package com.onaro.util.jfc.search;

import java.awt.BorderLayout;
import java.awt.Insets;
import java.awt.event.ActionEvent;
import java.awt.event.KeyEvent;
import java.util.Arrays;

import javax.swing.AbstractAction;
import javax.swing.JComponent;
import javax.swing.JPanel;
import javax.swing.JTable;
import javax.swing.KeyStroke;
import javax.swing.UIManager;

import com.jidesoft.swing.SearchableBar;

/**
 * Utility class for installing search capabilities in components
 */
public class SearchUtils {
    private static final String ACTION_MAP_FIND_KEY = "find"; //$NON-NLS-1$
    private static final KeyStroke SHOW_SEARCH_BAR_KEY_STROKE = KeyStroke.getKeyStroke(KeyEvent.VK_F, KeyEvent.CTRL_DOWN_MASK);

    /**
     * Install search bar in the panel for searching in the table
     * To see the search panel use Ctrl+F
     * @param panel the panel in which the search bar will appear (at the bottom)
     * @param table table to search
     */
    public static void installSearchBar(final JPanel panel, JTable table, JComponent...components) {
        //define the search
        AllColumnsTableSearchable searchable = new AllColumnsTableSearchable(table);

        //search bar
        SearchableBar searchableBar = new MySearchableBar(searchable);
        searchableBar.setInstaller(new SearchBarInstaller(table,panel));
        searchableBar.setVisibleButtons(~SearchableBar.SHOW_REPEATS & ~SearchableBar.SHOW_MATCHCASE & ~SearchableBar.SHOW_HIGHLIGHTS);

        //register the key stroke to show the search bar
        JComponent[] comps = Arrays.copyOf(components, components.length + 2);
        
        comps[comps.length - 1] = panel;
        comps[comps.length - 2] = table;
        registerFindKeyStroke(searchableBar, comps);
    }

    private static void registerFindKeyStroke(SearchableBar searchableBar, JComponent ... components) {
        for (JComponent component: components) {
            ShowSearchBarAction showSearchBarAction = new ShowSearchBarAction(searchableBar);
            component.getInputMap().put(SHOW_SEARCH_BAR_KEY_STROKE, JComponent.WHEN_ANCESTOR_OF_FOCUSED_COMPONENT);
            component.getActionMap().put(ACTION_MAP_FIND_KEY, showSearchBarAction);
        }
    }

    private static class ShowSearchBarAction extends AbstractAction{
        private static final long serialVersionUID = 1L;
        private SearchableBar searchableBar;

        public ShowSearchBarAction(SearchableBar searchableBar) {
            this.searchableBar = searchableBar;
        }

        public void actionPerformed(ActionEvent actionevent) {
            searchableBar.getInstaller().openSearchBar(searchableBar);
            searchableBar.focusSearchField();
        }
    }

    private static class SearchBarInstaller implements SearchableBar.Installer {
        private JTable table;
        private final JPanel panel;

        public SearchBarInstaller(JTable table, JPanel panel) {
            this.table = table;
            this.panel = panel;
        }

        public void openSearchBar(SearchableBar searchableBar) {
            panel.add(searchableBar, BorderLayout.NORTH);
            panel.revalidate();
            //reset the searchable to find the next relative to the current selected row and not the last found row
            searchableBar.getSearchable().setCursor(-1);
        }

        public void closeSearchBar(SearchableBar searchableBar) {
            panel.remove(searchableBar);
            panel.revalidate();
            table.requestFocus();
        }
    }

    private static class MySearchableBar extends SearchableBar {
        private static final long serialVersionUID = 1L;

        public MySearchableBar(AllColumnsTableSearchable searchable) {
            super(searchable, true);
            Insets insets = UIManager.getDefaults().getInsets("ToolBar.Button.margin"); //$NON-NLS-1$
            _closeButton.setMargin(insets);
            _findNextButton.setMargin(insets);
            _findPrevButton.setMargin(insets);
            _highlightsButton.setMargin(insets);
        }
    }
}