#ifdef _WIN32
#include <dwmapi.h>
#include <windows.h>
#endif

#define GLFW_INCLUDE_NONE
#include "GLFW/glfw3.h"

#ifdef _WIN32
#define GLFW_EXPOSE_NATIVE_WIN32
#include "GLFW/glfw3native.h"
#endif

#include "fmt/std.h"

#include "cbt/window.hpp"

namespace cbt {

auto window::init_glfw() -> bool {
    if (!glfwInit()) {
        fmt::print("Failed to initialize GLFW\n");
        return false;
    }
    return true;
}

auto window::terminate_glfw() -> void {
    glfwTerminate();
}

window::window(std::string title, int width, int height) {
    if (!init_glfw()) {
        return;
    }
    m_glfw_initialized = true;

    glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 4);
    glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 1);
    glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);

    m_window = glfwCreateWindow(width, height, title.c_str(), nullptr, nullptr);
    if (!m_window) {
        fmt::print("Failed to create window\n");
        terminate_glfw();
        m_glfw_initialized = false;
        return;
    }

#ifdef _WIN32
    auto hwnd = glfwGetWin32Window(m_window);
    BOOL use_dark_mode = TRUE;
    DwmSetWindowAttribute(hwnd, DWMWA_USE_IMMERSIVE_DARK_MODE, &use_dark_mode, sizeof(use_dark_mode));
#endif
}

window::~window() {
    if (m_window) {
        glfwDestroyWindow(m_window);
    }
    if (m_glfw_initialized) {
        terminate_glfw();
    }
}

auto window::should_close() const -> bool {
    return m_window && glfwWindowShouldClose(m_window);
}

auto window::valid() const -> bool {
    return m_window != nullptr;
}

auto window::swap_buffers() -> void {
    glfwSwapBuffers(m_window);
}

auto window::poll_events() -> void {
    glfwPollEvents();
}

auto window::raw() const -> GLFWwindow* {
    return m_window;
}

auto window::stop() -> void {
    if (m_window) {
        glfwSetWindowShouldClose(m_window, GLFW_TRUE);
    }
}

}