<?php
if ( ! defined( 'ABSPATH' ) ) {
	exit;
}
class WaicCache {
	private $directories = array();

	public function init() {
		$this->initFilesystem();
	}
	public static function getInstance() {
		static $instance;
		if (!$instance) {
			$instance = new WaicCache();
		}
		return $instance;
	}
	public static function _() {
		return self::getInstance();
	}
	public function getDirectory( $key ) {
		return isset($this->directories[$key]) ? $this->directories[$key] : false;
	}
	protected function initFilesystem() {
		$directories = array();

		foreach ($directories as $key => $dir) {
			$fullPath = $this->makeDirectory($dir);
			if (false !== $fullPath) {
				$this->directories[$key] = $fullPath;
			}
		}
	}
	protected function makeDirectory( $directory ) {
		$uploads = wp_upload_dir();

		$basedir = $uploads['basedir'];
		$dir = $basedir . $directory;
		if (!is_dir($dir)) {
			if (false === @mkdir($dir, 0775, true)) {
				return false;
			}
		} else {
			if (!is_writable($dir)) {
				return false;
			}
		}
		return $dir;
	}
	public function cleanCache( $dir, $file ) {
		$cachePath = $this->getDirectory($dir) . WAIC_DS . $file;
		if (file_exists($cachePath)) {
			unlink($cachePath);
		}
	}
}