/*
 * Just copy and paste the code.
 */
package editabletableview;

import java.time.LocalDate;
import java.time.ZoneId;
import java.time.format.DateTimeFormatter;
import java.time.format.FormatStyle;
import java.util.Date;
import java.util.List;
import javafx.application.Application;
import javafx.beans.property.BooleanProperty;
import javafx.beans.property.ObjectProperty;
import javafx.beans.property.SimpleListProperty;
import javafx.beans.property.SimpleObjectProperty;
import javafx.beans.property.SimpleStringProperty;
import javafx.beans.property.StringProperty;
import javafx.beans.value.ObservableValue;
import javafx.collections.FXCollections;
import javafx.collections.ObservableList;
import javafx.event.ActionEvent;
import javafx.geometry.Insets;
import javafx.scene.Group;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.scene.control.CheckBox;
import javafx.scene.control.ComboBox;
import javafx.scene.control.DatePicker;
import javafx.scene.control.Label;
import javafx.scene.control.ListCell;
import javafx.scene.control.TableCell;
import javafx.scene.control.TableColumn;
import javafx.scene.control.TableView;
import javafx.scene.control.TextField;
import javafx.scene.layout.HBox;
import javafx.scene.layout.VBox;
import javafx.scene.text.Font;
import javafx.stage.Stage;
import javafx.util.Callback;

/**
 *
 * @author Hasan Selman Kara
 */
public class Main extends Application {

    private TableView<Person> table = new TableView<>();
    private final ObservableList<Typ> typData
            = FXCollections.observableArrayList(
                    new Typ("Hund"),
                    new Typ("Fuchs"),
                    new Typ("Esel"));
    private final ObservableList<Person> data
            = FXCollections.observableArrayList(
                    new Person("Jacob", typData.get(0), new Date()),
                    new Person("Urs", typData.get(1), new Date()),
                    new Person("Hans", typData.get(2), new Date()),
                    new Person("Ueli", typData.get(2), new Date()));

    final HBox hb = new HBox();

    @Override
    public void start(Stage stage) {
        Scene scene = new Scene(new Group());
        stage.setWidth(550);
        stage.setHeight(550);

        final Label label = new Label("Address Book");
        label.setFont(new Font("Arial", 20));

        table.setEditable(true);
        Callback<TableColumn<Person, String>, TableCell<Person, String>> cellFactory
                = (TableColumn<Person, String> param) -> new EditingCell();
        Callback<TableColumn<Person, Date>, TableCell<Person, Date>> dateCellFactory
                = (TableColumn<Person, Date> param) -> new DateEditingCell();
        Callback<TableColumn<Person, Typ>, TableCell<Person, Typ>> comboBoxCellFactory
                = (TableColumn<Person, Typ> param) -> new ComboBoxEditingCell();

        TableColumn<Person, String> firstNameCol = new TableColumn("Vorname");
        firstNameCol.setMinWidth(100);
        firstNameCol.setCellValueFactory(cellData -> cellData.getValue().firstNameProperty());
        firstNameCol.setCellFactory(cellFactory);
        firstNameCol.setOnEditCommit(
                (TableColumn.CellEditEvent<Person, String> t) -> {
                    ((Person) t.getTableView().getItems()
                    .get(t.getTablePosition().getRow()))
                    .setFirstName(t.getNewValue());

                });
        
        TableColumn<Person, Typ> lastNameCol = new TableColumn("Lieblings Tier");
        lastNameCol.setMinWidth(100);
        lastNameCol.setCellValueFactory(cellData -> cellData.getValue().typObjProperty());
        lastNameCol.setCellFactory(comboBoxCellFactory);
        lastNameCol.setOnEditCommit(
                (TableColumn.CellEditEvent<Person, Typ> t) -> {
                    ((Person) t.getTableView().getItems()
                    .get(t.getTablePosition().getRow()))
                    .setTypObj(t.getNewValue());

                });

        TableColumn<Person, Date> emailCol = new TableColumn("Geburtstag");
        emailCol.setMinWidth(200);
        emailCol.setCellValueFactory(cellData -> cellData.getValue().birthdayProperty());
        emailCol.setCellFactory(dateCellFactory);
        emailCol.setOnEditCommit(
                (TableColumn.CellEditEvent<Person, Date> t) -> {
                    ((Person) t.getTableView().getItems()
                    .get(t.getTablePosition().getRow()))
                    .setBirthday(t.getNewValue());

