package com.onaro.sanscreen.client.view.changes;

import com.onaro.commons.util.OnaroArrays;
import com.onaro.sanscreen.server.changes.Change;
import com.onaro.sanscreen.server.changes.ChangeConstants;
import com.onaro.sanscreen.types.ChangeType;
import static com.onaro.sanscreen.types.ChangeType.*;

import java.util.Set;

public class TypeFilterHostVirtualization implements TypeFilter {
    public final static Set<ChangeType> HOST_CHANGE_TYPES = OnaroArrays.asSet(
            DEVICE_UP,
            DEVICE_DOWN,
            DEVICE_CREATED,
            DEVICE_ATTRIBUTE_CHANGE,
            DEVICE_CONFIGURATION_CHANGE,
            HOST_ADDED_TO_APPLICATION,
            HOST_REMOVED_FROM_APPLICATION);

    /**
     * Tests if a change-group is related to a virtual server
     * @param changeGroup the change-group
     * @return true if this change is related to a virtual server
     */
    public boolean shouldBeDisplayed(ChangeGroup changeGroup) {
        return ChangeType.HOST_VIRTUALIZATION_TYPES.contains(changeGroup.getType()) ||
            ChangeType.TOO_MANY_CHANGES.equals(changeGroup.getType()) ||
            isVirtualServerChange(changeGroup);
    }

    private boolean isVirtualServerChange(ChangeGroup changeGroup) {
        if(HOST_CHANGE_TYPES.contains(changeGroup.getType())) {
            for (Change change : changeGroup.getChanges()) {
                if(change.getValue(ChangeConstants.VIRTUAL_SERVER) != null){
                    return true;
                }
            }
        }

        return false;
    }
}