#include "Util.hpp"

namespace Util {
    QString trimQuotes(QString string, bool& trimmed)
    {
        if(string.isEmpty()) return string;

        trimmed = false;
        if(string.length() >= 2 && string.at(0) == '"' && string.at(string.length() - 1) == '"')
        {
            string.remove(0, 1);
            string.remove(string.length() - 1, 1);
            trimmed = true;
        }
        return string;
    }

    QString unescape(const QString &string, const QChar escapeChar)
    {
        if(string.isEmpty()) return string;
        QString ret;
        bool escaped = false;
        QChar c = string.at(0);
        for(int i = 0; i < string.length(); ++i)
        {
            c = string.at(i);
            if(!escaped)
            {
                if(c == escapeChar)
                {
                    escaped = true;
                    continue;
                }
                else
                {
                    ret.append(c);
                }
            }
            else
            {
                if(unescapeChars.contains(c))
                {
                    ret.append(unescapeChars.value(c));
                }
                else
                {
                    ret.append(c);
                }
                escaped = false;
            }
        }
        if(escaped)
        {
            ret.append(escapeChar);
        }
        return ret;
    }

    QString escape(const QString &string, const QChar escapeChar, const QString &escapeChars)
    {
        QString ret;

        for(int i = 0; i < string.length(); ++i)
        {
            QChar c = string.at(i);

            if(escapeChars.contains(c))
            {
                ret.append(escapeChar);
                ret.append(c);
            }
            else if(unescapeChars.values().contains(c))
            {
                ret.append(unescapeChars.key(c));
            }
            else
            {
                ret.append(c);
            }
        }

        return ret;
    }


}