//
// ViewController.swift
// Assessment2
//
// Created by Obioku Bassey Obotette on 4/19/19.
// Copyright © 2019 Obioku Bassey Obotette. All rights reserved.
//
import UIKit
import AVKit
import WebKit
import SafariServices
import Kingfisher
//object to collect data from api call
struct SearchData {
var id: [Int]?
var vidpic: [String]?
var highpic: UIImage?
var titleLabel: [String]?
var description: [String]?
var count: [String]?
var channel: [String]?
var vidURL: [String]?
//init as empty to prevent "nil"
init() {
self.id = [0]
self.vidpic = [""]
self.highpic = UIImage.init()
self.titleLabel = [""]
self.description = [""]
self.count = [""]
self.channel = [""]
self.vidURL = [""]
}
}
//test prototype cell
//class LabelCell2: UITableViewCell{
//
// @IBOutlet weak var secText: UITextView!
// @IBOutlet weak var secChan: UILabel!
// @IBOutlet weak var secVid: UIView!
// @IBOutlet weak var secDate: UILabel!
// @IBOutlet weak var secBtn: UIButton!
// @IBOutlet weak var secUrl: UILabel!
//
//
//}
class ViewController: UIViewController ,UITableViewDelegate, UITableViewDataSource, UISearchBarDelegate, SFSafariViewControllerDelegate{//}, UIViewControllerPreviewingDelegate {
// func previewingContext(_ previewingContext: UIViewControllerPreviewing, viewControllerForLocation location: CGPoint) -> UIViewController? {
// guard let select = view1.indexPathForRow(at: location), let cell = view1.cellForRow(at: select) else {
// return nil
// }
//
// //let testVC = storyboard?.instantiateInitialViewController() as! SFSafariViewController
// //testVC.delegate = self
//
// //let vc = SFSafariViewController.init(url: URL.init(string: (parsed.vidURL?[select.section])!)!)
// let vc = storyboard?.instantiateViewController(withIdentifier: "vidPlayer") as! VideoController
// vc.delegate = self
// vc.preferredContentSize = CGSize.init(width: 100, height: 200)
// previewingContext.sourceRect = cell.frame
// return vc
//
// }
//
// func previewingContext(_ previewingContext: UIViewControllerPreviewing, commit viewControllerToCommit: UIViewController) {
//// let navVC = UINavigationController.init(rootViewController: viewControllerToCommit)
//// viewControllerToCommit.present(navVC, animated: true)
// navigationController?.show(viewControllerToCommit, sender: self)
// }
//
// func seeViewController(_ controller: UIViewController, didSelect action: UIPreviewAction,for previewedController: UIViewController){
//
// }
//declare variables
var parsed = SearchData()
var maxResults: Int!
var load = 0
//view outlets
@IBOutlet weak var search: UISearchBar!
@IBOutlet weak var view1: UITableView!
@IBOutlet weak var segControl: UISegmentedControl!
override func viewDidLoad() {
super.viewDidLoad()
//assign delegates, datasource and register cell
self.view1.dataSource = self
self.view1.delegate = self
self.view1.register(UITableViewCell.self, forCellReuseIdentifier: "custom")
self.search.delegate = self
//self.view1.rowHeight = 172
self.search.placeholder = "Search YouTube"
self.search.tintColor = UIColor.red
self.segControl.tintColor = UIColor.red
self.load = 0
// if traitCollection.forceTouchCapability == .available {
// registerForPreviewing(with: self, sourceView: self.view)
// }
}
func searchBarSearchButtonClicked(_ searchBar: UISearchBar) {
//if text blank display alert
if searchBar.text == nil || searchBar.text == "" {
let alert = UIAlertController.init(title: "Search Text is Blank", message: "Please Enter Value", preferredStyle: .alert)
alert.addAction(UIAlertAction.init(title: "Re-enter", style: .default))
self.present(alert, animated: true)
}else{
//clear object with each call
parsed = SearchData()
//url components
var urlString = ""
let string = "https://www.googleapis.com/youtube/v3"
let entered = searchBar.text?.replacingOccurrences(of: " ", with: "+")
let key = "api key"
//let key = "api key"
//segment for result amount
switch segControl.selectedSegmentIndex {
case 0: maxResults = 10
case 1: maxResults = 25
case 2: maxResults = 50
default: maxResults = 5
}
//segment for videos or channels
switch searchBar.selectedScopeButtonIndex {
case 0: urlString = "\(string)/search?part=snippet&maxResults=\(maxResults ?? 5)&q=\(entered!)&type=video&videoCaption=closedCaption&key=\(key)"
case 1: urlString = "\(string)/search?part=snippet&maxResults=\(maxResults ?? 5)&q=\(entered!)&type=channel&key=\(key)"
default: urlString = "\(string)/activities?part=snippet,contentDetails&home=true"
}
let url = URL.init(string: urlString)
//begin json parsing
do{
let data = try Data.init(contentsOf: url!)
