#include <QtCore>

#include <iostream>

#include <IrcCommand>

#include <IrcMessage>

namespace CommuniBackport {

bool parseColors(const QString& message, int pos, int* len, int* fg = 0, int* bg = 0)

{

    // fg(,bg)

    *len = 0;

    if (fg)

        *fg = -1;

    if (bg)

        *bg = -1;

    QRegExp rx(QLatin1String("(\\d{1,2})(?:,(\\d{1,2}))?"));

    int idx = rx.indexIn(message, pos);

    if (idx == pos) {

        *len = rx.matchedLength();

        if (fg)

            *fg = rx.cap(1).toInt();

        if (bg) {

            bool ok = false;

            int tmp = rx.cap(2).toInt(&ok);

            if (ok)

                *bg = tmp;

        }

    }

    return *len > 0;

}

/*!

Converts \a text to plain text. This function parses the text and

strips away IRC-style formatting like colors, bold and underline.

\sa toHtml()

*/

void toPlainText(QString& processed)

{

    int pos = 0;

    int len = 0;

    while (pos < processed.size()) {

        switch (processed.at(pos).unicode()) {

            case '\x02': // bold

            case '\x0f': // none

            case '\x13': // strike-through

            case '\x15': // underline

            case '\x16': // inverse

            case '\x1d': // italic

            case '\x1f': // underline

                processed.remove(pos, 1);

                break;

            case '\x03': // color

                if (parseColors(processed, pos + 1, &len))

                    processed.remove(pos, len + 1);

                else

                    processed.remove(pos, 1);

                break;

            default:

                ++pos;

                break;

        }

    }

}

}