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/*
 *
 *    Copyright 2018 The Crux Authors
 *
 *    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 ren.crux.jadb;

import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang3.StringUtils;
import ren.crux.jadb.base.ActivityManagerBase;
import ren.crux.jadb.base.ShellBase;
import ren.crux.jadb.model.Intent;
import ren.crux.jadb.model.Target;
import ren.crux.jadb.util.OutputUtil;

import java.util.List;

import static ren.crux.jadb.Consts.Output.*;

/**
 * @author wangzhihui
 */
@Slf4j
public class ActivityManager {

    protected final ActivityManagerBase base;

    public ActivityManager(ShellBase base) {
        this.base = new ActivityManagerBase(base);
    }

    /**
     * Force stop everything associated with package (the app's package name).
     *
     * @param target
     * @param packageName
     * @return
     * @throws Exception
     */
    public boolean forceStop(Target target, String packageName) throws Exception {
        String output = base.forceStop(target, packageName);
        return StringUtils.isBlank(output);
    }

    public boolean forceStop(String packageName) throws Exception {
        return forceStop(null, packageName);
    }

    /**
     * Kill all processes associated with package (the app's package name).
     * 
     * This command kills only processes that are safe to kill and that will not impact the user experience.
     *
     * @param target
     * @param packageName
     * @return
     * @throws Exception
     */
    public boolean kill(Target target, String packageName) throws Exception {
        String output = base.kill(target, packageName);
        return StringUtils.isBlank(output);
    }

    public boolean kill(String packageName) throws Exception {
        return kill(null, packageName);
    }

    /**
     * Kill all background processes.
     *
     * @param target
     * @return
     * @throws Exception
     */
    public boolean killAll(Target target) throws Exception {
        String output = base.killAll(target);
        return StringUtils.isBlank(output);
    }

    public boolean killAll() throws Exception {
        return killAll(null);
    }

    /**
     * Start an Activity specified by intent.
     *
     * @param target
     * @param wait
     * @param repeat
     * @param stop
     * @param intent
     * @return
     * @throws Exception
     */
    public boolean startActivity(Target target, boolean debug, boolean wait, int repeat, boolean stop, Intent intent) throws Exception {
        String output = base.startActivity(target, debug, wait, repeat, stop, intent);
        List lines = OutputUtil.readLines(output);
        if (!lines.isEmpty()) {
            if (stop) {
                if (!StringUtils.startsWith(lines.get(0), STOPPING_KEY_WORD)) {
                    return false;
                }
                lines.remove(0);
            }
            if (!lines.isEmpty()) {
                if (!StringUtils.startsWith(lines.get(0), STARTING_KEY_WORD)) {
                    return false;
                }
                lines.remove(0);
                if (wait) {
                    if (!lines.isEmpty() && !StringUtils.equals(lines.get(0), STATUS_OK_KEY_WORD)) {
                        return false;
                    }
                }
                if (repeat > 1) {
                    int startCount = 0;
                    int stopCount = 0;
                    for (String line : lines) {
                        if (StringUtils.startsWith(line, STARTING_KEY_WORD)) {
                            startCount++;
                        } else if (StringUtils.startsWith(line, STOPPING_KEY_WORD)) {
                            stopCount++;
                        }
                    }
                    return startCount == repeat - 1 && (!stop || stopCount == repeat - 1);
                }

            }
            return true;
        }

        return false;
    }

    public boolean startActivity(boolean debug, boolean wait, int repeat, boolean stop, Intent intent) throws Exception {
        return startActivity(null, debug, wait, repeat, stop, intent);
    }

    /**
     * Start the Service specified by intent.
     *
     * @param target
     * @param intent
     * @return
     * @throws Exception
     */
    public boolean startService(Target target, Intent intent) throws Exception {
        String output = base.startService(target, intent);
        return StringUtils.startsWith(output, Consts.Output.STARTING_SERVICE_KEY_WORD);
    }

    public boolean startService(Intent intent) throws Exception {
        return startService(null, intent);
    }

    /**
     * Issue a broadcast intent.
     *
     * @param target
     * @param intent
     * @return
     * @throws Exception
     */
    public boolean broadcast(Target target, Intent intent) throws Exception {
        String output = base.broadcast(target, intent);
        return StringUtils.startsWith(output, Consts.Output.BROADCASTING_KEY_WORD);
    }

    public boolean broadcast(Intent intent) throws Exception {
        return broadcast(null, intent);
    }

    /**
     * Print the given intent specification as a URI.
     *
     * @param intent
     * @return
     * @throws Exception
     */
    public String toUri(Intent intent) throws Exception {
        return base.toUri(intent);
    }

    /**
     * Print the given intent specification as an intent: URI.
     *
     * @param intent
     * @return
     * @throws Exception
     */
    public String toIntentUri(Intent intent) throws Exception {
        return base.toIntentUri(intent);
    }

}