//
// Created by tangchao on 2022/6/28.
//

#include "Header_Files/configfile.h"

Configfile::Configfile()
{

}

void Configfile::setConfigfilePath(string configfilePath)
{
    m_configfilePath = configfilePath;
}


int Configfile::parseConfigfile()
{
    // Read the file. If there is an error, report it and exit.
    try
    {
        cfg.readFile(m_configfilePath);
    }
    catch(const FileIOException &fioex)
    {
        std::cerr << "I/O error while reading file." << std::endl;
        return(EXIT_FAILURE);
    }
    catch(const ParseException &pex)
    {
        std::cerr << "Parse error at " << pex.getFile() << ":" << pex.getLine()
                  << " - " << pex.getError() << std::endl;
        return(EXIT_FAILURE);
    }
}

bool Configfile::getBin(int &bin)
{
    try
    {
        bin = cfg.lookup("bin");

        return(EXIT_SUCCESS);
    }
    catch(const SettingNotFoundException &nfex)
    {
        cerr << "No 'bin' setting in configuration file." << endl;
        return(EXIT_FAILURE);
    }
}

bool Configfile::getEffectiveWindow(int &width, int &offsetx, int &height, int &offsety)
{
    const Setting& root = cfg.getRoot();

    // Output a list of all books in the inventory.
    try
    {
        const Setting &effective_window = root["effective_window"];
        int count = effective_window.getLength();

        int bin;
        getBin(bin);

        const Setting &window = effective_window[bin-1];
        string name = window.getName();

        if(!(window.lookupValue("width", width)
             && window.lookupValue("offsetx", offsetx)
             && window.lookupValue("height", height)
             && window.lookupValue("offsety", offsety)))
        {
            return(EXIT_FAILURE);
        }
    }
    catch(const SettingNotFoundException &nfex)
    {
        // Ignore.
        int a=1;
    }

    return(EXIT_SUCCESS);
}

bool Configfile::getGainOffset(float &gain, float &offset)
{
    const Setting& root = cfg.getRoot();

    // Output a list of all books in the inventory.
    try
    {
        const Setting &gainOffset = root["gainOffset"];
        int count = gainOffset.getLength();

        int bin;
        getBin(bin);

        const Setting &gainOffsetSetting = gainOffset[bin-1];
        string name = gainOffsetSetting.getName();

        if(!(gainOffsetSetting.lookupValue("gain", gain)
             && gainOffsetSetting.lookupValue("offset", offset)))
        {
            return(EXIT_FAILURE);
        }
    }
    catch(const SettingNotFoundException &nfex)
    {
        // Ignore.
        int a=1;
    }

    return(EXIT_SUCCESS);
}

int Configfile::createConfigFile()
{
    using namespace std;
    using namespace libconfig;

    static const char *output_file = "ximea.cfg";
    Config cfg;

    Setting &root = cfg.getRoot();

    // Add some settings to the configuration.
    Setting &bin = root.add("bin", Setting::TypeInt) = 1;
    Setting &SN = root.add("SN", Setting::TypeString) = "0098";

    Setting &effective_window = root.add("effective_window", Setting::TypeGroup);
    Setting &effective_windowBin1 = effective_window.add("bin1", Setting::TypeGroup);
    Setting &effective_windowBin2 = effective_window.add("bin2", Setting::TypeGroup);

    effective_windowBin1.add("width", Setting::TypeInt) = 1;
    effective_windowBin1.add("offsetx", Setting::TypeInt) = 2;
    effective_windowBin1.add("height", Setting::TypeInt) = 3;
    effective_windowBin1.add("offsety", Setting::TypeInt) = 4;

    effective_windowBin2.add("width", Setting::TypeInt) = 5;
    effective_windowBin2.add("offsetx", Setting::TypeInt) = 6;
    effective_windowBin2.add("height", Setting::TypeInt) = 7;
    effective_windowBin2.add("offsety", Setting::TypeInt) = 8;

    Setting &gainOffset = root.add("gainOffset", Setting::TypeGroup);
    Setting &gainOffsetBin1 = gainOffset.add("bin1", Setting::TypeGroup);
    Setting &gainOffsetBin2 = gainOffset.add("bin2", Setting::TypeGroup);

    gainOffsetBin1.add("gain", Setting::TypeFloat) = 9.12;
    gainOffsetBin1.add("offset", Setting::TypeFloat) = -10.2;

    gainOffsetBin2.add("gain", Setting::TypeFloat) = 11.789;
    gainOffsetBin2.add("offset", Setting::TypeFloat) = -12.58;


    // Write out the new configuration.
    try
    {
        cfg.writeFile(output_file);
        cerr << "New configuration successfully written to: " << output_file << endl;

    }
    catch(const FileIOException &fioex)
    {
        cerr << "I/O error while writing file: " << output_file << endl;
        return(EXIT_FAILURE);
    }

    return(EXIT_SUCCESS);
}

int Configfile::updateConfigFile()
{
    using namespace std;
    using namespace libconfig;

    static const char *output_file = "updated.cfg";

    Config cfg;

    cfg.setOptions(Config::OptionFsync
                   | Config::OptionSemicolonSeparators
                   | Config::OptionColonAssignmentForGroups
                   | Config::OptionOpenBraceOnSeparateLine);

    // Read the file. If there is an error, report it and exit.
    try
    {
        cfg.readFile("example.cfg");
    }
    catch(const FileIOException &fioex)
    {
        std::cerr << "I/O error while reading file." << std::endl;
        return(EXIT_FAILURE);
    }
    catch(const ParseException &pex)
    {
        std::cerr << "Parse error at " << pex.getFile() << ":" << pex.getLine()
                  << " - " << pex.getError() << std::endl;
        return(EXIT_FAILURE);
    }

    // Find the 'movies' setting. Add intermediate settings if they don't yet
    // exist.
    Setting &root = cfg.getRoot();

    if(! root.exists("inventory"))
        root.add("inventory", Setting::TypeGroup);

    Setting &inventory = root["inventory"];

    if(! inventory.exists("movies"))
        inventory.add("movies", Setting::TypeList);

    Setting &movies = inventory["movies"];

    // Create the new movie entry.
    Setting &movie = movies.add(Setting::TypeGroup);

    movie.add("title", Setting::TypeString) = "Buckaroo Banzai";
    movie.add("media", Setting::TypeString) = "DVD";
    movie.add("price", Setting::TypeFloat) = 12.99;
    movie.add("qty", Setting::TypeInt) = 20;

    // Write out the updated configuration.
    try
    {
        cfg.writeFile(output_file);
        cerr << "Updated configuration successfully written to: " << output_file
             << endl;

    }
    catch(const FileIOException &fioex)
    {
        cerr << "I/O error while writing file: " << output_file << endl;
        return(EXIT_FAILURE);
    }

    return(EXIT_SUCCESS);
}