#include <SDL2/SDL_ttf.h>

#include <fmt/format.h>
#include "rsdl.hpp"
#include "resources/font.hpp"

#include <pragmautil.hpp>

namespace hibis {
	namespace rsdl {
		RSDL::RSDL(std::string title, IntVec2 size, LoggerCallback callback) {
			logger = callback;

			SDL_Init(SDL_INIT_VIDEO);

			// Create window. `title` is cast to a char* here as tostd::stringz returns an immutable char* (causing an error)
			window = SDL_CreateWindow(title.c_str(), SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED,
										size.x, size.y, SDL_WINDOW_RESIZABLE);

			if (window == NULL) {
				logger(Fatal, fmt::format("Couldn't create window! what: {}", SDL_GetError()));
				SDL_Quit();
				exit(1);
			}

			renderer = SDL_CreateRenderer(window, -1, SDL_RENDERER_ACCELERATED);

			if (renderer == NULL) {
				logger(Fatal, fmt::format("Couldn't create renderer! what: {}", SDL_GetError()));
				SDL_DestroyWindow(window);
				SDL_Quit();
				exit(1);
			}

			if (TTF_Init() != 0) {
				logger(Fatal, fmt::format("Couldn't load SDL_TTF! what: %d", TTF_GetError()));
				SDL_DestroyRenderer(renderer);
				SDL_DestroyWindow(window);
				SDL_Quit();
				TTF_Quit();
				exit(1);
			}
		}

		RSDL::~RSDL() {
			TTF_Quit();
			SDL_DestroyRenderer(renderer);
			SDL_DestroyWindow(window);
			SDL_Quit();
		}

		void RSDL::clearScreen(Color col) {
			SDL_SetRenderDrawColor(renderer, col.r, col.g, col.b, col.a);
			SDL_RenderClear(renderer);
		}

		void RSDL::renderCurrent() {
			SDL_UpdateWindowSurface(window);
			SDL_RenderPresent(renderer);
		}

		void RSDL::drawText(Resource* resource, std::string text, IntVec2 pos, Color color) {
			if (Font* font = (Font*)resource) {
				SDL_Surface* textSurface = TTF_RenderText_Solid(font->loadedFont, text.c_str(), SDL_Color {color.r, color.g, color.b, color.a });
				SDL_Texture* textTexture = SDL_CreateTextureFromSurface(renderer, textSurface);

				int width = 0;
				int height = 0;

				TTF_SizeText(font->loadedFont, text.c_str(), &width, &height);

				SDL_Rect textRect;
				textRect.x = pos.x;
				textRect.y = pos.y;
				textRect.w = width;
				textRect.h = height;

				SDL_RenderCopy(renderer, textTexture, NULL, &textRect);

				SDL_DestroyTexture(textTexture);
				SDL_FreeSurface(textSurface);
			}
		}

		void RSDL::preDraw() {}
		void RSDL::postDraw() {}

		void RSDL::update() {
			SDL_Event event;

			while(SDL_PollEvent(&event)) {
				if (event.type == SDL_QUIT) keepOpen = false;
			}
		}

		void RSDL::setWindowTitle(std::string title) {}
	}
}