7 files changed, 247 insertions, 1 deletions

diff --git a/src/crepe/facade/CMakeLists.txt b/src/crepe/facade/CMakeLists.txt
index 0598e16..243ae46 100644
--- a/src/crepe/facade/CMakeLists.txt
+++ b/src/crepe/facade/CMakeLists.txt
@@ -4,6 +4,8 @@ target_sources(crepe PUBLIC
 	SoundContext.cpp
 	SDLContext.cpp
 	DB.cpp
+	FontFacade.cpp
+	Font.cpp
 )
 
 target_sources(crepe PUBLIC FILE_SET HEADERS FILES
@@ -12,5 +14,7 @@ target_sources(crepe PUBLIC FILE_SET HEADERS FILES
 	SoundContext.h
 	SDLContext.h
 	DB.h
+	FontFacade.h
+	Font.h
 )
 
diff --git a/src/crepe/facade/Font.cpp b/src/crepe/facade/Font.cpp
new file mode 100644
index 0000000..4694f7c
--- /dev/null
+++ b/src/crepe/facade/Font.cpp
@@ -0,0 +1,23 @@
+#include <SDL2/SDL_ttf.h>
+
+#include "../api/Asset.h"
+#include "../api/Config.h"
+#include <string>
+
+#include "Font.h"
+
+using namespace std;
+using namespace crepe;
+
+Font::Font(const Asset & src, Mediator & mediator) : Resource(src, mediator) {
+	Config & config = Config::get_instance();
+	const std::string FONT_PATH = src.get_path();
+
+	TTF_Font * loaded_font = TTF_OpenFont(FONT_PATH.c_str(), config.font.size);
+	if (loaded_font == NULL) {
+		throw runtime_error(format("Font: {} (path: {})", TTF_GetError(), FONT_PATH));
+	}
+	this->font = {loaded_font, [](TTF_Font * close_font) { TTF_CloseFont(close_font); }};
+}
+
+TTF_Font * Font::get_font() const { return this->font.get(); }
diff --git a/src/crepe/facade/Font.h b/src/crepe/facade/Font.h
new file mode 100644
index 0000000..b08366d
--- /dev/null
+++ b/src/crepe/facade/Font.h
@@ -0,0 +1,42 @@
+#pragma once
+
+#include <SDL2/SDL_ttf.h>
+#include <functional>
+#include <memory>
+
+#include "../Resource.h"
+
+namespace crepe {
+
+class Asset;
+/**
+ * \brief Resource for managing font creation and destruction
+ *
+ * This class is a wrapper around an SDL_ttf font instance, encapsulating font loading and usage.
+ * It loads a font from an Asset and manages its lifecycle. The font is automatically unloaded
+ * when this object is destroyed.
+ */
+class Font : public Resource {
+
+public:
+	/**
+     * \param src The Asset containing the font file path and metadata to load the font.
+     * \param mediator The Mediator object used for managing the SDL context or related systems.
+     */
+	Font(const Asset & src, Mediator & mediator);
+	/**
+     * \brief Gets the underlying TTF_Font resource.
+     * 
+     * This function returns the raw pointer to the SDL_ttf TTF_Font object that represents
+     * the loaded font. This can be used with SDL_ttf functions to render text.
+     * 
+     * \return The raw TTF_Font object wrapped in a unique pointer.
+     */
+	TTF_Font * get_font() const;
+
+private:
+	//! The SDL_ttf font object with custom deleter.
+	std::unique_ptr<TTF_Font, std::function<void(TTF_Font *)>> font = nullptr;
+};
+
+} // namespace crepe
diff --git a/src/crepe/facade/FontFacade.cpp b/src/crepe/facade/FontFacade.cpp
new file mode 100644
index 0000000..cec3507
--- /dev/null
+++ b/src/crepe/facade/FontFacade.cpp
@@ -0,0 +1,51 @@
+#include <fontconfig/fontconfig.h>
+#include <iostream>
+#include <stdexcept>
+
+#include "FontFacade.h"
+
