<?php
// +----------------------------------------------------------------------
// | SentCMS [ WE CAN DO IT JUST THINK IT ]
// +----------------------------------------------------------------------
// | Copyright (c) 2013 http://www.tensent.cn All rights reserved.
// +----------------------------------------------------------------------
// | Author: molong <molong@tensent.cn> <http://www.tensent.cn>
// +----------------------------------------------------------------------
namespace app\controller\admin;

use app\controller\Admin;
use think\facade\Db;

class Database extends Admin{
	
	/**
	 * @title 数据备份
	 */
	public function export(){
		$list  = Db::query('SHOW TABLE STATUS');
		$list  = array_map('array_change_key_case', $list);

		$this->data['data'] = array(
			'list'  => $list
		);
		return $this->data;
	}
	/**
	 * @title 数据导入
	 */
	public function import(){
		//列出备份文件列表
		$path = app()->getRuntimePath() . 'backup';
		if (!is_dir($path)) {
			mkdir($path, 0755, true);
		}
		$path = realpath($path);
		$flag = \FilesystemIterator::KEY_AS_FILENAME;
		$glob = new \FilesystemIterator($path, $flag);

		$list = array();
		foreach ($glob as $name => $file) {
			if (preg_match('/^\d{8,8}-\d{6,6}-\d+\.sql(?:\.gz)?$/', $name)) {
				$name = sscanf($name, '%4s%2s%2s-%2s%2s%2s-%d');

				$date = "{$name[0]}-{$name[1]}-{$name[2]}";
				$time = "{$name[3]}:{$name[4]}:{$name[5]}";
				$part = $name[6];

				if (isset($list["{$date} {$time}"])) {
					$info         = $list["{$date} {$time}"];
					$info['part'] = max($info['part'], $part);
					$info['size'] = $info['size'] + $file->getSize();
				} else {
					$info['part'] = $part;
					$info['size'] = $file->getSize();
				}
				$extension        = strtoupper(pathinfo($file->getFilename(), PATHINFO_EXTENSION));
				$info['compress'] = ($extension === 'SQL') ? '-' : $extension;
				$info['time']     = strtotime("{$date} {$time}");

				$list["{$date} {$time}"] = $info;
			}
		}
		$this->data['data'] = array(
			'list'  => $list
		);
		return $this->data;
	}
}