package fbcn.controller;

import fbcn.Exceptions;
import fbcn.Utility;
import fbcn.model.OrderedList;
import fbcn.model.entity.Company.Company;
import fbcn.model.entity.Company.CompanyDAO;
import fbcn.model.entity.User.Admin;
import fbcn.model.entity.User.Employee;
import fbcn.model.entity.User.User;
import fbcn.model.entity.User.UserDAO;
import javafx.fxml.FXML;
import javafx.fxml.FXMLLoader;
import javafx.scene.Parent;
import javafx.scene.Scene;
import javafx.scene.control.*;
import javafx.scene.paint.Color;
import javafx.stage.Stage;
import java.io.IOException;
import java.sql.Date;
import java.time.LocalDate;


public class Controller_UserManager{

    @FXML public Label lblUserInfo;
    @FXML public Label txfResult;
    @FXML public ListView<String> lvData;
    @FXML public ComboBox<String> chbSelectCompnayAdmin;
    @FXML public ToggleButton btnType;
    @FXML public Button btnLoadData;
    @FXML public TextField txfNickname;
    @FXML public TextField txfName;
    @FXML public TextField txfSurname;
    @FXML public TextField txfPassword;
    @FXML public DatePicker dtDate;
    @FXML public RadioButton rbtnUpdate;
    @FXML public RadioButton rbtnDelete;
    @FXML public RadioButton rbtnCreate;

    private User loggedUser;
    private OrderedList<User> orderedList;
    private String updateName;



    public void setUser(User newloggedUser){
        loggedUser = newloggedUser;
        String text = "Logged in as: " + this.loggedUser.getNickname();
        lblUserInfo.setText(text);
        Utility.setTextCompanyComboBox(chbSelectCompnayAdmin);
        txfResult.setTextFill(Color.GREEN);
        txfResult.setVisible(false);
        dtDate.setValue(LocalDate.now());
    }

    @FXML private void usrBtnOnHandlerMakeAction() throws Exception {
        UserDAO userManager = new UserDAO();
        if(rbtnDelete.isSelected()) {
            usrDeleteUser(userManager);
        }
        else if(usrCcheckIfAreNull()){
            if(rbtnCreate.isSelected()){
                usrCreateUser(userManager);
                usrClearInsets();
                usrSetOperationExit(true);
            }
            else if(rbtnUpdate.isSelected()){
                usrUpdateUser(userManager);
                usrClearInsets();
                usrSetOperationExit(true);
                usrSetEditable(false);
            }
        }
    }
    @FXML public void usrBtnOnChnageTypeHandler(){
        if(btnType.isSelected()){
            btnType.setText("admin");
        }
        else {
            btnType.setText("user");
        }
    }

    @FXML public void usrBtnloadData() throws Exception {
        UserDAO userDAO = new UserDAO();
        orderedList = userDAO.findByIdCompany(loggedUser.getCompany().getId(),loggedUser.getId());
        for (int i = 0;i<orderedList.size();i++){
            User user = orderedList.get(i);
            lvData.getItems().add("Nickname: "+user.getNickname()+"\n\tCompany : "+ new CompanyDAO().findById(user.getCompany().getId()).get(0).getName());
            chbSelectCompnayAdmin.getSelectionModel().select(user.getCompany().getId()-1);
        }
        btnLoadData.setDisable(true);
    }

    /**
     * This mehtod loads data to the listview
     * @throws Exception
     */
    @FXML private void usrLvDataMouseClick() throws Exceptions.exceptionNullDate{
        User user = orderedList.get(lvData.getSelectionModel().getSelectedIndex());
        lblUserInfo.setDisable(true);
        txfNickname.setText(user.getNickname());
        txfPassword.setText(user.getPassword());
        txfSurname.setText(user.getSecondname());
        try{
            if(user.getBirthday() == null){
                dtDate.setValue(LocalDate.now());
                throw new Exceptions.exceptionNullDate();
            }
            else dtDate.setValue(user.getBirthday().toLocalDate());
        }catch(Exceptions.exceptionNullDate e){
            System.err.println(e.getMessage());
        }

        if(rbtnUpdate.isSelected()) {
            updateName = txfNickname.getText();
            usrSetEditable(true);
        }

        usrReloadScreen(false);
    }

    public void usrCreateUser( UserDAO userManager) throws Exception {
        if(Utility.checkIfUsernameExists(txfNickname.getText())){
            if(lvData.getItems() == null){dtDate.setValue(LocalDate.now());}
            CompanyDAO companyManager = new CompanyDAO();
            try {
                if (btnType.isSelected()&&usrCcheckIfAreNull()){
                    userManager.insert(new Admin(0, txfNickname.getText(), txfPassword.getText(),txfName.getText(),txfSurname.getText(),Date.valueOf(dtDate.getValue()), companyManager.findIdByName(chbSelectCompnayAdmin.getSelectionModel().getSelectedItem())));
                } else if ((!btnType.isSelected()&&usrCcheckIfAreNull())){
                    userManager.insert(new Employee(0, txfNickname.getText(), txfPassword.getText(), txfName.getText(), txfSurname.getText(), Date.valueOf(dtDate.getValue()), companyManager.findIdByName(chbSelectCompnayAdmin.getSelectionModel().getSelectedItem())));
                }
            }catch(Exceptions.exceptionUnableToInsertData e) {
                e.printStackTrace();
                System.err.println(e.getMessage());
            }
        }
    }

