package application.controller

  import application.model.MapState.*

  import application.model.createVesselCollection

  import application.model.observableIsReplayState

  import application.model.observableMapState

  import application.model.observableVessel

  import javafx.event.EventHandler
  import javafx.fxml.FXML

  import javafx.fxml.Initializable

  import javafx.scene.control.*

  import javafx.stage.FileChooser

  import java.io.*

  import java.net.URL
  import java.util.*

  class MenuBarController : Initializable {
  
      @FXML
      var menuBar: MenuBar = MenuBar()
  
      @FXML
      var import: MenuItem = MenuItem()

      @FXML
      var allMessages: CheckMenuItem = CheckMenuItem()
  
      @FXML
      var clusteredMessage: CheckMenuItem = CheckMenuItem()
  
      @FXML
      var heatMap: CheckMenuItem = CheckMenuItem()

      @FXML

      var activateTimeSliderButton: RadioMenuItem = RadioMenuItem()

      override fun initialize(location: URL?, resources: ResourceBundle?) {

          setOnActionImportButton()
  
          setOnActionAllMessageButton()
          setOnActionClusteredMessageButton()
          setOnActionHeatMapButton()

          setOnActionActivateReplayButton()

          observableMapState.state = CLUSTERED_MESSAGES

          allMessages.isSelected = false

          clusteredMessage.isSelected = true

          heatMap.isSelected = false

  
      }

      private fun setOnActionActivateReplayButton() {

          activateTimeSliderButton.onAction = EventHandler {
              observableIsReplayState.value = activateTimeSliderButton.isSelected

          }
      }

      private fun setOnActionImportButton() {

          import.onAction = EventHandler {
              val fileChooser = FileChooser()
              fileChooser.title = "Choose a file to import"
              val window = menuBar.scene.window
              val file = fileChooser.showOpenDialog(window)

              try {

                  if (file.extension != "csv") {
                      val alert = Alert(Alert.AlertType.WARNING)
                      alert.title = "Warning Alert"
                      alert.headerText = "Wrong file format."
                      alert.contentText = "Please choose à .csv file."
                      alert.showAndWait()
                  }

                  observableVessel.vessels.clear()

                  if(toMuchVessel(file)){
                      observableVessel.vessels = mutableMapOf()
                  }else {
                      val vessels = createVesselCollection(file)
                      observableVessel.vessels = vessels
                  }

              } catch (ignore: IllegalStateException) {

  
              }

          }
      }

      private fun toMuchVessel(file: File): Boolean {
          val nbLine = file.readLines().size
          if (nbLine > 50000) {
              val alert = Alert(Alert.AlertType.CONFIRMATION)
              alert.title = "Warning!!"
              alert.headerText = "Warning: This file contain a lot of messages."
              alert.contentText = "Are you sure you want to continue."
              val buttonTypeYes = ButtonType("Yes")
              val buttonTypeNo = ButtonType("No ")
              alert.buttonTypes.setAll(buttonTypeYes, buttonTypeNo)
              val result = alert.showAndWait()
  
              return result.get() != buttonTypeYes
          }
          return false
      }

      private fun setOnActionAllMessageButton() {
          allMessages.onAction = EventHandler {

              observableMapState.state = ALL_MESSAGES

              allMessages.isSelected = true
              clusteredMessage.isSelected = false
              heatMap.isSelected = false
          }
      }
  
      private fun setOnActionClusteredMessageButton() {
          clusteredMessage.onAction = EventHandler {

              observableMapState.state = CLUSTERED_MESSAGES

              heatMap.isSelected = false
              allMessages.isSelected = false
              clusteredMessage.isSelected = true
          }
      }
  
      private fun setOnActionHeatMapButton() {
          heatMap.onAction = EventHandler {

              observableMapState.state = HEAT_MAP

              heatMap.isSelected = true
              clusteredMessage.isSelected = false
              allMessages.isSelected = false
          }
      }

  }