/*
 * Copyright (C) 2010 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.providers.contacts;

import com.google.android.collect.Maps;
import com.google.android.collect.Sets;

import android.accounts.Account;

import java.util.HashMap;
import java.util.HashSet;
import java.util.Map.Entry;
import java.util.Set;

/**
 * Accumulates information for an entire transaction. {@link ContactsProvider2} consumes
 * it at commit time.
 */
public class TransactionContext  {

    private HashMap<Long, Account> mInsertedRawContacts = Maps.newHashMap();
    private HashSet<Long> mUpdatedRawContacts = Sets.newHashSet();
    private HashSet<Long> mDirtyRawContacts = Sets.newHashSet();
    private HashMap<Long, Object> mUpdatedSyncStates = Maps.newHashMap();

    public void rawContactInserted(long rawContactId, Account account) {
        mInsertedRawContacts.put(rawContactId, account);
    }

    public void rawContactUpdated(long rawContactId) {
        mUpdatedRawContacts.add(rawContactId);
    }

    public void markRawContactDirty(long rawContactId) {
        mDirtyRawContacts.add(rawContactId);
    }

    public void syncStateUpdated(long rowId, Object data) {
        mUpdatedSyncStates.put(rowId, data);
    }

    public Set<Long> getInsertedRawContactIds() {
        return mInsertedRawContacts.keySet();
    }

    public Set<Long> getDirtyRawContactIds() {
        return mDirtyRawContacts;
    }

    public Set<Long> getUpdatedRawContactIds() {
        return mUpdatedRawContacts;
    }

    public Set<Entry<Long, Object>> getUpdatedSyncStates() {
        return mUpdatedSyncStates.entrySet();
    }

    public Account getAccountForRawContact(long rawContactId) {
        return mInsertedRawContacts.get(rawContactId);
    }

    public boolean isNewRawContact(long rawContactId) {
        return mInsertedRawContacts.containsKey(rawContactId);
    }

    public void clear() {
        mInsertedRawContacts.clear();
        mUpdatedRawContacts.clear();
        mUpdatedSyncStates.clear();
        mDirtyRawContacts.clear();
    }
}