LONDON-IOS/GMERemittance/Invite/InviteViewController.swift

//
//  InviteViewController.swift
//  GMERemittance
//
//  Created by FMI-12 on 2/28/18.
//  Copyright © 2018 Gobal Money Express Co. Ltd. All rights reserved.
//

import UIKit

class InviteViewController: UIViewController {
    
    public var bonusStatus: Bool?
    public static var inviteStatus: Bool?
    public static var notificationCode = ""
    
    private var inviteviewmodel = InviteViewModel()
    
    @IBOutlet weak var labelNumberRefer: UILabel!
    @IBOutlet weak var labelEarnedAmount: UILabel!
    
    private var activityIndicator: UIActivityIndicatorView = UIActivityIndicatorView()
    
    public static var inviteConnectionTimeOutCheck = 0
    public var fromNotification: Int?
    
    
    override func viewWillAppear(_ animated: Bool) {
        self.tabBarController?.navigationController?.navigationBar.barTintColor = UIColor(hex:0xEC1C24)
    }
    
    /**
        Request once again. After submitting a form view, redirect back to this view and provide updated number of count related to invitation.
     */
    override func viewDidAppear(_ animated: Bool) {
        setUpAnotherLoginListener(genericviewmodel: inviteviewmodel)
        setUpNetworkListener()
        if (!(UserDefaults.standard.object(forKey: "com.gmeremit.isVerified") as! Bool)) {
            popUpMessage(value: 14)
            enableUserInteractions()
        }
        
        if (InviteViewController.inviteStatus != nil) && InviteViewController.inviteStatus == true {
            disableUserInteractions()
            showActivityIndicator(activityIndicator: activityIndicator)
            inviteviewmodel.fetchInvitee()
        }
    }
    
    /**
     Check internet connection
     */
    func setUpNetworkListener() {
        
        inviteviewmodel.internetConnection.value = nil
        inviteviewmodel.internetConnection.bind { [unowned self] in
            guard $0 != nil else {
                return
            }
            self.stopLoading()
            self.popUpMessage(value: 15)
        }
    }
    
    override func viewDidLoad() {
        super.viewDidLoad()
        
        /**
            Nav Bar as per notification type i.e. push and internal notification
        */
        
        inviteviewmodel.inviteeConnectionTimeOut.value = nil
        /**
         connection timeout
         */
        inviteviewmodel.inviteeConnectionTimeOut.bind { [unowned self] in
            guard $0 != nil else {
                return
            }
            self.stopLoading()
            if self.fromNotification != 0{
                if InviteViewController.inviteConnectionTimeOutCheck == 0{
                    InviteViewController.inviteConnectionTimeOutCheck = InviteViewController.inviteConnectionTimeOutCheck+1
                    self.popUpMessage(value: 36)
                }
            }
        }
        

        if  InviteViewController.notificationCode == "500" {
            setUpNavBar(id: 201, title: "Invite")
        } else if InviteViewController.notificationCode == "p500"{
            setUpNavBar(id: 207, title: "Invite")
        }else {
            setUpNavBar(id: 202,title: "")
        }
        
        if !Reachability.isConnectedToNetwork() {
            self.stopLoading()
            self.popUpMessage(value: 15)
        } else {
            
            /**
                Request Invitee Api to fetch number of invitation and total earned values
             */
            self.startLoading()
            inviteviewmodel.fetchInvitee()
            
            inviteviewmodel.inviteeFetch.bind{ [unowned self] in
                guard $0 != nil else {
                    return
                }
                guard $0! else {
                    self.stopLoading()
                    self.popUpMessageError(value: 10, message: self.inviteviewmodel.getErrorMessage())
                    return
                }
                self.stopLoading()
                
                /**
                    Update UI only when api respond with data
                 */
                if (self.inviteviewmodel.getInviteeArray().count > 0){
                    self.viewUpdate()
                }else{
                    
                }
            }
        }
    }
    
    /**
        Provide number of invitations and total earned values.
        Count Invitation and Total Earned values as per the status.
     */
    func viewUpdate(){
        var inviteePendingCount: Int = 0
        var inviteeActiveCount: Int = 0

        for i in inviteviewmodel.getInviteeArray()[0..<inviteviewmodel.getCount()]{
            if i.status == "pending" {
                inviteePendingCount = inviteePendingCount + 1
            } else if i.status == "active" {
                inviteeActiveCount = inviteeActiveCount + 1
            } else {
                
            }
        }
        self.labelNumberRefer.text = String(inviteePendingCount)
        self.labelEarnedAmount.text = "+" + String(inviteeActiveCount * 7000)
    }
    
    /**
        Disable user interaction while fetching data from api
     */
    func startLoading(){
        disableUserInteractions()
        showActivityIndicator(activityIndicator: activityIndicator)
    }
    
    /**
        Enable user interaction after fetching data from api
     */
    func stopLoading(){
        self.enableUserInteractions()
        if self.activityIndicator.isAnimating {
            self.dismissActivityIndicator(activityIndicator: self.activityIndicator)
        }
    }
    
    /**
        Redirect to view name ReferringViewController. A user can refer app to others through.
     */
    @IBAction func buttonInviteTap(_ sender: Any) {
        performSegue(withIdentifier: "refering", sender: nil)
        
    }
    
    /**
        Redirect to view name InviteViewController.
        A user can view the list of referred people who still haven't used the app.
     */
    @IBAction func pendingTap(_ sender: UITapGestureRecognizer) {
        InviteViewController.inviteStatus = false
        bonusStatus = true
        performSegue(withIdentifier: "earned", sender: nil)
    }
    /**
     Redirect to view name InviteViewController.
     A user can view the list of referred people who still haven't used the app.
     */
    @IBAction func earnedTap(_ sender: UITapGestureRecognizer) {
        InviteViewController.inviteStatus = false
        bonusStatus = false
        performSegue(withIdentifier: "earned", sender: nil)
    }
    
    override func didReceiveMemoryWarning() {
        super.didReceiveMemoryWarning()
        // Dispose of any resources that can be recreated.
    }
    

    /**
        Redirect to EarnedViewController. If var bonusStatus is true then redirect to Pending segment else redirect to Earned segment.
     */
    override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
        if (segue.identifier == "earned") {
                let vc = segue.destination as! EarnedViewController
                vc.bonusStatus = bonusStatus
                vc.inviteeArray = inviteviewmodel.getInviteeArray().reversed()
        }
    }
}