+using namespace crepe;
+using namespace std;
+
+FontFacade::FontFacade() {
+	if (!FcInit()) {
+		throw runtime_error("Failed to initialize Fontconfig.");
+	}
+}
+FontFacade::~FontFacade() { FcFini(); }
+Asset FontFacade::get_font_asset(const string & font_family) {
+
+	// Create a pattern to search for the font family
+	FcPattern * pattern = FcNameParse(reinterpret_cast<const FcChar8 *>(font_family.c_str()));
+	if (!pattern) {
+		throw runtime_error("Failed to create font pattern.");
+	}
+
+	// Default configuration
+	FcConfig * config = FcConfigGetCurrent();
+	if (config == NULL) {
+		// FcPatternDestroy(pattern);
+		throw runtime_error("Failed to get current Fontconfig configuration.");
+	}
+
+	// Match the font pattern
+	FcResult result;
+	FcPattern * matched_pattern = FcFontMatch(config, pattern, &result);
+	FcPatternDestroy(pattern);
+
+	if (!matched_pattern) {
+		throw runtime_error("No matching font found.");
+	}
+	// Extract the file path
+	FcChar8 * file_path = nullptr;
+	if (FcPatternGetString(matched_pattern, FC_FILE, 0, &file_path) != FcResultMatch
+		|| file_path == NULL) {
+		// FcPatternDestroy(matched_pattern);
+		throw runtime_error("Failed to get font file path.");
+	}
+
+	// Convert the file path to a string
+	string font_file_path = reinterpret_cast<const char *>(file_path);
+	FcPatternDestroy(matched_pattern);
+	return Asset(font_file_path);
+}
diff --git a/src/crepe/facade/FontFacade.h b/src/crepe/facade/FontFacade.h
new file mode 100644
index 0000000..9761070
--- /dev/null
+++ b/src/crepe/facade/FontFacade.h
@@ -0,0 +1,34 @@
+#pragma once
+
+#include <memory>
+
+#include "../api/Asset.h"
+
+namespace crepe {
+
+/**
+ * 
+ * \brief Font facade class for converting font family names to absolute file paths
+ * 
+ */
+class FontFacade {
+public:
+	FontFacade();
+	~FontFacade();
+	FontFacade(const FontFacade & other) = delete;
+	FontFacade & operator=(const FontFacade & other) = delete;
+	FontFacade(FontFacade && other) noexcept = delete;
+	FontFacade & operator=(FontFacade && other) noexcept = delete;
+	/**
+	 * 
+	 * \brief Facade function to convert a font_family into an asset.
+	 * 
+	 * This function uses the FontConfig library to convert a font family name (Arial, Inter, Helvetica) and converts it to the font source path.
+	 * This function returns a default font path if the font_family name doesnt exist or cant be found
+	 * \param font_family Name of the font family name.
+	 * \return Asset with filepath to the corresponding font.
+	 */
+	Asset get_font_asset(const std::string & font_family);
+};
+
+} // namespace crepe
diff --git a/src/crepe/facade/SDLContext.cpp b/src/crepe/facade/SDLContext.cpp
index 20bb030..c3c1b59 100644
--- a/src/crepe/facade/SDLContext.cpp
+++ b/src/crepe/facade/SDLContext.cpp
@@ -6,6 +6,7 @@
 #include <SDL2/SDL_rect.h>
 #include <SDL2/SDL_render.h>
 #include <SDL2/SDL_surface.h>
+#include <SDL2/SDL_ttf.h>
 #include <SDL2/SDL_video.h>
 #include <array>
 #include <cmath>
@@ -20,6 +21,9 @@
 #include "../api/Config.h"
 #include "../api/Sprite.h"
 #include "../util/Log.h"
+#include "api/Text.h"
+#include "api/Transform.h"
+#include "facade/Font.h"
 #include "manager/Mediator.h"
 
