//
//  TransferWaitingController.swift
//  KoinBonds
//
//  Created by helmi taufiq alhakim on 12/02/20.
//  Copyright © 2020 helmi taufiq alhakim. All rights reserved.
//

import UIKit

class TransferWaitingController: UIViewController, TransferProtocol {

    @IBOutlet weak var timerLabel: UILabel!
    @IBOutlet weak var transferView: TransferView!
    @IBOutlet weak var containerScrollView: UIScrollView!

    var currentMinute = 59
    var currentSecond = 59
    var currentHour = 71
    private var timer = Timer()
    private var timerIsOn = false
    private var dateNow: Date!

    override func viewDidLoad() {
        super.viewDidLoad()

        timerLabel.isHidden = false
        configureSubView()
        initTimer()
        initTransfer()
    }

    func configureSubView(){
        containerScrollView.addSubView(transferView)
    }

    func onClickTransfer(index: CGFloat, isExpand: Bool) {
        let frame = containerScrollView.convert(transferView.contentView.frame, from: transferView)
        containerScrollView.setContentOffset(CGPoint(x: 0, y: (frame.maxY - containerScrollView.bounds.size.height)), animated: true)
    }

    private func initTimer() {
        dateNow = Date()

        if !timerIsOn {
            timer = Timer.scheduledTimer(timeInterval: 1.0, target: self, selector: #selector(onTick), userInfo: nil, repeats: true)
            timerIsOn = true
        }
    }

    @objc func onTick() {
        if ((currentHour > 0 || currentMinute > 0 || currentSecond > 0) && (currentMinute >= 0 || currentHour >= 0)) {

            if (currentSecond == 0) {
                if (currentMinute == 0) {
                    currentMinute = 59
                    currentHour -= 1
                } else{
                    currentMinute -= 1
                    currentSecond = 59
                }
            }
            else if (currentSecond > 0) {
                currentSecond -= 1
            }
            else if (currentSecond < 1) {
                timer.invalidate()
            }

            if (currentHour >= 0) {
                timerLabel.text = NSLocalizedString("", comment: "") + " \(timeString(hour: TimeInterval(currentHour), minute: TimeInterval(currentMinute), second: TimeInterval(currentSecond)))"
            }
        }
        else {
            currentHour = 71
            currentMinute = 59
            currentSecond = 59
            timer.invalidate()
            timerIsOn = false
            timerLabel.isHidden = true
        }
    }

    private func timeString(hour: TimeInterval,minute: TimeInterval, second: TimeInterval) -> String {
        let hour = Int(hour)
        let minute = Int(minute)  % 60
        let seconds = Int(second) % 60

        return String(format: "%02i:%02i:%02i", hour, minute, seconds)
    }

}