class MyTableViewController: UITableViewController {

    var pokemons:[Charact?] = []
    var pokemons_sorted:[Charact?] = []

    var images : [UIImage?] = []
    let MAX_POKEMONS = 50
    var imagesDownload = 0
    var connection = Cone()

    @IBOutlet weak var editButton: UIBarButtonItem!



    override func viewDidLoad() {
        super.viewDidLoad()

        // Uncomment the following line to preserve selection between presentations
        // self.clearsSelectionOnViewWillAppear = false

        // Uncomment the following line to display an Edit button in the navigation bar for this view controller.
        // self.navigationItem.rightBarButtonItem = self.editButtonItem

        title = "Lista"



        pokemons = [Charact?](repeating: nil, count: MAX_POKEMONS)



        images = [UIImage?](repeating: nil, count: MAX_POKEMONS)

        tableView.alpha = 0
        downloadPokemonsInfo()
    }

    // MARK: - Table view data source

    override func numberOfSections(in tableView: UITableView) -> Int {
        // #warning Incomplete implementation, return the number of sections
        return 1
    }

    override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
        // #warning Incomplete implementation, return the number of rows
        return pokemons.count
    }


    override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
        let cell = tableView.dequeueReusableCell(withIdentifier: "myPokemonCell", for: indexPath) as! MyTableViewCell

        // Configure the cell...
        if let pokemon = pokemons[indexPath.row]{
            cell.pokemonLabel.font = UIFont(name: "Pokemon Solid", size: 11)
            cell.pokemonLabel.text = pokemon.name

        }
        if let image = images[indexPath.row]{
            cell.pokemonImage.image = image
        }


        return cell
    }



    // Override to support conditional editing of the table view.
    override func tableView(_ tableView: UITableView, canEditRowAt indexPath: IndexPath) -> Bool {
        // Return false if you do not want the specified item to be editable.
        return true
    }



    // Override to support editing the table view.
    override func tableView(_ tableView: UITableView, commit editingStyle: UITableViewCell.EditingStyle, forRowAt indexPath: IndexPath) {
        if editingStyle == .delete {
            // Delete the row from the data source
            pokemons.remove(at: indexPath.row)
            images.remove(at: indexPath.row)
            tableView.deleteRows(at: [indexPath], with: .fade)
        }
    }



    // Override to support rearranging the table view.
    override func tableView(_ tableView: UITableView, moveRowAt fromIndexPath: IndexPath, to: IndexPath) {

        let pokemonToMove = pokemons[fromIndexPath.row]
        let imageToMove = images[fromIndexPath.row]

        pokemons.remove(at: fromIndexPath.row)
        images.remove(at: fromIndexPath.row)

        pokemons.insert(pokemonToMove, at: to.row)
        images.insert(imageToMove, at: to.row)

    }



    // Override to support conditional rearranging of the table view.
    override func tableView(_ tableView: UITableView, canMoveRowAt indexPath: IndexPath) -> Bool {
        // Return false if you do not want the item to be re-orderable.
        return true
    }


    // MARK: - Navigation

    // In a storyboard-based application, you will often want to do a little preparation before navigation
    override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
        // Get the new view controller using segue.destination.
        // Pass the selected object to the new view controller.
        if segue.identifier == "veADetalleSegue" {
            if let detailVC = segue.destination as? DetailViewController,
               let indexPath = tableView.indexPathForSelectedRow,
               let pokemon = pokemons[indexPath.row],
               let image = images[indexPath.row]{
                detailVC.characImage = image
                detailVC.character = pokemon
            }


            }
        }



    func downloadPokemonsInfo(){
        for i  in 1...MAX_POKEMONS{
            connection.getCharact(withId: i) { charact in
                if let charact = charact, let id = charact.id{
                    self.pokemons[id-1] = charact
                    if let imageURL = charact.sprites?.frontDefault{
                        self.connection.getSprite(withURLString: imageURL) { image in
                            self.imagesDownload = self.imagesDownload + 1
                            if let image = image {
                                self.images[id - 1] = image
                            }
                            if self.imagesDownload == self.MAX_POKEMONS{
                                DispatchQueue.main.async {
                                    self.tableView.reloadData()
                                    self.tableView.alpha = 1
                                }
                            }
                        }
                    }
                }
            }
        }

    }