                });

        table.setItems(data);
        table.getColumns().addAll(firstNameCol, lastNameCol, emailCol);

        final TextField addFirstName = new TextField();
        addFirstName.setPromptText("First Name");
        addFirstName.setMaxWidth(firstNameCol.getPrefWidth());

        final TextField addLastName = new TextField();
        addLastName.setPromptText("Last Name");
        addLastName.setMaxWidth(lastNameCol.getPrefWidth());

        final TextField addEmail = new TextField();
        addEmail.setPromptText("email");
        addEmail.setMaxWidth(emailCol.getPrefWidth());

        final Button addButton = new Button("Add");
        addButton.setOnAction((ActionEvent e)
                -> {
                    data.add(new Person(
                                    addFirstName.getText(),
                                    new Typ("Hund"),
                                    new Date()));
                    addFirstName.clear();
                    addLastName.clear();
                    addEmail.clear();
                }
        );

        hb.getChildren().addAll(addFirstName, addLastName, addEmail, addButton);
        hb.setSpacing(3);

        final VBox vbox = new VBox();
        vbox.setSpacing(5);
        vbox.setPadding(new Insets(10, 0, 0, 10));
        vbox.getChildren().addAll(label, table, hb);

        ((Group) scene.getRoot()).getChildren().addAll(vbox);

        stage.setScene(scene);
        stage.show();
    }

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) {
        launch(args);
    }

    class EditingCell extends TableCell<Person, String> {

        private TextField textField;

        private EditingCell() {
        }

        @Override
        public void startEdit() {
            if (!isEmpty()) {
                super.startEdit();
                createTextField();
                setText(null);
                setGraphic(textField);
                textField.selectAll();
            }
        }

        @Override
        public void cancelEdit() {
            super.cancelEdit();

            setText((String) getItem());
            setGraphic(null);
        }

        @Override
        public void updateItem(String item, boolean empty) {
            super.updateItem(item, empty);

            if (empty) {
                setText(item);
                setGraphic(null);
            } else {
                if (isEditing()) {
                    if (textField != null) {
                        textField.setText(getString());
//                        setGraphic(null);
                    }
                    setText(null);
                    setGraphic(textField);
                } else {
                    setText(getString());
                    setGraphic(null);
                }
            }
        }

        private void createTextField() {
            textField = new TextField(getString());
            textField.setMinWidth(this.getWidth() - this.getGraphicTextGap() * 2);
            textField.setOnAction((e) -> commitEdit(textField.getText()));
            textField.focusedProperty().addListener((ObservableValue<? extends Boolean> observable, Boolean oldValue, Boolean newValue) -> {
                if (!newValue) {
                    System.out.println("Commiting " + textField.getText());
                    commitEdit(textField.getText());
                }
            });
        }

        private String getString() {
            return getItem() == null ? "" : getItem();
        }
    }

    class DateEditingCell extends TableCell<Person, Date> {

        private DatePicker datePicker;

        private DateEditingCell() {
        }

        @Override
        public void startEdit() {
            if (!isEmpty()) {
                super.startEdit();
                createDatePicker();
                setText(null);
                setGraphic(datePicker);
            }
        }

        @Override
        public void cancelEdit() {
            super.cancelEdit();

            setText(getDate().toString());
            setGraphic(null);
        }

        @Override
        public void updateItem(Date item, boolean empty) {
            super.updateItem(item, empty);

            if (empty) {
                setText(null);
                setGraphic(null);
            } else {
                if (isEditing()) {
                    if (datePicker != null) {
                        datePicker.setValue(getDate());
                    }
                    setText(null);
                    setGraphic(datePicker);
                } else {
                    setText(getDate().format(DateTimeFormatter.ofLocalizedDate(FormatStyle.MEDIUM)));
                    setGraphic(null);
                }
            }
        }

        private void createDatePicker() {
            datePicker = new DatePicker(getDate());
            datePicker.setMinWidth(this.getWidth() - this.getGraphicTextGap() * 2);
            datePicker.setOnAction((e) -> {
                System.out.println("Committed: " + datePicker.getValue().toString());
                commitEdit(Date.from(datePicker.getValue().atStartOfDay(ZoneId.systemDefault()).toInstant()));
            });
//            datePicker.focusedProperty().addListener((ObservableValue<? extends Boolean> observable, Boolean oldValue, Boolean newValue) -> {
//                if (!newValue) {
//                    commitEdit(Date.from(datePicker.getValue().atStartOfDay(ZoneId.systemDefault()).toInstant()));
//                }
//            });
        }

        private LocalDate getDate() {
            return getItem() == null ? LocalDate.now() : getItem().toInstant().atZone(ZoneId.systemDefault()).toLocalDate();
        }
    }

    class ComboBoxEditingCell extends TableCell<Person, Typ> {

        private ComboBox<Typ> comboBox;

        private ComboBoxEditingCell() {
        }

        @Override
        public void startEdit() {
            if (!isEmpty()) {
                super.startEdit();
                createComboBox();
                setText(null);
                setGraphic(comboBox);
            }
        }

