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<?php
namespace Wcms;
class Colors extends Item
{
protected $file = Model::CSS_DIR . 'tagcolors.css';
protected $rawcss = "";
protected $tagcolor = [];
public function __construct(string $file = 'tagcolors.css', array $taglist = [])
{
$this->setfile($file);
if (file_exists($this->file)) {
$this->rawcss = $this->readcssfile();
$this->tagcolor = $this->parsetagcss($this->rawcss);
}
if (!empty($taglist)) {
$this->tagcolor = $this->removeaddtags($taglist);
$this->rawcss = $this->tocss($this->tagcolor);
$this->writecssfile($this->file, $this->rawcss);
}
}
/**
* Read file containing css
* @return string raw css or empty string
*/
public function readcssfile(): string
{
$rawcss = file_get_contents($this->file);
if (is_string($rawcss)) {
return $rawcss;
}
return '';
}
/**
* Check if new tags have been created and generate them a background color
* @param array $taglist associative array using tag as key
* @return array associative array of `tag => background-color`
*/
public function removeaddtags(array $taglist = []): array
{
$tagcolor = [];
foreach ($taglist as $tag => $tagcount) {
if (key_exists($tag, $this->tagcolor)) {
$tagcolor[$tag] = $this->tagcolor[$tag];
} else {
$tagcolor[$tag] = '#' . dechex(rand(50, 255)) . dechex(rand(50, 255)) . dechex(rand(50, 255));
}
}
return $tagcolor;
}
/**
* Transform a CSS string in a array of datas
* @param string $rawcss CSS string to parse
* @return array associative array of `tag => background-color`
*/
public function parsetagcss(string $rawcss): array
{
$pattern = '%.tag\_([a-z0-9\-\_]*)\s*\{\s*background-color:\s*(#[A-Fa-f0-9]{6})\;\s*\}%';
preg_match_all($pattern, $rawcss, $matches);
$tagcolor = array_combine($matches[1], $matches[2]);
if ($tagcolor !== false) {
return $tagcolor;
} else {
return [];
}
}
/**
* Generate CSS string from datas
* @param array $tagcolor associative array of `tag => background-color`
* @return string CSS
*/
public function tocss(array $tagcolor): string
{
$css = "";
foreach ($tagcolor as $tag => $color) {
$css .= PHP_EOL . '.tag_' . $tag . ' { background-color: ' . $color . '; }';
}
return $css;
}
/**
* Write css in the file
* @param string $rawcss
* @throws \InvalidArgumentException If cant create
*/
public function writecssfile(string $file, string $rawcss)
{
accessfile($file, true);
if (!file_put_contents($file, $rawcss)) {
throw new \InvalidArgumentException("cant create file : $this->file", 1);
}
}
/**
* Update tagcolors based on datas
* @param array $tagcolor associative array of `tag => background-color`
*/
public function update(array $tagcolor)
{
$this->settagcolor($tagcolor);
$this->rawcss = $this->tocss($this->tagcolor);
$this->writecssfile($this->file, $this->rawcss);
}
public function htmlcolorpicker(): string
{
$html = '<ul>';
foreach ($this->tagcolor as $tag => $color) {
$i = '<input type="color" name="tagcolor[' . $tag . ']" value="' . $color . '" id="color_' . $tag . '">';
$l = '<label for="color_' . $tag . '" >' . $tag . '</label>';
$html .= "\n<li>$i$l</li>";
}
$html .= PHP_EOL . '</ul>';
return $html;
}
// ______________________ G E T _________________________
public function rawcss()
{
return $this->rawcss;
}
public function tagcolor()
{
return $this->tagcolor;
}
// _______________________ S E T _________________________
/**
* @throws \InvalidArgumentException If cant access file
*/
public function setfile(string $path)
{
accessfile($path);
$this->file = $path;
}
public function setrawcss($rawcss)
{
if (is_string($rawcss)) {
$this->rawcss = $rawcss;
}
}
public function settagcolor($tagcolor)
{
if (is_array($tagcolor)) {
$this->tagcolor = $tagcolor;
}
}
}
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