import javax.swing.*;
import java.awt.event.*;
import java.awt.Color;

public class VerifButton implements ActionListener {
    private int GRID_SIZE;
    private JTextField[][] grid;

    public VerifButton(int GRID_SIZE, JTextField[][] grid) {
        this.GRID_SIZE = GRID_SIZE;
        this.grid = grid;
    }

     @Override
    public void actionPerformed(ActionEvent e) {
        if (grilleValide()) {
            JOptionPane.showMessageDialog(null, "La grille est valide.", "Validation", JOptionPane.INFORMATION_MESSAGE);
        } else {
            JOptionPane.showMessageDialog(null, "La grille n'est pas valide.", "Erreur", JOptionPane.ERROR_MESSAGE);
        }
     }

    private boolean grilleValide() {
        for (int row = 0; row < this.GRID_SIZE; row++) {
            for (int col = 0; col < this.GRID_SIZE; col++) {
                if (!grid[row][col].getText().isEmpty()) {
                    int evaluant = Integer.parseInt(grid[row][col].getText());

                    // Test de validité sur les lignes
                    for (int row2 = row + 1; row2 < this.GRID_SIZE; row2++) {
                        if (!grid[row2][col].getText().isEmpty()) {
			    int comparateur = Integer.parseInt(grid[row2][col].getText());

			    if (evaluant == comparateur) {
				grid[row2][col].setBackground(Color.red);
				grid[row][col].setBackground(Color.red);
				return false;
			    }
			}
		    }
                    for (int row2 = row - 1; row2 >= 0; row2--) {
                        if (!grid[row2][col].getText().isEmpty()) {
			    int comparateur = Integer.parseInt(grid[row2][col].getText());
			    
			    if (evaluant == comparateur) {
				grid[row2][col].setBackground(Color.red);
				grid[row][col].setBackground(Color.red);
				return false;
			    }
			}
		    }
		    
                    // Test de validité sur les colonnes
                    for (int col2 = col + 1; col2 < this.GRID_SIZE; col2++) {
                        if (!grid[row][col2].getText().isEmpty()) {
			   int comparateur = Integer.parseInt(grid[row][col2].getText());

			    if (evaluant == comparateur) {
				grid[row][col2].setBackground(Color.red);
				grid[row][col].setBackground(Color.red);
				return false;
			    }
			}

		    }
		    for (int col2 = col - 1; col2 >= 0; col2--) {
			if (!grid[row][col2].getText().isEmpty()) {
			    int comparateur = Integer.parseInt(grid[row][col2].getText());
			    if (evaluant == comparateur) {
				grid[row][col2].setBackground(Color.red);
				grid[row][col].setBackground(Color.red);
				return false;
			    }
			}
		    }
		    
                    // Vérifier la validité dans les régions
                    int rowregion = row/3*3;
		    int colregion = col/3*3;
		    for (int row2 = rowregion; row2 < rowregion + 3; row2++) {
			for (int col2 = colregion; col2 < colregion + 3; col2++) {
			  
                           
                            if (row2 != row && col2 != col ) {
                                
                                if (!grid[row2][col2].getText().isEmpty()) {
                                    int comparateur = Integer.parseInt(grid[row2][col2].getText());
				    
                                    if (evaluant == comparateur) {
                                        grid[row2][col2].setBackground(Color.red);
					grid[row][col].setBackground(Color.red);
					return false;
                                    }
                                }
                            }
                        }
                    }
                }
            }
        }
	return true;
    }
}