package de.uniluebeck.mi.projmi6.controller;

/**
 * Created by Johannes on 12.11.15.
 */
import de.uniluebeck.mi.projmi6.db.DBHandler;
import de.uniluebeck.mi.projmi6.model.Patient;
import de.uniluebeck.mi.projmi6.model.Station;
import de.uniluebeck.mi.projmi6.model.StationsUebersichtsItem;
import javafx.beans.binding.Bindings;
import javafx.beans.binding.ObjectBinding;
import javafx.beans.property.ObjectProperty;
import javafx.beans.property.ReadOnlyObjectProperty;
import javafx.beans.property.SimpleObjectProperty;
import javafx.collections.FXCollections;
import javafx.collections.ObservableList;
import javafx.fxml.FXML;
import javafx.fxml.FXMLLoader;
import javafx.scene.Parent;
import javafx.scene.Scene;
import javafx.scene.control.*;
import javafx.scene.control.cell.PropertyValueFactory;
import javafx.scene.image.Image;
import javafx.stage.Modality;
import javafx.stage.Stage;

import java.io.IOException;
import java.rmi.server.ExportException;
import java.sql.SQLException;
import java.time.LocalDate;

/**
 * Controller class.
 */
public class PatientTablesController{

    private MainController mainController;

    @FXML
    private Label lblTablePatientEmpty;

    @FXML
    private Label lblTableStationEmpty;

    @FXML
    private Button btnPatCreate;

    @FXML
    private Button btnPatEdit;

    @FXML
    private TableView<Patient> tblPatientOverview;

    @FXML
    private TableColumn<Patient, String> colPatPatId;

    @FXML
    private TableColumn<Patient, String> colPatGeburtsname;

    @FXML
    private TableColumn<Patient, String> colPatNachname;

    @FXML
    private TableColumn<Patient, String> colPatVorname;

    @FXML
    private TableColumn<Patient, LocalDate> colPatGebDatum;

    @FXML
    private TableColumn<Patient, String> colPatStrasse;

    @FXML
    private TableColumn<Patient, String> colPatPlz;

    @FXML
    private TableColumn<Patient, String> colPatOrt;

    @FXML
    private TableColumn<Patient, String> colPatCave;




    @FXML
    private ToggleButton btnEntlassenePatientenZeigen;

    @FXML
    private ComboBox<Station> cmbStationenFilter;

    @FXML
    private TableView<StationsUebersichtsItem> tblStationOverview;

    @FXML
    private TableColumn<StationsUebersichtsItem, String> colStatPatId;

    @FXML
    private TableColumn<StationsUebersichtsItem, String> colStatFullName;

    @FXML
    private TableColumn<StationsUebersichtsItem, String> colStatGebDatum;

    @FXML
    private TableColumn<StationsUebersichtsItem, String> colStatAlter;

    @FXML
    private TableColumn<StationsUebersichtsItem, String> colStatAufnahmedatum;

    @FXML
    private TableColumn<StationsUebersichtsItem, String> colStatEntlassungsdatum;

    @FXML
    private Tab stationOverviewTab, patientOverviewTab;

    @FXML
    private  TabPane patientOverviewTabPane;


    public PatientTablesController(MainController mainController){
        this.mainController = mainController;
    }


    @FXML
    public void initialize() {
        btnPatEdit.disableProperty().bind(tblPatientOverview.getSelectionModel().selectedItemProperty().isNull());
        tblPatientOverview.setRowFactory(tableView -> {
            TableRow<Patient> tableRow = new TableRow<>();
            tableRow.setOnMouseClicked(event -> {
                if(event.getClickCount()==2 && (!tableRow.isEmpty())){
                    Patient patient = tableRow.getItem();
                    showEditWindow(patient);
                }
            });
            return  tableRow;
        });
        lblTablePatientEmpty.setText("Liste ist leer.");
        lblTableStationEmpty.setText("Daten werden geladen...");

        cmbStationenFilter.itemsProperty().bind(mainController.stationenProperty());

