/*

 * Hedgewars, a free turn based strategy game

 * Copyright (c) 2004-2012 Andrey Korotaev <unC0Rr@gmail.com>

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License as published by

 * the Free Software Foundation; version 2 of the License

 *

 * This program is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 * GNU General Public License for more details.

 *

 * You should have received a copy of the GNU General Public License

 * along with this program; if not, write to the Free Software

 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA

 */

#include <QHBoxLayout>

#include <QLineEdit>

#include <QTextBrowser>

#include <QLabel>

#include <QSysInfo>

#include <QApplication>

#include <QDesktopWidget>

#include <QProcess>

#include <string>

#ifdef Q_WS_WIN

#define WINVER 0x0500

#include <windows.h>

#else

#include <unistd.h>

#include <sys/types.h>

#endif

#ifdef Q_WS_MAC

#include <sys/sysctl.h>

#endif

#include "pagefeedback.h"

#include "hwconsts.h"

QLayout * PageFeedback::bodyLayoutDefinition()

{

    QVBoxLayout * pageLayout = new QVBoxLayout();

    QHBoxLayout * summaryLayout = new QHBoxLayout();

    info = new QLabel();

    info->setText(

        "<style type=\"text/css\">"

        "a { color: #ffcc00; }"

        "</style>"

        "<div align=\"center\"><h1>Please give us a feedback!</h1>"

        "<h3>We are always happy about suggestions, ideas or bug reports.<h3>"

        "<h4>The feedback will be posted as a new issue on our Google Code page.<h4>"

        "</div>"

    );

    pageLayout->addWidget(info);

    label_summary = new QLabel();

    label_summary->setText(QLabel::tr("Summary   "));

    summaryLayout->addWidget(label_summary);

    summary = new QLineEdit();

    summaryLayout->addWidget(summary);

    pageLayout->addLayout(summaryLayout);

    label_description = new QLabel();

    label_description->setText(QLabel::tr("Description"));

    pageLayout->addWidget(label_description, 0, Qt::AlignHCenter);

    description = new QTextBrowser();

    // Gather some information about the system and embed it into the report

    QDesktopWidget* screen = QApplication::desktop();

    QString os_version = "Operating system: ";

    QString qt_version = QString("Qt version: ") + QT_VERSION_STR + QString("\n");

    QString total_ram = "Total RAM: ";

    QString available_ram = "Available RAM: ";

    QString number_of_cores = "Number of cores: ";

    QString compiler_bits = "Compiler architecture: ";

    QString compiler_version = "Compiler version: ";

    QString kernel_line = "Kernel: ";

    QString screen_size = "Size of the screen(s): " +

        QString::number(screen->width()) + "x" + QString::number(screen->height()) + "\n";

    QString number_of_screens = "Number of screens: " + QString::number(screen->screenCount()) + "\n";

    std::string processor_name = "Processor: ";

    // platform specific code

#ifdef Q_WS_MACX

    number_of_cores += QString::number(sysconf(_SC_NPROCESSORS_ONLN)) + "\n";

    uint64_t memsize, memavail;

    size_t len = sizeof(memsize);

    static int mib_s[2] = { CTL_HW, HW_MEMSIZE };

    static int mib_a[2] = { CTL_HW, HW_USERMEM };

    if (sysctl (mib_s, 2, &memsize, &len, NULL, 0) == 0)

        total_ram += QString::number(memsize/1024/1024) + " MB\n";

    else

        total_ram += "Error getting total RAM information\n";

    if (sysctl (mib_a, 2, &memavail, &len, NULL, 0) == 0)

        available_ram += QString::number(memavail/1024/1024) + " MB\n";

    else

        available_ram += "Error getting available RAM information\n";

        int mib[] = {CTL_KERN, KERN_OSRELEASE};

    sysctl(mib, sizeof mib / sizeof(int), NULL, &len, NULL, 0);

    char *kernelVersion = (char *)malloc(sizeof(char)*len);

    sysctl(mib, sizeof mib / sizeof(int), kernelVersion, &len, NULL, 0);

    QString kernelVersionStr = QString(kernelVersion);

    free(kernelVersion);

    int major_version = kernelVersionStr.split(".").first().toUInt() - 4;

    int minor_version = kernelVersionStr.split(".").at(1).toUInt();

    os_version += QString("Mac OS X 10.%1.%2").arg(major_version).arg(minor_version) + " ";

    switch(major_version)

    {

        case 4:  os_version += "\"Tiger\"\n"; break;

        case 5:  os_version += "\"Leopard\"\n"; break;

        case 6:  os_version += "\"Snow Leopard\"\n"; break;

        case 7:  os_version += "\"Lion\"\n"; break;

        case 8:  os_version += "\"Mountain Lion\"\n"; break;

        default: os_version += "\"Unknown version\"\n"; break;

