package com.example.ex;

import javafx.application.Application;
import javafx.geometry.Insets;
import javafx.geometry.Pos;
import javafx.scene.Scene;
import javafx.scene.control.*;
import javafx.scene.layout.*;
import javafx.scene.paint.Color;
import javafx.scene.text.Font;
import javafx.stage.Stage;

public class HelloApplication extends Application {
    @Override
    public void start(Stage primaryStage) {
        // Create input fields for a, b, and c
        TextField inputA = new TextField();
        inputA.setPromptText("Enter coefficient a");
        inputA.setMaxWidth(200);

        TextField inputB = new TextField();
        inputB.setPromptText("Enter coefficient b");
        inputB.setMaxWidth(200);

        TextField inputC = new TextField();
        inputC.setPromptText("Enter coefficient c");
        inputC.setMaxWidth(200);

        // Style input fields
        inputA.setStyle("-fx-border-color: #3498db; -fx-border-radius: 5; -fx-padding: 5;");
        inputB.setStyle("-fx-border-color: #3498db; -fx-border-radius: 5; -fx-padding: 5;");
        inputC.setStyle("-fx-border-color: #3498db; -fx-border-radius: 5; -fx-padding: 5;");

        // Create a button to calculate the roots
        Button calculateButton = new Button("Calculate");
        calculateButton.setStyle(
                "-fx-background-color: #2ecc71; -fx-text-fill: white; -fx-font-size: 14px; -fx-padding: 5 10;");

        // Add hover effect to the button
        calculateButton.setOnMouseEntered(e -> calculateButton.setStyle(
                "-fx-background-color: #27ae60; -fx-text-fill: white; -fx-font-size: 14px; -fx-padding: 5 10;"));
        calculateButton.setOnMouseExited(e -> calculateButton.setStyle(
                "-fx-background-color: #2ecc71; -fx-text-fill: white; -fx-font-size: 14px; -fx-padding: 5 10;"));

        // Create a label to display the results
        Label resultLabel = new Label();
        resultLabel.setFont(Font.font("Arial", 16));
        resultLabel.setTextFill(Color.web("#e74c3c")); // Red color for results

        // Set up the event handler for the calculate button
        calculateButton.setOnAction(event -> {
            try {
                // Parse the input values
                double a = Double.parseDouble(inputA.getText());
                double b = Double.parseDouble(inputB.getText());
                double c = Double.parseDouble(inputC.getText());

                // Calculate the discriminant
                double discriminant = b * b - 4 * a * c;

                // Check the discriminant and calculate the roots
                if (discriminant > 0) {
                    double x1 = (-b + Math.sqrt(discriminant)) / (2 * a);
                    double x2 = (-b - Math.sqrt(discriminant)) / (2 * a);
                    resultLabel.setText(String.format("Roots: x1 = %.2f, x2 = %.2f", x1, x2));
                } else if (discriminant == 0) {
                    double x = -b / (2 * a);
                    resultLabel.setText(String.format("Root: x = %.2f", x));
                } else {
                    resultLabel.setText("No real roots (discriminant < 0)");
                }
            } catch (NumberFormatException e) {
                resultLabel.setText("Invalid input! Please enter valid numbers.");
            } catch (ArithmeticException e) {
                resultLabel.setText("Math error! Ensure 'a' is not zero.");
            }
        });

        // Create a layout and add all components
        VBox layout = new VBox(10);
        layout.setPadding(new Insets(20));
        layout.setAlignment(Pos.CENTER);
        layout.getChildren().addAll(inputA, inputB, inputC, calculateButton, resultLabel);

        // Create a scene and set it on the stage
        Scene scene = new Scene(layout, 400, 300);
        primaryStage.setScene(scene);
        primaryStage.setTitle("Quadratic Equation Solver");
        primaryStage.show();
    }

    public static void main(String[] args) {
        launch(args);
    }
}

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