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#include "localemodel.h"

#include <QLocale>

#include <QDate>

#include <qdebug.h>

static const int g_model_cols = 6;

struct LocaleListItem

{

    int language;

    int country;

};

const LocaleListItem g_locale_list[] = {

    {      1,     0 }, // C/AnyCountry

    {      3,    69 }, // Afan/Ethiopia

    {      3,   111 }, // Afan/Kenya

    {      4,    59 }, // Afar/Djibouti

    {      4,    67 }, // Afar/Eritrea

    {      4,    69 }, // Afar/Ethiopia

    {      5,   195 }, // Afrikaans/SouthAfrica

    {      5,   148 }, // Afrikaans/Namibia

    {      6,     2 }, // Albanian/Albania

    {      7,    69 }, // Amharic/Ethiopia

    {      8,   186 }, // Arabic/SaudiArabia

    {      8,     3 }, // Arabic/Algeria

    {      8,    17 }, // Arabic/Bahrain

    {      8,    64 }, // Arabic/Egypt

    {      8,   103 }, // Arabic/Iraq

    {      8,   109 }, // Arabic/Jordan

    {      8,   115 }, // Arabic/Kuwait

    {      8,   119 }, // Arabic/Lebanon

    {      8,   122 }, // Arabic/LibyanArabJamahiriya

    {      8,   145 }, // Arabic/Morocco

    {      8,   162 }, // Arabic/Oman

    {      8,   175 }, // Arabic/Qatar

    {      8,   201 }, // Arabic/Sudan

    {      8,   207 }, // Arabic/SyrianArabRepublic

    {      8,   216 }, // Arabic/Tunisia

    {      8,   223 }, // Arabic/UnitedArabEmirates

    {      8,   237 }, // Arabic/Yemen

    {      9,    11 }, // Armenian/Armenia

    {     10,   100 }, // Assamese/India

    {     12,    15 }, // Azerbaijani/Azerbaijan

    {     14,   197 }, // Basque/Spain

    {     15,    18 }, // Bengali/Bangladesh

    {     15,   100 }, // Bengali/India

    {     16,    25 }, // Bhutani/Bhutan

    {     20,    33 }, // Bulgarian/Bulgaria

    {     22,    20 }, // Byelorussian/Belarus

    {     23,    36 }, // Cambodian/Cambodia

    {     24,   197 }, // Catalan/Spain

    {     25,    44 }, // Chinese/China

    {     25,    97 }, // Chinese/HongKong

    {     25,   126 }, // Chinese/Macau

    {     25,   190 }, // Chinese/Singapore

    {     25,   208 }, // Chinese/Taiwan

    {     27,    54 }, // Croatian/Croatia

    {     28,    57 }, // Czech/CzechRepublic

    {     29,    58 }, // Danish/Denmark

    {     30,   151 }, // Dutch/Netherlands

    {     30,    21 }, // Dutch/Belgium

    {     31,   225 }, // English/UnitedStates

    {     31,     4 }, // English/AmericanSamoa

    {     31,    13 }, // English/Australia

    {     31,    21 }, // English/Belgium

    {     31,    22 }, // English/Belize

    {     31,    28 }, // English/Botswana

    {     31,    38 }, // English/Canada

    {     31,    89 }, // English/Guam

    {     31,    97 }, // English/HongKong

    {     31,   100 }, // English/India

    {     31,   104 }, // English/Ireland

    {     31,   107 }, // English/Jamaica

    {     31,   133 }, // English/Malta

    {     31,   134 }, // English/MarshallIslands

    {     31,   148 }, // English/Namibia

    {     31,   154 }, // English/NewZealand

    {     31,   160 }, // English/NorthernMarianaIslands

    {     31,   163 }, // English/Pakistan

    {     31,   170 }, // English/Philippines

    {     31,   190 }, // English/Singapore

    {     31,   195 }, // English/SouthAfrica

    {     31,   215 }, // English/TrinidadAndTobago

    {     31,   224 }, // English/UnitedKingdom

    {     31,   226 }, // English/UnitedStatesMinorOutlyingIslands

    {     31,   234 }, // English/USVirginIslands

    {     31,   240 }, // English/Zimbabwe

    {     33,    68 }, // Estonian/Estonia

    {     34,    71 }, // Faroese/FaroeIslands

