/*
 * Copyright (C) 2014 Dominik Schürmann <dominik@dominikschuermann.de>
 *
 * 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 org.sufficientlysecure.keychain.helper;

import android.accounts.Account;
import android.accounts.AccountManager;
import android.content.Context;
import android.util.Patterns;

import java.util.ArrayList;
import java.util.HashSet;
import java.util.List;
import java.util.Set;

public class ContactHelper {

    public static final List<String> getMailAccounts(Context context) {
        final Account[] accounts = AccountManager.get(context).getAccounts();
        final Set<String> emailSet = new HashSet<String>();
        for (Account account : accounts) {
            if (Patterns.EMAIL_ADDRESS.matcher(account.name).matches()) {
                emailSet.add(account.name);
            }
        }
        return new ArrayList<String>(emailSet);
    }
}