        $template = $html;
        if (php_sapi_name() == 'cli' || $showHtml === false) {
            $template = $text;
            if ($showFrom) {
                $lineInfo = sprintf('%s (line %s)', $file, $line);
            }
        }
        if ($showHtml === null && $template !== $text) {
            $showHtml = true;
        }
        $var = Debugger::exportVar($var, 25);
        if ($showHtml) {
            $template = $html;
            $var = h($var);
            if ($showFrom) {
                $lineInfo = sprintf('<span><strong>%s</strong> (line <strong>%s</strong>)</span>', $file, $line);
            }
        }
        printf($template, $lineInfo, $var);
    }
}

if (!function_exists('sortByKey')) {

    /**
     * Sorts given $array by key $sortby.
     *
     * @param array $array Array to sort
     * @param string $sortby Sort by this key
     * @param string $order  Sort order asc/desc (ascending or descending).
     * @param integer $type Type of sorting to perform
     * @return mixed Sorted array
     * @link http://book.cakephp.org/2.0/en/core-libraries/global-constants-and-functions.html#sortByKey
     */
    function sortByKey(&$array, $sortby, $order = 'asc', $type = SORT_NUMERIC) {
        if (!is_array($array)) {
            return null;
        }

        foreach ($array as $key => $val) {
            $sa[$key] = $val[$sortby];
        }

        if ($order == 'asc') {
            asort($sa, $type);
        } else {
            arsort($sa, $type);
        }

        foreach ($sa as $key => $val) {
            $out[] = $array[$key];
        }
        return $out;
    }

}

function toPhone($value, $ddd = '') {

    $ddd = trim($ddd) != '' ?
            '(' . $ddd . ') ' :
            '';

    if (strlen($value) == 8) {
        return $ddd . mask($value, '####-####');
    } else if (strlen($value) == 9) {
        return $ddd . mask($value, '#.####-####');
    } else if (strlen($value) == 10) {
        return $ddd . mask($value, '(##) ####-####');
    } else if (strlen($value) == 11) {
        return $ddd . mask($value, '(##) #.####-####');
    } else {
        return $ddd . $value;
    }
}

function __q($value) {

    $b = '<b>';
    $i = '<i>';
    $newString = '';

    for ($o = 0; $o < strlen($value); $o++) {
        if ($value[$o] == '*') {
            $newString .= $b;
            $b = ($b == '<b>') ? '</b>' : '<b>';
        }
        else if ($value[$o] == '_') {
            $newString .= $i;
            $i = ($i == '<i>') ? '</i>' : '<i>';
        }
        else {
            $newString .= $value[$o];
        }
    }

    return str_replace('{e}', '<br />', $newString);
}

function toTypeIcon($type) {
    if (strtolower($type) == 'in') {
        return '<i class="ion ion-arrow-down-c color-info"></i>&nbsp;';
    }
    return '<i class="ion ion-arrow-up-c color-warning"></i>&nbsp;';
}

function toDateTime($value) {
    return date_format(date_create($value), 'd/m/Y H:i');
}

function toDate($value) {
    return date_format(date_create($value), 'd/m/Y');
}

function toTime($value) {
    return date_format(date_create($value), 'H:i');
}

function toMinutes($value) {
    return gmdate("H:i:s", $value);
}

function boo($value) {
    return $value ? 'Sim' : 'N&atilde;o';
}

function booicon($value) {
    return $value ? '<i class="ion ion-toggle-filled color-green fa-2x"></i>' :
            '<i class="fa-2x ion ion-toggle color-light-gray"></i>';
}

function on_or_offline($value) {
    return $value ? '<span class="color-success"><i class="fa fa-circle"></i> On</span>' :
            '<span class="color-warning"><i class="fa fa-circle"></i> Off</span>';
}

function callstatus($value) {
    if ($value == 0) {
        return 'Pendente';
    }
    if ($value == 1) {
        return 'Pendente';
    }
    if ($value == 3) {
        return 'Atendido';
    }
    if ($value == 4) {
        return 'N&atildeo Atendido';
    }
    return 'Discando ...';
}

