//
//  SimpleViewModel.swift
//  PaiAi
//
//  Created by mac on 2016/12/5.
//  Copyright © 2016年 FFIB. All rights reserved.
//

import Foundation
import RxCocoa
import RxSwift

enum DataType: String {
    case groupData = "groups"
    case orderData = "orders"
    case messageData = "messages"
}

protocol SimpleViewModel: ViewModel where T == Request.NetworkResponse {
    associatedtype Request: NetworkRequest
    
    var request: Request { get }
    var networkApi: NetworkApi { get }
    mutating func fetchData(_ refresh: Bool)
}

extension SimpleViewModel where Request.NetworkResponse: GroupParsable {
    
    mutating func fetchData(_ refresh: Bool = true) {
        guard hasMoreData else {
            return
        }
        page += 1
        let copyself = self
        networkApi.post(request: request) { (res) in
            if refresh {
                 copyself.models.value = res
            }else {
                copyself.models.value += res
            }
        }
    }
}