package org.activiti.spring;

import org.activiti.engine.impl.calendar.*;
import org.activiti.engine.impl.util.DefaultClockImpl;
import org.activiti.engine.runtime.Clock;

/**
 * Creates an advanced cycle business calendar manager (ACBCM). The ACBCM can handle daylight
 * savings changes when the scheduled time zone is different than the server time zone.
 * <p>
 * Create a factory bean
 * <pre>
 * <bean id="businessCalendarManagerFactory" class="org.activiti.spring.SpringAdvancedBusinessCalendarManagerFactory" />
 * </pre>
 * Add the manager to your org.activiti.spring.SpringProcessEngineConfiguration bean
 * <pre>
 *  <bean id="processEngineConfiguration" class="org.activiti.spring.SpringProcessEngineConfiguration">
 *    ...
 *    <property name="businessCalendarManager">
 *      <bean id="advancedBusinessCalendarManager" factory-bean="businessCalendarManagerFactory" factory-method="getBusinessCalendarManager" />
 *    </property>
 *    ...
 *  </bean>
 * </pre>
 *
 * @author mseiden
 * @see AdvancedCycleBusinessCalendar
 */
public class SpringAdvancedBusinessCalendarManagerFactory {

    private Integer defaultScheduleVersion;

    private Clock clock;

    public Integer getDefaultScheduleVersion() {
        return defaultScheduleVersion;
    }

    public void setDefaultScheduleVersion(Integer defaultScheduleVersion) {
        this.defaultScheduleVersion = defaultScheduleVersion;
    }

    public Clock getClock() {
        if (clock == null) {
            clock = new DefaultClockImpl();
        }
        return clock;
    }

    public void setClock(Clock clock) {
        this.clock = clock;
    }

    public BusinessCalendarManager getBusinessCalendarManager() {
        MapBusinessCalendarManager mapBusinessCalendarManager = new MapBusinessCalendarManager();
        mapBusinessCalendarManager.addBusinessCalendar(DurationBusinessCalendar.NAME, new DurationBusinessCalendar(getClock()));
        mapBusinessCalendarManager.addBusinessCalendar(DueDateBusinessCalendar.NAME, new DueDateBusinessCalendar(getClock()));
        mapBusinessCalendarManager.addBusinessCalendar(AdvancedCycleBusinessCalendar.NAME, new AdvancedCycleBusinessCalendar(getClock(), defaultScheduleVersion));

        return mapBusinessCalendarManager;
    }

}