#include "plugindialog.h"
#include "mainwindow.h"
#include "interface/core_commands.h"

#include <QLabel>
#include <QScrollArea>
#include <QSettings>
#include <QTabWidget>
#include <QValidator>
#include <QMessageBox>

static void paramListCallback(void *context, const char *ParamName, m64p_type ParamType)
{
    PluginDialog *dialog = (PluginDialog *)context;

    if (dialog->getSection() == "Core")
    {
        if (strcmp((char *)ParamName, "Version") == 0)
            return;
        else if (strcmp((char *)ParamName, "OnScreenDisplay") == 0)
            return;
        else if (strcmp((char *)ParamName, "NoCompiledJump") == 0)
            return;
        else if (strcmp((char *)ParamName, "EnableDebugger") == 0)
            return;
        else if (strcmp((char *)ParamName, "GbCameraVideoCaptureBackend1") == 0)
            return;
        else if (strcmp((char *)ParamName, "SaveDiskFormat") == 0)
            return;
        else if (strcmp((char *)ParamName, "SaveFilenameFormat") == 0)
            return;
    }

    QGridLayout *my_layout = nullptr;
    int *my_row = nullptr;
    m64p_handle current_handle = nullptr;
    if (dialog->getSection() == "Core")
    {
        my_layout = dialog->getCoreLayout();
        my_row = dialog->getCoreLayoutRow();
        current_handle = dialog->getCoreHandle();
    }
    else if (dialog->getSection() == "Video")
    {
        my_layout = dialog->getVideoLayout();
        my_row = dialog->getVideoLayoutRow();
        current_handle = dialog->getVideoHandle();
    }
    int l_ParamInt;
    bool l_ParamBool;
    float l_ParamFloat;
    QString l_ParamString;
    QString helper = (*ConfigGetParameterHelp)(current_handle, ParamName);
    QLabel *desc = new QLabel(ParamName, my_layout->parentWidget());
    if (!helper.isEmpty())
    {
        helper.prepend("<span style=\"color:black;\">");
        helper.append("</span>");
        desc->setToolTip(helper);
    }
    desc->setStyleSheet("padding: 10px");
    my_layout->addWidget(desc, *my_row, 0);
    void *my_Widget = nullptr;
    switch (ParamType)
    {
    case M64TYPE_INT:
        my_Widget = new CustomLineEdit(my_layout->parentWidget());
        ((CustomLineEdit *)my_Widget)->setConfigHandle(current_handle);
        ((CustomLineEdit *)my_Widget)->setParamType(ParamType);
        ((CustomLineEdit *)my_Widget)->setParamName(ParamName);
        ((CustomLineEdit *)my_Widget)->setStyleSheet("border: 1px solid; padding: 10px");
        l_ParamInt = (*ConfigGetParamInt)(current_handle, ParamName);
        ((CustomLineEdit *)my_Widget)->setText(QString::number(l_ParamInt));
        ((CustomLineEdit *)my_Widget)->setValidator(new QIntValidator(my_layout->parentWidget()));
        break;
    case M64TYPE_FLOAT:
        my_Widget = new CustomLineEdit(my_layout->parentWidget());
        ((CustomLineEdit *)my_Widget)->setConfigHandle(current_handle);
        ((CustomLineEdit *)my_Widget)->setParamType(ParamType);
        ((CustomLineEdit *)my_Widget)->setParamName(ParamName);
        ((CustomLineEdit *)my_Widget)->setStyleSheet("border: 1px solid; padding: 10px");
        l_ParamFloat = (*ConfigGetParamFloat)(current_handle, ParamName);
        ((CustomLineEdit *)my_Widget)->setText(QString::number(l_ParamFloat));
        ((CustomLineEdit *)my_Widget)->setValidator(new QDoubleValidator(my_layout->parentWidget()));
        break;
    case M64TYPE_BOOL:
        my_Widget = new CustomCheckBox(my_layout->parentWidget());
        ((CustomCheckBox *)my_Widget)->setConfigHandle(current_handle);
        ((CustomCheckBox *)my_Widget)->setParamType(ParamType);
        ((CustomCheckBox *)my_Widget)->setParamName(ParamName);
        ((CustomCheckBox *)my_Widget)->setStyleSheet("padding: 10px");
        l_ParamBool = (*ConfigGetParamBool)(current_handle, ParamName);
        ((CustomCheckBox *)my_Widget)->setCheckState(l_ParamBool ? Qt::Checked : Qt::Unchecked);
        break;
    case M64TYPE_STRING:
        my_Widget = new CustomLineEdit(my_layout->parentWidget());
        ((CustomLineEdit *)my_Widget)->setConfigHandle(current_handle);
        ((CustomLineEdit *)my_Widget)->setParamType(ParamType);
        ((CustomLineEdit *)my_Widget)->setParamName(ParamName);
        ((CustomLineEdit *)my_Widget)->setStyleSheet("border: 1px solid; padding: 10px");
        l_ParamString = (*ConfigGetParamString)(current_handle, ParamName);
        ((CustomLineEdit *)my_Widget)->setText(l_ParamString);
        break;
    }

