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<?php
/**
* Simple output message and args prepared
*
* @author Jakub Westfalewski <jwest@jwest.pl>
*/
class IO {
/**
* Max line height
*/
const COMMAND_LENGTH = 50;
/**
* args for run screen
* @var array
*/
protected static $_args = array
(
'help' => array('value' => FALSE, 'description' => 'show help for news2kindle'),
'grab' => array('value' => FALSE, 'description' => 'grab articles from google reader'),
'mobi' => array('value' => FALSE, 'description' => 'prepare mobi format'),
'send' => array('value' => FALSE, 'description' => 'send articles to kindle'),
'login' => array('value' => NULL, 'description' => 'your login to google account *requred'),
'password' => array('value' => NULL, 'description' => 'your password to google account *required'),
'kindle' => array('value' => NULL, 'description' => 'your kindle email *required'),
'items' => array('value' => 100, 'description' => 'max items to grab in run'),
'render' => array('value' => 'std', 'description' => 'name of html template for newspapper'),
//'timeout' => array('value' => FALSE, 'description' => 'timeout is most important than items count'),
);
/**
* Write on screen text line
* @param string $message
* @param bool $broken_line
*/
public static function msg($message, $broken_line = TRUE)
{
echo ( $broken_line ? "\n" : "" ) . $message;
}
/**
* Write command for status
* @param string $message
*/
public static function command($message)
{
$output_whitespaces = '';
for ($i = strlen($message); $i <= self::COMMAND_LENGTH; ++$i )
{
$output_whitespaces .= '-';
}
self::msg( $message . ' ' . $output_whitespaces.' ' );
}
/**
* Status - OK
*/
public static function ok()
{
$colored_string = "\033[1;37m" . "\033[42m" . ' OK ' . "\033[0m";
self::msg( $colored_string, FALSE );
}
/**
* Status - Error
*/
public static function error($message = NULL)
{
$colored_string = "\033[1;37m" . "\033[41m" . ' ERROR ' . "\033[0m";
self::msg( $colored_string, FALSE );
if ( $message !== NULL )
{
self::msg( ' - ' . $message );
}
}
/**
* Get run args
* @param string $name key config
* @return mixed config value
*/
public static function arg($name)
{
return self::$_args[$name]['value'];
}
/**
* Get config from ini
* @param string $path
* @return void
*/
protected static function _get_config($path)
{
$config = parse_ini_file( $path . 'config.ini' );
foreach($config as $key => $value)
{
self::$_args[$key]['value'] = $value;
}
}
/**
* Prepare args for script
* (from http://php.net/manual/en/features.commandline.php)
* @param array $argv array
* @param string $path
* @return bool success or error
*/
public static function prepare_args($argv, $path)
{
self::command('Parse args');
self::_get_config($path);
array_shift($argv);
$out = array();
foreach ( $argv as $arg )
{
if ( substr($arg,0,2) == '--' )
{
$eqPos = strpos($arg,'=');
if ( $eqPos === false )
{
$key = substr($arg,2);
$out[$key] = isset($out[$key]) ? $out[$key] : true;
}
else
{
$key = substr($arg,2,$eqPos-2);
$out[$key] = substr($arg,$eqPos+1);
}
}
else if ( substr($arg,0,1) == '-' )
{
if ( substr($arg,2,1) == '=' )
{
$key = substr($arg,1,1);
$out[$key] = substr($arg,3);
}
else
{
$chars = str_split(substr($arg,1));
foreach ( $chars as $char )
{
$key = $char;
$out[$key] = isset($out[$key]) ? $out[$key] : true;
}
}
}
else
{
$out[] = $arg;
}
}
try
{
$args = self::_validate_args($out);
foreach ( $args as $key => $value )
{
self::$_args[$key]['value'] = $value;
}
}
catch(Exception $e)
{
self::error($e->getMessage());
return false;
}
self::ok();
return true;
}
/**
* Validate args for script
* (from http://php.net/manual/en/features.commandline.php)
* @param array $argv array
* @return array args
*/
private static function _validate_args($args)
{
if( array_key_exists('help', $args) OR array_key_exists('h', $args) )
{
$args['grab'] = false;
$args['mobi'] = false;
$args['send'] = false;
$args['login'] = false;
$args['password'] = false;
$args['kindle'] = false;
}
foreach ( $args as $key => $arg )
{
if ( strlen($key) === 1 )
{
foreach ( self::$_args as $keyA => $argA )
{
if($keyA[0] === $key )
{
unset( $args[$key] );
$args[$keyA] = $arg;
$key = $keyA;
}
}
}
if ( ! array_key_exists($key, self::$_args) )
{
throw new Exception('Param "'.$key.'" is invalid!');
}
}
foreach ( self::$_args as $key => $arg )
{
if( self::$_args[$key]['value'] === NULL AND !array_key_exists($key, $args) )
{
throw new Exception('Param "'.$key.'" must be declared!');
}
}
return $args;
}
/**
* Prepare help
* @return array
*/
public static function get_help()
{
$output = array();
foreach ( self::$_args as $arg => $item )
{
$output[$arg] = $item['description'];
}
return $output;
}
}
|
