MHESpeechService.cpp

/*
Copyright (c) 2016 Teka101

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/

#include <boost/date_time/posix_time/posix_time.hpp>
#include <boost/iostreams/device/file_descriptor.hpp>
#include <boost/iostreams/stream.hpp>
#include <boost/locale.hpp>
#include <boost/foreach.hpp>
#include <boost/lexical_cast.hpp>
#include <boost/regex.hpp>
#include <boost/algorithm/string/predicate.hpp>
#include <log4cplus/loggingmacros.h>
#include <errno.h>
#include <fstream>
#include <stdio.h>
#include <string.h>
#include "MHESpeechService.h"

MHESpeechService::MHESpeechService(SpeechRecognize *sr, const std::string &speechLang) : _sr(sr), _locale(speechLang.c_str())
{
    _log = log4cplus::Logger::getInstance(LOG4CPLUS_TEXT("MHESpeechService"));
    _orders.push_back(new sSpeechExprOrder(boost::regex("^TO_LEAVE ([0-9]+) DURATION_DAY$", boost::regex::perl), boost::bind(&MHESpeechService::executeLeaveHouseInDay, this, _1, _2, _3)));
    _orders.push_back(new sSpeechExprOrder(boost::regex("^TO_LEAVE ([0-9]+) DURATION_WEEK$", boost::regex::perl), boost::bind(&MHESpeechService::executeLeaveHouseInWeek, this, _1, _2, _3)));
    _orders.push_back(new sSpeechExprOrder(boost::regex("^TO_LEAVE ([0-9]+) DURATION_MONTH$", boost::regex::perl), boost::bind(&MHESpeechService::executeLeaveHouseInMonth, this, _1, _2, _3)));
    _orders.push_back(new sSpeechExprOrder(boost::regex("^HOW HOUSE$", boost::regex::perl), boost::bind(&MHESpeechService::executeHowHouse, this, _1, _2, _3)));
    _orders.push_back(new sSpeechExprOrder(boost::regex("^TO_WATCH ([0-9]+)$", boost::regex::perl), boost::bind(&MHESpeechService::executeWatchTV, this, _1, _2, _3)));
    _orders.push_back(new sSpeechExprOrder(boost::regex("^GOOD NIGHT$", boost::regex::perl), boost::bind(&MHESpeechService::executeGoodNight, this, _1, _2, _3)));
    _orders.push_back(new sSpeechExprOrder(boost::regex("^DIAGNOSTIC$", boost::regex::perl), boost::bind(&MHESpeechService::executeDiagnostic, this, _1, _2, _3)));
    _orders.push_back(new sSpeechExprOrder(boost::regex("^(TO_TURN_ON|TO_TURN_OFF) DEVICE_IDX_([0-9]+)$", boost::regex::perl), boost::bind(&MHESpeechService::executeSetDeviceStatus, this, _1, _2, _3)));
}

MHESpeechService::~MHESpeechService()
{
    BOOST_FOREACH(sSpeechExprOrder *sr, _orders)
    {
        delete sr;
    }
}

sSpeechOrder MHESpeechService::parseAndExecute(const MHEWeb *web, const std::string &sentence)
{
    sSpeechOrder ret;

    ret.isSuccess = false;
    if (_sr == NULL)
    {
        ret.debug = sentence;
        ret.result = "No speech service installed.";
    }
    else
    {
        std::string order = _sr->parse(sentence);
        bool hasFoundOrder = false;

        ret.debug = order;
        BOOST_FOREACH(sSpeechExprOrder *ser, _orders)
        {
            boost::cmatch what;

            if (boost::regex_match(order.c_str(), what, ser->expression))
            {
                hasFoundOrder = true;
                ret.isSuccess = ser->method(web, &ret, what);
                break;
            }
        }
        if (!hasFoundOrder)
        {
            std::string pluginFile;

            if (_sr->getPlugin(order, pluginFile))
            {
                hasFoundOrder = true;
                ret.isSuccess = executePlugin(order, pluginFile, &ret);
            }
        }
        if (!hasFoundOrder)
            ret.result = _sr->getResponse("UNKNOWN_ORDER");
        else if (ret.result.length() == 0)
            ret.result = _sr->getResponse(ret.isSuccess ? "OK" : "KO");
    }
    LOG4CPLUS_DEBUG(_log, LOG4CPLUS_TEXT("parseAndExecute: ret='" << (std::string)ret));
    return ret;
}

bool MHESpeechService::executeLeaveHouse(const MHEWeb *web, sSpeechOrder *result, int nbDays)
{
    boost::posix_time::ptime now = boost::posix_time::second_clock::local_time();
    boost::gregorian::date_duration dd(nbDays);
	boost::gregorian::date currentDate = now.date();
	boost::posix_time::time_duration currentTime = now.time_of_day();
    long dateStartYYYYMMDDHHMM, dateEndYYYYMMDDHHMM;
    int conditionId = nbDays > 8 ? 6 : 5;

