package de.opcua.app.ui;

import de.opcua.app.config.Settings;
import javafx.event.ActionEvent;
import javafx.fxml.FXML;
import javafx.scene.control.CheckBox;
import javafx.scene.control.ComboBox;
import javafx.scene.control.PasswordField;
import javafx.scene.control.TextField;
import javafx.stage.FileChooser;

import java.io.File;
import java.util.Optional;

public class ConfigController {

  @FXML private TextField endpointTextBox;
  @FXML private TextField hostTextBox;
  
  // HTTP Configuration
  @FXML private CheckBox httpEnabledCheckBox;
  @FXML private TextField httpPortTextBox;
  
  // HTTPS Configuration
  @FXML private CheckBox httpsEnabledCheckBox;
  @FXML private TextField httpsPortTextBox;
  @FXML private TextField keystorePathTextBox;
  @FXML private PasswordField keystorePasswordTextBox;
  @FXML private ComboBox<String> keystoreTypeComboBox;

  private Settings initial;
  private Settings updated;

  public void setSettings(Settings s) {
    this.initial = s;
    if (endpointTextBox != null) endpointTextBox.setText(s.endpoint());
    if (hostTextBox != null) hostTextBox.setText(s.host());
    
    // HTTP fields
    if (httpEnabledCheckBox != null) httpEnabledCheckBox.setSelected(s.httpEnabled());
    if (httpPortTextBox != null) httpPortTextBox.setText(String.valueOf(s.httpPort()));
    
    // HTTPS fields
    if (httpsEnabledCheckBox != null) httpsEnabledCheckBox.setSelected(s.httpsEnabled());
    if (httpsPortTextBox != null) httpsPortTextBox.setText(String.valueOf(s.httpsPort()));
    if (keystorePathTextBox != null) keystorePathTextBox.setText(s.keystorePath());
    if (keystorePasswordTextBox != null) keystorePasswordTextBox.setText(s.keystorePassword());
    if (keystoreTypeComboBox != null) keystoreTypeComboBox.setValue(s.keystoreType());
  }

  @FXML
  public void initialize() {
    // Initialize ComboBox items if present
    if (keystoreTypeComboBox != null) {
      keystoreTypeComboBox.getItems().addAll("JKS", "PKCS12");
      keystoreTypeComboBox.setValue("JKS");
    }
  }

  @FXML
  public void SaveButton_Click(ActionEvent e) {
    try {
      int httpPort = Integer.parseInt(httpPortTextBox.getText());
      int httpsPort = Integer.parseInt(httpsPortTextBox.getText());
      
      updated = new Settings(
          endpointTextBox.getText(),
          hostTextBox.getText(),
          httpEnabledCheckBox != null && httpEnabledCheckBox.isSelected(),
          httpPort,
          httpsEnabledCheckBox != null && httpsEnabledCheckBox.isSelected(),
          httpsPort,
          keystorePathTextBox != null ? keystorePathTextBox.getText() : "",
          keystorePasswordTextBox != null ? keystorePasswordTextBox.getText() : "",
          keystoreTypeComboBox != null ? keystoreTypeComboBox.getValue() : "JKS",
          initial.scriptLoggingEnabled(),
          initial.scriptLogLevel(),
          initial.scriptLogDirectory()
      );
      
      // Close window
      endpointTextBox.getScene().getWindow().hide();
    } catch (NumberFormatException ex) {
      System.err.println("Invalid port number: " + ex.getMessage());
    }
  }
  
  @FXML
  public void BrowseKeystore_Click(ActionEvent e) {
    FileChooser fc = new FileChooser();
    fc.setTitle("Select Keystore");
    fc.getExtensionFilters().addAll(
        new FileChooser.ExtensionFilter("Keystore Files", "*.jks", "*.p12", "*.pfx"),
        new FileChooser.ExtensionFilter("All Files", "*.*")
    );
    
    File file = fc.showOpenDialog(keystorePathTextBox.getScene().getWindow());
    if (file != null) {
        keystorePathTextBox.setText(file.getAbsolutePath());
    }
  }

  public Optional<Settings> getUpdatedSettings() {
    return Optional.ofNullable(updated);
  }
}