    public void usrUpdateUser( UserDAO userManager) throws Exception {
        if(lvData.getItems() == null){dtDate.setValue(LocalDate.now());}
        try {
            User user =orderedList.get(lvData.getSelectionModel().getSelectedIndex());
            if (btnType.isSelected()&&usrCcheckIfAreNull()){
                user.setType("admin");
            } else if ((!btnType.isSelected())&&btnType.isSelected()&&usrCcheckIfAreNull()){
                user.setType("user");
            }
            user.getId();
            user.setNickname(txfNickname.getText());
            user.setPassword(txfPassword.getText());
            user.setName(txfName.getText());
            user.setSecondname(txfSurname.getText());
            user.setBirthday(Date.valueOf(dtDate.getValue()));
            CompanyDAO companyDAO = new CompanyDAO();
            user.setCompany(companyDAO.findIdByName(chbSelectCompnayAdmin.getSelectionModel().getSelectedItem()));
            userManager.update(user);
        }catch(Exceptions.exceptionUnableToUpdateData e) {
            e.printStackTrace();
            System.err.println(e.getMessage());
        }
        lvData.getItems().clear();
        btnLoadData.setVisible(true);
        usrSetOperationExit(true);
    }

    public void usrDeleteUser(UserDAO userManager)throws Exception{
        User user = orderedList.get(lvData.getSelectionModel().getSelectedIndex());
        System.out.println(user.getNickname());
        userManager.delete(user);
        usrReloadScreen(true);
        usrLvDataMouseClick();
        usrSetOperationExit(true);
        lvData.getItems().clear();
        btnLoadData.setVisible(true);
    }

    public boolean usrCcheckIfAreNull(){
        try{
            if(txfNickname.getText().isEmpty()||txfPassword.getText().isEmpty()){
                throw new Exceptions.exceptionNullInsertUsers();
            }
        }catch (Exceptions.exceptionNullInsertUsers e){
            e.printStackTrace();
            System.err.println(e.getMessage());
            txfResult.setTextFill(Color.RED);
            txfResult.setText(e.getMessage());
            txfResult.setVisible(true);
            return false;
        }
        return  true;
    }

    @FXML private void usrRbOnClickCreate(){
        usrSetEditable(true);
        usrChangeRadioButtons(rbtnCreate);
        usrModifyInterfaceWithRadioButton(false);
        usrClearInsets();
    }

    @FXML private void usrRbOnClickDelete(){
        usrSetEditable(false);
        usrChangeRadioButtons(rbtnDelete);
        usrModifyInterfaceWithRadioButton(true);
    }

    @FXML private void usrRbOnClickUpdate(){
        usrChangeRadioButtons(rbtnUpdate);
        usrSetEditable(false);
        usrModifyInterfaceWithRadioButton(true);
        txfNickname.setDisable(true);
    }

    public void usrSetOperationExit(boolean result){
        if(result){
            txfResult.setVisible(true);
            txfResult.setText("Operation made successfuly!");
            txfResult.setTextFill(Color.GREEN);
        }else{
            txfResult.setVisible(true);
            txfResult.setText("The username you are trying to create already exists.");
            txfResult.setTextFill(Color.RED);
        }
    }

    public void usrChangeRadioButtons(RadioButton button){
        RadioButton [] radioArray = {rbtnDelete,rbtnUpdate,rbtnCreate};
        for (RadioButton x: radioArray) {
            if(button.equals(x)) x.setSelected(true);
            else x.setSelected(false);
        }
    }

    public void usrModifyInterfaceWithRadioButton(Boolean x){
        if(x){
            usrViewcontrolListView(true);
            usrReloadScreen(true);
            txfResult.setVisible(false);
            usrClearInsets();
        }else {
            usrReloadScreen(false);
            usrViewcontrolListView(false);
        }
        txfResult.setVisible(false);
    }

    public void usrViewcontrolListView(Boolean x){
        if(x){
            lvData.setVisible(true);
            lvData.getItems().clear();
        }
        else  lvData.setVisible(false);
    }

    public void usrReloadScreen(Boolean disable){
        chbSelectCompnayAdmin.setDisable(disable);
        btnLoadData.setVisible(disable);
        txfNickname.setDisable(disable);
        txfPassword.setDisable(disable);
        txfName.setDisable(disable);
        txfSurname.setDisable(disable);
        dtDate.setDisable(disable);
        btnLoadData.setDisable(false);
    }

    public void usrClearInsets(){
        txfNickname.setText(null);
        txfPassword.setText(null);
        txfResult.setText(null);
        txfSurname.setText(null);
        dtDate.setValue(LocalDate.now());
    }

    public void usrSetEditable(Boolean result){
        txfPassword.setEditable(result);
        txfName.setEditable(result);
        txfSurname.setEditable(result);
        txfNickname.setEditable(result);
        dtDate.setEditable(result);
    }

    @FXML public void lblExit() throws IOException {
        Utility utility = new Utility();
        utility.openControllerManager(loggedUser,btnLoadData);
    }

}