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#include <QDate>

#include <QLocale>

#include <QTime>

#include <QVariant>

#include <QThread>

#include <e32std.h>

#include "private/qcore_symbian_p.h"

QT_BEGIN_NAMESPACE

// Located in qlocale.cpp

extern void getLangAndCountry(const QString &name, QLocale::Language &lang, QLocale::Country &cntry);

static TExtendedLocale _s60Locale;

// Type definitions for runtime resolved function pointers

typedef void (*FormatFunc)(TTime&, TDes&, const TDesC&, const TLocale&);

typedef TPtrC (*FormatSpecFunc)(TExtendedLocale&);

// Runtime resolved functions

static FormatFunc ptrTimeFormatL = NULL;

static FormatSpecFunc ptrGetTimeFormatSpec = NULL;

static FormatSpecFunc ptrGetLongDateFormatSpec = NULL;

static FormatSpecFunc ptrGetShortDateFormatSpec = NULL;

// Default functions if functions cannot be resolved

static void defaultTimeFormatL(TTime&, TDes& des, const TDesC&, const TLocale&)

{

    des.Zero();

}

static TPtrC defaultFormatSpec(TExtendedLocale&)

{

    return TPtrC(KNullDesC);

}

/*

  Definition of struct for mapping Symbian to ISO locale

*/

struct symbianToISO {

    int symbian_language;

    char iso_name[8];

};

/*

  Mapping from Symbian to ISO locale

*/

static const symbianToISO symbian_to_iso_list[] = {

    { ELangEnglish,             "en_GB" },

    { ELangFrench,              "fr_FR" },

    { ELangGerman,              "de_DE" },

    { ELangSpanish,             "es_ES" },

    { ELangItalian,             "it_IT" },

    { ELangSwedish,             "sv_SE" },

    { ELangDanish,              "da_DK" },

    { ELangNorwegian,           "no_NO" },

    { ELangFinnish,             "fi_FI" },

    { ELangAmerican,            "en_US" },

    { ELangPortuguese,          "pt_PT" },

    { ELangTurkish,             "tr_TR" },

    { ELangIcelandic,           "is_IS" },

    { ELangRussian,             "ru_RU" },

    { ELangHungarian,           "hu_HU" },

    { ELangDutch,               "nl_NL" },

    { ELangBelgianFlemish,      "nl_BE" },

    { ELangCzech,               "cs_CZ" },

    { ELangSlovak,              "sk_SK" },

    { ELangPolish,              "pl_PL" },

    { ELangSlovenian,           "sl_SI" },

    { ELangTaiwanChinese,       "zh_TW" },

    { ELangHongKongChinese,     "zh_HK" },

    { ELangPrcChinese,          "zh_CN" },

    { ELangJapanese,            "ja_JP" },

    { ELangThai,                "th_TH" },

    { ELangArabic,              "ar_AE" },

    { ELangTagalog,             "tl_PH" },

    { ELangBulgarian,           "bg_BG" },

    { ELangCatalan,             "ca_ES" },

    { ELangCroatian,            "hr_HR" },

    { ELangEstonian,            "et_EE" },

    { ELangFarsi,               "fa_IR" },

    { ELangCanadianFrench,      "fr_CA" },

    { ELangGreek,               "el_GR" },

    { ELangHebrew,              "he_IL" },

    { ELangHindi,               "hi_IN" },

    { ELangIndonesian,          "id_ID" },

    { ELangLatvian,             "lv_LV" },

    { ELangLithuanian,          "lt_LT" },

    { ELangMalay,               "ms_MY" },

    { ELangBrazilianPortuguese, "pt_BR" },

    { ELangRomanian,            "ro_RO" },

    { ELangSerbian,             "sr_YU" },

    { ELangUkrainian,           "uk_UA" },

    { ELangUrdu,                "ur_PK" }, // India/Pakistan

    { ELangVietnamese,          "vi_VN" },

#ifdef __E32LANG_H__

// 5.0

    { ELangBasque,              "eu_ES" },

    { ELangGalician,            "gl_ES" },

#endif

#if !defined(__SERIES60_31__)

    { ELangEnglish_Apac,        "en" },

    { ELangEnglish_Taiwan,      "en_TW" },

    { ELangEnglish_HongKong,    "en_HK" },

    { ELangEnglish_Prc,         "en_CN" },

    { ELangEnglish_Japan,       "en_JP"},

    { ELangEnglish_Thailand,    "en_TH" },

    { ELangMalay_Apac,          "ms" }

#endif

};

/*!

