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#include <qdeclarative.h>

class TileData : public QObject

{

    Q_OBJECT

public:

    TileData() : _hasFlag(false), _hasMine(false), _hint(-1), _flipped(false) {}

    Q_PROPERTY(bool hasFlag READ hasFlag WRITE setHasFlag NOTIFY hasFlagChanged)

    bool hasFlag() const { return _hasFlag; }

    Q_PROPERTY(bool hasMine READ hasMine NOTIFY hasMineChanged)

    bool hasMine() const { return _hasMine; }

    Q_PROPERTY(int hint READ hint NOTIFY hintChanged)

    int hint() const { return _hint; }

    Q_PROPERTY(bool flipped READ flipped NOTIFY flippedChanged())

    bool flipped() const { return _flipped; }

    void setHasFlag(bool flag) {if(flag==_hasFlag) return; _hasFlag = flag; emit hasFlagChanged();}

    void setHasMine(bool mine) {if(mine==_hasMine) return; _hasMine = mine; emit hasMineChanged();}

    void setHint(int hint) { if(hint == _hint) return; _hint = hint; emit hintChanged(); }

    void flip() { if (_flipped) return; _flipped = true; emit flippedChanged(); }

    void unflip() { if(!_flipped) return; _flipped = false; emit flippedChanged(); }

signals:

    void flippedChanged();

    void hasFlagChanged();

    void hintChanged();

    void hasMineChanged();

private:

    bool _hasFlag;

    bool _hasMine;

    int _hint;

    bool _flipped;

};

class MinehuntGame : public QObject

{

    Q_OBJECT

public:

    MinehuntGame();

    Q_PROPERTY(QDeclarativeListProperty<TileData> tiles READ tiles CONSTANT)

    QDeclarativeListProperty<TileData> tiles();

    Q_PROPERTY(bool isPlaying READ isPlaying NOTIFY isPlayingChanged)

    bool isPlaying() {return playing;}

    Q_PROPERTY(bool hasWon READ hasWon NOTIFY hasWonChanged)

    bool hasWon() {return won;}

    Q_PROPERTY(int numMines READ numMines NOTIFY numMinesChanged)

    int numMines() const{return nMines;}

    Q_PROPERTY(int numFlags READ numFlags NOTIFY numFlagsChanged)

    int numFlags() const{return nFlags;}

public slots:

    Q_INVOKABLE bool flip(int row, int col);

    Q_INVOKABLE bool flag(int row, int col);

    void setBoard();

    void reset();

signals:

    void isPlayingChanged();

    void hasWonChanged();

    void numMinesChanged();

    void numFlagsChanged();

private:

    bool onBoard( int r, int c ) const { return r >= 0 && r < numRows && c >= 0 && c < numCols; }

    TileData *tile( int row, int col ) { return onBoard(row, col) ? _tiles[col+numRows*row] : 0; }

    int getHint(int row, int col);

    void setPlaying(bool b){if(b==playing) return; playing=b; emit isPlayingChanged();}

    QList<TileData *> _tiles;

    int numCols;

    int numRows;

    bool playing;

    bool won;

    int remaining;

    int nMines;

    int nFlags;

};