//
//  HomeViewController.swift
//  AeroBuddy
//
//  Created by Luke Collister on 29/11/2019.
//  Copyright © 2019 Luke Collister. All rights reserved.
//

import UIKit
import SafariServices

class HomeViewController: UIViewController, UICollectionViewDataSource, UICollectionViewDelegate, UICollectionViewDelegateFlowLayout, SFSafariViewControllerDelegate {

    var newsArray = [News]()

    // MARK: - IB
    @IBAction func openURL(_ sender: Any) {
        // Check if website exists
        guard let url = URL(string: "http://www.3lcare.co.uk/aerobuddy") else {
            return
        }

        let safariVC = SFSafariViewController(url: url)
        safariVC.delegate = self
        present(safariVC, animated: true, completion: nil)
    }


    // MARK: - SFSafariViewController
    func safariViewControllerDidFinish(_ controller: SFSafariViewController) {
        controller.dismiss(animated: true, completion: nil)
    }


    // MARK: - UICollectionViewDataSource protocol
    // Pull the data
    func loadNewsData() {
        DispatchQueue.global(qos: .background).async {
            APIHandler.load(endpoint: .News, completion: {(data) in
                // Add news to an array of News
                for news in data {
                    self.newsArray.append(news as! News)
                }
                print(self.newsArray[0].title)
                print(self.newsArray[0].content)
            })
        }
    }

    // MARK: - Default Methods
    override func viewDidLoad() {
        super.viewDidLoad()

        //self.collectionView.delegate = self
        loadNewsData()
    }


    // tell the collection view how many cells to make
    func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
        return self.newsArray.count
    }

    // make a cell for each cell index path
    func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
        // get a reference to our storyboard cell
        let cell = collectionView.dequeueReusableCell(withReuseIdentifier: "cell", for: indexPath as IndexPath) as! HomeCollectionViewCell

        // Use the outlet in our custom class to get a reference to the UILabel in the cell
        cell.cellTitle.text = newsArray[indexPath.item].title
        cell.cellDescription.text = newsArray[indexPath.item].content
        let base64image = newsArray[indexPath.item].cover_image
        let decodedData = NSData(base64Encoded: base64image, options: [])
        if let data = decodedData {
            let decodedimage = UIImage(data: data as Data)
            cell.cellImage.image = decodedimage
        } else {
            print("error with decodedData")
        }
        print("INDEX PATH: ", indexPath.item)

        cell.backgroundColor = UIColor.cyan // make cell more visible in our example project

        return cell
    }

    // MARK: - UICollectionViewDelegate protocol
    func collectionView(_ collectionView: UICollectionView, didSelectItemAt indexPath: IndexPath) {
        // handle tap events
    }
}