package de.thdeg.grademanager.gui;

import de.thdeg.grademanager.model.CoursesOfStudy;
import de.thdeg.grademanager.model.enumeration.BachelorDegree;
import de.thdeg.grademanager.model.enumeration.BachelorSemester;
import javafx.collections.FXCollections;
import javafx.collections.ObservableList;
import javafx.event.ActionEvent;
import javafx.fxml.FXML;
import javafx.fxml.FXMLLoader;
import javafx.scene.Node;
import javafx.scene.Scene;
import javafx.scene.control.*;
import javafx.stage.Stage;

import java.io.IOException;
import java.util.Optional;

public class CoursesOfStudyModificationController {
    @FXML
    protected ComboBox<BachelorDegree> bachelorDegreeComboBox;
    @FXML
    protected ComboBox<BachelorSemester> durationComboBox;

    ObservableList<BachelorDegree> bachelorDegreeList = FXCollections.observableArrayList(BachelorDegree.values());
    ObservableList<BachelorSemester> durationList = FXCollections.observableArrayList(BachelorSemester.values());

    @FXML
    protected void initialize() {
        bachelorDegreeComboBox.setItems(bachelorDegreeList);
        durationComboBox.setItems(durationList);
    }


    @FXML
    protected TextField name;
    @FXML
    protected BachelorDegree bachelorDegree;
    @FXML
    protected BachelorSemester duration;
    @FXML
    protected int fees;
    @FXML
    protected TextField courses;
    @FXML
    protected TextField fieldOfStudy;
    @FXML
    protected TextField warning;

    @FXML
    protected void onSaveButtonClick(ActionEvent event) throws IOException {
        if (!name.getText().isBlank() && bachelorDegreeComboBox.getValue() != null &&
                durationComboBox.getValue() != null && !fieldOfStudy.getText().isBlank()) {
            bachelorDegree = bachelorDegreeComboBox.getValue();
            duration = durationComboBox.getValue();
            fees = 62;
            MainController.coursesOfStudyList.add(new CoursesOfStudy(
                    MainController.coursesOfStudyList.size(),
                    name.getText(),
                    bachelorDegree,
                    2,
                    fees,
                    null,
                    fieldOfStudy.getText()));
            SwitchWindowHelper.switchTo("Main", event);
        } else {
            warning.setText("Bitte alle Felder ausfüllen.");
            Alert alert = new Alert(Alert.AlertType.ERROR);
            alert.setTitle("Fehler");
            alert.setHeaderText("Bitte alle Felder ausfüllen.");
            Optional<ButtonType> result = alert.showAndWait();
        }
    }

    @FXML
    protected void abortAndSwitchToMain(ActionEvent event) throws IOException {
        Alert alert = new Alert(Alert.AlertType.CONFIRMATION);
        alert.setTitle("Bestätigung erforderlich");
        alert.setHeaderText("Daten wurden nicht gespeichert. Änderungen verwerfen?");

        ButtonType buttonTypeOne = new ButtonType("Ja");
        ButtonType buttonTypeCancel = new ButtonType("Abbrechen", ButtonBar.ButtonData.CANCEL_CLOSE);

        alert.getButtonTypes().setAll(buttonTypeOne, buttonTypeCancel);

        Optional<ButtonType> result = alert.showAndWait();
        if (result.get() == buttonTypeOne) {
            SwitchWindowHelper.switchTo("Main", event);
        }
    }

    @FXML
    protected void switchToCourseModification(ActionEvent event) throws IOException {
        SwitchWindowHelper.switchTo("Course Modification", event);
    }
}