/*
 * Copyright 2004 - 2013 Wayne Grant
 *           2013 - 2025 Kai Kramer
 *
 * This file is part of KeyStore Explorer.
 *
 * KeyStore Explorer is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * KeyStore Explorer is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with KeyStore Explorer.  If not, see <http://www.gnu.org/licenses/>.
 */
package org.kse.gui.crypto.policyinformation;

import java.io.IOException;
import java.util.Arrays;
import java.util.Comparator;
import java.util.List;
import java.util.ResourceBundle;

import javax.swing.table.AbstractTableModel;

import org.bouncycastle.asn1.x509.PolicyInformation;
import org.kse.crypto.x509.PolicyInformationUtil;

/**
 * The table model used to display policy information.
 */
public class PolicyInformationTableModel extends AbstractTableModel {
    private static final long serialVersionUID = 1L;

    private static ResourceBundle res = ResourceBundle.getBundle("org/kse/gui/crypto/policyinformation/resources");

    private String[] columnNames;
    private Object[][] data;

    /**
     * Construct a new PolicyInformationTableModel.
     */
    public PolicyInformationTableModel() {
        columnNames = new String[1];
        columnNames[0] = res.getString("PolicyInformationTableModel.PolicyInformationColumn");

        data = new Object[0][0];
    }

    /**
     * Load the PolicyInformationTableModel with policy information.
     *
     * @param policyInformation The policy information
     */
    public void load(List<PolicyInformation> policyInformation) {
        PolicyInformation[] policyInformationArray = policyInformation.toArray(
                new PolicyInformation[0]);
        Arrays.sort(policyInformationArray, new PolicyInformationComparator());

        data = new Object[policyInformation.size()][1];

        int i = 0;
        for (PolicyInformation policyInfo : policyInformationArray) {
            data[i][0] = policyInfo;
            i++;
        }

        fireTableDataChanged();
    }

    /**
     * Get the number of columns in the table.
     *
     * @return The number of columns
     */
    @Override
    public int getColumnCount() {
        return columnNames.length;
    }

    /**
     * Get the number of rows in the table.
     *
     * @return The number of rows
     */
    @Override
    public int getRowCount() {
        return data.length;
    }

    /**
     * Get the name of the column at the given position.
     *
     * @param col The column position
     * @return The column name
     */
    @Override
    public String getColumnName(int col) {
        return columnNames[col];
    }

    /**
     * Get the cell value at the given row and column position.
     *
     * @param row The row position
     * @param col The column position
     * @return The cell value
     */
    @Override
    public Object getValueAt(int row, int col) {
        return data[row][col];
    }

    /**
     * Get the class at of the cells at the given column position.
     *
     * @param col The column position
     * @return The column cells' class
     */
    @Override
    public Class<?> getColumnClass(int col) {
        return PolicyInformation.class;
    }

    /**
     * Is the cell at the given row and column position editable?
     *
     * @param row The row position
     * @param col The column position
     * @return True if the cell is editable, false otherwise
     */
    @Override
    public boolean isCellEditable(int row, int col) {
        return false;
    }

    static class PolicyInformationComparator implements Comparator<PolicyInformation> {
        @Override
        public int compare(PolicyInformation policyInformation1, PolicyInformation policyInformation2) {
            try {
                return PolicyInformationUtil.toString(policyInformation1)
                                            .compareToIgnoreCase(PolicyInformationUtil.toString(policyInformation2));
            } catch (IOException ex) {
                throw new RuntimeException(ex); // We build this data so should
                // not happen
            }
        }
    }
}
