//
//  MoneyRequestViewModel.swift
//  GMERemittance
//
//  Created by Sujal on 3/5/18.
//  Copyright © 2018 Gobal Money Express Co. Ltd. All rights reserved.
//

import Foundation

class MoneyRequestViewModel: ModelExtension {

    var moneyRequests: [Transaction]?
    
    var requestRejected: Box<Bool?> = Box(nil)
    
    var moneyRequestConnectionTimeOut: Box<Bool?> = Box(nil)
    
    private var password: String!
    
    private let user_id =  UserDefaults.standard.object(forKey: "com.gmeremit.username") as! String
    
}

extension MoneyRequestViewModel {
    
    /**
        To set password for money request
     - parameter password: user id password
     */
    func setPassword(password: String) {
        self.password = password
    }
    
    /**
     To get the password
     - returns: password
     */
    func getPassword() -> String {
        return password
    }
    
    /**
     To get data for transaction
     - parameter transactionID: transaction id
     - parameter transferType: transferType
     - returns: transaction info
     */
    func getParam(transactionID: String, transferType: String) -> [String: String] {
        let param = ["userId": user_id,
                     "transferType": transferType,
                     "transactionId": transactionID,
                     "txnPassword": getPassword()]
        return param
    }
    
    /**
        Set the money request list
     - parameter requests: transaction array
     */
    func setMoneyRequests(requests: [Transaction]) {
        moneyRequests = requests
    }
    
    /**
     Get the money request list
     - returns: transaction array
     */
    func getMoneyRequests() -> [Transaction] {
        if moneyRequests != nil {
            return moneyRequests!
        }
        return []
    }
    
    /**
     To get the money request
     - parameter atIndex: position of Transaction in an array
     - returns: transaction
     */
    func getMoneyRequest(atIndex: Int) -> Transaction {
        return moneyRequests![atIndex]
    }
    
    /**
     To remove the money request
     - parameter atIndex: position of Transaction in an array
     */
    func removeMoneyRequest(atIndex: Int) {
        moneyRequests?.remove(at: atIndex)
    }
    
    /**
        Api request for reject the money request
     - parameter transactionID: String id for transaction
     - parameter transferType: String transfer type
     */
    func rejectRequest(transactionID: String, transferType: String) {
        if !Reachability.isConnectedToNetwork() {
            self.internetConnection.value = false
        } else {
            let param = getParam(transactionID: transactionID, transferType: transferType)
            RestApiMananger.sharedInstance.rejectMoneyRequest(param: param) { result in
               
                switch result {
                case .success(_):
                    self.requestRejected.value = true
                case let .failure(errorJSON):
                    self.setErrorMessage(message: errorJSON["message"].stringValue)
                   self.requestRejected.value = false
                case .updateAccessCode:
                    return
                        RestApiMananger.sharedInstance.updateAccessCode(userId: self.user_id, password: self.getLoginPassword()) {
                            result in
                            if result != "Error"{
                                let uuid = RestApiMananger.sharedInstance.getUUID()
                                UserDefaults.standard.set((result + ":" + uuid).toBase64(), forKey: "com.gmeremit.accessCode")
                                self.rejectRequest(transactionID: transactionID, transferType: transferType)
                            }
                    }
                case .logOutUser():
                    RestApiMananger.sharedInstance.cancelExistingNetworkCalls()
                    self.anotherLogin.value = true
                    
                case .timeOut:
                    self.moneyRequestConnectionTimeOut.value = false
                }
            }
        }
    }
}