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#include <stdexcept>
#include "../Common/Sizes.hpp"
#include "../Common/Assert.hpp"
#include "../ThreadRole.hpp"
#include "Window.hpp"
#include "../Common/Casts.hpp"
#include <string>

namespace MC::GFX {

Window::Window(std::string const& title, U32 const width, U32 const height) {
    ASSERT_MAIN_THREAD();
    glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3);
    glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 3);
    glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);
    glfwWindowHint(GLFW_OPENGL_FORWARD_COMPAT, GL_TRUE);
    glfwWindowHint(GLFW_DOUBLEBUFFER, GL_TRUE);

    m_window = glfwCreateWindow(TO(I32, width), TO(I32, height), title.c_str(), nullptr, nullptr);
    if (m_window == nullptr) {
        throw std::runtime_error("Failed to create window.");
    }

    glfwMakeContextCurrent(m_window);
    glfwSetInputMode(m_window, GLFW_CURSOR, GLFW_CURSOR_DISABLED);
}

Window::~Window() {
    ASSERT_MAIN_THREAD();
    glfwDestroyWindow(m_window);
}

Bool Window::should_close() const {
    return glfwWindowShouldClose(m_window);
}

GLFWwindow* Window::get() const {
    return m_window;
}

void Window::close() const {
    glfwSetWindowShouldClose(m_window, true);
}

void Window::start_render() const {
    glfwSwapBuffers(m_window);
}

void Window::poll_events() const {
    ASSERT_MAIN_THREAD();
    glfwPollEvents();
}

void Window::on_size_change(void (callback)(GLFWwindow*, I32, I32)) const {
    glfwSetFramebufferSizeCallback(m_window, callback);
}

void Window::attach() const {
    glfwMakeContextCurrent(m_window);
}

void Window::detach() const {
    ASSERT(glfwGetCurrentContext() == m_window, "Cannot detach window that is not current");
    glfwMakeContextCurrent(nullptr);
}

}