//
//  LocalStorage.swift
//  PaiAi
//
//  Created by mac on 2016/10/28.
//  Copyright © 2016年 FFIB. All rights reserved.
//

import UIKit
import ObjectMapper

extension UserDefaults {
    struct Group: ArrayUserDefaultable {
        enum ArrayDefaultKey: String {
            case lastVisitGroup
        }
    }
}

func addGroupInfoToRecent(_ groupInfo: GroupModel) {
    let group = NSKeyedArchiver.archivedData(withRootObject: groupInfo.toJSON())
    let md5Id = groupInfo.group_id.digestString(algorithm: .md5)
    let data: [String : Data] = [md5Id: group]
    if var array = UserDefaults.Group.array(forKey: .lastVisitGroup) as? [[String : Data]] {
        var arr = [[String: Data]]()
        for i in 0..<array.count {
            if (Array(array[i].keys) as [String])[0] != md5Id {
                arr.append(array[i])
            }
        }
        if arr.count == 3 {
            arr.removeFirst()
        }
        arr.append(data)
        UserDefaults.Group.set(arr, forKey: .lastVisitGroup)
    } else {
        UserDefaults.Group.set([data], forKey: .lastVisitGroup)
    }
}

func searchGroupInfoRecent(index: Int) -> GroupModel {
    if let locale = UserDefaults.Group.array(forKey: .lastVisitGroup) as? [[String : Data]] {
        guard let dict = NSKeyedUnarchiver.unarchiveObject(with: (Array(locale[index].values) as [Data])[0]) as? [String: Any] else {
            return GroupModel()
        }
        return GroupModel(map: Map(mappingType: .fromJSON, JSON: dict))
    }
    return GroupModel()
}

func removeGroupInfoRecent(groupId: String) {
    let md5Id = groupId.digestString(algorithm: .md5)
    if let array = UserDefaults.Group.array(forKey: .lastVisitGroup) as? [[String : Data]] {
       let newArr  = array.filter({ (element) -> Bool in
            return !element.keys.contains(md5Id)
        })
        UserDefaults.Group.set(newArr, forKey: .lastVisitGroup)
    }
}

func returnGroupInfoCount() -> Int {
    if let locale = UserDefaults.Group.array(forKey: .lastVisitGroup) as? [[String : Data]] {
        return locale.count
    }
    return 0
}