tasks/app/src/main/java/com/todoroo/astrid/alarms/AlarmTaskRepeatListener.java

/**
 * Copyright (c) 2012 Todoroo Inc
 *
 * See the file "LICENSE" for the full license governing this code.
 */
package com.todoroo.astrid.alarms;

import android.content.Context;
import android.content.Intent;

import com.todoroo.andlib.utility.DateUtilities;
import com.todoroo.astrid.api.AstridApiConstants;

import org.tasks.injection.BroadcastComponent;
import org.tasks.injection.InjectingBroadcastReceiver;

import java.util.LinkedHashSet;
import java.util.Set;

import javax.inject.Inject;

public class AlarmTaskRepeatListener extends InjectingBroadcastReceiver {

    public static void broadcast(Context context, long taskId, long oldDueDate, long newDueDate) {
        Intent intent = new Intent(context, AlarmTaskRepeatListener.class);
        intent.putExtra(AstridApiConstants.EXTRAS_TASK_ID, taskId);
        intent.putExtra(AstridApiConstants.EXTRAS_OLD_DUE_DATE, oldDueDate);
        intent.putExtra(AstridApiConstants.EXTRAS_NEW_DUE_DATE, newDueDate);
        context.sendBroadcast(intent);
    }

    @Inject AlarmService alarmService;

    @Override
    public void onReceive(Context context, Intent intent) {
        super.onReceive(context, intent);

        long taskId = intent.getLongExtra(AstridApiConstants.EXTRAS_TASK_ID, -1);
        if(taskId == -1) {
            return;
        }

        long oldDueDateExtra = intent.getLongExtra(AstridApiConstants.EXTRAS_OLD_DUE_DATE, 0);
        final long oldDueDate = oldDueDateExtra == 0 ? DateUtilities.now() : oldDueDateExtra;
        final long newDueDate = intent.getLongExtra(AstridApiConstants.EXTRAS_NEW_DUE_DATE, -1);

        if(newDueDate <= 0 || newDueDate <= oldDueDate) {
            return;
        }

        final Set<Long> alarms = new LinkedHashSet<>();
        alarmService.getAlarms(taskId, metadata -> alarms.add(metadata.getValue(AlarmFields.TIME) + (newDueDate - oldDueDate)));
        if (!alarms.isEmpty()) {
            alarmService.synchronizeAlarms(taskId, alarms);
        }
    }

    @Override
    protected void inject(BroadcastComponent component) {
        component.inject(this);
    }
}