let json = try JSONSerialization.jsonObject(with: data, options: .mutableContainers) as! [String: Any]
//array of dictionaries
let items = json["items"] as! Array<[String: Any]>
//parse each index
for x in 0 ..< maxResults {
let id = items[x]["id"] as! [String: Any]
var vidId = ""
//determine video or channel listing and assign url
if searchBar.selectedScopeButtonIndex == 0 {
vidId = id["videoId"] as! String
parsed.vidURL?.insert("https://www.youtube.com/watch?v=\(vidId)", at: x)
}
if searchBar.selectedScopeButtonIndex == 1 {
vidId = id["channelId"] as! String
parsed.vidURL?.insert("https://www.youtube.com/channel/\(vidId)", at: x)
}
//collect index id, channel, date, title, description and picture
parsed.id?.insert(x, at: x)
let snippet = items[x]["snippet"] as! [String: Any]
parsed.channel?.insert(snippet["channelTitle"] as! String, at: x)
parsed.count?.insert(snippet["publishedAt"] as! String, at: x)
parsed.titleLabel?.insert(snippet["title"] as! String, at: x)
parsed.description?.insert(snippet["description"] as! String, at: x)
let thumb = snippet["thumbnails"] as! [String: Any]
let image = thumb["high"] as! [String: Any]
let link = image["url"] as! String
parsed.vidpic?.insert(link, at: x)
//print(thumb)
}
}catch {
print("Errors from site retrieval")
}
//reload table on main thread
DispatchQueue.main.async {
self.view1.reloadData()
self.view1.scrollToRow(at: IndexPath.init(row: 0, section: 0), at: .top, animated: true)
//self.view1.reloadData()
}
}
}
//add title as section header
func tableView(_ tableView: UITableView, titleForHeaderInSection section: Int) -> String? {
//make video title section header
if parsed.count?.count == 0{
return "Video Titles"
}else{
return parsed.titleLabel?[section].replacingOccurrences(of: "'", with:
"\'").replacingOccurrences(of: """, with: "\"").replacingOccurrences(of: "&", with: "&")
}
}
//table conformance functions
func numberOfSections(in tableView: UITableView) -> Int {
//search results as number of section
if parsed.count?.count == 0{
return 0
}else{
return parsed.count!.count
}
}
//when view loads show 1 cell else show the amount requested
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
//one cell per return
if parsed.count?.count == 0{
return 0
}else{
return 1
}
}
//fixed height for cell
func tableView(_ tableView: UITableView, heightForRowAt indexPath: IndexPath) -> CGFloat {
return 172.0
}
//add thumbnail and text to each cell for return results
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: "plain", for: indexPath)
//load image on the main thread
//let ic = ImageCache.init(name: "pic")
var pic = try! ImageCache.init(name: "thumb", cacheDirectoryURL: URL(string: (self.parsed.vidpic?[indexPath.section])!))
if let savedPic = pic.retrieveImageInMemoryCache(forKey: (self.parsed.vidpic?[indexPath.section])!){
cell.imageView?.image
}else {
let test = DispatchQueue.init(label: "gcd", qos: .background, attributes: .concurrent, autoreleaseFrequency: .inherit, target: .global())
test.async {
if let url = URL.init(string: (self.parsed.vidpic?[indexPath.section])!){
let data = try! Data(contentsOf: url)
DispatchQueue.main.async {
cell.imageView?.image = UIImage(data: data)
if self.load == 0{
self.view1.reloadData()
self.load = 1
}
}
}
}
}
//remove error ascii conversions from string
cell.textLabel?.text = parsed.channel?[indexPath.section].replacingOccurrences(of: "'", with:
"\'").replacingOccurrences(of: """, with: "\"").replacingOccurrences(of: "&", with: "&")
cell.textLabel?.lineBreakMode = NSLineBreakMode.byWordWrapping
cell.detailTextLabel?.text = parsed.count?[indexPath.section].replacingOccurrences(of: "'", with:
"\'").replacingOccurrences(of: """, with: "\"").replacingOccurrences(of: "&", with: "&")
cell.detailTextLabel?.lineBreakMode = NSLineBreakMode.byWordWrapping
cell.layer.borderWidth = 3.0
cell.layer.borderColor = UIColor.black.cgColor
return cell
}
//display link when cell is selected
func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
//open video in safari for row selected
//let seen = UIApplication.shared.keyWindow
if let url = URL.init(string: (parsed.vidURL?[indexPath.section])!){
let vc = SFSafariViewController.init(url: url)
vc.delegate = self
vc.preferredContentSize = CGSize.init(width: 100, height: 200)
vc.modalTransitionStyle = .crossDissolve
//UIView.animate(withDuration: 1.5) {
//vc.view.frame = self.view.bounds
self.present(vc, animated: true)
//}
}
}
func saveImage(_ image: URL) -> UIImage{
var pic = UIImage()
URLSession.shared.dataTask(with: image) { (data, response, error) in
DispatchQueue.main.async {
pic = UIImage.init(data: data!) ?? UIImage.init(named: "exe")!
}
}.resume()
return pic
}
}
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