        ObservableList<Patient> patientList = null;
        try {
            patientList = FXCollections.<Patient>observableArrayList(DBHandler.getAllPatients());
        } catch (SQLException e) {
            e.printStackTrace();
        }


        tblPatientOverview.setItems(patientList);

        initColumnsPatient();
        initColumnsStation();
    }

    private void initColumnsPatient(){
        colPatPatId.setCellValueFactory(cellDataFeatures -> cellDataFeatures.getValue().patIDProperty().asString());
        colPatGeburtsname.setCellValueFactory(new PropertyValueFactory<>("geburtsname"));
        colPatNachname.setCellValueFactory(new PropertyValueFactory<>("nachname"));
        colPatVorname.setCellValueFactory(new PropertyValueFactory<>("vorname"));
        colPatGebDatum.setCellValueFactory(cellDataFeatures -> cellDataFeatures.getValue().geburtsdatumProperty());
        colPatStrasse.setCellValueFactory(cellDataFeatures -> {
            Patient patient = cellDataFeatures.getValue();
           return  Bindings.concat(patient.strasseProperty(), " ", patient.hausnummerProperty());
        });
        colPatPlz.setCellValueFactory(new PropertyValueFactory<>("plz"));
        colPatOrt.setCellValueFactory(new PropertyValueFactory<>("ort"));
        colPatCave.setCellValueFactory(new PropertyValueFactory<>("cave"));
    }


    private void initColumnsStation(){
        colStatPatId.setCellValueFactory(cellDataFeatures -> cellDataFeatures.getValue().patIdProperty().asString());
        colStatFullName.setCellValueFactory(cellDataFeatures -> cellDataFeatures.getValue().patNameProperty());
        colStatGebDatum.setCellValueFactory(cellDataFeatures -> cellDataFeatures.getValue().patBirthdateProperty().asString());
        colStatAlter.setCellValueFactory(cellDataFeatures -> cellDataFeatures.getValue().patAgeProperty().asString());
        colStatAufnahmedatum.setCellValueFactory(cellDataFeatures -> cellDataFeatures.getValue().stationAufnahmeProperty().asString());
        colStatEntlassungsdatum.setCellValueFactory(cellDataFeatures -> cellDataFeatures.getValue().stationEntlassungProperty().asString());
    }

    @FXML
    private void clickedCreatePatient (){
        showEditWindow(null);
    }


    @FXML
    private  void clickedEditPatient(){
        showEditWindow(tblPatientOverview.getSelectionModel().getSelectedItem());
    }

    private void showEditWindow(Patient patient){
        FXMLLoader fxmlLoader = new FXMLLoader();
        fxmlLoader.setLocation(getClass().getClassLoader().getResource("patient_edit.fxml"));
        PatientEditorController patientEditorController = new PatientEditorController(mainController);
        fxmlLoader.setControllerFactory(clazz -> patientEditorController);

        Parent root = null;
        try{
            root = fxmlLoader.load();
        }catch (IOException e){
            e.printStackTrace();
            return;
        }

        Stage stage = new Stage();

        stage.setTitle(patient==null ? "Neuen Patienten erstellen": "Patient bearbeiten");
        stage.setScene(new Scene(root, 600, 600));

        stage.getIcons().add(new Image("icon.png"));

        stage.initModality(Modality.WINDOW_MODAL);
        stage.initOwner(btnPatEdit.getScene().getWindow());
        patientEditorController.setPatient(patient);
        stage.show();
    }


    public ObjectBinding<Patient> selectedPatientProperty(){

        return  Bindings.<Patient>createObjectBinding(() ->{
            return patientOverviewTabPane.getSelectionModel().getSelectedItem().equals(patientOverviewTab)
                    ? tblPatientOverview.getSelectionModel().getSelectedItem()
                    : null; //(Patient)tblStationOverview.getSelectionModel().getSelectedItem(); //TODO
        }, tblPatientOverview.getSelectionModel().selectedItemProperty(),
                tblStationOverview.getSelectionModel().selectedItemProperty(),
                patientOverviewTabPane.getSelectionModel().selectedItemProperty());

    }

    public Patient getSelectedPatient(){
        return selectedPatientProperty().get();
    }

}