function toBadge($value) {
    if ($value == 'ANSWERED') {
        return '<span class="badge bg-green">' . __($value) . '</span>';
    }
    return '<span class="badge bg-red">' . __($value) . '</span>';
}

function toDispositionIcon($value) {
    if ($value == 'ANSWERED') {
        return '<i class="ion ion-android-done color-success"></i>&nbsp;';
    }
    return '<i class="ion ion-android-close color-danger"></i>&nbsp;';
}

function first($value, $size = 20) {

    $tp = '';
    if (strlen($value) > $size) {
        $tp = ' ...';
    }

    return substr($value, 0, $size) . $tp;
}

/**
 * Convenience method for htmlspecialchars.
 *
 * @param mixed $text Text to wrap through htmlspecialchars.  Also works with arrays, and objects.
 *    Arrays will be mapped and have all their elements escaped.  Objects will be string cast if they
 *    implement a `__toString` method.  Otherwise the class name will be used.
 * @param boolean $double Encode existing html entities
 * @param string $charset Character set to use when escaping.  Defaults to config value in 'App.encoding' or 'UTF-8'
 * @return string Wrapped text
 * @link http://book.cakephp.org/2.0/en/core-libraries/global-constants-and-functions.html#h
 */
function h($text, $double = true, $charset = null) {
    if (is_array($text)) {
        $texts = array();
        foreach ($text as $k => $t) {
            $texts[$k] = h($t, $double, $charset);
        }
        return $texts;
    } elseif (is_object($text)) {
        if (method_exists($text, '__toString')) {
            $text = (string) $text;
        } else {
            $text = '(object)' . get_class($text);
        }
    }

    static $defaultCharset = false;
    if ($defaultCharset === false) {
        $defaultCharset = Configure::read('App.encoding');
        if ($defaultCharset === null) {
            $defaultCharset = 'UTF-8';
        }
    }
    if (is_string($double)) {
        $charset = $double;
    }
    return htmlspecialchars($text, ENT_QUOTES, ($charset) ? $charset : $defaultCharset, $double);
}

/**
 * Splits a dot syntax plugin name into its plugin and classname.
 * If $name does not have a dot, then index 0 will be null.
 *
 * Commonly used like `list($plugin, $name) = pluginSplit($name);`
 *
 * @param string $name The name you want to plugin split.
 * @param boolean $dotAppend Set to true if you want the plugin to have a '.' appended to it.
 * @param string $plugin Optional default plugin to use if no plugin is found. Defaults to null.
 * @return array Array with 2 indexes.  0 => plugin name, 1 => classname
 * @link http://book.cakephp.org/2.0/en/core-libraries/global-constants-and-functions.html#pluginSplit
 */
function pluginSplit($name, $dotAppend = false, $plugin = null) {
    if (strpos($name, '.') !== false) {
        $parts = explode('.', $name, 2);
        if ($dotAppend) {
            $parts[0] .= '.';
        }
        return $parts;
    }
    return array($plugin, $name);
}

/**
 * Print_r convenience function, which prints out <PRE> tags around
 * the output of given array. Similar to debug().
 *
 * @see	debug()
 * @param array $var Variable to print out
 * @link http://book.cakephp.org/2.0/en/core-libraries/global-constants-and-functions.html#pr
 */
function pr($var) {
    if (Configure::read('debug') > 0) {
        echo '<pre>';
        print_r($var);
        echo '</pre>';
    }
}

/**
 * Merge a group of arrays
 *
 * @param array First array
 * @param array Second array
 * @param array Third array
 * @param array Etc...
 * @return array All array parameters merged into one
 * @link http://book.cakephp.org/2.0/en/development/debugging.html#am
 */
function am() {
    $r = array();
    $args = func_get_args();
    foreach ($args as $a) {
        if (!is_array($a)) {
            $a = array($a);
        }
        $r = array_merge($r, $a);
    }
    return $r;
}

