//
//  ProfileViewModel.swift
//  GMERemittance
//
//  Created by FMI-12 on 1/29/18.
//  Copyright © 2018 Gobal Money Express Co. Ltd. All rights reserved.
//

import Foundation


class ProfileViewModel: ModelExtension {
    
    
    var userDataAvailable:Box<Bool?> = Box(nil)
    var imageSubmitted:Box<Bool?> = Box(nil)
    
    var profileConnectionTimeOut: Box<Bool?> = Box(nil)
    
    var availableBalance: String?
    var rewardPoint: String?
    var walletNumber: String?
    
    private var profileInfo: ProfileModel!
    
    private var user_id: String!
  
    private var userImageDocUrl: String?
    
    /**
        Api request for user Information
     - parameter String: UserId
     */
    func fetchUserInfo(userId: String?) {
        if userId == nil {
            user_id =  UserDefaults.standard.object(forKey: "com.gmeremit.username") as? String
        } else {
            user_id = userId!
        }
        if !Reachability.isConnectedToNetwork() {
            self.internetConnection.value = false
        } else {
            RestApiMananger.sharedInstance.getUserDetails(userId: self.user_id) { result in
                switch result {
                case let .success(userJSON):
                    do {
                        self.profileInfo = try JSONDecoder().decode(ProfileModel.self, from: userJSON.rawData())
     
                        if userId == nil {
                            self.availableBalance = userJSON["availableBalance"].stringValue
                            self.rewardPoint = userJSON["rewardPoint"].stringValue
                            self.walletNumber = userJSON["walletNumber"].stringValue
                        }
                      
                        self.userDataAvailable.value = true
                        
                    } catch {
                       
                        self.userDataAvailable.value = false
                    }
                   
                case let .failure(errorJSON):
                    self.setErrorMessage(message: "Update Failed:" +  errorJSON["message"].stringValue)
                    self.userDataAvailable.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.fetchUserInfo(userId: userId)
                        }

                    }
                case .logOutUser():
                    RestApiMananger.sharedInstance.cancelExistingNetworkCalls()
                    self.anotherLogin.value = true
                case .timeOut:
                    self.profileConnectionTimeOut.value = false
                }
            }
        }
    }
    
    /**
        Submit the Image provided
     - parameter docType: type of document
     - parameter imageBase64 data
     */
    func provideImageForSubmission(docType: String, imageBase64: String) {
        if !Reachability.isConnectedToNetwork() {
            self.internetConnection.value = false
        } else {
            
            let docParam = ["documentType": docType, "file": imageBase64]
            RestApiMananger.sharedInstance.submitDocument(param: docParam, userId: self.user_id!) { result in
                switch result {
                case let .success(imageJSON):
                    if let docUrl = imageJSON["documentUrl"].rawString() {
                        self.updateUserInfo(param: ["dpUrl": docUrl])
                    } else {
                        self.setErrorMessage(message:"No image URL generated")
                        self.imageSubmitted.value = false
                    }
                case let .failure(errorJSON):
                    self.setErrorMessage(message: errorJSON["message"].stringValue)
                    self.imageSubmitted.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.provideImageForSubmission(docType: docType, imageBase64: imageBase64)
                        }
                    }
                case .logOutUser():
                    RestApiMananger.sharedInstance.cancelExistingNetworkCalls()
                    self.anotherLogin.value = true
                case .timeOut:
                   self.profileConnectionTimeOut.value = false
                }
            }
        }
    }

    /**
        Api request to update user information
     - parameter param: User information is in Dictionary
     */
    func updateUserInfo(param: [String: String]) {
        if !Reachability.isConnectedToNetwork() {
            self.internetConnection.value = false
        } else {
            RestApiMananger.sharedInstance.updateUserDetail (userId: user_id, param: param) { result in
                switch result {
                case let .success(fetchedJSON):
                    UserDefaults.standard.set(fetchedJSON["dpUrl"].stringValue, forKey: "com.gmeremit.dpUrl")
                    self.imageSubmitted.value = true
                case let .failure(errorJSON):
                    self.setErrorMessage(message: errorJSON["message"].stringValue)
                   self.imageSubmitted.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.updateUserInfo(param: param)
                        }
                    }
                case .logOutUser():
                    RestApiMananger.sharedInstance.cancelExistingNetworkCalls()
                    self.anotherLogin.value = true
                case .timeOut:
                    self.profileConnectionTimeOut.value = false
                }
            }
        }
        
    }
    
    /**
      to get proile info
     - returns: profile Info
     */
    func getProfileModel() -> ProfileModel {
        return profileInfo
    }
    
     /**
     To get full name
     - returns: Full name
     */

    func getFullName() -> String {
        if profileInfo.middleName == nil {
            return profileInfo.firstName + " " + profileInfo.lastName
        } else {
            return profileInfo.firstName + " " + profileInfo.middleName! + " " + profileInfo.lastName
        }
    }
    /**
        To get user balance
     - returns: Amount
     */
    func getAvailableBalance() -> String {
        if let balance = availableBalance {
            return balance
        }
        return "N/A"

    }
    
    /**
     To get user email
     - returns: email
     */
    func getEmail() -> String {
        if let email = profileInfo.email {
            return email
        }
        return "Email: N/A"
    }
    
    /**
     To get user Phone nos.
     - returns: Phone nos.
     */
    func getPhone() -> String {
        if let phone = profileInfo.mobileNumber {
            return phone
        }
        return "Phone: N/A"
    }
    
    /**
     To get user wallet Nos.
     - returns: wallet Nos.
     */
    func getWalletNumber() -> String {
        if let walletNum = walletNumber {
            return walletNum
        }
        return "Wallet Number: N/A"
    }
    
    /**
     To get user bank name
     - returns: bank name
     */
    func getBankName() -> String {
        if let bankName = profileInfo.primaryBankName {
            return bankName
        }
        return "Primary Bank: N/A"
    }
    
    //Added to determine if the user has filled kyc form
    func hasFilledKYC() -> Bool {
        if profileInfo.kyc {
            return true
        }
        return false
    }
    
    /// To deteemine verified account
    func isVerified() -> Bool {
        if profileInfo.verified! {
            return true
        }
        return false
    }
    
    /**
     To get user reward point
     - returns: points
     */
    func getRewardPoint() -> String {
        if let points = rewardPoint {
            return points
        }
        return "N/A"
    }
}