	dateStartYYYYMMDDHHMM = ((long)currentDate.year() * 10000L + (long)currentDate.month() * 100L + (long)currentDate.day()) * 10000L + (currentTime.hours() * 100L + currentTime.minutes());
    currentDate = currentDate + dd;
    dateEndYYYYMMDDHHMM = ((long)currentDate.year() * 10000L + (long)currentDate.month() * 100L + (long)currentDate.day()) * 10000L + (currentTime.hours() * 100L + currentTime.minutes());
    LOG4CPLUS_DEBUG(_log, LOG4CPLUS_TEXT("executeLeaveHouse... nbDays=" << nbDays << " conditionId=" << conditionId << " dateStartYYYYMMDDHHMM=" << dateStartYYYYMMDDHHMM << " dateEndYYYYMMDDHHMM=" << dateEndYYYYMMDDHHMM));
    return web->getDataBase()->addConditionDate(conditionId, dateStartYYYYMMDDHHMM, dateEndYYYYMMDDHHMM);
}

bool MHESpeechService::executeLeaveHouseInDay(const MHEWeb *web, sSpeechOrder *result, boost::cmatch &m)
{
    return executeLeaveHouse(web, result, boost::lexical_cast<int>(m[1]));
}

bool MHESpeechService::executeLeaveHouseInWeek(const MHEWeb *web, sSpeechOrder *result, boost::cmatch &m)
{
    return executeLeaveHouse(web, result, boost::lexical_cast<int>(m[1]) * 7);
}

bool MHESpeechService::executeLeaveHouseInMonth(const MHEWeb *web, sSpeechOrder *result, boost::cmatch &m)
{
    return executeLeaveHouse(web, result, boost::lexical_cast<int>(m[1]) * 30);
}

bool MHESpeechService::executeHowHouse(const MHEWeb *web, sSpeechOrder *result, boost::cmatch &m)
{
    std::vector<MHEDevice*> devices = web->getHardDevContainer()->getDevices();
    std::stringstream ss;
    bool isFirst = true;

    BOOST_FOREACH(MHEDevice *dev, devices)
    {
        if (!dev->isHidden() && dev->getType() == devTempHum)
        {
            std::stringstream localizedTemperature;
            std::string msg = _sr->getResponse("howHouse_temperature");

            localizedTemperature.imbue(_locale);
            localizedTemperature << dev->getTemperature();
            boost::replace_all(msg, "%name%", dev->getName());
            boost::replace_all(msg, "%temperature%", localizedTemperature.str());
            if (!isFirst)
                ss << ' ';
            ss << msg;
            isFirst = false;
        }
    }
    result->result = ss.str();
    return true;
}

bool MHESpeechService::executeWatchTV(const MHEWeb *web, sSpeechOrder *result, boost::cmatch &m)
{
    std::vector<MHEDevice*> devices = web->getHardDevContainer()->getDevices();
    std::string channelId = m[1];
    bool status = false;

    BOOST_FOREACH(MHEDevice *dev, devices)
    {
        if (!dev->isHidden() && dev->getType() == devTV)
            status = dev->sendCommand("channel", channelId, NULL);
    }
    return status;
}

bool MHESpeechService::executeGoodNight(const MHEWeb *web, sSpeechOrder *result, boost::cmatch &m)
{
    std::vector<MHEDevice*> devices = web->getHardDevContainer()->getDevices();
    std::stringstream ss;
    bool isFirst = true;

    BOOST_FOREACH(MHEDevice *dev, devices)
    {
        if (!dev->isHidden() && dev->getType() == devTV)
            if (dev->setStatus(false))
            {
                if (!isFirst)
                    ss << ' ';
                ss << _sr->getResponse("STOP_TV");
                isFirst = false;
            }
    }
    if (!isFirst)
        ss << ' ';
    ss << _sr->getResponse("GOOD_NIGHT");
    result->result = ss.str();
    return true;
}

bool MHESpeechService::executeDiagnostic(const MHEWeb *web, sSpeechOrder *result, boost::cmatch &m)
{
    std::string msg = _sr->getResponse("diagnostic");
    int firstUsed, firstIdle;
    int memFree, memTotal;

    if (executeDiagnosticReadCPU(firstUsed, firstIdle))
    {
	int secondUsed, secondIdle;

        sleep(1);
        if (executeDiagnosticReadCPU(secondUsed, secondIdle))
        {
            int diffUsed = secondUsed - firstUsed;
            int diffIdle = secondIdle - firstIdle;
            std::stringstream localizedCPU;
            int cpuUsage = diffUsed * 100 / (diffUsed + diffIdle);

            localizedCPU.imbue(_locale);
            localizedCPU << cpuUsage;
            boost::replace_all(msg, "%cpu%", localizedCPU.str());
            LOG4CPLUS_DEBUG(_log, LOG4CPLUS_TEXT("executeDiagnostic: cpu=" << cpuUsage << "% diffUsed=" << diffUsed << " diffIdle=" << diffIdle));
        }
    }
    if (executeDiagnosticReadMemory(memFree, memTotal))
    {
        std::stringstream localizedMEM;
        int memUsage = memFree * 100 / memTotal;

