/*
    ptrnt - print labels on linux
    Copyright (C) 2025  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 <cairo.h>
#include <pango/pango.h>
#include <pango/pangocairo.h>

namespace ptprnt::graphics {

/**
 * @brief Interface wrapper for Cairo and Pango C API functions
 *
 * This interface allows for dependency injection and mocking of Cairo/Pango
 * functionality in unit tests, making the Label class fully testable.
 */
class ICairoWrapper {
   public:
    virtual ~ICairoWrapper() = default;

    // Cairo image surface functions
    virtual cairo_surface_t* cairo_image_surface_create(cairo_format_t format, int width, int height) = 0;
    virtual void cairo_surface_destroy(cairo_surface_t* surface)                                      = 0;
    virtual void cairo_surface_flush(cairo_surface_t* surface)                                        = 0;
    virtual void cairo_surface_mark_dirty(cairo_surface_t* surface)                                   = 0;
    virtual cairo_status_t cairo_surface_status(cairo_surface_t* surface)                             = 0;
    virtual cairo_format_t cairo_image_surface_get_format(cairo_surface_t* surface)                   = 0;
    virtual int cairo_image_surface_get_width(cairo_surface_t* surface)                               = 0;
    virtual int cairo_image_surface_get_height(cairo_surface_t* surface)                              = 0;
    virtual int cairo_image_surface_get_stride(cairo_surface_t* surface)                              = 0;
    virtual unsigned char* cairo_image_surface_get_data(cairo_surface_t* surface)                     = 0;
    virtual cairo_status_t cairo_surface_write_to_png(cairo_surface_t* surface, const char* filename) = 0;

    // Cairo context functions
    virtual cairo_t* cairo_create(cairo_surface_t* surface)                               = 0;
    virtual void cairo_destroy(cairo_t* cr)                                               = 0;
    virtual void cairo_move_to(cairo_t* cr, double x, double y)                           = 0;
    virtual void cairo_set_source_rgb(cairo_t* cr, double red, double green, double blue) = 0;

    // Pango-Cairo functions
    virtual PangoFontMap* pango_cairo_font_map_new()                       = 0;
    virtual PangoContext* pango_cairo_create_context(cairo_t* cr)          = 0;
    virtual void pango_cairo_show_layout(cairo_t* cr, PangoLayout* layout) = 0;

    // Pango layout functions
    virtual PangoLayout* pango_layout_new(PangoContext* context)                                          = 0;
    virtual void pango_layout_set_font_description(PangoLayout* layout, const PangoFontDescription* desc) = 0;
    virtual void pango_layout_set_text(PangoLayout* layout, const char* text, int length)                 = 0;
    virtual void pango_layout_set_height(PangoLayout* layout, int height)                                 = 0;
    virtual void pango_layout_set_alignment(PangoLayout* layout, PangoAlignment alignment)                = 0;
    virtual void pango_layout_set_justify(PangoLayout* layout, gboolean justify)                          = 0;
#if PANGO_VERSION_MAJOR >= 1 && PANGO_VERSION_MINOR >= 50
    virtual void pango_layout_set_justify_last_line(PangoLayout* layout, gboolean justify) = 0;
#endif
    virtual void pango_layout_get_size(PangoLayout* layout, int* width, int* height) = 0;

    // Pango font description functions
    virtual PangoFontDescription* pango_font_description_new()                                     = 0;
    virtual void pango_font_description_set_size(PangoFontDescription* desc, gint size)            = 0;
    virtual void pango_font_description_set_family(PangoFontDescription* desc, const char* family) = 0;

    // GObject reference counting
    virtual void g_object_unref(gpointer object) = 0;
};

}  // namespace ptprnt::graphics