        @Override
        public void cancelEdit() {
            super.cancelEdit();

            setText(getTyp().getTyp());
            setGraphic(null);
        }

        @Override
        public void updateItem(Typ item, boolean empty) {
            super.updateItem(item, empty);

            if (empty) {
                setText(null);
                setGraphic(null);
            } else {
                if (isEditing()) {
                    if (comboBox != null) {
                        comboBox.setValue(getTyp());
                    }
                    setText(getTyp().getTyp());
                    setGraphic(comboBox);
                } else {
                    setText(getTyp().getTyp());
                    setGraphic(null);
                }
            }
        }

        private void createComboBox() {
            comboBox = new ComboBox<>(typData);
            comboBoxConverter(comboBox);
            comboBox.valueProperty().set(getTyp());
            comboBox.setMinWidth(this.getWidth() - this.getGraphicTextGap() * 2);
            comboBox.setOnAction((e) -> {
                System.out.println("Committed: " + comboBox.getSelectionModel().getSelectedItem());
                commitEdit(comboBox.getSelectionModel().getSelectedItem());
            });
//            comboBox.focusedProperty().addListener((ObservableValue<? extends Boolean> observable, Boolean oldValue, Boolean newValue) -> {
//                if (!newValue) {
//                    commitEdit(comboBox.getSelectionModel().getSelectedItem());
//                }
//            });
        }

        private void comboBoxConverter(ComboBox<Typ> comboBox) {
            // Define rendering of the list of values in ComboBox drop down. 
            comboBox.setCellFactory((c) -> {
                return new ListCell<Typ>() {
                    @Override
                    protected void updateItem(Typ item, boolean empty) {
                        super.updateItem(item, empty);

                        if (item == null || empty) {
                            setText(null);
                        } else {
                            setText(item.getTyp());
                        }
                    }
                };
            });
        }

        private Typ getTyp() {
            return getItem() == null ? new Typ("") : getItem();
        }
    }

    public static class Typ {

        private final SimpleStringProperty typ;

        public Typ(String typ) {
            this.typ = new SimpleStringProperty(typ);
        }

        public String getTyp() {
            return this.typ.get();
        }

        public StringProperty typProperty() {
            return this.typ;
        }

        public void setTyp(String typ) {
            this.typ.set(typ);
        }

        @Override
        public String toString() {
            return typ.get();
        }

    }
    
    public static class Project {
        private final SimpleStringProperty name;
        private final SimpleListProperty<Person> persons;

        public Project(String name, List<Person> persons) {
            this.name = new SimpleStringProperty(name);
            
            this.persons = new SimpleListProperty<>();
            this.persons.setAll(persons);
        }
        
        public String getName() {
            return name.get();
        }

        public StringProperty nameProperty() {
            return this.name;
        }

        public void setName(String name) {
            this.name.set(name);
        }
        
        public List<Person> getPersons() {
            return this.persons.get();
        }
        
        public SimpleListProperty<Person> personsProperty() {
            return this.persons;
        }
        
        public void setPersons(List<Person> persons) {
            this.persons.setAll(persons);
        }
        
    }

    public static class Person {

        private final SimpleStringProperty firstName;
        private final SimpleObjectProperty<Typ> typ;
        private final SimpleObjectProperty<Date> birthday;

        public Person(String firstName, Typ typ, Date bithday) {
            this.firstName = new SimpleStringProperty(firstName);
            this.typ = new SimpleObjectProperty(typ);
            this.birthday = new SimpleObjectProperty(bithday);
        }

        public String getFirstName() {
            return firstName.get();
        }

        public StringProperty firstNameProperty() {
            return this.firstName;
        }

        public void setFirstName(String firstName) {
            this.firstName.set(firstName);
        }

        public Typ getTypObj() {
            return typ.get();
        }

        public ObjectProperty<Typ> typObjProperty() {
            return this.typ;
        }

        public void setTypObj(Typ typ) {
            this.typ.set(typ);
        }

        public Date getBirthday() {
            return birthday.get();
        }

        public ObjectProperty<Date> birthdayProperty() {
            return this.birthday;
        }

        public void setBirthday(Date birthday) {
            this.birthday.set(birthday);
        }

    }

}