LONDON-IOS/GME Remit/Modules/RemittanceModules/TransactionHistoryModules/MessageCompose/User Interface/View/MessageComposeViewController.swift

//
//  MessageComposeViewController.swift
//  GMERemittance
//
//  Created by gme_2 on 02/10/2018.
//Copyright © 2018 Gobal Money Express Co. Ltd. All rights reserved.
//

import UIKit

class MessageComposeViewController: UIViewController {
  
  struct StringConstants {
    let headerText = "support_description_text".localized()
    let submitText = "submit_text".localized()
    let cancelText = "cancel_text".localized()
    let subjectAmendmentText = "request_for_amendment_text".localized()
    let subjectCancelText = "request_for_cancellation_text".localized()
    let requestMessagePlaceHolderText = "your_request_text".localized()
  }
  
  // MARK: IBOutlets
  
  @IBOutlet weak var headerLabel: UILabel!
  @IBOutlet weak var submitButton: UIButton!
  @IBOutlet weak var cancelButton: UIButton!
  @IBOutlet weak var textFieldSubject: UITextField!
  @IBOutlet weak var textViewMessage: UITextView!
  
  // MARK: Properties
  var type: MailBoxType?
  var controlNO: String?
  var transactionId: String?
  var presenter: MessageComposeModuleInterface?
  
  // MARK: VC's Life cycle
  
  override func viewDidLoad() {
    super.viewDidLoad()
    self.setup()
  }
  
  override func viewWillAppear(_ animated: Bool) {
    super.viewWillAppear(animated)
    self.setupNormalNavigation(color: .themeRedDark)
    self.navigationItem.title = "support_text".localized()
  }
  
  // MARK: IBActions
  
  @IBAction func cancelMessage(_ sender: Any) {
    navigationController?.popViewController(animated: true)
    dismiss(animated: true, completion: nil)
  }
  
  // MARK: Other Functions
  
  private func setup() {
    // all setup should be done here
    self.textViewMessage.text = StringConstants().requestMessagePlaceHolderText
    textViewMessage.textColor = UIColor.themeText
    textViewMessage.layer.borderWidth = 0.3
    textViewMessage.layer.borderColor = UIColor.themeText.cgColor
    textViewMessage.layer.backgroundColor = UIColor.white.cgColor
    textViewMessage.delegate = self
    let barbutton = UIBarButtonItem(
      image: #imageLiteral(resourceName: "backIconBlack"),
      style: .plain,
      target: self,
      action: #selector(self.cancelMessage(_:))
    )
    self.navigationItem.leftBarButtonItem = barbutton
    setupSubject()
    
    configureText()
    
  }
  
  private func configureText() {
    self.headerLabel.text = StringConstants().headerText
    self.submitButton.setTitle(StringConstants().submitText, for: UIControl.State.normal)
    self.cancelButton.setTitle(StringConstants().cancelText, for: UIControl.State.normal)
  }
  
  private func setupSubject() {
    if let type = self.type {
      switch type {
      case .cancel:
        self.textFieldSubject.text = "request_for_cancellation_text".localized()
      case .edit:
        self.textFieldSubject.text = "request_for_amendment_text".localized()
      case .pending:
        self.textFieldSubject.text = "request_for_cancellation_text".localized()
      }
    }
    
    self.textFieldSubject.isUserInteractionEnabled = false
  }
  
  @IBAction func submit(_ sender: UIButton) {
    let subject = self.textFieldSubject.text!
    let body = self.textViewMessage.text ?? ""
    let controlNo = self.controlNO ?? ""
    let transactionId = self.transactionId ?? ""
    
      if body.isEmpty || body == "" || body == "Your request here" {
          self.alert(message: "Remarks is required")
      } else {
          if let type = self.type {
              switch type {
              case .cancel:
                  self.presenter?.cancel(control: controlNo, transId: transactionId, subject: subject, body: body)
              case .edit:
                  self.presenter?.edit(control: controlNo, transId: transactionId, subject: subject, body: body)
              case .pending:
                  self.presenter?.pending(control: controlNo, transId: transactionId, subject: subject, body: body)
              }
          }
      }
  }
  
}

// MARK: MessageComposeViewInterface
extension MessageComposeViewController: MessageComposeViewInterface {
  func show(model: SuccessMessage) {
    self.alert(
      type: .normal,
      message: model.message,
      title: "success_text".localized()
    ) {
      self.presenter?.dismiss()
    }
  }
  
  func show(error: String) {
    self.alert(type: .error, message: error)
  }
}

extension MessageComposeViewController: UITextViewDelegate {
  func textViewDidBeginEditing(_ textView: UITextView) {
    if textView.textColor == UIColor.themeText {
      textView.text = nil
      textView.textColor = UIColor.init(hex: "#4a4a4a")
    }
  }
  
  func textViewDidEndEditing(_ textView: UITextView) {
    if textViewMessage.text.isEmpty {
      textViewMessage.text = "your_request_text".localized()
      textViewMessage.textColor = UIColor.themeText
    }
  }
}