/*
 * Copyright (C) 2018 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.settings.wrapper;

import android.annotation.Nullable;
import android.content.Context;
import android.telephony.euicc.EuiccManager;

/**
 * This class replicates a subset of the {@link android.telephony.euicc.EuiccManager}.
 * The interface exists so that we can use a thin wrapper around the EuiccManager in
 * production code and a mock in tests.
 */
public class EuiccManagerWrapper {

    private final EuiccManager mEuiccManager;

    public EuiccManagerWrapper(Context context) {
        mEuiccManager = (EuiccManager) context.getSystemService(Context.EUICC_SERVICE);
    }

    /**
     * Returns the EID identifying the eUICC hardware.
     *
     * <p>Requires that the calling app has carrier privileges on the active subscription on the
     * eUICC.
     *
     * @return the EID. May be null if {@link EuiccManager#isEnabled()} is false or the eUICC is not
     * ready.
     */
    @Nullable
    public String getEid() {
        return mEuiccManager.getEid();
    }
}