    my_layout->addWidget((QWidget *)my_Widget, *my_row, 1);
    ++*my_row;
}

void PluginDialog::handleResetButton()
{
    int value;
    (*CoreDoCommand)(M64CMD_CORE_STATE_QUERY, M64CORE_EMU_STATE, &value);
    if (value == M64EMU_STOPPED)
    {
        (*ConfigDeleteSection)("Core");
        (*ConfigDeleteSection)("Video-Parallel");
        (*ConfigSaveFile)();
        w->resetCore();
        this->close();
    }
    else
    {
        QMessageBox msgBox;
        msgBox.setText("Emulator must be stopped.");
        msgBox.exec();
    }
}

PluginDialog::PluginDialog(QWidget *parent)
    : QDialog(parent)
{
    m64p_error res;

    m_coreLayoutRow = 0;
    m_videoLayoutRow = 0;
    QVBoxLayout *mainLayout = new QVBoxLayout(this);
    QTabWidget *tabWidget = new QTabWidget(this);
    tabWidget->setUsesScrollButtons(false);

    QWidget *coreSettings = new QWidget(this);
    m_coreLayout = new QGridLayout(coreSettings);
    coreSettings->setLayout(m_coreLayout);
    res = (*ConfigOpenSection)("Core", &m_coreConfigHandle);
    if (res == M64ERR_SUCCESS)
    {
        this->m_section = "Core";
        (*ConfigListParameters)(m_coreConfigHandle, this, paramListCallback);
    }
    QScrollArea *coreScroll = new QScrollArea(this);
    coreScroll->setWidget(coreSettings);
    coreScroll->setMinimumWidth(coreSettings->sizeHint().width() + 20);
    coreScroll->setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
    tabWidget->addTab(coreScroll, tr("Core"));

    QWidget *videoSettings = new QWidget(this);
    m_videoLayout = new QGridLayout(videoSettings);
    videoSettings->setLayout(m_videoLayout);
    res = (*ConfigOpenSection)("Video-Parallel", &m_videoConfigHandle);
    if (res == M64ERR_SUCCESS)
    {
        this->m_section = "Video";
        (*ConfigListParameters)(m_videoConfigHandle, this, paramListCallback);
    }
    QScrollArea *videoScroll = new QScrollArea(this);
    videoScroll->setWidget(videoSettings);
    videoScroll->setMinimumWidth(videoSettings->sizeHint().width() + 20);
    videoScroll->setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
    tabWidget->addTab(videoScroll, tr("ParaLLEl Video"));

    QLabel *myLabel = new QLabel("Hover your mouse over the configuration item name for a description.\n", this);
    myLabel->setStyleSheet("font-weight: bold");
    mainLayout->addWidget(myLabel);
    mainLayout->addWidget(tabWidget);
    QPushButton *resetButton = new QPushButton("Reset All Settings", this);
    resetButton->setAutoDefault(false);
    connect(resetButton, &QPushButton::released, this, &PluginDialog::handleResetButton);
    mainLayout->addWidget(resetButton);
    setLayout(mainLayout);
}

QString PluginDialog::getSection()
{
    return m_section;
}

m64p_handle PluginDialog::getCoreHandle()
{
    return m_coreConfigHandle;
}

m64p_handle PluginDialog::getVideoHandle()
{
    return m_videoConfigHandle;
}

QGridLayout *PluginDialog::getCoreLayout()
{
    return m_coreLayout;
}

QGridLayout *PluginDialog::getVideoLayout()
{
    return m_videoLayout;
}

int *PluginDialog::getCoreLayoutRow()
{
    return &m_coreLayoutRow;
}

int *PluginDialog::getVideoLayoutRow()
{
    return &m_videoLayoutRow;
}