//
//  ReferralCodeViewModel.swift
//  GMERemittance
//
//  Created by Sujal on 4/20/18.
//  Copyright © 2018 Gobal Money Express Co. Ltd. All rights reserved.
//

import Foundation

class ReferralCodeViewModel: ModelExtension {
    
    var referralCodeValidated: Box<Bool?> = Box(nil)
    
    var referralConnectionTimeOut: Box<Bool?> = Box(nil)
    
    var validReferralCode: String!
    
    
    let user_id = UserDefaults.standard.object(forKey: "com.gmeremit.username") as? String
    
    var param: [String: String] = [String: String]()
    
    /**
        Verification of referral code
     - parameter referralCode: referral code
     */
    func validateReferralCode(referralCode: String) {
        
        let spaceStrippedCode = referralCode.removeSpacesTrailingPreceding()
        
        if isValidReferralCode(code: spaceStrippedCode) {
            
            if !Reachability.isConnectedToNetwork() {
                self.internetConnection.value = false
            } else {
                param["referralCode"] = spaceStrippedCode
                
                RestApiMananger.sharedInstance.validateReferralCode(param: param) { result in
                    switch result {
                    case let .success(referralCodeJson):
                        self.validReferralCode = referralCodeJson["referralCode"].rawString()
                        self.referralCodeValidated.value = true
                    case .failure(_):
                        self.setErrorMessage(message: "Invalid referral code")
                       self.referralCodeValidated.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.validateReferralCode(referralCode: referralCode)
                            }
                        }
                    case .logOutUser():
                        self.anotherLogin.value = true
                    case .timeOut:
                        self.referralConnectionTimeOut.value = false
                    }
                }
            }
        } else {
            self.setErrorMessage(message: "Empty referral Code")
            self.referralCodeValidated.value = false
        }
    }
    
    /**
        Validation for empty
     */
    func isValidReferralCode(code: String) -> Bool {
        if code.isBlank || code.isEmpty {
            return false
        }
        return true
    }
    
    /**
     - returns: valid referral code
     */
    func getValidReferralCode() -> String {
        return validReferralCode
    }
}