//
//  WrittenInstructionsViewController.swift
//  Guibe
//
//  Created by Max Hunt on 02/06/2019.
//  Copyright © 2019 8. All rights reserved.
//

import UIKit
import MapKit

class WrittenInstructionsViewController: UIViewController, UITableViewDelegate, UITableViewDataSource {
    
    let appDelegate = UIApplication.shared.delegate as! AppDelegate
    
    
//    var stepBySteps = appDelegate.currentStep
//    var currentStep: Int = 0

    
    func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
        if self.appDelegate.naviStarted == true{
            let stepBySteps = appDelegate.textSteps
            return stepBySteps?.count ?? 0}
        else {
            return 0
        }
        
    }
    
    func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
        let cell = tableView.dequeueReusableCell(withIdentifier: "iCell", for: indexPath)
        let currentStep = appDelegate.currentStep
        let stepBySteps = appDelegate.textSteps
        let focusInstruction = (stepBySteps?[indexPath.row].instructions)!
        let focusDistance = Int((stepBySteps?[indexPath.row].distance)!)
        cell.textLabel?.adjustsFontSizeToFitWidth = true
        if focusInstruction == "" {
            cell.textLabel?.text = "Start, walk for \(focusDistance) meters" }
        else {
            cell.textLabel?.text = "Then in \(focusDistance)m, \(focusInstruction)" }
        if indexPath.row == currentStep {
            cell.backgroundColor = .green
            let txt = (cell.textLabel?.text)!
            cell.accessibilityLabel = "\(txt), current step"
        }
        else {
            cell.accessibilityLabel = cell.textLabel?.text
            cell.backgroundColor = .white
            
        }
        return cell
    }
    
    func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
//        Maybe speak this?
        self.dismiss(animated: true, completion: nil)
    }
    
    
    

    @IBAction func backBtnPressed(_ sender: Any) {
        self.dismiss(animated: true, completion: nil)
    }
    
    @IBOutlet weak var instructionsTable: UITableView!
    @IBOutlet weak var backBtn: UIButton!
    
    override func viewDidLoad() {
        super.viewDidLoad()
        backBtn.accessibilityLabel = "Back"
        if appDelegate.naviStarted == false {
            DispatchQueue.main.asyncAfter(deadline: .now() + 0.2) {
            let alert = UIAlertController(title: "Not Navigating", message: "Please start navigation to see step by step instructions.", preferredStyle: .alert)
            alert.addAction(UIAlertAction(title: "OK", style: .default, handler: { action in
                switch action.style{
                case .default:
                    self.dismiss(animated: true, completion: nil)
                    
                case .cancel:
                    return
                    
                case .destructive:
                    return
                }}))
            self.present(alert, animated: true, completion: nil)
        }
        }
        
        // Do any additional setup after loading the view.
    }
}