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#include "qharfbuzz_p.h"

#include "qunicodetables_p.h"
#include "qlibrary.h"
#include "qtextcodec.h"

QT_USE_NAMESPACE

extern "C" {

HB_GraphemeClass HB_GetGraphemeClass(HB_UChar32 ch)
{
    const QUnicodeTables::Properties *prop = QUnicodeTables::properties(ch);
    return (HB_GraphemeClass) prop->graphemeBreak;
}

HB_WordClass HB_GetWordClass(HB_UChar32 ch)
{
    const QUnicodeTables::Properties *prop = QUnicodeTables::properties(ch);
    return (HB_WordClass) prop->wordBreak;
}

HB_SentenceClass HB_GetSentenceClass(HB_UChar32 ch)
{
    const QUnicodeTables::Properties *prop = QUnicodeTables::properties(ch);
    return (HB_SentenceClass) prop->sentenceBreak;
}

HB_LineBreakClass HB_GetLineBreakClass(HB_UChar32 ch)
{
    return (HB_LineBreakClass)QUnicodeTables::lineBreakClass(ch);
}


void HB_GetGraphemeAndLineBreakClass(HB_UChar32 ch, HB_GraphemeClass *grapheme, HB_LineBreakClass *lineBreak)
{
    const QUnicodeTables::Properties *prop = QUnicodeTables::properties(ch);
    *grapheme = (HB_GraphemeClass) prop->graphemeBreak;
    *lineBreak = (HB_LineBreakClass) prop->line_break_class;
}

void HB_GetUnicodeCharProperties(HB_UChar32 ch, HB_CharCategory *category, int *combiningClass)
{
    const QUnicodeTables::Properties *prop = QUnicodeTables::properties(ch);
    *category = (HB_CharCategory)prop->category;
    *combiningClass = prop->combiningClass;
}

HB_CharCategory HB_GetUnicodeCharCategory(HB_UChar32 ch)
{
    return (HB_CharCategory)QChar::category(ch);
}

int HB_GetUnicodeCharCombiningClass(HB_UChar32 ch)
{
    return QChar::combiningClass(ch);
}

HB_UChar16 HB_GetMirroredChar(HB_UChar16 ch)
{
    return QChar::mirroredChar(ch);
}

void *HB_Library_Resolve(const char *library, const char *symbol)
{
#ifdef QT_NO_LIBRARY
    return 0;
#else
    return QLibrary::resolve(QLatin1String(library), symbol);
#endif
}

void *HB_TextCodecForMib(int mib)
{
#ifndef QT_NO_TEXTCODEC
    return QTextCodec::codecForMib(mib);
#else
    return 0;
#endif
}

char *HB_TextCodec_ConvertFromUnicode(void *codec, const HB_UChar16 *unicode, hb_uint32 length, hb_uint32 *outputLength)
{
#ifndef QT_NO_TEXTCODEC
    QByteArray data = reinterpret_cast<QTextCodec *>(codec)->fromUnicode((const QChar *)unicode, length);
    // ### suboptimal
    char *output = (char *)malloc(data.length() + 1);
    memcpy(output, data.constData(), data.length() + 1);
    if (outputLength)
        *outputLength = data.length();
    return output;
#else
    return 0;
#endif
}

void HB_TextCodec_FreeResult(char *string)
{
    free(string);
}

} // extern "C"

QT_BEGIN_NAMESPACE

HB_Bool qShapeItem(HB_ShaperItem *item)
{
    return HB_ShapeItem(item);
}

HB_Face qHBNewFace(void *font, HB_GetFontTableFunc tableFunc)
{
    return HB_NewFace(font, tableFunc);
}

void qHBFreeFace(HB_Face face)
{
    HB_FreeFace(face);
}

void qGetCharAttributes(const HB_UChar16 *string, hb_uint32 stringLength,
                        const HB_ScriptItem *items, hb_uint32 numItems,
                        HB_CharAttributes *attributes)
{
    HB_GetCharAttributes(string, stringLength, items, numItems, attributes);
}

QT_END_NAMESPACE