#include "RemoteDebugDialog.h"
#include "ui_RemoteDebugDialog.h"

#include <QHostAddress>
#include <QFileInfo>
#include <QMessageBox>

#define GDBSERVER "GDB"
#define WINDBGPIPE "WinDbg - Pipe"
#define WINDBG_URI_PREFIX "windbg"
#define GDB_URI_PREFIX "gdb"
#define DEFAULT_INDEX (GDBSERVER)

RemoteDebugDialog::RemoteDebugDialog(QWidget *parent) :
    QDialog(parent),
    ui(new Ui::RemoteDebugDialog)
{
    ui->setupUi(this);
    setWindowFlags(windowFlags() & (~Qt::WindowContextHelpButtonHint));

    // Set a default selection
    ui->debuggerCombo->setCurrentIndex(ui->debuggerCombo->findText(DEFAULT_INDEX));
    onIndexChange();

    connect(ui->debuggerCombo,
            static_cast<void (QComboBox::*)(int)>(&QComboBox::currentIndexChanged),
            this, &RemoteDebugDialog::onIndexChange);
}

RemoteDebugDialog::~RemoteDebugDialog() {}

bool RemoteDebugDialog::validate()
{
    QString debugger = getDebugger();

    if (debugger == GDBSERVER) {
        if (!validateIp()) {
            return false;
        }
        if (!validatePort()) {
            return false;
        }
    } else if (debugger == WINDBGPIPE) {
        if (!validatePath()) {
            return false;
        }
    } else {
        QMessageBox msgBox;
        msgBox.setText(tr("Invalid debugger"));
        msgBox.exec();
        return false;
    }

    return true;
}

bool RemoteDebugDialog::validateIp()
{
    QMessageBox msgBox;

    QString ip = getIp();
    if (QHostAddress(ip).isNull()) {
        msgBox.setText(tr("Invalid IP address"));
        msgBox.exec();
        return false;
    }
    return true;
}

bool RemoteDebugDialog::validatePath()
{
    QMessageBox msgBox;

    QString path = getPath();
    if (!QFileInfo(path).exists()) {
        msgBox.setText(tr("Path does not exist"));
        msgBox.exec();
        return false;
    }
    return true;
}

bool RemoteDebugDialog::validatePort()
{
    QMessageBox msgBox;

    int port = getPort();
    if (port < 1 || port > 65535) {
        msgBox.setText(tr("Invalid port"));
        msgBox.exec();
        return false;
    }
    return true;
}

void RemoteDebugDialog::onIndexChange()
{
    QString debugger = getDebugger();
    if (debugger == GDBSERVER) {
        activateGdb();
    } else if (debugger == WINDBGPIPE) {
        activateWinDbgPipe();
    }
}

void RemoteDebugDialog::activateGdb()
{
    ui->ipEdit->setVisible(true);
    ui->portEdit->setVisible(true);
    ui->ipText->setVisible(true);
    ui->portText->setVisible(true);
    ui->pathEdit->setVisible(false);
    ui->pathText->setVisible(false);
}

void RemoteDebugDialog::activateWinDbgPipe()
{
    ui->ipEdit->setVisible(false);
    ui->portEdit->setVisible(false);
    ui->ipText->setVisible(false);
    ui->portText->setVisible(false);
    ui->pathEdit->setVisible(true);
    ui->pathText->setVisible(true);
}

void RemoteDebugDialog::on_buttonBox_accepted()
{
}

void RemoteDebugDialog::on_buttonBox_rejected()
{
    close();
}

void RemoteDebugDialog::setIp(QString ip)
{
    ui->ipEdit->setText(ip);
    ui->ipEdit->selectAll();
}

void RemoteDebugDialog::setPath(QString path)
{
    ui->pathEdit->setText(path);
    ui->pathEdit->selectAll();
}

void RemoteDebugDialog::setPort(QString port)
{
    ui->portEdit->setText(port);
    ui->portEdit->selectAll();
}

void RemoteDebugDialog::setDebugger(QString debugger)
{
    ui->debuggerCombo->setCurrentIndex(ui->debuggerCombo->findText(debugger));
}

QString RemoteDebugDialog::getUri() const
{
    QString debugger = getDebugger();
    if (debugger == WINDBGPIPE) {
        return QString("%1://%2").arg(WINDBG_URI_PREFIX, getPath());
    } else if (debugger == GDBSERVER) {
        return QString("%1://%2:%3").arg(GDB_URI_PREFIX, getIp(), QString::number(getPort()));
    }

    return NULL;
}

QString RemoteDebugDialog::getIp() const
{
    return ui->ipEdit->text();
}

QString RemoteDebugDialog::getPath() const
{
    return ui->pathEdit->text();
}

int RemoteDebugDialog::getPort() const
{
    return ui->portEdit->text().toInt();
}

QString RemoteDebugDialog::getDebugger() const
{
    return ui->debuggerCombo->currentText();
}