// basicGLFWWindow
// While I've got a basic initWindow() function in shared/window.h, I mostly just wanted to give an example of how to
// create a window with glfw without it. You can always figure out from the window.h file as well, but it is nice and
// easy to just look here instead, as you're probably already here anyways.
// Oatmeal does ship with GLFW linked as public, so you should be able to just link with it in your CMakeLists.txt file
// without having to add it yourself.
// - Firewire

#include <cstdint>
#include <cstdlib>
#include "GLFW/glfw3.h"
#include "shared/logger.h"

int main() {
    // Init and create the logger
    OatmealUtils::initLogging();
    OatmealUtils::createLogger("window", nullptr);

    // Initialize the GLFW backend
    OatmealUtils::getLogger("window")->info("Initializing GLFW");
    glfwInit();

    // GLFW works on hints for configuration.
    // Since oatmeal is entirely vulkan based and GLFW creates an opengl context by default, we need to tell it not to.
    // At the time of writing (very very early indev) there is no resizable window support, so thats turned off here as
    // well.
    OatmealUtils::getLogger("window")->info("Setting window hints");
    glfwWindowHint(GLFW_CLIENT_API, GLFW_NO_API);
    glfwWindowHint(GLFW_RESIZABLE, GLFW_FALSE);

    // Create the window, running a small error check just in case it failed for whatever reason; and if it did, grab
    // the error from glfw and print it out.
    OatmealUtils::getLogger("window")->info("Create window");
    GLFWwindow *window = glfwCreateWindow(800, 600, "Oatmeal - Basic GLFW window", nullptr, nullptr);
    if (window == nullptr) {
        const char *desc;
        uint32_t code = glfwGetError(&desc);
        OatmealUtils::getLogger("window")->critical("Failed to create window: ({}) {}", code, desc);
        exit(EXIT_FAILURE);
    }

    // This here is whats known as the main application loop. Everything with graphics/games/whatever runs in a loop,
    // updating values as needed before it starts over again. The time it takes to run that loop is known at the
    // frametime, and how many times you can run that loop per second is the FPS (sorta)
    // Since we are just creating a window and have no way of updating it yet, we can just poll for any events and
    // continue.
    while (!glfwWindowShouldClose(window)) {
        glfwPollEvents();
    }

    // Cleanup the window and terminate the glfw backend
    OatmealUtils::getLogger("window")->info("Cleaning up");
    glfwDestroyWindow(window);
    glfwTerminate();

    return 0;
}