/**
 * Gets an environment variable from available sources, and provides emulation
 * for unsupported or inconsistent environment variables (i.e. DOCUMENT_ROOT on
 * IIS, or SCRIPT_NAME in CGI mode).  Also exposes some additional custom
 * environment information.
 *
 * @param  string $key Environment variable name.
 * @return string Environment variable setting.
 * @link http://book.cakephp.org/2.0/en/core-libraries/global-constants-and-functions.html#env
 */
function env($key) {
    if ($key === 'HTTPS') {
        if (isset($_SERVER['HTTPS'])) {
            return (!empty($_SERVER['HTTPS']) && $_SERVER['HTTPS'] !== 'off');
        }
        return (strpos(env('SCRIPT_URI'), 'https://') === 0);
    }

    if ($key === 'SCRIPT_NAME') {
        if (env('CGI_MODE') && isset($_ENV['SCRIPT_URL'])) {
            $key = 'SCRIPT_URL';
        }
    }

    $val = null;
    if (isset($_SERVER[$key])) {
        $val = $_SERVER[$key];
    } elseif (isset($_ENV[$key])) {
        $val = $_ENV[$key];
    } elseif (getenv($key) !== false) {
        $val = getenv($key);
    }

    if ($key === 'REMOTE_ADDR' && $val === env('SERVER_ADDR')) {
        $addr = env('HTTP_PC_REMOTE_ADDR');
        if ($addr !== null) {
            $val = $addr;
        }
    }

    if ($val !== null) {
        return $val;
    }

    switch ($key) {
        case 'SCRIPT_FILENAME':
            if (defined('SERVER_IIS') && SERVER_IIS === true) {
                return str_replace('\\\\', '\\', env('PATH_TRANSLATED'));
            }
            break;
        case 'DOCUMENT_ROOT':
            $name = env('SCRIPT_NAME');
            $filename = env('SCRIPT_FILENAME');
            $offset = 0;
            if (!strpos($name, '.php')) {
                $offset = 4;
            }
            return substr($filename, 0, -(strlen($name) + $offset));
            break;
        case 'PHP_SELF':
            return str_replace(env('DOCUMENT_ROOT'), '', env('SCRIPT_FILENAME'));
            break;
        case 'CGI_MODE':
            return (PHP_SAPI === 'cgi');
            break;
        case 'HTTP_BASE':
            $host = env('HTTP_HOST');
            $parts = explode('.', $host);
            $count = count($parts);

            if ($count === 1) {
                return '.' . $host;
            } elseif ($count === 2) {
                return '.' . $host;
            } elseif ($count === 3) {
                $gTLD = array(
                    'aero',
                    'asia',
                    'biz',
                    'cat',
                    'com',
                    'coop',
                    'edu',
                    'gov',
                    'info',
                    'int',
                    'jobs',
                    'mil',
                    'mobi',
                    'museum',
                    'name',
                    'net',
                    'org',
                    'pro',
                    'tel',
                    'travel',
                    'xxx'
                );
                if (in_array($parts[1], $gTLD)) {
                    return '.' . $host;
                }
            }
            array_shift($parts);
            return '.' . implode('.', $parts);
            break;
    }
    return null;
}

/**
 * Reads/writes temporary data to cache files or session.
 *
 * @param  string $path	File path within /tmp to save the file.
 * @param  mixed  $data	The data to save to the temporary file.
 * @param  mixed  $expires A valid strtotime string when the data expires.
 * @param  string $target  The target of the cached data; either 'cache' or 'public'.
 * @return mixed  The contents of the temporary file.
 * @deprecated Please use Cache::write() instead
 */
function cache($path, $data = null, $expires = '+1 day', $target = 'cache') {
    if (Configure::read('Cache.disable')) {
        return null;
    }
    $now = time();

    if (!is_numeric($expires)) {
        $expires = strtotime($expires, $now);
    }

    switch (strtolower($target)) {
        case 'cache':
            $filename = CACHE . $path;
            break;
        case 'public':
            $filename = WWW_ROOT . $path;
            break;
        case 'tmp':
            $filename = TMP . $path;
            break;
    }
    $timediff = $expires - $now;
    $filetime = false;

    if (file_exists($filename)) {
        $filetime = @filemtime($filename);
    }

    if ($data === null) {
        if (file_exists($filename) && $filetime !== false) {
            if ($filetime + $timediff < $now) {
                @unlink($filename);
            } else {
                $data = @file_get_contents($filename);
            }
        }
    } elseif (is_writable(dirname($filename))) {
        @file_put_contents($filename, $data);
    }
    return $data;
}