    Returns ISO name corresponding to the Symbian locale code \a sys_fmt.

*/

QByteArray qt_symbianLocaleName(int code)

{

    //Number of Symbian to ISO locale mappings

    static const int symbian_to_iso_count

        = sizeof(symbian_to_iso_list)/sizeof(symbianToISO);

    int cmp = code - symbian_to_iso_list[0].symbian_language;

    if (cmp < 0)

        return 0;

    if (cmp == 0)

        return symbian_to_iso_list[0].iso_name;

    int begin = 0;

    int end = symbian_to_iso_count;

    while (end - begin > 1) {

        uint mid = (begin + end)/2;

        const symbianToISO *elt = symbian_to_iso_list + mid;

        int cmp = code - elt->symbian_language;

        if (cmp < 0)

            end = mid;

        else if (cmp > 0)

            begin = mid;

        else

            return elt->iso_name;

    }

    return 0;

}

// order is: normal, abbr, nmode, nmode+abbr

static const char *us_locale_dep[] = {

    "MM", "dd", "yyyy", "MM", "dd",

    "M", "d", "yy", "M", "d",

    "MMMM", "dd", "yyyy", "MMMM", "dd",

    "MMM", "d", "yy", "MMM", "d" };

static const char *eu_locale_dep[] = {

    "dd", "MM", "yyyy", "dd", "MM",

    "d", "M", "yy", "d", "M",

    "dd", "MMMM", "yyyy", "dd", "MMMM",

    "d", "MMM", "yy", "d", "MMM" };

static const char *jp_locale_dep[] = {

    "yyyy", "MM", "dd", "MM", "dd",

    "yy", "M", "d", "M", "d",

    "yyyy", "MMMM", "dd", "MMMM", "dd",

    "yy", "MMM", "d", "MMM", "d" };

/*!

    Returns a Qt version of the given \a sys_fmt Symbian locale format string.

*/

static QString s60ToQtFormat(const QString &sys_fmt)

{

    TLocale *locale = _s60Locale.GetLocale();

    QString result;

    QString other;

    QString qtformatchars = QString::fromLatin1("adhmsyzAHM");

    QChar c;

    int i = 0;

    bool open_escape = false;

    bool abbrev_next = false;

    bool locale_indep_ordering = false;

    bool minus_mode = false;

    bool plus_mode = false;

    bool n_mode = false;

    TTimeFormat tf = locale->TimeFormat();

    while (i < sys_fmt.size()) {

        c = sys_fmt.at(i);

        // let formatting thru

        if (c.unicode() == '%') {

            // if we have gathered string, concat it

            if (!other.isEmpty()) {

                result += other;

                other.clear();

            }

            // if we have open escape, end it

            if (open_escape) {

                result += QLatin1Char('\'');

                open_escape = false;

            }

            ++i;

            if (i >= sys_fmt.size())

                break;

            c = sys_fmt.at(i);

            // process specials

            abbrev_next = c.unicode() == '*';

            plus_mode = c.unicode() == '+';

            minus_mode = c.unicode() == '-';

            if (abbrev_next || plus_mode || minus_mode) {

                ++i;

                if (i >= sys_fmt.size())

                    break;

                c = sys_fmt.at(i);

                if (plus_mode || minus_mode) {

                    // break on undefined plus/minus mode

                    if (c.unicode() != 'A' && c.unicode() != 'B')

                        break;

                }

            }

            switch (c.unicode()) {

                case 'F':

                {

                    // locale indep mode on

                    locale_indep_ordering = true;

                    break;

                }

                case '/':

                {

                    // date sep 0-3

                    ++i;

                    if (i >= sys_fmt.size())

                        break;

                    c = sys_fmt.at(i);

                    if (c.isDigit() && c.digitValue() <= 3) {

                        TChar s = locale->DateSeparator(c.digitValue());

                        TUint val = s;

                        // some indexes return zero for empty

                        if (val > 0)

                            result += QChar(val);

                    }

                    break;

                }

                case 'D':

                {

                    if (!locale_indep_ordering)

                        break;

                    if (!abbrev_next)

                        result += QLatin1String("dd");

                    else

                        result += QLatin1Char('d');

                    break;

                }

                case 'M':

                {

                    if (!locale_indep_ordering)