    {     36,    73 }, // Finnish/Finland

    {     37,    74 }, // French/France

    {     37,    21 }, // French/Belgium

    {     37,    38 }, // French/Canada

    {     37,   125 }, // French/Luxembourg

    {     37,   142 }, // French/Monaco

    {     37,   206 }, // French/Switzerland

    {     40,   197 }, // Galician/Spain

    {     41,    81 }, // Georgian/Georgia

    {     42,    82 }, // German/Germany

    {     42,    14 }, // German/Austria

    {     42,    21 }, // German/Belgium

    {     42,   123 }, // German/Liechtenstein

    {     42,   125 }, // German/Luxembourg

    {     42,   206 }, // German/Switzerland

    {     43,    85 }, // Greek/Greece

    {     43,    56 }, // Greek/Cyprus

    {     44,    86 }, // Greenlandic/Greenland

    {     46,   100 }, // Gujarati/India

    {     47,    83 }, // Hausa/Ghana

    {     47,   156 }, // Hausa/Niger

    {     47,   157 }, // Hausa/Nigeria

    {     48,   105 }, // Hebrew/Israel

    {     49,   100 }, // Hindi/India

    {     50,    98 }, // Hungarian/Hungary

    {     51,    99 }, // Icelandic/Iceland

    {     52,   101 }, // Indonesian/Indonesia

    {     57,   104 }, // Irish/Ireland

    {     58,   106 }, // Italian/Italy

    {     58,   206 }, // Italian/Switzerland

    {     59,   108 }, // Japanese/Japan

    {     61,   100 }, // Kannada/India

    {     63,   110 }, // Kazakh/Kazakhstan

    {     64,   179 }, // Kinyarwanda/Rwanda

    {     65,   116 }, // Kirghiz/Kyrgyzstan

    {     66,   114 }, // Korean/RepublicOfKorea

    {     67,   102 }, // Kurdish/Iran

    {     67,   103 }, // Kurdish/Iraq

    {     67,   207 }, // Kurdish/SyrianArabRepublic

    {     67,   217 }, // Kurdish/Turkey

    {     69,   117 }, // Laothian/Lao

    {     71,   118 }, // Latvian/Latvia

    {     72,    49 }, // Lingala/DemocraticRepublicOfCongo

    {     72,    50 }, // Lingala/PeoplesRepublicOfCongo

    {     73,   124 }, // Lithuanian/Lithuania

    {     74,   127 }, // Macedonian/Macedonia

    {     76,   130 }, // Malay/Malaysia

    {     76,    32 }, // Malay/BruneiDarussalam

    {     77,   100 }, // Malayalam/India

    {     78,   133 }, // Maltese/Malta

    {     80,   100 }, // Marathi/India

    {     82,   143 }, // Mongolian/Mongolia

    {     84,   150 }, // Nepali/Nepal

    {     85,   161 }, // Norwegian/Norway

    {     87,   100 }, // Oriya/India

    {     88,     1 }, // Pashto/Afghanistan

    {     89,   102 }, // Persian/Iran

    {     89,     1 }, // Persian/Afghanistan

    {     90,   172 }, // Polish/Poland

    {     91,   173 }, // Portuguese/Portugal

    {     91,    30 }, // Portuguese/Brazil

    {     92,   100 }, // Punjabi/India

    {     92,   163 }, // Punjabi/Pakistan

    {     95,   177 }, // Romanian/Romania

    {     96,   178 }, // Russian/RussianFederation

    {     96,   222 }, // Russian/Ukraine

    {     99,   100 }, // Sanskrit/India

    {    100,   241 }, // Serbian/SerbiaAndMontenegro

    {    100,    27 }, // Serbian/BosniaAndHerzegowina

    {    100,   238 }, // Serbian/Yugoslavia

    {    101,   241 }, // SerboCroatian/SerbiaAndMontenegro

    {    101,    27 }, // SerboCroatian/BosniaAndHerzegowina

    {    101,   238 }, // SerboCroatian/Yugoslavia

    {    102,   195 }, // Sesotho/SouthAfrica

    {    103,   195 }, // Setswana/SouthAfrica

    {    107,   195 }, // Siswati/SouthAfrica

    {    108,   191 }, // Slovak/Slovakia

    {    109,   192 }, // Slovenian/Slovenia

    {    110,   194 }, // Somali/Somalia

    {    110,    59 }, // Somali/Djibouti

    {    110,    69 }, // Somali/Ethiopia

    {    110,   111 }, // Somali/Kenya

