class SearchViewController: UIViewController {
    @IBOutlet weak var searchBar: UISearchBar!
    var isFiltering: Bool = false

    var arr = ["zehye", "hi", "hello", "nice", "to", "meet", "you"]
    var filterredArr: [String] = []

    override func viewDidLoad() {
        super.viewDidLoad()
        
        self.initUI()
        self.setSearchControllerUI()
    }

    func initUI() {
        self.tableView.delegate = self
        self.tableView.dataSource = self
    }

    func setSearchControllerUI() {
        self.searchBar.delegate = self
        self.searchBar.showsCancelButton = false
    }
}

extension SearchViewController: UITableViewDelegate, UITableViewDataSource {
    public func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
        return self.isFilterting ? self.filterredArr.count : self.arr.count
    }

    public func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
        let cell = tableView.dequeueReusableCell(withIdentifier: "SeachListCell") as! SearchListTableViewCell
        if self.isFiltering {
            cell.textLabel?.text = self.filterredArr[indexPath.row]
        } else {
            cell.textLabel?.text = self.arr[indexPath.row]
        }

        return cell
    }
}

extension SearchViewController: UISearchBarDelegate {
    // 서치바에서 검색을 시작할 때 호출 
    func searchBarTextDidBeginEditing(_ searchBar: UISearchBar) {
        self.isFiltering = true
        self.searchBar.showsCancelButton = true
        self.tableView.reloadData()
    }
    
    func searchBar(_ searchBar: UISearchBar, textDidChange searchText: String) {
        guard let text = searchController.searchBar.text?.lowercased() else { return }
        self.filterredArr = self.arr.filter { $0.localizedCaseInsensitiveContains(text) }
       
        self.tableView.reloadData()
    }
    
    // 서치바에서 검색버튼을 눌렀을 때 호출 
    func searchBarSearchButtonClicked(_ searchBar: UISearchBar) {
        dismissKeyboard()

        guard let text = searchController.searchBar.text?.lowercased() else { return }
        self.filterredArr = self.arr.filter { $0.localizedCaseInsensitiveContains(text) }
       
        self.tableView.reloadData()
    }
    
    // 서치바에서 취소 버튼을 눌렀을 때 호출 
    func searchBarCancelButtonClicked(_ searchBar: UISearchBar) {
        self.searchBar.text = ""
        self.searchBar.resignFirstResponder()
        self.isFiltering = false
        self.tableView.reloadData()
    }
    
    // 서치바 검색이 끝났을 때 호출
    func searchBarTextDidEndEditing(_ searchBar: UISearchBar) {
        self.tableView.reloadData()
    }
    
    // 서치바 키보드 내리기 
    func dismissKeyboard() {
        searchBar.resignFirstResponder()
    }
}

class SearchViewController: UIViewController {
    var foodList: [FoodModel] = []
}

class SearchViewController: UIViewController {
    var foodList: [FoodModel] = []

    override func viewDidLoad() {
        super.viewDidLoad()

        self.loadCalorieFromCSV()
    }

    private func parseCSVAt(url: URL) {
        do {
            // url을 받은 data
            let data = try Data(contentsOf: url)
            // 해당 data를 encoding 합니다.
            let dataEncoded = String(data: data, encoding: .utf8)
            // ,로 구분해 만든 리스트를 제가 만들어 놓은 foodList에 담아줍니다. (FoodModel이라는 model에 맞게)
            if let dataArr = dataEncoded?.components(separatedBy: "\n").map({$0.components(separatedBy: ",")}) {
                self.foodList = dataArr.compactMap({ FoodModel(value: $0) })
            }
        } catch {
            print("Error reading CSV file")
        }
    }
    
    private func loadCalorieFromCSV() {
        // bundle에 있는 경로 > Calorie라는 이름을 가진 csv 파일 경로 
        let path = Bundle.main.path(forResource: "Calorie", ofType: "csv")!
        parseCSVAt(url: URL(fileURLWithPath: path))

        self.tableView.reloadData()
    }
}

@IBOutlet weak var collectionView: UICollectionView!

func initUI() {
        self.collectionView.delegate = self
        self.collectionView.dataSource = self
        let layout = UICollectionViewFlowLayout()
        layout.estimatedItemSize = UICollectionViewFlowLayout.automaticSize
        self.collectionView.collectionViewLayout = layout
}

class DataTableViewCell: UITableViewCell {
  @IBOutlet weak var collectionView: UICollectionView!

  let list = ["밥", "된장찌개", "계란말이", "교촌허니콤보", "떡볶이"]
  let calList = ["12kCal", "365kCal", "1234kCal", "135kCal", "567kCal"]

  override func awakeFromNib() {
        super.awakeFromNib()
        initUI()
  }

  func initUI() {
    self.collectionView.register(UINib(nibName: "CalorieCollectionViewCell", bundle: nil), forCellWithReuseIdentifier: "CalorieCell")
  }
}

extension DataTableViewCell: UICollectionViewDelegateFlowLayout {
    func collectionView(_ collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, sizeForItemAt indexPath: IndexPath) -> CGSize {
        let name = self.list[indexPath.row]
        let cal = self.calList[indexPath.row]

        let attributes = [NSAttributedString.Key.font: UIFont.systemFont(ofSize: 14)]

        let nameSize = (name as NSString).size(withAttributes: attributes as [NSAttributedString.Key: Any])
        let calSize = (cal as NSString).size(withAttributes: attributes as [NSAttributedString.Key: Any])
        return CGSize(width: (nameSize.width + calSize.width) + 20, height: 35)
    }
}

let vc = mainVC.instance()
vc.hideBottomBarWhenPushed = true
self.navigationController?.pushViewController(vc, animated: true)

override func layoutSubviews() {
  super.layoutSubviews()
  contentView.frame = contentView.frame.inset(by: UIEdgeInsets(top: 0, left: 0, bottom: 0, right: 0))
}