        localizedMEM.imbue(_locale);
        localizedMEM << memUsage;
        boost::replace_all(msg, "%mem%", localizedMEM.str());
        LOG4CPLUS_DEBUG(_log, LOG4CPLUS_TEXT("executeDiagnostic: mem=" << memUsage << "% memFree=" << memFree << " memTotal=" << memTotal));
    }
    result->result = msg;
    return true;
}

bool MHESpeechService::executeDiagnosticReadCPU(int &totalUsed, int &totalIdle)
{
    std::ifstream fProc("/proc/stat");

    if (fProc.good())
    {
        boost::regex expression("^cpu[\\t ]+([0-9]+) ([0-9]+) ([0-9]+) ([0-9]+).*$", boost::regex::perl);
        boost::cmatch what;
        std::string line;

        while(std::getline(fProc, line))
        {
            if (boost::regex_match(line.c_str(), what, expression))
            {
                int userMode = boost::lexical_cast<int>(what[1]);
                int userNicedMode = boost::lexical_cast<int>(what[2]);
                int systemMode = boost::lexical_cast<int>(what[3]);
                int idleTask = boost::lexical_cast<int>(what[4]);

                totalUsed = userMode + userNicedMode + systemMode;
                totalIdle = idleTask;
                LOG4CPLUS_DEBUG(_log, LOG4CPLUS_TEXT("executeDiagnosticReadCPU: totalUsed=" << totalUsed << " totalIdle=" << totalIdle));
                return true;
            }
        }
    }
    else
        LOG4CPLUS_ERROR(_log, LOG4CPLUS_TEXT("executeDiagnosticReadCPU: unable to open /proc/stat"));
    return false;
}

bool MHESpeechService::executeDiagnosticReadMemory(int &memFree, int &memTotal)
{
    std::ifstream fProc("/proc/meminfo");

    memFree = 0;
    memTotal = 0;
    if (fProc.good())
    {
        boost::regex expressionMemFree("^MemFree:[\\t ]+([0-9]+) kB$", boost::regex::perl);
        boost::regex expressionMemTotal("^MemTotal:[\\t ]+([0-9]+) kB$", boost::regex::perl);
        boost::cmatch what;
        std::string line;

        while(std::getline(fProc, line))
        {
            if (boost::regex_match(line.c_str(), what, expressionMemFree))
                memFree = boost::lexical_cast<int>(what[1]);
            else if (boost::regex_match(line.c_str(), what, expressionMemTotal))
                memTotal = boost::lexical_cast<int>(what[1]);
        }
    }
    else
        LOG4CPLUS_ERROR(_log, LOG4CPLUS_TEXT("executeDiagnosticReadMemory: unable to open /proc/meminfo"));
    return (memFree > 0 && memTotal > 0);
}

bool MHESpeechService::executePlugin(const std::string &order, const std::string &pluginFile, sSpeechOrder *result)
{
    std::stringstream ssPlugins;
    FILE *fh;

    ssPlugins << "plugins/" << pluginFile;
    fh = popen(ssPlugins.str().c_str(), "r");
    if (fh == NULL)
        LOG4CPLUS_ERROR(_log, LOG4CPLUS_TEXT("executePlugin - popen(" << ssPlugins.str() << ") failed: " << strerror(errno)));
    else
    {
        boost::iostreams::file_descriptor_source fdSource(fileno(fh), boost::iostreams::never_close_handle);
        boost::iostreams::stream<boost::iostreams::file_descriptor_source> stream(fdSource);
        std::stringstream ssRes;
        std::string line;
        int execReturn;

        LOG4CPLUS_DEBUG(_log, LOG4CPLUS_TEXT("executePlugin - popen() for command: " << ssPlugins.str()));
        while (std::getline(stream, line))
            ssRes << line;
        execReturn = pclose(fh);
        LOG4CPLUS_DEBUG(_log, LOG4CPLUS_TEXT("executePlugin - Exec return: " << execReturn));
        result->result = ssRes.str();
        return (execReturn == 0);
    }
    return false;
}

bool MHESpeechService::executeSetDeviceStatus(const MHEWeb *web, sSpeechOrder *result, boost::cmatch &m)
{
    std::string order = m[1];
    bool activate = boost::equals(order, "TO_TURN_ON");
    int deviceIdx = boost::lexical_cast<int>(m[2]);
    MHEDevice *dev = web->getHardDevContainer()->getDeviceById(deviceIdx);

    LOG4CPLUS_DEBUG(_log, LOG4CPLUS_TEXT("executeSetDeviceStatus: activate=" << (activate ? "true" : "false") << " deviceIdx=" << deviceIdx));
    if (dev != NULL)
        result->isSuccess = dev->setStatus(activate);
    return result->isSuccess;
}