    {    111,   197 }, // Spanish/Spain

    {    111,    10 }, // Spanish/Argentina

    {    111,    26 }, // Spanish/Bolivia

    {    111,    43 }, // Spanish/Chile

    {    111,    47 }, // Spanish/Colombia

    {    111,    52 }, // Spanish/CostaRica

    {    111,    61 }, // Spanish/DominicanRepublic

    {    111,    63 }, // Spanish/Ecuador

    {    111,    65 }, // Spanish/ElSalvador

    {    111,    90 }, // Spanish/Guatemala

    {    111,    96 }, // Spanish/Honduras

    {    111,   139 }, // Spanish/Mexico

    {    111,   155 }, // Spanish/Nicaragua

    {    111,   166 }, // Spanish/Panama

    {    111,   168 }, // Spanish/Paraguay

    {    111,   169 }, // Spanish/Peru

    {    111,   174 }, // Spanish/PuertoRico

    {    111,   225 }, // Spanish/UnitedStates

    {    111,   227 }, // Spanish/Uruguay

    {    111,   231 }, // Spanish/Venezuela

    {    113,   111 }, // Swahili/Kenya

    {    113,   210 }, // Swahili/Tanzania

    {    114,   205 }, // Swedish/Sweden

    {    114,    73 }, // Swedish/Finland

    {    116,   209 }, // Tajik/Tajikistan

    {    117,   100 }, // Tamil/India

    {    118,   178 }, // Tatar/RussianFederation

    {    119,   100 }, // Telugu/India

    {    120,   211 }, // Thai/Thailand

    {    122,    67 }, // Tigrinya/Eritrea

    {    122,    69 }, // Tigrinya/Ethiopia

    {    124,   195 }, // Tsonga/SouthAfrica

    {    125,   217 }, // Turkish/Turkey

    {    129,   222 }, // Ukrainian/Ukraine

    {    130,   100 }, // Urdu/India

    {    130,   163 }, // Urdu/Pakistan

    {    131,   228 }, // Uzbek/Uzbekistan

    {    131,     1 }, // Uzbek/Afghanistan

    {    132,   232 }, // Vietnamese/VietNam

    {    134,   224 }, // Welsh/UnitedKingdom

    {    136,   195 }, // Xhosa/SouthAfrica

    {    138,   157 }, // Yoruba/Nigeria

    {    140,   195 }, // Zulu/SouthAfrica

    {    141,   161 }, // Nynorsk/Norway

    {    142,    27 }, // Bosnian/BosniaAndHerzegowina

    {    143,   131 }, // Divehi/Maldives

    {    144,   224 }, // Manx/UnitedKingdom

    {    145,   224 }, // Cornish/UnitedKingdom

    {    146,    83 }, // Akan/Ghana

    {    147,   100 }, // Konkani/India

    {    148,    83 }, // Ga/Ghana

    {    149,   157 }, // Igbo/Nigeria

    {    150,   111 }, // Kamba/Kenya

    {    151,   207 }, // Syriac/SyrianArabRepublic

    {    152,    67 }, // Blin/Eritrea

    {    153,    67 }, // Geez/Eritrea

    {    153,    69 }, // Geez/Ethiopia

    {    154,   157 }, // Koro/Nigeria

    {    155,    69 }, // Sidamo/Ethiopia

    {    156,   157 }, // Atsam/Nigeria

    {    157,    67 }, // Tigre/Eritrea

    {    158,   157 }, // Jju/Nigeria

    {    159,   106 }, // Friulian/Italy

    {    160,   195 }, // Venda/SouthAfrica

    {    161,    83 }, // Ewe/Ghana

    {    161,   212 }, // Ewe/Togo

    {    163,   225 }, // Hawaiian/UnitedStates

    {    164,   157 }, // Tyap/Nigeria

    {    165,   129 }, // Chewa/Malawi

};

static const int g_locale_list_count = sizeof(g_locale_list)/sizeof(g_locale_list[0]);

LocaleModel::LocaleModel(QObject *parent)

    : QAbstractItemModel(parent)

{

    m_data_list.append(1234.5678);

    m_data_list.append(QDate::currentDate());

    m_data_list.append(QDate::currentDate());

    m_data_list.append(QTime::currentTime());

    m_data_list.append(QTime::currentTime());

}

QVariant LocaleModel::data(const QModelIndex &index, int role) const

{

    if (!index.isValid()

        || role != Qt::DisplayRole && role != Qt::EditRole && role != Qt::ToolTipRole

        || index.column() >= g_model_cols

        || index.row() >= g_locale_list_count + 2)

        return QVariant();

