<?php
/**
 * Mime lookup
 *
 * @private
 */
class Less_Mime {

	/**
	 * this map is intentionally incomplete
	 * if you want more, install 'mime' dep
	 * @var array<string,string>
	 */
	private static $types = [
		'.htm' => 'text/html',
		'.html' => 'text/html',
		'.gif' => 'image/gif',
		'.jpg' => 'image/jpeg',
		'.jpeg' => 'image/jpeg',
		'.png' => 'image/png',
		'.ttf' => 'application/x-font-ttf',
		'.otf' => 'application/x-font-otf',
		'.eot' => 'application/vnd.ms-fontobject',
		'.woff' => 'application/x-font-woff',
		'.svg' => 'image/svg+xml',
	];

	public static function lookup( $filepath ) {
		$parts = explode( '.', $filepath );
		$ext = '.' . strtolower( array_pop( $parts ) );

		return self::$types[$ext] ?? null;
	}

	public static function charsets_lookup( $type = null ) {
		// assumes all text types are UTF-8
		return $type && preg_match( '/^text\//', $type ) ? 'UTF-8' : '';
	}
}
