package de.fhswf.in.inf.se.notepadMinusMinus.view;

import java.io.File;
import java.math.BigDecimal;

import de.fhswf.in.inf.se.notepadMinusMinus.Main;
import de.fhswf.in.inf.se.notepadMinusMinus.model.Grade;
import javafx.application.Platform;
import javafx.fxml.FXML;
import javafx.scene.control.Button;
import javafx.scene.control.ComboBox;
import javafx.scene.control.Label;
import javafx.scene.control.TableColumn;
import javafx.scene.control.TableView;
import javafx.scene.control.cell.ComboBoxTableCell;
import javafx.scene.control.cell.TextFieldTableCell;
import javafx.stage.FileChooser;
import javafx.util.converter.IntegerStringConverter;

public class MainViewController
{
   @FXML
   private TableView<Grade> gradeTable;

   @FXML
   private TableColumn<Grade, Integer> semesterColumn;

   @FXML
   private TableColumn<Grade, String> modulenameColumn;

   @FXML
   private TableColumn<Grade, Integer> ectsColumn;

   @FXML
   private TableColumn<Grade, BigDecimal> gradeColumn;

   @FXML
   private TableColumn<Grade, Integer> attemptColumn;

   @FXML
   private Label ectsSumLabel;

   @FXML
   private Label averageNoteLabel;

   @FXML
   private Button deleteButton;

   @FXML
   private ComboBox<Double> colloquiumComboBox;

   @FXML
   private ComboBox<Double> thesisComboBox;

   private Main main;

   @FXML
   private void initialize()
   {
      semesterColumn.setCellValueFactory(
            cellData -> cellData.getValue().semesterProperty().asObject());
      semesterColumn.setCellFactory(
            TextFieldTableCell.forTableColumn(new IntegerStringConverter()));
      semesterColumn.setOnEditCommit(data -> {
         data.getRowValue().setSemester(data.getNewValue());
      });

      modulenameColumn.setCellValueFactory(
            cellData -> cellData.getValue().modulenameProperty());
      modulenameColumn.setCellFactory(TextFieldTableCell.forTableColumn());
      modulenameColumn.setOnEditCommit(data -> {
         data.getRowValue().setModulename(data.getNewValue());
      });

      ectsColumn.setCellValueFactory(
            cellData -> cellData.getValue().ectsProperty().asObject());
      ectsColumn.setCellFactory(
            TextFieldTableCell.forTableColumn(new IntegerStringConverter()));
      ectsColumn.setOnEditCommit(data -> {
         data.getRowValue().setEcts(data.getNewValue());
      });

      gradeColumn.setCellValueFactory(
            cellData -> cellData.getValue().gradeProperty());
      gradeColumn.setCellFactory(
            ComboBoxTableCell.forTableColumn(Grade.gradeValuesProperty()));
      gradeColumn.setOnEditCommit(data -> {
         data.getRowValue().setGrade(data.getNewValue());
      });

      attemptColumn.setCellValueFactory(
            cellData -> cellData.getValue().attemptProperty().asObject());
      attemptColumn.setCellFactory(
            TextFieldTableCell.forTableColumn(new IntegerStringConverter()));
      attemptColumn.setOnEditCommit(data -> {
         data.getRowValue().setAttempt(data.getNewValue());
      });

      deleteButton.disableProperty().bind(gradeTable.getSelectionModel()
            .selectedIndexProperty().lessThan(0));
   }

   public void setMain(Main main)
   {
      this.main = main;
      gradeTable.setItems(main.getGradeList());
   }

   @FXML
   private void handleNewValue()
   {
      Grade grade = new Grade();
      gradeTable.getItems().add(grade);
   }

   @FXML
   private void handleDeleteValue()
   {
      Grade delete = gradeTable.getSelectionModel().getSelectedItem();

      if (delete != null)
      {
         gradeTable.getItems().remove(delete);
      }
   }

   @FXML
   private void handleNew()
   {
      if (main != null)
      {
         gradeTable.getItems().clear();
         main.setOpenFile(null);
      }
   }

   @FXML
   private void handleOpen()
   {
      FileChooser fileChooser = new FileChooser();

      // Set extension filter
      FileChooser.ExtensionFilter extFilter = new FileChooser.ExtensionFilter(
            "XML files (*.xml)", "*.xml");
      fileChooser.getExtensionFilters().add(extFilter);

      // Set initial Directory to a good value
      if (main != null && main.getGradesFilePath() != null)
      {
         fileChooser
               .setInitialDirectory(main.getGradesFilePath().getParentFile());
      }
      else
      {
         String userDirectoryString = System.getProperty("user.home");
         File userDirectory = new File(userDirectoryString);
         fileChooser.setInitialDirectory(userDirectory);
      }

      // Show save file dialog
      File file = fileChooser.showOpenDialog(main.getPrimaryStage());

      if (file != null)
      {
         main.loadGradesFromFile(file);
      }
   }

   @FXML
   private void handleSave()
   {
      if (main.getOpenFile() == null)
      {
         handleSaveAs();
      }
      else
      {
         if (main != null)
         {
            main.saveGradesToFile(main.getOpenFile());
         }
      }
   }

   @FXML
   private void handleSaveAs()
   {
      FileChooser fileChooser = new FileChooser();

      // Only show XML files.
      FileChooser.ExtensionFilter extFilter = new FileChooser.ExtensionFilter(
            "XML files (*.xml)", "*.xml");
      fileChooser.getExtensionFilters().add(extFilter);

      // Set initial Directory to a good value
      if (main != null && main.getGradesFilePath() != null)
      {
         fileChooser
               .setInitialDirectory(main.getGradesFilePath().getParentFile());
      }
      else
      {
         String userDirectoryString = System.getProperty("user.home");
         File userDirectory = new File(userDirectoryString);
         fileChooser.setInitialDirectory(userDirectory);
      }

      File file = fileChooser.showSaveDialog(main.getPrimaryStage());

      if (file != null)
      {
         // Set the correct file ending
         if (!file.getPath().endsWith(".xml"))
         {
            file = new File(file.getPath() + ".xml");
         }
         main.saveGradesToFile(file);
      }
   }

   @FXML
   private void handleExit()
   {
      Platform.exit();
   }
}