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<?php
/**
 * Register SPL Autoloader
 *
 * @package wvt
 * @since 1.0.0
 */

spl_autoload_register( function ( $class ) {
	$prefix   = 'WVT\\';
	$base_dir = WVT_DIR . 'includes/class/';
	$len      = strlen( $prefix );

	if ( strncmp( $prefix, $class, $len ) !== 0 ) {
		return;
	}

	$relative_class = substr( $class, $len );
	$class_path     = explode( '\\', $relative_class );
	$relative_class = array_pop( $class_path );
	$class_path     = strtolower( implode( '/', $class_path ) );

	preg_match_all( '/((?:^|[A-Z])[a-z]+)/', $relative_class, $matches );
	$class_name = 'class-' . implode( '-', $matches[0] ) . '.php';
	$file       = rtrim( $base_dir, '/' ) . '/' . $class_path . '/' . strtolower( $class_name );

	if ( is_link( $file ) ) {
		$file = readlink( $file );
	}

	if ( is_file( $file ) ) {
		require $file;
	}
} );