#ifndef LRSCRIPTHIGHLIGHTER_H
#define LRSCRIPTHIGHLIGHTER_H

#include <QSet>
#include <QSyntaxHighlighter>

namespace LimeReport {

enum ParenthesisType {
    LeftParenthesis,
    RightParenthesis,
    ParenthesisTypeCount
};

#define PARENHEIS_COUNT 3
const QChar parenthesisCharacters[ParenthesisTypeCount][PARENHEIS_COUNT]
    = { { '(', '{', '[' }, { ')', '}', ']' } };

struct ParenthesisInfo {
    char character;
    int position;
};

class TextBlockData: public QTextBlockUserData {
public:
    TextBlockData() { }
    ~TextBlockData();
    QVector<ParenthesisInfo*> parentheses();
    void insert(ParenthesisInfo* info);

private:
    QVector<ParenthesisInfo*> m_parentheses;
};

class ScriptHighlighter: QSyntaxHighlighter {
public:
    ScriptHighlighter(QTextDocument* parent);

protected:
    void highlightBlock(const QString& text);
    enum ScriptFormats {
        NumberFormat,
        StringFormat,
        KeywordFormat,
        CommentFormat,
        FormatsCount
    };
    QTextCharFormat m_formats[FormatsCount];
    bool isKeyWord(const QString& word);
    void createParentheisisInfo(const char& literal, TextBlockData* data, const QString& text);

private:
    QSet<QString> m_keywords;
};

} // namespace LimeReport
#endif // LRSCRIPTHIGHLIGHTER_H