/* 
    ptrnt - print labels on linux
    Copyright (C) 2023  Moritz Martinius

    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <https://www.gnu.org/licenses/>.

 */

#pragma once

#include <pango/pangocairo.h>

#include <cstdint>
#include <string>
#include <vector>

#include "cairo.h"
#include "pango/pango-font.h"
#include "pango/pango-types.h"

namespace ptprnt::graphics {

constexpr const char* DEFAULT_FONT_FAMILY = "sans";
constexpr const uint8_t DEFAULT_FONT_SIZE = 32;

class Label {
   public:
    Label();
    ~Label();

    Label(const Label&)            = delete;
    Label& operator=(const Label&) = delete;
    Label(Label&&)                 = delete;
    Label& operator=(Label&&)      = delete;

    std::vector<uint8_t> getRaw();
    void create(const std::string& labelText, const uint16_t heightPixel);
    void writeToPng(const std::string& file);
    int getLayoutWidth();
    int getLayoutHeight();

   private:
    // methods
    uint8_t getNumLines(std::string_view str);
    // members
    PangoContext* mPangoCtx{nullptr};
    PangoLayout* mPangoLyt{nullptr};
    PangoFontDescription* mPangoFontDesc{nullptr};
    cairo_surface_t* mSurface{nullptr};
    int mLayoutWidth = 0, mLayoutHeight = 0;
    int mPrinterHeight = 0;
};
}  // namespace ptprnt::graphics