<commit_before><?php
/**
 * @copyright Copyright (c) 2016 <NAME> <<EMAIL>>
 *
 * @author <NAME> <<EMAIL>>
 *
 * @license GNU AGPL version 3 or any later version
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as
 * published by the Free Software Foundation, either version 3 of the
 * License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 */

namespace OCA\Theming;

use OCP\App\AppPathNotFoundException;
use OCP\App\IAppManager;
use OCP\Files\IAppData;
use OCP\Files\NotFoundException;
use OCP\Files\SimpleFS\ISimpleFile;
use OCP\IConfig;
use OCP\Files\IRootFolder;

class Util {

	/** @var IConfig */
	private $config;

	/** @var IAppManager */
	private $appManager;

	/** @var IAppData */
	private $appData;

	/**
	 * Util constructor.
	 *
	 * @param IConfig $config
	 * @param IAppManager $appManager
	 * @param IAppData $appData
	 */
	public function __construct(IConfig $config, IAppManager $appManager, IAppData $appData) {
		$this->config = $config;
		$this->appManager = $appManager;
		$this->appData = $appData;
	}

	/**
	 * @param string $color rgb color value
	 * @return bool
	 */
	public function invertTextColor($color) {
		$l = $this->calculateLuminance($color);
		if($l>0.5) {
			return true;
		} else {
			return false;
		}
	}

	/**
	 * get color for on-page elements:
	 * theme color by default, grey if theme color is to bright
	 * @param $color
	 * @return string
	 */
	public function elementColor($color) {
		$l = $this->calculateLuminance($color);
		if($l>0.8) {
			return '#555555';
		} else {
			return $color;
		}
	}

	/**
	 * @param string $color rgb color value
	 * @return float
	 */
	public function calculateLuminance($color) {
		$hex = preg_replace("/[^0-9A-Fa-f]/", '', $color);
		if (strlen($hex) === 3) {
			$hex = $hex{0} . $hex{0} . $hex{1} . $hex{1} . $hex{2} . $hex{2};
		}
		if (strlen($hex) !== 6) {
			return 0;
		}
		$r = hexdec(substr($hex, 0, 2));
		$g = hexdec(substr($hex, 2, 2));
		$b = hexdec(substr($hex, 4, 2));
		return (0.299 * $r + 0.587 * $g + 0.114 * $b)/255;
	}

	/**
	 * @param $color
	 * @return string base64 encoded radio button svg<commit_msg>Use same lightness calculation as the SCSS compiler for theming<commit_after><?php
/**
 * @copyright Copyright (c) 2016 <NAME> <<EMAIL>>
 *
 * @author <NAME> <<EMAIL>>
 *
 * @license GNU AGPL version 3 or any later version
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as
 * published by the Free Software Foundation, either version 3 of the
 * License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 */

namespace OCA\Theming;

use OCP\App\AppPathNotFoundException;
use OCP\App\IAppManager;
use OCP\Files\IAppData;
use OCP\Files\NotFoundException;
use OCP\Files\SimpleFS\ISimpleFile;
use OCP\IConfig;
use OCP\Files\IRootFolder;
use Leafo\ScssPhp\Compiler;

class Util {

	/** @var IConfig */
	private $config;

	/** @var IAppManager */
	private $appManager;

	/** @var IAppData */
	private $appData;

	/**
	 * Util constructor.
	 *
	 * @param IConfig $config
	 * @param IAppManager $appManager
	 * @param IAppData $appData
	 */
	public function __construct(IConfig $config, IAppManager $appManager, IAppData $appData) {
		$this->config = $config;
		$this->appManager = $appManager;
		$this->appData = $appData;
	}

	/**
	 * @param string $color rgb color value
	 * @return bool
	 */
	public function invertTextColor($color) {
		$l = $this->calculateLuminance($color);
		if($l>0.5) {
			return true;
		} else {
			return false;
		}
	}

	/**
	 * get color for on-page elements:
	 * theme color by default, grey if theme color is to bright
	 * @param $color
	 * @return string
	 */
	public function elementColor($color) {
		$l = $this->calculateLuminance($color);
		if($l>0.8) {
			return '#555555';
		} else {
			return $color;
		}
	}

	/**
	 * @param string $color rgb color value
	 * @return float
	 */
	public function calculateLuminance($color) {
		$hex = preg_replace("/[^0-9A-Fa-f]/", '', $color);
		if (strlen($hex) === 3) {
			$hex = $hex{0} . $hex{0} . $hex{1} . $hex{1} . $hex{2} . $hex{2};
		}
		if (strlen($hex) !== 6) {
			return 0;
		}
		$red = hexdec(substr($hex, 0, 2));
		$green = hexdec(substr($hex, 2, 2));
		$blue = hexdec(substr($hex, 4, 2));
		$compiler = new Compiler();
		$hsl = $compiler->toHSL($red, $green, $blue);
		return $hsl[3]/100;
	}

	/**
	 * @param $color
	 * @return string base64 encoded radio button svg
{'fraction_non_alphanumeric': 0.1425627575871113, 'fraction_numerical': 0.01667291120269764, 'mean_word_length': 3.4528773978315264, 'pattern_counts': {'":': 0, '<': 19, '<?xml version=': 0, '>': 32, 'https://': 0, 'lorem ipsum': 0, 'www.': 2, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
{'dir': 'git-commits-cleaned', 'id': '2851012', 'n_tokens_mistral': 1962, 'n_tokens_neox': 1780, 'n_words': 578}