 #include "SDLContext.h"
@@ -59,6 +63,10 @@ SDLContext::SDLContext(Mediator & mediator) {
 		throw runtime_error("SDLContext: SDL_image could not initialize!");
 	}
 
+	if (TTF_Init() == -1) {
+		throw runtime_error(format("SDL_ttf initialization failed: {}", TTF_GetError()));
+	}
+
 	mediator.sdl_context = *this;
 }
 
@@ -71,6 +79,7 @@ SDLContext::~SDLContext() {
 	// TODO: how are we going to ensure that these are called from the same
 	// thread that SDL_Init() was called on? This has caused problems for me
 	// before.
+	TTF_Quit();
 	IMG_Quit();
 	SDL_Quit();
 }
@@ -278,6 +287,52 @@ void SDLContext::draw(const RenderContext & ctx) {
 					  angle, NULL, render_flip);
 }
 
+void SDLContext::draw_text(const RenderText & data) {
+
+	const Text & text = data.text;
+	const Font & font = data.font;
+	const Transform & transform = data.transform;
+	std::unique_ptr<SDL_Surface, std::function<void(SDL_Surface *)>> font_surface;
+	std::unique_ptr<SDL_Texture, std::function<void(SDL_Texture *)>> font_texture;
+
+	SDL_Color color{
+		.r = text.data.text_color.r,
+		.g = text.data.text_color.g,
+		.b = text.data.text_color.b,
+		.a = text.data.text_color.a,
+	};
+	SDL_Surface * tmp_font_surface
+		= TTF_RenderText_Solid(font.get_font(), text.text.c_str(), color);
+	if (!tmp_font_surface) {
+		throw runtime_error(format("draw_text: font surface error: {}", SDL_GetError()));
+	}
+	font_surface = {tmp_font_surface, [](SDL_Surface * surface) { SDL_FreeSurface(surface); }};
+
+	SDL_Texture * tmp_font_texture
+		= SDL_CreateTextureFromSurface(this->game_renderer.get(), font_surface.get());
+	if (!tmp_font_texture) {
+		throw runtime_error(format("draw_text: font texture error: {}", SDL_GetError()));
+	}
+	font_texture
+		= {tmp_font_texture, [](SDL_Texture * texture) { SDL_DestroyTexture(texture); }};
+
+	vec2 size = text.dimensions * cam_aux_data.render_scale;
+	vec2 screen_pos = (transform.position + text.offset - cam_aux_data.cam_pos
+					   + (cam_aux_data.zoomed_viewport) / 2)
+						  * cam_aux_data.render_scale
+					  - size / 2 + cam_aux_data.bar_size;
+
+	SDL_FRect dstrect{
+		.x = screen_pos.x,
+		.y = screen_pos.y,
+		.w = size.x,
+		.h = size.y,
+	};
+
+	SDL_RenderCopyExF(this->game_renderer.get(), font_texture.get(), NULL, &dstrect, 0, NULL,
+					  SDL_FLIP_NONE);
+}
+
 void SDLContext::update_camera_view(const Camera & cam, const vec2 & new_pos) {
 
 	const Camera::Data & cam_data = cam.data;
@@ -429,7 +484,12 @@ std::vector<SDLContext::EventData> SDLContext::get_events() {
 	}
 	return event_list;
 }
+
 void SDLContext::set_color_texture(const Texture & texture, const Color & color) {
 	SDL_SetTextureColorMod(texture.get_img(), color.r, color.g, color.b);
 	SDL_SetTextureAlphaMod(texture.get_img(), color.a);
 }
+
+Asset SDLContext::get_font_from_name(const std::string & font_family) {
+	return this->font_facade.get_font_asset(font_family);
+}
diff --git a/src/crepe/facade/SDLContext.h b/src/crepe/facade/SDLContext.h
index bcadf87..aeace07 100644
--- a/src/crepe/facade/SDLContext.h
+++ b/src/crepe/facade/SDLContext.h
@@ -15,12 +15,15 @@
 #include "api/KeyCodes.h"
 #include "api/Sprite.h"
 #include "api/Transform.h"
-
 #include "types.h"
 
+#include "FontFacade.h"
+
 namespace crepe {
 
 class Texture;
+class Text;
+class Font;
 class Mediator;
 
 /**
@@ -68,6 +71,12 @@ public:
 		const double & scale;
 	};
 
+	struct RenderText {
+		const Text & text;
+		const Font & font;
+		const Transform & transform;
+	};
+
 public:
 	//! EventType enum for passing eventType
 	enum EventType {
@@ -184,6 +193,13 @@ public:
 	 */
 	void draw(const RenderContext & ctx);
 
+	/**
+	 * \brief draws a text to the screen 
+	 *
+	 * \param data Reference to the rendering data needed to draw
+	 */
+	void draw_text(const RenderText & data);
+
 	//! Clears the screen, preparing for a new frame.
 	void clear_screen();
 
@@ -240,6 +256,22 @@ private:
 	 * - this is defined in this class because get_events() needs this information aswell
 	 */
 	CameraAuxiliaryData cam_aux_data;
+
+private:
+	//! instance of the font_facade
+	FontFacade font_facade{};
+
+public:
+	/**
+	 * \brief Function to Get asset from font_family
+	 * 
+	 * This function uses the FontFacade function to convert a font_family to an asset.
+	 * 
+	 * \param font_family name of the font style that needs to be used (will return an asset with default font path of the font_family doesnt exist)
+	 * 
+	 * \return asset with the font style absolute path
+	 */
+	Asset get_font_from_name(const std::string & font_family);
 };
 
 } // namespace crepe