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<?php
namespace Maatwebsite\Excel\Imports;
use Illuminate\Support\Collection;
use Illuminate\Support\Str;
use InvalidArgumentException;
class HeadingRowFormatter
{
/**
* @const string
*/
const FORMATTER_NONE = 'none';
/**
* @const string
*/
const FORMATTER_SLUG = 'slug';
/**
* @var string
*/
protected static $formatter;
/**
* @var callable[]
*/
protected static $customFormatters = [];
/**
* @var array
*/
protected static $defaultFormatters = [
self::FORMATTER_NONE,
self::FORMATTER_SLUG,
];
/**
* @param array $headings
*
* @return array
*/
public static function format(array $headings): array
{
return (new Collection($headings))->map(function ($value) {
return static::callFormatter($value);
})->toArray();
}
/**
* @param string $name
*/
public static function default(string $name = null)
{
if (null !== $name && !isset(static::$customFormatters[$name]) && !in_array($name, static::$defaultFormatters, true)) {
throw new InvalidArgumentException(sprintf('Formatter "%s" does not exist', $name));
}
static::$formatter = $name;
}
/**
* @param string $name
* @param callable $formatter
*/
public static function extend(string $name, callable $formatter)
{
static::$customFormatters[$name] = $formatter;
}
/**
* Reset the formatter.
*/
public static function reset()
{
static::default();
}
/**
* @param mixed $value
*
* @return mixed
*/
protected static function callFormatter($value)
{
static::$formatter = static::$formatter ?? config('excel.imports.heading_row.formatter', self::FORMATTER_SLUG);
// Call custom formatter
if (isset(static::$customFormatters[static::$formatter])) {
$formatter = static::$customFormatters[static::$formatter];
return $formatter($value);
}
if (static::$formatter === self::FORMATTER_SLUG) {
return Str::slug($value, '_');
}
// No formatter (FORMATTER_NONE)
return $value;
}
}