//
//  CommonDBManager.swift
//  dcwj
//
//  Created by Virgil on 16/8/30.
//  Copyright © 2016年 Virgil. All rights reserved.
//

import UIKit
let DATABASE_DB_NAME = "CommonFrame_2"
let DATABASE_DB_EXT = "db"
let DATABASE_DB_ALL_NAME = "\(DATABASE_DB_NAME).\(DATABASE_DB_EXT)"
class CommonDBManager: NSObject {
    /// 获取数据库地址
    class func getDBPath() -> String {
        if CommonValue.getDBPath() != "" {
            return CommonUntils.getAppPath() + CommonValue.getDBPath()
        } else {
            return NSHomeDirectory() + "/Documents/" + DATABASE_DB_ALL_NAME
        }
    }

    class func initDB() {
        //获取应用程序的路径
        let searchPaths = NSSearchPathForDirectoriesInDomains(.documentDirectory, .userDomainMask, true)
        let documentFolderPath = searchPaths[0]
        let dbFilePath = documentFolderPath + "/"+DATABASE_DB_ALL_NAME
        print("==DBPath:\(dbFilePath)")
        let fm = FileManager.default
        let isExist = fm.fileExists(atPath: dbFilePath)

        /**
         *  如果不存在 拷贝工程里的数据库到 documents下
         */
        if !isExist {
            let backupDbPath = Bundle.main.path(forResource: DATABASE_DB_NAME, ofType: DATABASE_DB_EXT)

            do {
                _ = try fm.copyItem(atPath: backupDbPath!, toPath: dbFilePath)
            } catch {

            }
        } else {
            print(getDBPath())
            //存在则判断版本更新数据库
        }

    }
}