//
//  NewsViewController.swift
//  KIPU
//
//  Created by Elvis on 4/21/18.
//  Copyright © 2018 Elvis. All rights reserved.
//

import UIKit

class NewsViewController: BaseViewController {

    @IBOutlet weak var tableView: UITableView!

    var viewModel = NewsViewControllerVM()

    let cellIdentifier = "cellIdentifier"

    override func viewDidLoad() {
        super.viewDidLoad()

        // Do any additional setup after loading the view.
        self.title = "Новости"

        self.tableView.register(NewsCell.className, forCellReuseIdentifier: self.cellIdentifier)
        self.viewModel.requestNews()
        self.tableView.reloadData()
        self.tableView.rowHeight = UITableViewAutomaticDimension
        self.tableView.estimatedRowHeight = 200

        self.navigationItem.rightBarButtonItem = UIBarButtonItem(barButtonSystemItem: .add, target: self, action: #selector(createNews))
    }

    @objc func createNews() {
        let vc = CreateNewsViewController()
        vc.hidesBottomBarWhenPushed = true
        self.navigationController?.pushViewController(vc, animated: true)
    }

}

extension NewsViewController: UITableViewDataSource {
    func numberOfSections(in tableView: UITableView) -> Int {
        return 1
    }

    func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
        return self.viewModel.cellsData.count
    }

    func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
        let cell = tableView.dequeueReusableCell(withIdentifier: self.cellIdentifier, for: indexPath) as! NewsCell
        let viewModel = self.viewModel.cellsData[indexPath.row]
        cell.setup(viewModel)
        return cell
    }
}

extension NewsViewController: UITableViewDelegate {
    func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
        tableView.deselectRow(at: indexPath, animated: true)
        let vm = self.viewModel.cellsData[indexPath.row]
        let vc = NewsDetailsViewController(newsVM: vm)
        vc.hidesBottomBarWhenPushed = true
        self.navigationController?.pushViewController(vc, animated: true)
    }
}