#include "GameField.h"

void GameField::resize(
        size_t width,
        size_t height
)
{
    m_Width = width;
    m_Height = height;

    m_Field =
            std::vector<
                    std::vector<wchar_t>
            >(
                    m_Height - 2,
                    std::vector<wchar_t>(
                            m_Width - 2,
                            0x0387
                    )
            );
}
void GameField::render(
        PaintDevice& paintDevice
)
{
    for (int x = 1; x < m_Width - 1; x++)
    {
        paintDevice.set_char(
                Vector2(x,0),
                '-'
        );

        paintDevice.set_char(
                Vector2(
                        x,
                        m_Height - 1
                ),
                '-'
        );
    }

    for (int y = 1; y < m_Height - 1; y++)
    {
        paintDevice.set_char(
                Vector2(0,y),
                '|'
        );

        paintDevice.set_char(
                Vector2(
                        m_Width - 1,
                        y
                ),
                '|'
        );
    }

    paintDevice.set_char(
            Vector2(0,0),
            '+'
    );

    paintDevice.set_char(
            Vector2(
                    m_Width - 1,
                    0
            ),
            '+'
    );

    paintDevice.set_char(
            Vector2(
                    0,
                    m_Height - 1
            ),
            '+'
    );

    paintDevice.set_char(
            Vector2(
                    m_Width - 1,
                    m_Height - 1
            ),
            '+'
    );
    for (size_t y = 0; y < m_Field.size(); y++)
    {
        for (size_t x = 0;
             x < m_Field[y].size();
             x++)
        {
            paintDevice.set_char(
                    Vector2(
                            x + 1,
                            y + 1
                    ),
                    m_Field[y][x]
            );
        }
    }
}

bool GameField::has_collision(
        const Figure& figure)
{
    Point position =
            figure.get_position();

    for (const Point& point :
            figure.get_body())
    {
        int x =
                point.x + position.x;

        int y =
                point.y + position.y;

        if (x < 1 ||
            x > m_Width - 2)
            return true;

        if (y < 1 ||
            y > m_Height - 2)
            return true;

        if (
                m_Field[y - 1][x - 1]
                != 0x0387
                )
            return true;
    }

    return false;
}

void GameField::merge(const Figure& figure)
{
    Point position = figure.get_position();

    for (const Point& point : figure.get_body())
    {
        int x = point.x + position.x;
        int y = point.y + position.y;

        if (x < 1 || x > m_Width - 2 ||
            y < 1 || y > m_Height - 2)
            continue;

        m_Field[y - 1][x - 1] = L'#';
    }
}

int GameField::clear_lines()
{
    int cleared = 0;

    for (int y = (int)m_Field.size() - 1; y >= 0; y--)
    {
        bool full = true;

        for (size_t x = 0; x < m_Field[y].size(); x++)
        {
            if (m_Field[y][x] == L' ')
            {
                full = false;
                break;
            }
        }

        if (full)
        {
            cleared++;

            for (int j = y; j > 0; j--)
            {
                m_Field[j] = m_Field[j - 1];
            }

            m_Field[0] = std::vector<wchar_t>(
                    m_Width - 2,
                    L' '
            );

            y++; // 🔥 ВАЖНО: перескан строки после сдвига
        }
    }

    return cleared;
}