                        break;

                    if (!n_mode) {

                        if (!abbrev_next)

                            result += QLatin1String("MM");

                        else

                            result += QLatin1String("M");

                    } else {

                        if (!abbrev_next)

                            result += QLatin1String("MMMM");

                        else

                            result += QLatin1String("MMM");

                    }

                    break;

                }

                case 'N':

                {

                    n_mode = true;

                    if (!locale_indep_ordering)

                        break;

                    if (!abbrev_next)

                        result += QLatin1String("MMMM");

                    else

                        result += QLatin1String("MMM");

                    break;

                }

                case 'Y':

                {

                    if (!locale_indep_ordering)

                        break;

                    if (!abbrev_next)

                        result += QLatin1String("yyyy");

                    else

                        result += QLatin1String("yy");

                    break;

                }

                case 'E':

                {

                    if (!abbrev_next)

                        result += QLatin1String("dddd");

                    else

                        result += QLatin1String("ddd");

                    break;

                }

                case ':':

                {

                    // timesep 0-3

                    ++i;

                    if (i >= sys_fmt.size())

                        break;

                    c = sys_fmt.at(i);

                    if (c.isDigit() && c.digitValue() <= 3) {

                        TChar s = locale->TimeSeparator(c.digitValue());

                        TUint val = s;

                        // some indexes return zero for empty

                        if (val > 0)

                            result += QChar(val);

                    }

                    break;

                }

                case 'J':

                {

                    if (tf == ETime24 && !abbrev_next)

                        result += QLatin1String("hh");

                    else

                        result += QLatin1Char('h');

                    break;

                }

                case 'H':

                {

                    if (!abbrev_next)

                        result += QLatin1String("hh");

                    else

                        result += QLatin1Char('h');

                    break;

                }

                case 'I':

                {

                    result += QLatin1Char('h');

                    break;

                }

                case 'T':

                {

                    if (!abbrev_next)

                        result += QLatin1String("mm");

                    else

                        result += QLatin1Char('m');

                    break;

                }

                case 'S':

                {

                    if (!abbrev_next)

                        result += QLatin1String("ss");

                    else

                        result += QLatin1Char('s');

                    break;

                }

                case 'B':

                {

                    // only done for 12h clock

                    if (tf == ETime24)

                        break;

                }

                    // fallthru to A

                case 'A': {

                    // quickie to get capitalization, can't use s60 string as is because Qt 'hh' format's am/pm logic

                    TAmPmName ampm = TAmPmName();

                    TChar first(ampm[0]);

                    QString qtampm = QString::fromLatin1(first.IsUpper() ? "AP" : "ap");

                    int pos = locale->AmPmSymbolPosition();

                    if ((minus_mode && pos != ELocaleBefore) ||

                        (plus_mode && pos != ELocaleAfter))

                        break;

                    if (!abbrev_next && locale->AmPmSpaceBetween()) {

                        if (pos == ELocaleBefore)

                            qtampm.append(QLatin1Char(' '));

                        else

                            qtampm.prepend(QLatin1Char(' '));

                    }

                    result += qtampm;

                    }

                    break;

                case '.': {

                        // decimal sep

                        TChar s = locale->DecimalSeparator();

                        TUint val = s;

                        if (val > 0)

                            result += QChar(val);

                    }

                    break;

                case 'C':

                {

                    // six digits in s60, three digits in qt

                    if (!abbrev_next) {

                        result += QLatin1String("zzz");

                    } else {

                        // next char is number from 0-6, how many digits to display

                        ++i;

                        if (i >= sys_fmt.size())

                            break;

                        c = sys_fmt.at(i);

                        if (c.isDigit()) {

                            // try to match wanted digits

                            QChar val(c.digitValue());

                            if (val >= 3) {

                                result += QLatin1String("zzz");

                            } else if (val > 0) {

                                result += QLatin1Char('z');

                            }

                        }

                    }

                    break;

                }

                // these cases fallthru

                case '1':

                case '2':

                case '3':

                case '4':

                case '5':

                {

                    // shouldn't parse these with %F

                    if (locale_indep_ordering)

                        break;

                    TDateFormat df = locale->DateFormat();

                    const char **locale_dep;

                    switch (df) {

                        default: // fallthru to american

                        case EDateAmerican:

                            locale_dep = us_locale_dep;

                            break;

                        case EDateEuropean:

                            locale_dep = eu_locale_dep;