//
//  MobileRechargeViewModel.swift
//  GMERemittance
//
//  Created by Sujal on 1/14/18.
//  Copyright © 2018 Gobal Money Express Co. Ltd. All rights reserved.
//

import Foundation

class MobileRechargeViewModel: ModelExtension {
    
    
    let user_id = UserDefaults.standard.object(forKey: "com.gmeremit.username") as? String
    
    private var mobileNumber: String!
    private var countryCode: String!
    private var networkOperator: String!
    private var topUpAmount: String = String("0")
    private var country: String!
    private var countryId: String!
    private var telecomId: String!
    private var transactionNumber: String!
    private var rechargeResponseDetails: [String: String]?
    private var topUpAmountNepal: [String]!
    private var topUpAmountKorea: [String]!
    private var mobileOperatorArray = [MobileOperator]()
    private var rechargeAmountObject: AvailableRechargeAmounts?
    
    var isValidNumber: Box<Bool?> = Box(nil)
    var mobileToppedUp: Box<Bool?> = Box(nil)
    var mobileOperatorBool: Box<Bool?> = Box(nil)
    var mobileRechargeListBool: Box<Bool?> = Box(nil)
    var invalidDeviceMessage: String = "nil"
    
    
    var rechargeConnectionTimeOut: Box<Bool?> = Box(nil)
    
    /**
     Check mobile is valid or not
     
     - Parameter enteredNumber: mobile number
     */
    func updateMobileNumber(enteredNumber: String) {
        mobileNumber = enteredNumber
        print("number \(enteredNumber)")
        //checkMobileNumber(number: mobileNumber)
    }
    
    /**
        Invalid error message
     
     - Parameter error: json error message
     */
    func setInvalidDeviceMessageError(error: String){
        self.invalidDeviceMessage = error
    }
    
    /**
     - returns : invalid device error messsage
     */
    func getInvalideDeviceMessageError() -> String{
        if self.invalidDeviceMessage != "nil"{
            return invalidDeviceMessage
        }
        return "Unknown error."
    }
    
    /**
     - returns: mobile number
     */
    func getMobileNumber() -> String {
        return mobileNumber
    }
    
    /**
     - returns : transaction number
     */
    func getTransactionNumber() -> String {
        return transactionNumber
    }
    
    /**
     Set country code
     
     - Parameter countryCode: country provided with unique code
     */
    func setCountryCode(countryCode: String) {
        self.countryCode = countryCode
    }
    
    /**
     Get country code
     
     - returns: country code
     */
    func getCountryCode() -> String {
        return countryCode
    }
    
    /**
     - returns: network operator
     */
    func getNetworkOperator() -> String {
        return networkOperator
    }
    
    /**
     - returns: topUp amount
     */
    func getTopUpAmount() -> String {
        return topUpAmount
    }
    
    /**
     Set top up amount
     - Parameter topUpAmount: set topUp amount
     */
    func setTopUpAmount(topUpAmount: String) {
        self.topUpAmount = topUpAmount
    }
    
    /**
     Get recharge response details
     
     - returns: recharge response details
     */
    func getRechargeResponseDetails() -> [String: String] {
        if let responseDetails = rechargeResponseDetails{
            return responseDetails
        }else{
            return ["N/A":"N/A"]
        }
    }
    
    /**
     Check mobile number
     
     - Parameter number: mobile number
     */
    func checkMobileNumber(number: String) {
        print("number \(number)")
        guard number.count == 10 else {
            print("number false \(number)")
            print("number false \(number.count)")
            
            isValidNumber.value = false
            return
        }
        print("number else \(number)")
        isValidNumber.value = true
    }
    
    /**
     TODO -> Check this function is used or not.
     */
    func getTopUpAmountforNepal() -> [String]{
        if topUpAmountNepal == nil {
            topUpAmountNepal = ["100", "200", "500"]
        }
        return topUpAmountNepal!
    }
    
    /**
     TODO -> Check this function is used or not.
     */
    func getTopUpAmountforKorea() -> [String]{
        if topUpAmountKorea == nil {
            topUpAmountKorea = ["100", "200", "300", "500", "700"]
        }
        return topUpAmountKorea!
    }
    
    /**
     Get telecom operator
     
     - Parameter isNativeCountry:  boolean to check native country
     - Parameter mobileNumber: mobile number
     
     - returns: integer to check type of operator
     */
    func getTelecomOperator(isNativeCountry: Bool, mobileNumber: String) -> Int {
        if isNativeCountry {
            country = "Nepal"
            countryId = "151"
            switch mobileNumber.prefix(4) {
            case "9841":
                networkOperator = "NTC"
                return 1
            case "9803":
                networkOperator = "NCell"
                return 2
            default:
                networkOperator = "Unidentified"
                return 0
            }
        } else {
            country = "Korea"
            countryId = "118"
            networkOperator = "KoreanTelecom"
            return 1
        }
    }
    
    /**
     - returns: array of mobile operator
     */
    func getMobileOperator() -> [MobileOperator] {
        return self.mobileOperatorArray
    }
    
