// TortoiseMerge - a Diff/Patch program

// Copyright (C) 2014, 2021 - TortoiseSVN

// 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; either version 2
// of the License, or (at your option) any later version.

// 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,
// 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
//

#include "stdafx.h"
#include "EditorConfigWrapper.h"
#include "UnicodeUtils.h"
#include "editorconfig/editorconfig.h"

bool CEditorConfigWrapper::Load(CString filename)
{
    if (filename.IsEmpty())
        return false;
    CStringA            filenameA = CUnicodeUtils::GetUTF8(filename);
    editorconfig_handle eh        = editorconfig_handle_init();
    if (editorconfig_parse(filenameA, eh))
    {
        editorconfig_handle_destroy(eh);
        return false;
    }

    int count = editorconfig_handle_get_name_value_count(eh);
    if (count == 0)
    {
        editorconfig_handle_destroy(eh);
        return false;
    }
    for (int i = 0; i < count; ++i)
    {
        const char *name, *value;
        editorconfig_handle_get_name_value(eh, i, &name, &value);
        if (!strcmp(name, "indent_style"))
        {
            if (!strcmp(value, "space"))
                m_bIndentStyle = true;
            else if (!strcmp(value, "tab"))
                m_bIndentStyle = false;
            else
                m_bIndentStyle = nullptr;
        }
        else if (!strcmp(name, "indent_size"))
            m_nIndentSize = atoi(value);
        else if (!strcmp(name, "tab_width"))
            m_nTabWidth = atoi(value);
        else if (!strcmp(name, "end_of_line"))
        {
            if (!strcmp(value, "lf"))
                m_endOfLine = EOL::EOL_LF;
            else if (!strcmp(value, "cr"))
                m_endOfLine = EOL::EOL_CR;
            else if (!strcmp(value, "crlf"))
                m_endOfLine = EOL::EOL_CRLF;
            else
                m_endOfLine = nullptr;
        }
        else if (!strcmp(name, "charset"))
        {
            if (!strcmp(value, "utf-8"))
                m_charset = CFileTextLines::UnicodeType::UTF8;
            else if (!strcmp(value, "utf-8-bom"))
                m_charset = CFileTextLines::UnicodeType::UTF8BOM;
            else if (!strcmp(value, "utf-16be"))
                m_charset = CFileTextLines::UnicodeType::UTF16_BE;
            else if (!strcmp(value, "utf-16le"))
                m_charset = CFileTextLines::UnicodeType::UTF16_LE;
            else
                m_charset = nullptr;
        }
        else if (!strcmp(name, "trim_trailing_whitespace"))
        {
            if (!strcmp(value, "true"))
                m_bTrimTrailingWhitespace = true;
            else if (!strcmp(value, "false"))
                m_bTrimTrailingWhitespace = false;
            else
                m_bTrimTrailingWhitespace = nullptr;
        }
        else if (!strcmp(name, "insert_final_newline"))
        {
            if (!strcmp(value, "true"))
                m_bInsertFinalNewline = true;
            else if (!strcmp(value, "false"))
                m_bInsertFinalNewline = false;
            else
                m_bInsertFinalNewline = nullptr;
        }
    }

    editorconfig_handle_destroy(eh);
    return true;
}