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#include <QtCore/QStringList>
#include "clientagent.h"
#include "serveragent.h"
#include "distfolder.h"
DistFolder::DistFolder(const QUuid& uuid, const QString& localPath, QObject *parent) :
QObject(parent), _uuid(uuid), _localPath(localPath),
_mtime(), _mtimeChanged(false),
_watcher(new Watcher(localPath, this)),
_server(new Server(this)),
_discoverer(new Discoverer(uuid, _server->serverPort(), QString("Files on %1").arg(_localPath.canonicalPath()), this)),
_syncFlags(Agent::SYNC_NORMAL),
_numAgents(0)
{
Q_ASSERT(_localPath.isReadable());
connect(_watcher, SIGNAL(pathAdded(QString)), SLOT(handlePathAdded(QString)));
connect(_watcher, SIGNAL(pathChanged(QString)), SLOT(handlePathChanged(QString)));
connect(_watcher, SIGNAL(pathRemoved(QString)), SLOT(handlePathRemoved(QString)));
updateLastModTime();
connect(_discoverer, SIGNAL(foundMoreRecentHost(QHostAddress,uint,QDateTime)),
SLOT(handleMoreRecentHost(QHostAddress,uint,QDateTime)));
connect(_server, SIGNAL(newConnection()), SLOT(handleNewConnection()));
qDebug() << "Ready Folder UUID:" << _uuid;
}
bool DistFolder::readOnlySync() const
{
return _syncFlags & Agent::SYNC_READ_ONLY;
}
void DistFolder::setReadOnlySync(bool read_only)
{
if (read_only) {
qDebug() << "Enabling read only sync";
_syncFlags |= Agent::SYNC_READ_ONLY;
} else {
_syncFlags &= ~Agent::SYNC_READ_ONLY;
}
}
bool DistFolder::pullMode() const
{
return _syncFlags & Agent::SYNC_PULL;
}
void DistFolder::setPullMode(bool pull_mode)
{
if (pull_mode) {
qDebug() << "Enabling pull sync";
_syncFlags |= Agent::SYNC_PULL;
} else {
_syncFlags &= ~Agent::SYNC_PULL;
}
updateLastModTime();
}
bool DistFolder::compress() const
{
return _syncFlags & Agent::SYNC_COMPRESS;
}
void DistFolder::setCompress(bool compress)
{
if (compress) {
qDebug() << "Enabling compression";
_syncFlags |= Agent::SYNC_COMPRESS;
} else {
_syncFlags &= ~Agent::SYNC_COMPRESS;
}
}
QDateTime DistFolder::scanLastModTime()
{
return scanLastModTime(_localPath);
}
void DistFolder::updateLastModTime(const QDateTime& dt)
{
QDateTime curMtime = _mtime;
if (pullMode()) {
_mtime = QDateTime::fromTime_t(0); // Force being the puller for the next sync
} else {
if (dt.isNull()) {
_mtime = scanLastModTime();
} else if (dt > _mtime) {
_mtime = dt;
}
}
if (_mtime != curMtime) {
if (_numAgents > 0) {
_mtimeChanged = true;
} else {
_discoverer->setLastModifiedTime(_mtime);
_mtimeChanged = false;
}
}
}
QDateTime DistFolder::scanLastModTime(const QDir& dir)
{
QFileInfoList list = dir.entryInfoList(QDir::Dirs | QDir::Files | QDir::NoDotAndDotDot);
QDateTime max = QFileInfo(dir.absolutePath()).lastModified();
foreach (const QFileInfo &info, list) {
QDateTime mtime;
if (info.isDir()) {
mtime = scanLastModTime(QDir(info.absoluteFilePath()));
} else {
mtime = info.lastModified();
}
if (mtime > max) {
max = mtime;
}
}
return max;
}
void DistFolder::handleNewConnection()
{
qDebug() << "Incoming connection";
ServerAgent *agent =
new ServerAgent(static_cast<QSslSocket*>(_server->nextPendingConnection()),
_localPath, _syncFlags, this);
connect(agent, SIGNAL(destroyed()), SLOT(handleDestroyedAgent()));
_numAgents++;
qDebug() << "Num agents" << _numAgents;
}
void DistFolder::handlePathAdded(const QString &path)
{
QFileInfo info(path);
qDebug() << "added: " << path;
if (info.lastModified() > _mtime) {
updateLastModTime(info.lastModified());
}
}
void DistFolder::handlePathChanged(const QString &path)
{
QFileInfo info(path);
qDebug() << "changed: " << path;
if (info.lastModified() > _mtime) {
updateLastModTime(info.lastModified());
}
}
void DistFolder::handlePathRemoved(const QString &path)
{
QFileInfo info(path);
qDebug() << "removed: " << path;
// Find a parent that has not been removed
const QString base_path = _localPath.absolutePath();
do {
info = QFileInfo(info.absolutePath());
} while (!info.exists() && // Until it exists and as long as we are under the base dir.
info.absoluteFilePath().startsWith(base_path));
if (info.lastModified() > _mtime) {
updateLastModTime(info.lastModified());
}
}
void DistFolder::handleMoreRecentHost(const QHostAddress &address, uint port, const QDateTime &dateTime)
{
Q_UNUSED(dateTime);
if (_numAgents == 0) {
qDebug() << "Trying to connect to" << address.toString() << port;
ClientAgent *agent = new ClientAgent(address, port, _localPath, _syncFlags, this);
connect(agent, SIGNAL(destroyed()), SLOT(handleDestroyedAgent()));
connect(agent, SIGNAL(finished()), SLOT(handleClientFinished()));
_numAgents++;
qDebug() << "Num agents" << _numAgents;
} else {
qDebug() << "Busy but a more recent host was found";
// TODO
}
}
void DistFolder::handleClientFinished()
{
if (pullMode()) {
// Stop pulling once a succesful sync is done
qDebug() << "Stopping pull mode";
setPullMode(false);
}
}
void DistFolder::handleDestroyedAgent()
{
_numAgents--;
qDebug() << "Num agents" << _numAgents;
if (_numAgents == 0) {
// All sync agents have finished
if (_mtimeChanged) {
_discoverer->setLastModifiedTime(_mtime);
_mtimeChanged = false;
}
}
}
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