    /**
     - returns: array of recharge amounts
     */
    func getRechargeAmounts() -> AvailableRechargeAmounts? {
        if let object = self.rechargeAmountObject{
            return object
        }
        return nil
    } 
    
    /**
     - Set telecom id
     - Parameter telecomeId: telecom id
     */
    func setTelecomId(telecomId: String){
        self.telecomId = telecomId
    }
    
    
    
    /**
     Recharge request
     
     - Parameter password: password of user
     - Parameter transferAmount: amount selected by user to transfer
     */
    func topUpMobile(password: String,transferAmount: String) {
        
        let params: [String: String] = ["userId": getUserId(),
                                        "amount": transferAmount,
                                        "mobileNumber": mobileNumber,
                                        "country": countryId,
                                        "telecomId": telecomId,
                                        "txnPassword": password]
        
        if !Reachability.isConnectedToNetwork() {
            self.internetConnection.value = false
        } else {
            RestApiMananger.sharedInstance.rechargeMobile(rechargeDetails: params) { result in
                switch result {
                case let .success(rechargedJSON):
                    self.rechargeResponseDetails = ["receiverPhone": rechargedJSON["receiverPhone"].stringValue,
                                                    "date": rechargedJSON["date"].stringValue,
                                                    "amount": rechargedJSON["amount"].stringValue]
                    self.transactionNumber = rechargedJSON["transactionId"].stringValue
                    self.mobileToppedUp.value = true
                case let .failure(errorJSON):
                    self.setErrorMessage(message: errorJSON["message"].stringValue)
                    self.mobileToppedUp.value = false
                case .updateAccessCode:
                    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.topUpMobile(password: password, transferAmount: transferAmount)
                        }
                    }
                case .logOutUser():
                    RestApiMananger.sharedInstance.cancelExistingNetworkCalls()
                    self.anotherLogin.value = true
                case .timeOut:
                    self.rechargeConnectionTimeOut.value = false
                }
            }
        }
    }
    
    /**
     Request for mobile operator
     */
    func callMobileOperatorApi(){
        let params: [String: String] = ["countryID": "151"]
        if !Reachability.isConnectedToNetwork() {
            self.internetConnection.value = false
        }
        else{
            RestApiMananger.sharedInstance.callMobileOperator(rechargeDetails: params) { result in
                switch result {
                case let .success(rechargedJSON):
                    if rechargedJSON.count > 0 {
                        for i in 0 ... (rechargedJSON.count-1) {
                            do{
                                let mobileOperator = try JSONDecoder().decode(MobileOperator.self, from: rechargedJSON[i].rawData())
                                self.mobileOperatorArray.append(mobileOperator)
                            }
                            catch {
                                
                            }
                        }
                    }
                    self.mobileOperatorBool.value = true
                    self.mobileToppedUp.value = true
                case let .failure(errorJSON):
                    self.setErrorMessage(message: errorJSON["message"].stringValue)
                    self.mobileOperatorBool.value = false
                case .updateAccessCode:
                    
                    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.callMobileOperatorApi()
                        }
                    }                case .logOutUser():
                        RestApiMananger.sharedInstance.cancelExistingNetworkCalls()
                        self.anotherLogin.value = true
                case .timeOut:
                    self.rechargeConnectionTimeOut.value = false
                }
            }
        }
    }
    
    
    
    
    /**
     Recharge Amount request
     
     - Parameter telecomId: id that represent telecom type like NTC,NCELL
     - Parameter mobileNumber: mobile number
     */
    func callApiForListofRechargeAmounts(telecomId: String,mobileNumber: String) {
        let params: [String: String] = ["telecomId": telecomId,
                                        "mobileNumber": mobileNumber]
        
        if !Reachability.isConnectedToNetwork() {
            self.internetConnection.value = false
        } else {
            RestApiMananger.sharedInstance.amountsForMobileRecharge(rechargeDetails: params) { result in
                switch result {
                case let .success(rechargedJSON):
                    if rechargedJSON.count > 0 {
                        do{
                            let rechargeAmounts = try JSONDecoder().decode(AvailableRechargeAmounts.self, from: rechargedJSON.rawData())
                            self.rechargeAmountObject = rechargeAmounts
                        }catch let error{
                            print("Exception Error \(error)")
                        }
                    }
                    self.mobileRechargeListBool.value = true
                case let .failure(errorJSON):
                    self.setErrorMessage(message: errorJSON["message"].stringValue)
                    self.setInvalidDeviceMessageError(error: errorJSON["message"].stringValue)
                    self.mobileRechargeListBool.value = false
                case .updateAccessCode:
                    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.callApiForListofRechargeAmounts(telecomId: telecomId,mobileNumber: mobileNumber)
                        }
                    }
                case .logOutUser():
                    RestApiMananger.sharedInstance.cancelExistingNetworkCalls()
                    self.anotherLogin.value = true
                case .timeOut:
                    self.rechargeConnectionTimeOut.value = false
                }
            }
        }
    }
}