/*
 * SoapUI, Copyright (C) 2004-2016 SmartBear Software 
 *
 * Licensed under the EUPL, Version 1.1 or - as soon as they will be approved by the European Commission - subsequent 
 * versions of the EUPL (the "Licence"); 
 * You may not use this work except in compliance with the Licence. 
 * You may obtain a copy of the Licence at: 
 * 
 * http://ec.europa.eu/idabc/eupl 
 * 
 * Unless required by applicable law or agreed to in writing, software distributed under the Licence is 
 * distributed on an "AS IS" basis, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either 
 * express or implied. See the Licence for the specific language governing permissions and limitations 
 * under the Licence. 
 */

package com.eviware.soapui.impl.settings;

import com.eviware.soapui.model.settings.Settings;
import com.eviware.soapui.model.settings.SettingsListener;
import com.eviware.soapui.support.types.StringToStringMap;

import java.util.HashSet;
import java.util.Set;

/**
 * Default Settings implementation
 *
 * @author Ole.Matzura
 */

public class SettingsImpl implements Settings {
    private final Settings parent;
    private final StringToStringMap values = new StringToStringMap();
    private final Set<SettingsListener> listeners = new HashSet<SettingsListener>();

    public SettingsImpl() {
        this(null);
    }

    public SettingsImpl(Settings parent) {
        this.parent = parent;
    }

    public boolean isSet(String id) {
        return values.containsKey(id);
    }

    public String getString(String id, String defaultValue) {
        if (values.containsKey(id)) {
            return values.get(id);
        }
        return parent == null ? defaultValue : parent.getString(id, defaultValue);
    }

    public void setString(String id, String value) {
        String oldValue = getString(id, null);
        values.put(id, value);

        for (SettingsListener listener : listeners) {
            listener.settingChanged(id, value, oldValue);
        }
    }

    public void reloadSettings() {
        for (SettingsListener listener : listeners) {
            listener.settingsReloaded();
        }
    }

    public boolean getBoolean(String id) {
        return getBoolean(id, false);
    }

    @Override
    public boolean getBoolean(String id, boolean defaultValue) {
        if (values.containsKey(id)) {
            return Boolean.parseBoolean(values.get(id));
        }
        return parent == null ? defaultValue : parent.getBoolean(id);
    }

    public void setBoolean(String id, boolean value) {
        String oldValue = getString(id, null);
        values.put(id, Boolean.toString(value));

        for (SettingsListener listener : listeners) {
            listener.settingChanged(id, Boolean.toString(value), oldValue);
        }
    }

    public long getLong(String id, long defaultValue) {
        if (values.containsKey(id)) {
            try {
                return Long.parseLong(values.get(id));
            } catch (NumberFormatException e) {
            }
        }

        return defaultValue;
    }

    public void addSettingsListener(SettingsListener listener) {
        listeners.add(listener);
    }

    public void removeSettingsListener(SettingsListener listener) {
        listeners.remove(listener);
    }

    public void clearSetting(String id) {
        values.remove(id);
    }

    public void setLong(String id, long value) {
        values.put(id, Long.toString(value));
    }
}