/*
 * 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.ddmlib;

import com.android.annotations.Nullable;
import com.android.tradefed.log.LogUtil.CLog;

import java.util.regex.Matcher;
import java.util.regex.Pattern;

/**
 * Output receiver for "pm install-create" command line.
 *
 * <p>Extension of {@link com.android.ddmlib.InstallReceiver} that can receive a Success message
 * from ADB followed by a session ID.
 */
public class InstallCreateReceiver extends InstallReceiver {

    private static final Pattern successPattern = Pattern.compile("Success: .*\\[(\\d*)\\]");

    private String mSessionId = null;

    /**
     * Returns the session ID if install-create create session successfully. Returns {@code null} if
     * failure is seen.
     */
    @Nullable
    public String getSessionId() {
        if (getSuccessMessage() == null) {
            return null;
        }
        String output = getSuccessMessage();
        Matcher matcher = successPattern.matcher(output);
        if (matcher.matches()) {
            mSessionId = matcher.group(1);
        } else {
            mSessionId = null;
            CLog.e(String.format("Output '%s' doesn't provide session id", output));
        }

        return mSessionId;
    }
}