#include <GL/glew.h>
#include <GLFW/glfw3.h>
#include <cglm/cglm.h>

#define SKR_BACKEND_API 0    // opengl
#define SKR_BACKEND_WINDOW 0 // glfw
#include <skr/skr.h>

int main(void) {
	SkrState state = SkrInit(
	        &(SkrWindow){
	                .Title = "Hello SKR",
	                .Width = 800,
	                .Height = 600,
	        },
	        SKR_BACKEND_API_GL);

	glewInit();

	// SkrTriangle(&state);

#include <main/shaders/texture.frag.c>
#include <main/shaders/texture.vert.c>

	SkrShader shaders[] = {
	        {GL_VERTEX_SHADER, texture_vert, NULL},
	        {GL_FRAGMENT_SHADER, texture_frag, NULL},
	};

	GLuint prog =
	        m_skr_gl_create_program_from_shaders(shaders, sizeof(shaders));
	static SkrShaderProgram program = {.Backend.GL.ID = 0};
	program.Backend.GL.ID = prog;

	static SkrVertex vertices[] = {
	        {.Position = {0.5f, 0.5f, 0.0f},
	         .Normal = {0.0f, 0.0f, 1.0f},
	         .UV = {1.0f, 1.0f},
	         .Color = {1.0f, 0.0f, 0.0f}},

	        {.Position = {0.5f, -0.5f, 0.0f},
	         .Normal = {0.0f, 0.0f, 1.0f},
	         .UV = {1.0f, 0.0f},
	         .Color = {0.0f, 1.0f, 0.0f}},

	        {.Position = {-0.5f, -0.5f, 0.0f},
	         .Normal = {0.0f, 0.0f, 1.0f},
	         .UV = {0.0f, 0.0f},
	         .Color = {0.0f, 0.0f, 1.0f}},

	        {.Position = {-0.5f, 0.5f, 0.0f},
	         .Normal = {0.0f, 0.0f, 1.0f},
	         .UV = {0.0f, 1.0f},
	         .Color = {1.0f, 1.0f, 0.0f}},
	};

	static unsigned int indices[] = {0, 1, 3, 1, 2, 3};

	// Make mesh
	static SkrMesh mesh = {
	        .Vertices = vertices,
	        .VertexCount = 4,
	        .Indices = indices,
	        .IndexCount = 6,
	        .Program = &program,
	};

	// Make model
	static SkrModel model = {
	        .Meshes = &mesh,
	        .MeshCount = 1,
	};

	const char*  paths[] = {"assets/container.jpg",
	                        "assets/awesomeface.png"};
	unsigned int tex_ids[2];
	m_skr_gl_load_textures_2d_from_paths(paths, tex_ids, 2);

	static SkrTexture textures[2] = {0};
	for (int i = 0; i < 2; i++) {
		textures[i].Backend.GL.ID = tex_ids[i];
		textures[i].Type =
		        (i == 0) ? SKR_TEXTURE_DIFFUSE : SKR_TEXTURE_SPECULAR;
	}

	model.Textures = textures;
	model.TextureCount = 2;

	state.Models = &model;
	state.ModelCount = 1;

	glUseProgram(prog);
	m_skr_gl_shader_set_int(prog, "texture1", 0);
	m_skr_gl_shader_set_int(prog, "texture2", 1);

	while (!SkrShouldClose(&state)) {
		glClearColor(0.1f, 0.1f, 0.1f, 1.0f);
		SkrRendererRender(&state);
	}

	return 0;
}