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/*
* Copyright (C) 2015 Christian Mollekopf <chrigi_1@fastmail.fm>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the
* Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "threadindexer.h"
#include "typeindex.h"
#include "log.h"
#include "utils.h"
using namespace Sink;
using namespace Sink::ApplicationDomain;
void ThreadIndexer::updateThreadingIndex(const ApplicationDomain::ApplicationDomainType &entity, Sink::Storage::DataStore::Transaction &transaction)
{
auto messageId = entity.getProperty(Mail::MessageId::name);
auto parentMessageId = entity.getProperty(Mail::ParentMessageId::name);
if (messageId.toByteArray().isEmpty()) {
SinkWarning() << "Found an email without messageId. This is illegal and threading will break. Entity id: " << entity.identifier();
}
SinkTrace() << "Indexing thread. Entity: " << entity.identifier() << "Messageid: " << messageId << "ParentMessageId: " << parentMessageId;
//check if a child already registered our thread.
QVector<QByteArray> thread = index().secondaryLookup<Mail::MessageId, Mail::ThreadId>(messageId);
if (!thread.isEmpty() && parentMessageId.isValid()) {
//A child already registered our thread so we merge the childs thread
//* check if we have a parent thread, if not just continue as usual
//* get all messages that have the same threadid as the child
//* switch all to the parents thread
Q_ASSERT(!parentMessageId.toByteArray().isEmpty());
auto parentThread = index().secondaryLookup<Mail::MessageId, Mail::ThreadId>(parentMessageId);
if (!parentThread.isEmpty()) {
auto childThreadId = thread.first();
auto parentThreadId = parentThread.first();
//Can happen if the message is already available locally.
if (childThreadId == parentThreadId) {
//Nothing to do
return;
}
SinkTrace() << "Merging child thread: " << childThreadId << " into parent thread: " << parentThreadId;
//Ensure this mail ends up in the correct thread
index().unindex<Mail::MessageId, Mail::ThreadId>(messageId, childThreadId, transaction);
//We have to copy the id here, otherwise it doesn't survive the subsequent writes
thread = QVector<QByteArray>() << QByteArray{parentThreadId.data(), parentThreadId.size()};
//Merge all child messages into the correct thread
auto childThreadMessageIds = index().secondaryLookup<Mail::ThreadId, Mail::MessageId>(childThreadId);
for (const auto &msgId : childThreadMessageIds) {
SinkTrace() << "Merging child message: " << msgId;
index().unindex<Mail::MessageId, Mail::ThreadId>(msgId, childThreadId, transaction);
index().unindex<Mail::ThreadId, Mail::MessageId>(childThreadId, msgId, transaction);
index().index<Mail::MessageId, Mail::ThreadId>(msgId, parentThreadId, transaction);
index().index<Mail::ThreadId, Mail::MessageId>(parentThreadId, msgId, transaction);
}
}
}
//If parent is already available, add to thread of parent
if (thread.isEmpty() && parentMessageId.isValid()) {
thread = index().secondaryLookup<Mail::MessageId, Mail::ThreadId>(parentMessageId);
SinkTrace() << "Found parent: " << thread;
}
if (thread.isEmpty()) {
thread << Sink::createUuid();
SinkTrace() << "Created a new thread: " << thread;
}
Q_ASSERT(!thread.isEmpty());
if (parentMessageId.isValid()) {
Q_ASSERT(!parentMessageId.toByteArray().isEmpty());
//Register parent with thread for when it becomes available
index().index<Mail::MessageId, Mail::ThreadId>(parentMessageId, thread.first(), transaction);
}
index().index<Mail::MessageId, Mail::ThreadId>(messageId, thread.first(), transaction);
index().index<Mail::ThreadId, Mail::MessageId>(thread.first(), messageId, transaction);
}
void ThreadIndexer::add(const ApplicationDomain::ApplicationDomainType &entity)
{
updateThreadingIndex(entity, transaction());
}
void ThreadIndexer::modify(const ApplicationDomain::ApplicationDomainType &oldEntity, const ApplicationDomain::ApplicationDomainType &newEntity)
{
//FIXME Implement to support thread changes.
//Emails are immutable (for everything threading relevant), so we don't care about it so far.
}
void ThreadIndexer::remove(const ApplicationDomain::ApplicationDomainType &entity)
{
auto messageId = entity.getProperty(Mail::MessageId::name);
auto thread = index().secondaryLookup<Mail::MessageId, Mail::ThreadId>(messageId);
if (thread.isEmpty()) {
SinkWarning() << "Failed to find the threadId for the entity " << entity.identifier() << messageId;
}
index().unindex<Mail::MessageId, Mail::ThreadId>(messageId.toByteArray(), thread.first(), transaction());
index().unindex<Mail::ThreadId, Mail::MessageId>(thread.first(), messageId.toByteArray(), transaction());
}
QMap<QByteArray, int> ThreadIndexer::databases()
{
return {{"mail.index.messageIdthreadId", 1},
{"mail.index.threadIdmessageId", 1}};
}
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