//
//  NotificationHistoryViewController.swift
//  GME Remit
//
//  Created by InKwon James Kim on 2020/02/11.
//Copyright © 2020 Gobal Money Express Co. Ltd. All rights reserved.
//

import UIKit
import RxSwift
import RxCocoa

class NotificationHistoryViewController: UIViewController {
  
  // MARK: Properties
  var presenter: NotificationHistoryPresenter!
  
  private let disposeBag = DisposeBag()
  // MARK: Computed Properties
  
  // MARK: IBOutlets
  @IBOutlet private weak var tableView: UITableView!
  @IBOutlet private weak var noticeErrorLabel: UILabel!
  @IBOutlet private weak var closeButton: UIBarButtonItem!
  
  // MARK: VC's Life cycle
  override func viewDidLoad() {
    super.viewDidLoad()
    setup()
  }
  
  override func viewWillAppear(_ animated: Bool) {
    super.viewWillAppear(animated)
    setupNormalNavigation()
    title = "Notice"
    
    if self.presentingViewController == nil {
      self.navigationItem.leftBarButtonItem = nil
    }
  }
  
  override func viewWillDisappear(_ animated: Bool) {
    super.viewWillDisappear(animated)
    title = ""
  }
  
  // MARK: IBActions
  
}

// MARK: Other Functions
extension NotificationHistoryViewController {
  
  private func setup() {
    setUI()
    setBinding()
    setUIBinding()
  }
  
  private func setUI() {
    
  }
  
  private func setUIBinding() {
    closeButton.rx.tap.bind {[weak self] in
      self?.dismiss(animated: true)
    }.disposed(by: disposeBag)
  }
  
  private func setBinding() {
    let viewWillAppear = rx.sentMessage(#selector(UIViewController.viewWillAppear(_:)))
      .mapToVoid().asDriverOnErrorJustComplete()
    
    let input = NotificationHistoryPresenter.Input(
      viewWillAppear: viewWillAppear,
      selectNoticeIndex: tableView.rx.itemSelected.map {$0.row}.asDriverOnErrorJustComplete()
    )
    
    let output = presenter.transform(input: input)
    
    output.isError
      .drive(
        onNext: { self.alert(type: .error, message: $0.localizedDescription) }
    ).disposed(by: disposeBag)
    
    output.isProgress
      .drive(
        onNext: { $0 ? self.showProgressHud() : self.hideProgressHud() }
    ).disposed(by: disposeBag)
    
    output
      .models.drive(
        tableView.rx.items(cellIdentifier: "NotificationCell")
      ) { (_, element: NoticeModel, cell: NotificationCell) in
        cell.setModel(element)
    }
    .disposed(by: disposeBag)
    
    output.models.map {$0.count != 0}.drive(noticeErrorLabel.rx.isHidden).disposed(by: disposeBag)
    
    tableView.rx.setDelegate(self).disposed(by: disposeBag)
  }
}

extension NotificationHistoryViewController: UITableViewDelegate {
  func tableView(_ tableView: UITableView, heightForRowAt indexPath: IndexPath) -> CGFloat {
    return 90
  }
}