/*
 * Copyright (C) 2011 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.android.server.pm;

import android.content.pm.ApplicationInfo;

import java.util.Arrays;

abstract class SettingBase {
    private static final int[] USERS_NONE = new int[0];

    int pkgFlags;
    int pkgPrivateFlags;

    protected final PermissionsState mPermissionsState;
    private int[] mPermissionsUpdatedForUserIds = USERS_NONE;

    SettingBase(int pkgFlags, int pkgPrivateFlags) {
        setFlags(pkgFlags);
        setPrivateFlags(pkgPrivateFlags);
        mPermissionsState = new PermissionsState();
    }

    SettingBase(SettingBase base) {
        pkgFlags = base.pkgFlags;
        pkgPrivateFlags = base.pkgPrivateFlags;
        mPermissionsState = new PermissionsState(base.mPermissionsState);
        setPermissionsUpdatedForUserIds(base.mPermissionsUpdatedForUserIds);
    }

    public PermissionsState getPermissionsState() {
        return mPermissionsState;
    }

    public int[] getPermissionsUpdatedForUserIds() {
        return mPermissionsUpdatedForUserIds;
    }

    public void setPermissionsUpdatedForUserIds(int[] userIds) {
        if (Arrays.equals(mPermissionsUpdatedForUserIds, userIds)) {
            return;
        }

        if (userIds == USERS_NONE) {
            mPermissionsUpdatedForUserIds = userIds;
        } else {
            mPermissionsUpdatedForUserIds = Arrays.copyOf(userIds, userIds.length);
        }
    }

    void setFlags(int pkgFlags) {
        this.pkgFlags = pkgFlags
                & (ApplicationInfo.FLAG_SYSTEM
                        | ApplicationInfo.FLAG_EXTERNAL_STORAGE);
    }

    void setPrivateFlags(int pkgPrivateFlags) {
        this.pkgPrivateFlags = pkgPrivateFlags
                & (ApplicationInfo.PRIVATE_FLAG_PRIVILEGED
                        | ApplicationInfo.PRIVATE_FLAG_FORWARD_LOCK);
    }
}