/**
 * Used to delete files in the cache directories, or clear contents of cache directories
 *
 * @param mixed $params As String name to be searched for deletion, if name is a directory all files in
 *   directory will be deleted. If array, names to be searched for deletion. If clearCache() without params,
 *   all files in app/tmp/cache/views will be deleted
 * @param string $type Directory in tmp/cache defaults to view directory
 * @param string $ext The file extension you are deleting
 * @return true if files found and deleted false otherwise
 */
function clearCache($params = null, $type = 'views', $ext = '.php') {
    if (is_string($params) || $params === null) {
        $params = preg_replace('/\/\//', '/', $params);
        $cache = CACHE . $type . DS . $params;

        if (is_file($cache . $ext)) {
            @unlink($cache . $ext);
            return true;
        } elseif (is_dir($cache)) {
            $files = glob($cache . '*');

            if ($files === false) {
                return false;
            }

            foreach ($files as $file) {
                if (is_file($file) && strrpos($file, DS . 'empty') !== strlen($file) - 6) {
                    @unlink($file);
                }
            }
            return true;
        } else {
            $cache = array(
                CACHE . $type . DS . '*' . $params . $ext,
                CACHE . $type . DS . '*' . $params . '_*' . $ext
            );
            $files = array();
            while ($search = array_shift($cache)) {
                $results = glob($search);
                if ($results !== false) {
                    $files = array_merge($files, $results);
                }
            }
            if (empty($files)) {
                return false;
            }
            foreach ($files as $file) {
                if (is_file($file) && strrpos($file, DS . 'empty') !== strlen($file) - 6) {
                    @unlink($file);
                }
            }
            return true;
        }
    } elseif (is_array($params)) {
        foreach ($params as $file) {
            clearCache($file, $type, $ext);
        }
        return true;
    }
    return false;
}

/**
 * Recursively strips slashes from all values in an array
 *
 * @param array $values Array of values to strip slashes
 * @return mixed What is returned from calling stripslashes
 * @link http://book.cakephp.org/2.0/en/core-libraries/global-constants-and-functions.html#stripslashes_deep
 */
function stripslashes_deep($values) {
    if (is_array($values)) {
        foreach ($values as $key => $value) {
            $values[$key] = stripslashes_deep($value);
        }
    } else {
        $values = stripslashes($values);
    }
    return $values;
}

/**
 * Returns a translated string if one is found; Otherwise, the submitted message.
 *
 * @param string $singular Text to translate
 * @param mixed $args Array with arguments or multiple arguments in function
 * @return mixed translated string
 * @link http://book.cakephp.org/2.0/en/core-libraries/global-constants-and-functions.html#__
 */
function __($singular, $args = null) {
    if (!$singular) {
        return;
    }

    App::uses('I18n', 'I18n');
    $translated = I18n::translate($singular);
    if ($args === null) {
        return $translated;
    } elseif (!is_array($args)) {
        $args = array_slice(func_get_args(), 1);
    }
    return vsprintf($translated, $args);
}

/**
 * Returns correct plural form of message identified by $singular and $plural for count $count.
 * Some languages have more than one form for plural messages dependent on the count.
 *
 * @param string $singular Singular text to translate
 * @param string $plural Plural text
 * @param integer $count Count
 * @param mixed $args Array with arguments or multiple arguments in function
 * @return mixed plural form of translated string
 * @link http://book.cakephp.org/2.0/en/core-libraries/global-constants-and-functions.html#__n
 */
function __n($singular, $plural, $count, $args = null) {
    if (!$singular) {
        return;
    }

    App::uses('I18n', 'I18n');
    $translated = I18n::translate($singular, $plural, null, 6, $count);
    if ($args === null) {
        return $translated;
    } elseif (!is_array($args)) {
        $args = array_slice(func_get_args(), 3);
    }
    return vsprintf($translated, $args);
}