    QVariant data;

    if (index.column() < g_model_cols - 1)

        data = m_data_list.at(index.column());

    if (index.row() == 0) {

        if (role == Qt::ToolTipRole)

            return QVariant();

        switch (index.column()) {

            case 0:

                return data.toDouble();

            case 1:

                return data.toDate();

            case 2:

                return data.toDate();

            case 3:

                return data.toTime();

            case 4:

                return data.toTime();

            case 5:

                return QVariant();

            default:

                break;

        }

    } else {

        QLocale locale;

        if (index.row() == 1) {

            locale = QLocale::system();

        } else {

            LocaleListItem item = g_locale_list[index.row() - 2];

            locale = QLocale((QLocale::Language)item.language, (QLocale::Country)item.country);

        }

        switch (index.column()) {

            case 0:

                if (role == Qt::ToolTipRole)

                    return QVariant();

                return locale.toString(data.toDouble());

            case 1:

                if (role == Qt::ToolTipRole)

                    return locale.dateFormat(QLocale::LongFormat);

                return locale.toString(data.toDate(), QLocale::LongFormat);

            case 2:

                if (role == Qt::ToolTipRole)

                    return locale.dateFormat(QLocale::ShortFormat);

                return locale.toString(data.toDate(), QLocale::ShortFormat);

            case 3:

                if (role == Qt::ToolTipRole)

                    return locale.timeFormat(QLocale::LongFormat);

                return locale.toString(data.toTime(), QLocale::LongFormat);

            case 4:

                if (role == Qt::ToolTipRole)

                    return locale.timeFormat(QLocale::ShortFormat);

                return locale.toString(data.toTime(), QLocale::ShortFormat);

            case 5:

                if (role == Qt::ToolTipRole)

                    return QVariant();

                return locale.name();

            default:

                break;

        }

    }

    return QVariant();

}

QVariant LocaleModel::headerData(int section, Qt::Orientation orientation, int role) const

{

    if (role != Qt::DisplayRole)

        return QVariant();

    if (orientation == Qt::Horizontal) {

        switch (section) {

            case 0:

                return QLatin1String("Double");

            case 1:

                return QLatin1String("Long Date");

            case 2:

                return QLatin1String("Short Date");

            case 3:

                return QLatin1String("Long Time");

            case 4:

                return QLatin1String("Short Time");

            case 5:

                return QLatin1String("Name");

            default:

                break;

        }

    } else {

        if (section >= g_locale_list_count + 2)

            return QVariant();

        if (section == 0) {

            return QLatin1String("Input");

        } else if (section == 1) {

            return QLatin1String("System");

        } else {

            LocaleListItem item = g_locale_list[section - 2];

            return QLocale::languageToString((QLocale::Language)item.language)

                    + QLatin1Char('/')

                    + QLocale::countryToString((QLocale::Country)item.country);

        }

    }

    return QVariant();

}

QModelIndex LocaleModel::index(int row, int column,

                    const QModelIndex &parent) const

{

    if (parent.isValid()

        || row >= g_locale_list_count + 2

        || column >= g_model_cols)

        return QModelIndex();

    return createIndex(row, column);

}

QModelIndex LocaleModel::parent(const QModelIndex&) const

{

    return QModelIndex();

}

int LocaleModel::columnCount(const QModelIndex&) const

{

    return g_model_cols;

}

int LocaleModel::rowCount(const QModelIndex &parent) const

{

    if (parent.isValid())

        return 0;

    return g_locale_list_count + 2;

}

Qt::ItemFlags LocaleModel::flags(const QModelIndex &index) const

{

    if (!index.isValid())

        return 0;

    if (index.row() == 0 && index.column() == g_model_cols - 1)

        return 0;

    if (index.row() == 0)

        return Qt::ItemIsSelectable | Qt::ItemIsEditable | Qt::ItemIsEnabled;

    return Qt::ItemIsSelectable | Qt::ItemIsEnabled;

}

bool LocaleModel::setData(const QModelIndex &index, const QVariant &value, int role)

{

    if (!index.isValid()

        || index.row() != 0

        || index.column() >= g_model_cols - 1

        || role != Qt::EditRole

        || m_data_list.at(index.column()).type() != value.type())

        return false;

    m_data_list[index.column()] = value;

    emit dataChanged(createIndex(1, index.column()),

            createIndex(g_locale_list_count, index.column()));

    return true;

}