/// Copyright (c) 2019 Razeware LLC
///
/// Permission is hereby granted, free of charge, to any person obtaining a copy
/// of this software and associated documentation files (the "Software"), to deal
/// in the Software without restriction, including without limitation the rights
/// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
/// copies of the Software, and to permit persons to whom the Software is
/// furnished to do so, subject to the following conditions:
///
/// The above copyright notice and this permission notice shall be included in
/// all copies or substantial portions of the Software.
///
/// Notwithstanding the foregoing, you may not use, copy, modify, merge, publish,
/// distribute, sublicense, create a derivative work, and/or sell copies of the
/// Software in any work that is designed, intended, or marketed for pedagogical or
/// instructional purposes related to programming, coding, application development,
/// or information technology.  Permission for such use, copying, modification,
/// merger, publication, distribution, sublicensing, creation of derivative works,
/// or sale is expressly withheld.
///
/// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
/// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
/// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
/// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
/// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
/// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
/// THE SOFTWARE.

import UIKit
import Combine

class StoriesTableViewController: UITableViewController {
  var stories = [Story]() {
    didSet {
      tableView.reloadData()
    }
  }
  
  private let api = API()
  private var subscriptions = [AnyCancellable]()
  
  override func viewDidAppear(_ animated: Bool) {
    super.viewDidAppear(animated)
    
    api.stories()
      .receive(on: DispatchQueue.main)
      .catch { _ in Empty() }
      .assign(to: \.stories, on: self)
      .store(in: &subscriptions)
  }
  
  // MARK: - Table view data source
  
  override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
    return stories.count
  }
  
  override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
    let cell = tableView.dequeueReusableCell(withIdentifier: "Cell", for: indexPath)
    let story = stories[indexPath.row]
    
    cell.textLabel!.text = story.title
    cell.textLabel!.textColor = UIColor.orange
    cell.detailTextLabel!.text = "By \(story.by)"
    
    return cell
  }
}