/**
 * Allows you to override the current domain for a single message lookup.
 *
 * @param string $domain Domain
 * @param string $msg String to translate
 * @param mixed $args Array with arguments or multiple arguments in function
 * @return translated string
 * @link http://book.cakephp.org/2.0/en/core-libraries/global-constants-and-functions.html#__d
 */
function __d($domain, $msg, $args = null) {
    if (!$msg) {
        return;
    }
    App::uses('I18n', 'I18n');
    $translated = I18n::translate($msg, null, $domain);
    if ($args === null) {
        return $translated;
    } elseif (!is_array($args)) {
        $args = array_slice(func_get_args(), 2);
    }
    return vsprintf($translated, $args);
}

/**
 * Allows you to override the current domain for a single plural message lookup.
 * Returns correct plural form of message identified by $singular and $plural for count $count
 * from domain $domain.
 *
 * @param string $domain Domain
 * @param string $singular Singular string to translate
 * @param string $plural Plural
 * @param integer $count Count
 * @param mixed $args Array with arguments or multiple arguments in function
 * @return plural form of translated string
 * @link http://book.cakephp.org/2.0/en/core-libraries/global-constants-and-functions.html#__dn
 */
function __dn($domain, $singular, $plural, $count, $args = null) {
    if (!$singular) {
        return;
    }
    App::uses('I18n', 'I18n');
    $translated = I18n::translate($singular, $plural, $domain, 6, $count);
    if ($args === null) {
        return $translated;
    } elseif (!is_array($args)) {
        $args = array_slice(func_get_args(), 4);
    }
    return vsprintf($translated, $args);
}

/**
 * Allows you to override the current domain for a single message lookup.
 * It also allows you to specify a category.
 *
 * The category argument allows a specific category of the locale settings to be used for fetching a message.
 * Valid categories are: LC_CTYPE, LC_NUMERIC, LC_TIME, LC_COLLATE, LC_MONETARY, LC_MESSAGES and LC_ALL.
 *
 * Note that the category must be specified with a numeric value, instead of the constant name.  The values are:
 *
 * - LC_ALL       0
 * - LC_COLLATE   1
 * - LC_CTYPE     2
 * - LC_MONETARY  3
 * - LC_NUMERIC   4
 * - LC_TIME      5
 * - LC_MESSAGES  6
 *
 * @param string $domain Domain
 * @param string $msg Message to translate
 * @param integer $category Category
 * @param mixed $args Array with arguments or multiple arguments in function
 * @return translated string
 * @link http://book.cakephp.org/2.0/en/core-libraries/global-constants-and-functions.html#__dc
 */
function __dc($domain, $msg, $category, $args = null) {
    if (!$msg) {
        return;
    }
    App::uses('I18n', 'I18n');
    $translated = I18n::translate($msg, null, $domain, $category);
    if ($args === null) {
        return $translated;
    } elseif (!is_array($args)) {
        $args = array_slice(func_get_args(), 3);
    }
    return vsprintf($translated, $args);
}

/**
 * Allows you to override the current domain for a single plural message lookup.
 * It also allows you to specify a category.
 * Returns correct plural form of message identified by $singular and $plural for count $count
 * from domain $domain.
 *
 * The category argument allows a specific category of the locale settings to be used for fetching a message.
 * Valid categories are: LC_CTYPE, LC_NUMERIC, LC_TIME, LC_COLLATE, LC_MONETARY, LC_MESSAGES and LC_ALL.
 *
 * Note that the category must be specified with a numeric value, instead of the constant name.  The values are:
 *
 * - LC_ALL       0
 * - LC_COLLATE   1
 * - LC_CTYPE     2
 * - LC_MONETARY  3
 * - LC_NUMERIC   4
 * - LC_TIME      5
 * - LC_MESSAGES  6
 *
 * @param string $domain Domain
 * @param string $singular Singular string to translate
 * @param string $plural Plural
 * @param integer $count Count
 * @param integer $category Category
 * @param mixed $args Array with arguments or multiple arguments in function
 * @return plural form of translated string
 * @link http://book.cakephp.org/2.0/en/core-libraries/global-constants-and-functions.html#__dcn
 */
function __dcn($domain, $singular, $plural, $count, $category, $args = null) {
    if (!$singular) {
        return;
    }
    App::uses('I18n', 'I18n');
    $translated = I18n::translate($singular, $plural, $domain, $category, $count);
    if ($args === null) {
        return $translated;
    } elseif (!is_array($args)) {
        $args = array_slice(func_get_args(), 5);
    }
    return vsprintf($translated, $args);
}

