// Copyright 2014 PDFium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
// Original code is licensed as follows:
/*
 * Copyright 2007 ZXing authors
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#include "../barcode.h"
#include "BC_QRCoderVersion.h"
#include "BC_QRCoderMode.h"
CBC_QRCoderMode* CBC_QRCoderMode::sBYTE = NULL;
CBC_QRCoderMode* CBC_QRCoderMode::sNUMERIC = NULL;
CBC_QRCoderMode* CBC_QRCoderMode::sALPHANUMERIC = NULL;
CBC_QRCoderMode* CBC_QRCoderMode::sKANJI = NULL;
CBC_QRCoderMode* CBC_QRCoderMode::sECI = NULL;
CBC_QRCoderMode* CBC_QRCoderMode::sGBK = NULL;
CBC_QRCoderMode* CBC_QRCoderMode::sTERMINATOR = NULL;
CBC_QRCoderMode* CBC_QRCoderMode::sFNC1_FIRST_POSITION = NULL;
CBC_QRCoderMode* CBC_QRCoderMode::sFNC1_SECOND_POSITION = NULL;
CBC_QRCoderMode* CBC_QRCoderMode::sSTRUCTURED_APPEND = NULL;
CBC_QRCoderMode::CBC_QRCoderMode(FX_INT32 *characterCountBitsForVersions,
                                 FX_INT32 x1, FX_INT32 x2, FX_INT32 x3,
                                 FX_INT32 bits, CFX_ByteString name)
{
    m_characterCountBitsForVersions = characterCountBitsForVersions;
    if (m_characterCountBitsForVersions != NULL) {
        m_characterCountBitsForVersions[0] = x1;
        m_characterCountBitsForVersions[1] = x2;
        m_characterCountBitsForVersions[2] = x3;
    }
    m_name += name;
    m_bits = bits;
}
CBC_QRCoderMode::~CBC_QRCoderMode()
{
    if(m_characterCountBitsForVersions != NULL) {
        FX_Free(m_characterCountBitsForVersions);
    }
}
void CBC_QRCoderMode::Initialize()
{
    sBYTE = FX_NEW CBC_QRCoderMode(FX_Alloc(FX_INT32, 3), 8, 16, 16, 0x4, "BYTE");
    sALPHANUMERIC = FX_NEW CBC_QRCoderMode(FX_Alloc(FX_INT32, 3), 9, 11, 13, 0x2, "ALPHANUMERIC");
    sECI = FX_NEW CBC_QRCoderMode(NULL, 0, 0, 0, 0x7, "ECI");
    sKANJI = FX_NEW CBC_QRCoderMode(FX_Alloc(FX_INT32, 3), 8, 10, 12, 0x8, "KANJI");
    sNUMERIC = FX_NEW CBC_QRCoderMode(FX_Alloc(FX_INT32, 3), 10, 12, 14, 0x1, "NUMERIC");
    sGBK = FX_NEW CBC_QRCoderMode(FX_Alloc(FX_INT32, 3), 8, 10, 12, 0x0D, "GBK");
    sTERMINATOR = FX_NEW CBC_QRCoderMode(FX_Alloc(FX_INT32, 3), 0, 0, 0, 0x00, "TERMINATOR");
    sFNC1_FIRST_POSITION = FX_NEW CBC_QRCoderMode(NULL, 0, 0, 0, 0x05, "FNC1_FIRST_POSITION");
    sFNC1_SECOND_POSITION = FX_NEW CBC_QRCoderMode(NULL, 0, 0, 0, 0x09, "FNC1_SECOND_POSITION");
    sSTRUCTURED_APPEND = FX_NEW CBC_QRCoderMode(FX_Alloc(FX_INT32, 3), 0, 0, 0, 0x03, "STRUCTURED_APPEND");
}
void CBC_QRCoderMode::Finalize()
{
    delete sBYTE;
    delete sALPHANUMERIC;
    delete sECI;
    delete sKANJI;
    delete sNUMERIC;
    delete sGBK;
    delete sTERMINATOR;
    delete sFNC1_FIRST_POSITION;
    delete sFNC1_SECOND_POSITION;
    delete sSTRUCTURED_APPEND;
}
CBC_QRCoderMode* CBC_QRCoderMode::ForBits(FX_INT32 bits, FX_INT32 &e)
{
    switch (bits) {
        case 0x0:
            return sTERMINATOR;
        case 0x1:
            return sNUMERIC;
        case 0x2:
            return sALPHANUMERIC;
        case 0x3:
            return sSTRUCTURED_APPEND;
        case 0x4:
            return sBYTE;
        case 0x5:
            return sFNC1_FIRST_POSITION;
        case 0x7:
            return sECI;
        case 0x8:
            return sKANJI;
        case 0x9:
            return sFNC1_SECOND_POSITION;
        case 0x0D:
            return sGBK;
        default: {
                e = BCExceptionUnsupportedMode;
                BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
            }
    }
    return NULL;
}
FX_INT32 CBC_QRCoderMode::GetBits()
{
    return m_bits;
}
CFX_ByteString CBC_QRCoderMode::GetName()
{
    return m_name;
}
FX_INT32 CBC_QRCoderMode::GetCharacterCountBits(CBC_QRCoderVersion* version, FX_INT32 &e)
{
    if(m_characterCountBitsForVersions == NULL) {
        e = BCExceptionCharacterNotThisMode;
        BC_EXCEPTION_CHECK_ReturnValue(e, 0);
    }
    FX_INT32 number = version->GetVersionNumber();
    FX_INT32 offset;
    if(number <= 9) {
        offset = 0;
    } else if(number <= 26) {
        offset = 1;
    } else {
        offset = 2;
    }
    return m_characterCountBitsForVersions[offset];
}
void CBC_QRCoderMode::Destroy()
{
    if(sBYTE) {
        delete CBC_QRCoderMode::sBYTE;
        sBYTE = NULL;
    }
    if(sNUMERIC) {
        delete CBC_QRCoderMode::sNUMERIC;
        sNUMERIC = NULL;
    }
    if(sALPHANUMERIC) {
        delete CBC_QRCoderMode::sALPHANUMERIC;
        sALPHANUMERIC = NULL;
    }
    if(sKANJI) {
        delete CBC_QRCoderMode::sKANJI;
        sKANJI = NULL;
    }
    if(sECI) {
        delete CBC_QRCoderMode::sECI;
        sECI = NULL;
    }
    if(sGBK) {
        delete CBC_QRCoderMode::sGBK;
        sGBK = NULL;
    }
    if(sTERMINATOR) {
        delete CBC_QRCoderMode::sTERMINATOR;
        sTERMINATOR = NULL;
    }
    if(sFNC1_FIRST_POSITION) {
        delete CBC_QRCoderMode::sFNC1_FIRST_POSITION;
        sFNC1_FIRST_POSITION = NULL;
    }
    if(sFNC1_SECOND_POSITION) {
        delete CBC_QRCoderMode::sFNC1_SECOND_POSITION;
        sFNC1_SECOND_POSITION = NULL;
    }
    if(sSTRUCTURED_APPEND) {
        delete CBC_QRCoderMode::sSTRUCTURED_APPEND;
        sSTRUCTURED_APPEND = NULL;
    }
}