<?php

/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/

namespace Symfony\Component\Console\Formatter;

use Symfony\Component\Console\Exception\InvalidArgumentException;

/**
* Formatter style class for defining styles.
*
* @author Konstantin Kudryashov <ever.zet@gmail.com>
*/
class OutputFormatterStyle implements OutputFormatterStyleInterface
{
private static $availableForegroundColors = array(
'black' => array('set' => 30, 'unset' => 39),
'red' => array('set' => 31, 'unset' => 39),
'green' => array('set' => 32, 'unset' => 39),
'yellow' => array('set' => 33, 'unset' => 39),
'blue' => array('set' => 34, 'unset' => 39),
'magenta' => array('set' => 35, 'unset' => 39),
'cyan' => array('set' => 36, 'unset' => 39),
'white' => array('set' => 37, 'unset' => 39),
'default' => array('set' => 39, 'unset' => 39),
);
private static $availableBackgroundColors = array(
'black' => array('set' => 40, 'unset' => 49),
'red' => array('set' => 41, 'unset' => 49),
'green' => array('set' => 42, 'unset' => 49),
'yellow' => array('set' => 43, 'unset' => 49),
'blue' => array('set' => 44, 'unset' => 49),
'magenta' => array('set' => 45, 'unset' => 49),
'cyan' => array('set' => 46, 'unset' => 49),
'white' => array('set' => 47, 'unset' => 49),
'default' => array('set' => 49, 'unset' => 49),
);
private static $availableOptions = array(
'bold' => array('set' => 1, 'unset' => 22),
'underscore' => array('set' => 4, 'unset' => 24),
'blink' => array('set' => 5, 'unset' => 25),
'reverse' => array('set' => 7, 'unset' => 27),
'conceal' => array('set' => 8, 'unset' => 28),
);

private $foreground;
private $background;
private $options = array();

/**
* Initializes output formatter style.
*
* @param string|null $foreground The style foreground color name
* @param string|null $background The style background color name
* @param array $options The style options
*/
public function __construct(string $foreground = null, string $background = null, array $options = array())
{
if (null !== $foreground) {
$this->setForeground($foreground);
}
if (null !== $background) {
$this->setBackground($background);
}
if (count($options)) {
$this->setOptions($options);
}
}

/**
* Sets style foreground color.
*
* @param string|null $color The color name
*
* @throws InvalidArgumentException When the color name isn't defined
*/
public function setForeground($color = null)
{
if (null === $color) {
$this->foreground = null;

return;
}

if (!isset(static::$availableForegroundColors[$color])) {
throw new InvalidArgumentException(sprintf(
'Invalid foreground color specified: "%s". Expected one of (%s)',
$color,
implode(', ', array_keys(static::$availableForegroundColors))
));
}

$this->foreground = static::$availableForegroundColors[$color];
}

/**
* Sets style background color.
*
* @param string|null $color The color name
*
* @throws InvalidArgumentException When the color name isn't defined
*/
public function setBackground($color = null)
{
if (null === $color) {
$this->background = null;

return;
}

if (!isset(static::$availableBackgroundColors[$color])) {
throw new InvalidArgumentException(sprintf(
'Invalid background color specified: "%s". Expected one of (%s)',
$color,
implode(', ', array_keys(static::$availableBackgroundColors))
));
}

$this->background = static::$availableBackgroundColors[$color];
}

/**
* Sets some specific style option.
*
* @param string $option The option name
*
* @throws InvalidArgumentException When the option name isn't defined
*/
public function setOption($option)
{
if (!isset(static::$availableOptions[$option])) {
throw new InvalidArgumentException(sprintf(
'Invalid option specified: "%s". Expected one of (%s)',
$option,
implode(', ', array_keys(static::$availableOptions))
));
}

if (!in_array(static::$availableOptions[$option], $this->options)) {
$this->options[] = static::$availableOptions[$option];
}
}

/**
* Unsets some specific style option.
*
* @param string $option The option name
*
* @throws InvalidArgumentException When the option name isn't defined
*/
public function unsetOption($option)
{
if (!isset(static::$availableOptions[$option])) {
throw new InvalidArgumentException(sprintf(
'Invalid option specified: "%s". Expected one of (%s)',
$option,
implode(', ', array_keys(static::$availableOptions))
));
}

$pos = array_search(static::$availableOptions[$option], $this->options);
if (false !== $pos) {
unset($this->options[$pos]);
}
}

/**
* {@inheritdoc}
*/
public function setOptions(array $options)
{
$this->options = array();

foreach ($options as $option) {
$this->setOption($option);
}
}

/**
* Applies the style to a given text.
*
* @param string $text The text to style
*
* @return string
*/
public function apply($text)
{
$setCodes = array();
$unsetCodes = array();

if (null !== $this->foreground) {
$setCodes[] = $this->foreground['set'];
$unsetCodes[] = $this->foreground['unset'];
}
if (null !== $this->background) {
$setCodes[] = $this->background['set'];
$unsetCodes[] = $this->background['unset'];
}
if (count($this->options)) {
foreach ($this->options as $option) {
$setCodes[] = $option['set'];
$unsetCodes[] = $option['unset'];
}
}

if (0 === count($setCodes)) {
return $text;
}

return sprintf("\033[%sm%s\033[%sm", implode(';', $setCodes), $text, implode(';', $unsetCodes));
}
}