#include <initializer_list>

#include <QCoreApplication>

#include <getoptPlusPlus/getoptpp.h>

#include "specialoptions.h"
#include "connection.h"


using namespace vlofgren;

int count(std::initializer_list<bool> values)
{
    int count = 0;
    for (auto& value : values) {
        if (value)
            count++;
    }
    return count;
}

int main(int argc, const char * argv[])
{
    // some settings
    QString defaultServerAddress = "localhost:19444";
    int defaultPriority = 100;

    OptionsParser optionParser("Simple application to send a command to hyperion using the Json interface");
    ParameterSet & parameters = optionParser.getParameters();
    StringParameter    & argAddress    = parameters.add<StringParameter>   ('a', "address"   , QString("Set the address of the hyperion server [default: %1]").arg(defaultServerAddress).toAscii().constData());
    IntParameter       & argPriority   = parameters.add<IntParameter>      ('p', "priority"  , QString("Use to the provided priority channel (the lower the number, the higher the priority) [default: %1]").arg(defaultPriority).toAscii().constData());
    IntParameter       & argDuration   = parameters.add<IntParameter>      ('d', "duration"  , "Specify how long the leds should be switched on in millseconds [default: infinity]");
    ColorParameter     & argColor      = parameters.add<ColorParameter>    ('c', "color"     , "Set all leds to a constant color (either RRGGBB hex value or a color name)");
    ImageParameter     & argImage      = parameters.add<ImageParameter>    ('i', "image"     , "Set the leds to the colors according to the given image file");
    SwitchParameter<>  & argList       = parameters.add<SwitchParameter<> >('l', "list"      , "List all priority channels which are in use");
    SwitchParameter<>  & argClear      = parameters.add<SwitchParameter<> >('x', "clear"     , "Clear data for the priority channel provided by the -p option");
    SwitchParameter<>  & argClearAll   = parameters.add<SwitchParameter<> >(0x0, "clear-all" , "Clear data for all priority channels");
    TransformParameter & argGamma      = parameters.add<TransformParameter>('g', "gamma"     , "Set the gamma of the leds (requires 3 values)");
    TransformParameter & argThreshold  = parameters.add<TransformParameter>('t', "threshold" , "Set the threshold of the leds (requires 3 space seperated values between 0.0 and 1.0)");
    TransformParameter & argBlacklevel = parameters.add<TransformParameter>('b', "blacklevel", "Set the blacklevel of the leds (requires 3 space seperated values which are normally between 0.0 and 1.0)");
    TransformParameter & argWhitelevel = parameters.add<TransformParameter>('w', "whitelevel", "Set the whitelevel of the leds (requires 3 space seperated values which are normally between 0.0 and 1.0)");
    SwitchParameter<>  & argPrint      = parameters.add<SwitchParameter<> >(0x0, "print"     , "Print the json input and output messages on stdout");
    SwitchParameter<>  & argHelp       = parameters.add<SwitchParameter<> >('h', "help"      , "Show this help message and exit");

    argAddress.setDefault(defaultServerAddress.toStdString());
    argPriority.setDefault(defaultPriority);
    argDuration.setDefault(-1);

    try
    {
        optionParser.parse(argc, argv);
    }
    catch (const std::runtime_error & e)
    {
        std::cerr << e.what() << std::endl;
        return 1;
    }

    // check if we need to display the usage
    if (argHelp.isSet())
    {
        optionParser.usage();
        return 0;
    }

    // check if a color transform is set
    bool colorTransform = argThreshold.isSet() || argGamma.isSet() || argBlacklevel.isSet() || argWhitelevel.isSet();

    // check if exactly one command was given
    int commandCount = count({argColor.isSet(), argImage.isSet(), argList.isSet(), argClear.isSet(), argClearAll.isSet(), colorTransform});
    if (commandCount != 1)
    {
        if (commandCount == 0)
        {
            std::cerr << "No command found. Provide one of the following options:" << std::endl;
        }
        else
        {
            std::cerr << "Multiple commands found. Provide one of the following options:" << std::endl;
        }
        std::cerr << "  " << argColor.usageLine() << std::endl;
        std::cerr << "  " << argImage.usageLine() << std::endl;
        std::cerr << "  " << argList.usageLine() << std::endl;
        std::cerr << "  " << argClear.usageLine() << std::endl;
        std::cerr << "  " << argClearAll.usageLine() << std::endl;
        std::cerr << "or one or more of the color transformations:" << std::endl;
        std::cerr << "  " << argThreshold.usageLine() << std::endl;
        std::cerr << "  " << argGamma.usageLine() << std::endl;
        std::cerr << "  " << argBlacklevel.usageLine() << std::endl;
        std::cerr << "  " << argWhitelevel.usageLine() << std::endl;
        return 1;
    }

    Connection connection(argAddress.getValue(), argPrint.isSet());

    // now execute the given command
    if (argColor.isSet())
    {
        connection.setColor(argColor.getValue(), argPriority.getValue(), argDuration.getValue());
    }
    else if (argImage.isSet())
    {
        connection.setImage(argImage.getValue(), argPriority.getValue(), argDuration.getValue());
    }
    else if (argList.isSet())
    {
        connection.listPriorities();
    }
    else if (argClear.isSet())
    {
        connection.clear(argPriority.getValue());
    }
    else if (argClearAll.isSet())
    {
        connection.clearAll();
    }
    else if (colorTransform)
    {
    }

    return 0;
}