elpha-ios/elpha-ios/InstanceViewController.swift

//
//  InstanceViewController.swift
//  elpha-ios
//
//  Created by Dwayne Harris on 9/17/18.
//  Copyright © 2018 Elpha. All rights reserved.
//

import AlamofireImage
import UIKit
import SafariServices

class InstanceViewController: UIViewController, SFSafariViewControllerDelegate {
    @IBOutlet var thumbnailImageView: UIImageView!
    @IBOutlet var instanceDescriptionLabel: UILabel!
    @IBOutlet var webViewButton: UIButton!
    @IBOutlet var usersLabel: UILabel!
    @IBOutlet var statusesLabel: UILabel!
    @IBOutlet var connectionsLabel: UILabel!
    @IBOutlet var uptimeLabel: UILabel!
    
    var instance: ISInstanceMO? = nil
    
    override var previewActionItems: [UIPreviewActionItem] {
        let action = UIPreviewAction(title: "Go to website", style: .default) { action, viewController in
            self.presentSafariViewController()
        }
        
        return [action]
    }
    
    @IBAction func goToWebsite(_ sender: Any) {
        presentSafariViewController()
    }
    
    @objc func presentSafariViewController() {
        guard let instance = instance, let url = instance.url else {
            return
        }
        
        let safariViewController = SFSafariViewController(url: url)
        safariViewController.delegate = self
        
        present(safariViewController, animated: true)
    }
    
    override func viewDidLoad() {
        super.viewDidLoad()
        
        webViewButton.layer.cornerRadius = 15
        
        if let instance = instance, let name = instance.name {
            navigationItem.title = name
        }
        
        navigationItem.rightBarButtonItem = UIBarButtonItem(image: UIImage(named: "Globe"), style: .plain, target: self, action: #selector(presentSafariViewController))
    }
    
    override func viewWillAppear(_ animated: Bool) {
        super.viewWillAppear(animated)
        
        guard let instance = self.instance else {
            fatalError("No instance")
        }
        
        if (instance.fullDescription ?? "").isEmpty {
            instanceDescriptionLabel.text = "(No description)"
        } else {
            instanceDescriptionLabel.text = instance.fullDescription
        }
        
        usersLabel.text = NumberFormatter.localizedString(from: NSNumber(value: instance.users), number: .decimal)
        statusesLabel.text = NumberFormatter.localizedString(from: NSNumber(value: instance.statuses), number: .decimal)
        connectionsLabel.text = NumberFormatter.localizedString(from: NSNumber(value: instance.connections), number: .decimal)
        uptimeLabel.text = String(instance.uptime)
        
        if let thumbnail = instance.thumbnail {
            thumbnailImageView.af_setImage(withURL: thumbnail)
        }
    }
}