LONDON-IOS/GMERemittance/Login/LoginViewModel.swift

//
//  LoginViewModel.swift
//  GMERemittance
//
//  Created by Sujal on 12/12/17.
//  Copyright © 2017 Gobal Money Express Co. Ltd. All rights reserved.
//

import Foundation

class LoginViewModel: SignUpViewModel {
    
    var loggedin: Box<Bool?> = Box(nil)
    var loggedInConnectionTimeOut: Box<Bool?> = Box(nil)
    var userId: String?
    var pass: String?
    var dpUrl: String?
    var userName: String?
    var fillSignUpCode: Bool = false
}

extension LoginViewModel {
    /**
        To add user id and password
     - parameter userId: account userid
     - parameter password: account password
     */
    func setCredentials(userId: String, password: String) {
        self.userId = userId
        self.pass = password.toBase64()
    }
    
    /**
     Validate userid and password
     - parameter userId: account userid
     - parameter password: account password
     */

    func checkParams(username: String, password: String) -> isValid {
        if (username.isBlank || password.isBlank) {
            return .InValid("Please fill all the fields")
        } else {
            if isNumber(username: username) {
                if isValidPhone(phone: username) {
                    if isValidPasswordLength(password: password) {
                        return .Valid
                    } else {
                        return .InValid("InValid Password Length")
                    }
                }
                return .InValid("InValid Phone")
            } else {
                if isValidEmail(email: username) {
                    if isValidPasswordLength(password: password) {
                        return .Valid
                    } else {
                        return .InValid("InValid Password Length")
                    }
                }
                return .InValid("InValid Email")
            }
        }
    }
    
    /**
        Api requesr for Login
     */
    func logIn() {
        if !Reachability.isConnectedToNetwork() {
            self.internetConnection.value = false
        } else {
            let passwordBase64Data = Data(base64Encoded: pass!)!
            let password = String(data: passwordBase64Data, encoding: .utf8)!
            RestApiMananger.sharedInstance.signInUser(userId: self.userId!, password: password) { result in
                switch result {
                case let .success(loggedJSON):
                    let accessCodeBase64 = (loggedJSON["accessCode"].stringValue + ":" + RestApiMananger.sharedInstance.getUUID()).toBase64()
                    
                    self.dpUrl = loggedJSON["dpUrl"].stringValue
                    
                    UserDefaults.standard.set(loggedJSON["dpUrl"].stringValue, forKey: "com.gmeremit.dpUrl")
                    UserDefaults.standard.set(loggedJSON["walletNumber"].stringValue, forKey: "com.gmeremit.walletNumber")
                    UserDefaults.standard.set(loggedJSON["primaryBankName"].stringValue, forKey: "com.gmeremit.bankName")
                   
                   let fullName = loggedJSON["firstName"].stringValue + " " + loggedJSON["middleName"].stringValue + " " + loggedJSON["lastName"].stringValue
                    
                    UserDefaults.standard.set(fullName, forKey: "com.gmeremit.fullName")
                    UserDefaults.standard.set(accessCodeBase64, forKey: "com.gmeremit.accessCode")
                    UserDefaults.standard.set(loggedJSON["userId"].stringValue, forKey: "com.gmeremit.username")
                    UserDefaults.standard.set(loggedJSON["nickName"].stringValue, forKey: "com.gmeremit.nickName")
                    UserDefaults.standard.set(loggedJSON["availableBalance"].stringValue, forKey: "com.gmeremit.balance")
                    UserDefaults.standard.set(loggedJSON["rewardPoint"].stringValue, forKey: "com.gmeremit.rewardPoint")
                    UserDefaults.standard.set(loggedJSON["verified"].boolValue, forKey: "com.gmeremit.isVerified")
                    UserDefaults.standard.set(loggedJSON["kyc"].boolValue, forKey: "com.gmeremit.isKYCSubmitted")
                    UserDefaults.standard.set(true, forKey: "com.gmeremit.loginStatus")
                    UserDefaults.standard.set(loggedJSON["email"].stringValue, forKey: "com.gmeremit.email")
                    UserDefaults.standard.set(loggedJSON["mobileNumber"].stringValue, forKey: "com.gmeremit.mobileNumber")
                    UserDefaults.standard.set(loggedJSON["sourceId"].stringValue,forKey: "com.gmeremit.sourceId")
                    UserDefaults.standard.set(self.pass, forKey: "com.gmeremit.password")
                    UserDefaults.standard.set(loggedJSON["isReferred"].boolValue, forKey: "com.gmeremit.isReferred")
                    self.loggedin.value = true
                
                case let .failure(errorJSON):
                    UserDefaults.standard.set(false, forKey: "com.gmeremit.loginStatus")
                    let errorMessage = errorJSON["message"].stringValue
                    self.setErrorMessage(message: errorMessage)
                    
                    if errorMessage.contains("is already registered, please click") {
                         UserDefaults.standard.set(self.userId, forKey: "com.gmeremit.username")
                        self.fillSignUpCode = true
                    }
                    self.loggedin.value = false
                
                case .updateAccessCode:
                    return
                case .logOutUser():
                    return
                case .timeOut:
                    self.loggedInConnectionTimeOut.value = false
                    return
                }
            }
        }
    }

    /**
     To redirect Code fill up view
     - returns: code status
     */
    func redirectToCodeFillUp() -> Bool {
        return fillSignUpCode
    }
}