/**
 * The category argument allows a specific category of the locale settings to be used for fetching a message.
 * Valid categories are: LC_CTYPE, LC_NUMERIC, LC_TIME, LC_COLLATE, LC_MONETARY, LC_MESSAGES and LC_ALL.
 *
 * Note that the category must be specified with a numeric value, instead of the constant name.  The values are:
 *
 * - LC_ALL       0
 * - LC_COLLATE   1
 * - LC_CTYPE     2
 * - LC_MONETARY  3
 * - LC_NUMERIC   4
 * - LC_TIME      5
 * - LC_MESSAGES  6
 *
 * @param string $msg String to translate
 * @param integer $category Category
 * @param mixed $args Array with arguments or multiple arguments in function
 * @return translated string
 * @link http://book.cakephp.org/2.0/en/core-libraries/global-constants-and-functions.html#__c
 */
function __c($msg, $category, $args = null) {
    if (!$msg) {
        return;
    }
    App::uses('I18n', 'I18n');
    $translated = I18n::translate($msg, null, null, $category);
    if ($args === null) {
        return $translated;
    } elseif (!is_array($args)) {
        $args = array_slice(func_get_args(), 2);
    }
    return vsprintf($translated, $args);
}

/**
 * Shortcut to Log::write.
 *
 * @param string $message Message to write to log
 * @return void
 * @link http://book.cakephp.org/2.0/en/core-libraries/global-constants-and-functions.html#LogError
 */
function LogError($message) {
    App::uses('CakeLog', 'Log');
    $bad = array("\n", "\r", "\t");
    $good = ' ';
    CakeLog::write('error', str_replace($bad, $good, $message));
}

/**
 * Searches include path for files.
 *
 * @param string $file File to look for
 * @return Full path to file if exists, otherwise false
 * @link http://book.cakephp.org/2.0/en/core-libraries/global-constants-and-functions.html#fileExistsInPath
 */
function fileExistsInPath($file) {
    $paths = explode(PATH_SEPARATOR, ini_get('include_path'));
    foreach ($paths as $path) {
        $fullPath = $path . DS . $file;

        if (file_exists($fullPath)) {
            return $fullPath;
        } elseif (file_exists($file)) {
            return $file;
        }
    }
    return false;
}

/**
 * Convert forward slashes to underscores and removes first and last underscores in a string
 *
 * @param string String to convert
 * @return string with underscore remove from start and end of string
 * @link http://book.cakephp.org/2.0/en/core-libraries/global-constants-and-functions.html#convertSlash
 */
function convertSlash($string) {
    $string = trim($string, '/');
    $string = preg_replace('/\/\//', '/', $string);
    $string = str_replace('/', '_', $string);
    return $string;
}

/**
 * Aplica qualquer mascara ao numero
 * ex: $this->mask($phone, '# (##) ####-####')
 */
function mask($val, $mask) {
    $maskared = '';
    $k = 0;
    for ($i = 0; $i <= strlen($mask) - 1; $i++) {
        if ($mask[$i] == '#') {
            if (isset($val[$k]))
                $maskared .= $val[$k++];
        }
        else {
            if (isset($mask[$i]))
                $maskared .= $mask[$i];
        }
    }
    return $maskared;
}

/**
 * Aplica qualquer mascara ao numero
 * ex: $this->intMask($number)
 */
function intMask($val, $mask = '###.###.###.###.###') {

    $maskared = '';
    $v = strlen($val) - 1;

    for ($i = strlen($mask) - 1; $i >= 0; $i--) {
        if ($mask[$i] == '#') {
            if (isset($val[$v]))
                $maskared = $val[$v] . $maskared;
            $v--;
        }
        else {
            if (isset($val[$v]))
                if (isset($mask[$i]))
                    $maskared = $mask[$i] . $maskared;
        }
    }
    return $maskared;
}
