#ifndef PKE_FONT_TYPE_HPP
#define PKE_FONT_TYPE_HPP

#include "asset-manager.hpp"
#include "components.hpp"
#include "pk.h"

#include <glm/vec4.hpp>

/*
Vert: (two triangles)
vec2 vertex
vec2 uv

Inst:
vec4 fg_color
vec4 bg_color
vec4 sprite_region
float width

Texture:
the MTSDF
*/

TypeSafeInt_H(FontTypeIndex, uint16_t, 0xFFFF);
TypeSafeInt_H(FontRenderIndex, uint16_t, 0xFFFF);

struct FontGlyphChar {
	uint32_t unicode;
	glm::ivec4 bounds;
};
struct FontRender {
	uint32_t len;
	FontTypeIndex index_ft;
	FontRenderIndex index_fr;
};
struct FontType : public Entity_Base {
	pk_cstr title;
	AssetHandle fontTextureAssetHandle;
	AssetHandle glyphDetailsAssetHandle;
	VkDeviceMemory deviceMemoryVert = VK_NULL_HANDLE;
	VkDeviceMemory deviceMemoryTexture = VK_NULL_HANDLE;
	VkDeviceMemory deviceMemoryInst = VK_NULL_HANDLE;
	VkImage textureImage = VK_NULL_HANDLE;
	VkImageView textureImageView = VK_NULL_HANDLE;
	VkDescriptorPool vkDescriptorPool = VK_NULL_HANDLE;
	VkDescriptorSet *vkDescriptorSets = nullptr;
	FontGlyphChar *glyphs;
	FontRender *renders = nullptr;
	uint32_t n_glyphs;
	FontRenderIndex n_render = FontRenderIndex{0};
	FontRenderIndex h_render = FontRenderIndex{0};
	FontTypeIndex index_ft = FontTypeIndex{0};
	struct FontTypeBindings {
		BufferBindingDetails vertexBD;
		BufferBindingDetails uvBD;
		BufferBindingDetails indexBD;
		BufferBindingDetails instanceBD;
		uint32_t indexCount;
		uint32_t instanceCounter = 0;
		uint32_t instanceBufferMaxCount = 0;
	} bindings;
};

void FontType_Init();
void FontType_Teardown();
void FontType_Tick();
void FontType_Serialize(std::ofstream &stream, FontType *ft);
void FontType_Deserialize(std::ifstream &stream);
FontType* FontType_GetFonts(FontTypeIndex &count);
FontTypeIndex FontType_RegisterFont(pk_cstr title, AssetHandle fontTextureHandle, AssetHandle glyphsHandle);
void FontType_Unload(FontTypeIndex idx);
FontRender FontType_AddStringRender(FontTypeIndex idx_ft, pk_cstr cstr);
void FontType_RemoveStringRender(FontRender fr);

#endif /* PKE_FONT_TYPE_HPP */