/* Copyright (C) 2015 J.F.Dockes
* 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.,
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#include "ohsndrcv.hxx"
#include "libupnpp/log.hxx"
#include "libupnpp/base64.hxx"
#include "execmd.h"
#include "upmpd.hxx"
#include "mpdcli.hxx"
#include "upmpdutils.hxx"
#include "ohreceiver.hxx"
#include "ohplaylist.hxx"
using namespace std;
using namespace std::placeholders;
using namespace UPnPP;
static const string makesendercmd("scmakempdsender.py");
static int mpdport = 6700;
class SenderReceiver::Internal {
public:
Internal(UpMpd *dv)
: dev(dv), mpd(0), origmpd(0), cmd(0) {
}
~Internal() {
clear();
}
void clear() {
if (dev && origmpd) {
dev->m_mpdcli = origmpd;
origmpd = 0;
if (dev->m_ohrcv) {
dev->m_ohrcv->iStop();
}
if (dev->m_ohpl) {
dev->m_ohpl->refreshState();
}
}
delete mpd;
delete cmd;
}
UpMpd *dev;
MPDCli *mpd;
MPDCli *origmpd;
ExecCmd *cmd;
string uri;
string meta;
};
SenderReceiver::SenderReceiver(UpMpd *dev)
{
m = new Internal(dev);
}
SenderReceiver::~SenderReceiver()
{
if (m)
delete m;
}
static bool copyMpd(MPDCli *src, MPDCli *dest, int seekms)
{
if (!src || !dest) {
LOGERR("copyMpd: src or dest is null\n");
return false;
}
// Playing state. If playing is stopped at this point elapsedms is
// lost which is why we get it as a parameter
MpdStatus mpds = src->getStatus();
if (seekms < 0) {
seekms = mpds.songelapsedms;
}
// Playlist from source mpd
vector<UpSong> playlist;
if (!src->getQueueData(playlist)) {
LOGERR("copyMpd: can't retrieve current playlist\n");
return false;
}
// Copy the playlist to dest
dest->clearQueue();
for (unsigned int i = 0; i < playlist.size(); i++) {
if (dest->insert(playlist[i].uri, i, playlist[i]) < 0) {
LOGERR("copyMpdt: mpd->insert failed\n");
return false;
}
}
dest->play(mpds.songpos);
dest->setVolume(mpds.volume);
dest->seek(seekms/1000);
return true;
}
bool SenderReceiver::start(int seekms)
{
LOGDEB("SenderReceiver::start. seekms " << seekms << endl);
if (!m->dev || !m->dev->m_ohpl) {
LOGERR("SenderReceiver::start: no ohpl\n");
return false;
}
// Stop MPD Play (normally already done)
m->dev->m_mpdcli->stop();
if (!m->cmd) {
// First time: Start fifo MPD and Sender
m->cmd = new ExecCmd();
vector<string> args;
args.push_back("-p");
args.push_back(SoapHelp::i2s(mpdport));
args.push_back("-f");
args.push_back(m->dev->m_friendlyname);
m->cmd->startExec(makesendercmd, args, false, true);
string output;
if (!m->cmd->getline(output)) {
LOGERR("SenderReceiver::start: makesender command failed\n");
m->clear();
return false;
}
LOGDEB("SenderReceiver::start got [" << output << "] from script\n");
// Output is like [Ok mpdport URI base64-encoded-uri METADATA b64-meta]
vector<string> toks;
stringToTokens(output, toks);
if (toks.size() != 6 || toks[0].compare("Ok")) {
LOGERR("SenderReceiver::start: bad output from script: " << output
<< endl);
m->clear();
return false;
}
m->uri = base64_decode(toks[3]);
m->meta = base64_decode(toks[5]);
// Connect to the new MPD
m->mpd = new MPDCli("localhost", mpdport);
if (!m->mpd || !m->mpd->ok()) {
LOGERR("SenderReceiver::start: can't connect to new MPD\n");
m->clear();
return false;
}
}
// Start our receiver
if (!m->dev->m_ohrcv->iSetSender(m->uri, m->meta) ||
!m->dev->m_ohrcv->iPlay()) {
m->clear();
return false;
}
// Copy mpd state
copyMpd(m->dev->m_mpdcli, m->mpd, seekms);
m->origmpd = m->dev->m_mpdcli;
m->dev->m_mpdcli = m->mpd;
return true;
}
bool SenderReceiver::stop()
{
LOGDEB("SenderReceiver::stop()\n");
// Do we want to transfer the playlist back ? Probably we do.
if (!m->dev || !m->origmpd || !m->mpd || !m->dev->m_ohpl ||
!m->dev->m_ohrcv) {
LOGERR("SenderReceiver::stop: bad state: dev/origmpd/mpd null\n");
return false;
}
copyMpd(m->mpd, m->origmpd, -1);
m->mpd->stop();
m->dev->m_mpdcli = m->origmpd;
m->origmpd = 0;
m->dev->m_ohrcv->iStop();
m->dev->m_ohpl->refreshState();
return true;
}