#include <iostream>

#include "rendering/Window.h"

Window::Window(const WindowOptions& options) : window(nullptr) {
    glfwDefaultWindowHints();
    glfwWindowHint(GLFW_VISIBLE, 0);
    glfwWindowHint(GLFW_RESIZABLE, 1);
    glfwWindowHint(GLFW_DECORATED, !options.fullscreen);
    glfwWindowHint(GLFW_DOUBLEBUFFER, 1);

    if(options.es) {
        glfwWindowHint(GLFW_CLIENT_API, GLFW_OPENGL_ES_API);
    } else {
        glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);
    }
    glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, options.majorVersion);
    glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, options.minorVersion);

    GLFWmonitor* monitor =
        options.fullscreen ? glfwGetPrimaryMonitor() : nullptr;
    window = glfwCreateWindow(options.size.width, options.size.height,
                              options.name, monitor, nullptr);
    if(window == nullptr) {
        std::cout << "could not create window\n";
        return;
    }
    glfwMakeContextCurrent(window);
    glfwSwapInterval(options.vsync);
}

Window::~Window() {
    if(window != nullptr) {
        glfwDestroyWindow(window);
    }
}

bool Window::hasError() const {
    return window == nullptr;
}

void Window::show() {
    glfwShowWindow(window);
}

bool Window::shouldClose() const {
    return glfwWindowShouldClose(window);
}

void Window::swapBuffers() {
    glfwSwapBuffers(window);
}

void Window::trapCursor(bool trap) {
    glfwSetInputMode(window, GLFW_CURSOR,
                     trap ? GLFW_CURSOR_DISABLED : GLFW_CURSOR_NORMAL);
}

Size Window::getSize() const {
    Size size(0, 0);
    glfwGetWindowSize(window, &size.width, &size.height);
    return size;
}

Size Window::getFramebufferSize() const {
    Size size(0, 0);
    glfwGetFramebufferSize(window, &size.width, &size.height);
    return size;
}

bool Window::isKeyDown(int key) const {
    return glfwGetKey(window, key) == GLFW_PRESS;
}