Preferences

//
//  Preferences.swift
//  cfn
//
//  Created by nguyen.van.hung on 11/10/16.
//  Copyright © 2016 Le Thi Van Anh. All rights reserved.
//

import Foundation
import KeychainSwift
import AES256CBC

class Preferences {
    private static let kCurrentLocale = "CurrentLocale"
    private static let kDefaultLocale = "ja"
    private static let kEmail = "Email"
    private static let kPassword = "Password"
    private static let kTypeLogin = "TypeLogin"
    private static let kKeyAES = "12345678901234567890123456789012"

    private static let _instance = Preferences()
    static func sharedInstance() -> Preferences {
        return _instance
    }

    func currentLocale() -> String {
        if let locale = UserDefaults.standard.value(forKey: Preferences.kCurrentLocale) {
            return locale as! String
        }
        return Preferences.kDefaultLocale
    }

    func setCurrentLocale(_ locale: String) {
        UserDefaults.standard.set(locale, forKey: Preferences.kCurrentLocale)
        UserDefaults.standard.synchronize()
    }

    func getTypeLogin() -> Int {
        if let typeLogin = UserDefaults.standard.value(forKey: Preferences.kTypeLogin) {
            return typeLogin as! Int
        }
        return -1
    }

    func setTypeLogin(typeLogin: Int) {
        UserDefaults.standard.set(typeLogin, forKey: Preferences.kTypeLogin)
        UserDefaults.standard.synchronize()
    }

    func getInfoLogin() -> (String, String) {
        let keychain = KeychainSwift()
        if let email = keychain.get(Preferences.kEmail), let password = keychain.get(Preferences.kPassword) {
            if let passswordDecrypted = AES256CBC.decryptString(password, password: Preferences.kKeyAES) {
                return (email, passswordDecrypted)
            }
        }
        return ("", "")
    }

    func setInfoLogin(email: String, password: String) {
        let keychain = KeychainSwift()
        if let passswordEncrypted = AES256CBC.encryptString(password, password: Preferences.kKeyAES) {
            keychain.set(passswordEncrypted, forKey: Preferences.kPassword)
            keychain.set(email, forKey: Preferences.kEmail)
        }
    }

}