    }

#endif

#ifdef Q_WS_WIN

    SYSTEM_INFO sysinfo;

    GetSystemInfo(&sysinfo);

    number_of_cores += QString::number(sysinfo.dwNumberOfProcessors) + "\n";

    MEMORYSTATUSEX status;

    status.dwLength = sizeof(status);

    GlobalMemoryStatusEx(&status);

    total_ram = QString::number(status.ullTotalPhys);

    switch(QSysInfo::WinVersion())

    {

        case QSysInfo::WV_2000: os_version += "Windows 2000\n"; break;

        case QSysInfo::WV_XP: os_version += "Windows XP\n"; break;

        case QSysInfo::WV_VISTA: os_version += "Windows Vista\n"; break;

        case QSysInfo::WV_WINDOWS7: os_version += "Windows 7\n"; break;

        default: os_version += "Windows (Unknown version)\n"; break;

    }

    kernel_line += "Windows kernel\n";

#endif

#ifdef Q_WS_X11

    number_of_cores += QString::number(sysconf(_SC_NPROCESSORS_ONLN)) + "\n";

    long pages = sysconf(_SC_PHYS_PAGES),

         available_pages = sysconf(_SC_AVPHYS_PAGES),

         page_size = sysconf(_SC_PAGE_SIZE);

    total_ram += QString::number(pages * page_size) + "\n";

    available_ram += QString::number(available_pages * page_size) + "\n";

    os_version += "GNU/Linux or BSD\n";

#endif

    // uname -a

#if defined(Q_WS_X11) || defined(Q_WS_MACX)

    QProcess *process = new QProcess();

    QStringList arguments = QStringList("-a");

    process->start("uname", arguments);

    if (process->waitForFinished())

        kernel_line += QString(process->readAll());

    delete process;

#endif

    // cpu info

    uint32_t registers[4];

    uint32_t i;

    i = 0x80000002;

    asm volatile

      ("cpuid" : "=a" (registers[0]), "=b" (registers[1]), "=c" (registers[2]), "=d" (registers[3])

       : "a" (i), "c" (0));

    processor_name += std::string((const char *)&registers[0], 4);

    processor_name += std::string((const char *)&registers[1], 4);

    processor_name += std::string((const char *)&registers[2], 4);

    processor_name += std::string((const char *)&registers[3], 4);

    i = 0x80000003;

    asm volatile

      ("cpuid" : "=a" (registers[0]), "=b" (registers[1]), "=c" (registers[2]), "=d" (registers[3])

       : "a" (i), "c" (0));

    processor_name += std::string((const char *)&registers[0], 4);

    processor_name += std::string((const char *)&registers[1], 4);

    processor_name += std::string((const char *)&registers[2], 4);

    processor_name += std::string((const char *)&registers[3], 4);

    i = 0x80000004;

    asm volatile

      ("cpuid" : "=a" (registers[0]), "=b" (registers[1]), "=c" (registers[2]), "=d" (registers[3])

       : "a" (i), "c" (0));

    processor_name += std::string((const char *)&registers[0], 4);

    processor_name += std::string((const char *)&registers[1], 4);

    processor_name += std::string((const char *)&registers[2], 4);

    processor_name += std::string((const char *)&registers[3], 3);

    // compiler

#ifdef __GNUC__

    compiler_version += "GCC " + QString(__VERSION__) + "\n";

#else

    compiler_version += "Unknown\n";

#endif

    if(sizeof(void*) == 4)

        compiler_bits += "i386\n";

    else if(sizeof(void*) == 8)

        compiler_bits += "x86_64\n";

    // add everything to the field of text

    description->setText(

        "\n\n\n\n\n"

        "System information:\n"

        + qt_version

        + os_version

        + total_ram

        + available_ram

        + screen_size

        + number_of_screens

        + QString::fromStdString(processor_name + "\n")

        + number_of_cores

        + compiler_version

        + compiler_bits

        + kernel_line

    );

    description->setReadOnly(false);

    pageLayout->addWidget(description);

    return pageLayout;

}

QLayout * PageFeedback::footerLayoutDefinition()

{

    QHBoxLayout * bottomLayout = new QHBoxLayout();

    bottomLayout->setStretch(0,1);

    //TODO: create logo for send button

    BtnSend = addButton("Send", bottomLayout, 0, false);

    bottomLayout->insertStretch(0);

    return bottomLayout;

}

void PageFeedback::connectSignals()

{

    //TODO

}

PageFeedback::PageFeedback(QWidget* parent) : AbstractPage(parent)

{

    initPage();

}