#include "sdl2Window.h"



WindowSDL2::WindowSDL2() {

    
}

WindowSDL2::~WindowSDL2() {

    SDL_DestroyWindow(window);
    SDL_Quit();
}

void WindowSDL2::init( std::string title, int x, int y) : title(title), x(x), y(y) {

    if (SDL_Init(SDL_INIT_VIDEO | SDL_INIT_TIMER | SDL_INIT_GAMECONTROLLER) != 0)
    {
        printf("Error: %s\n", SDL_GetError());
        error = true;
        return;
    }

    SDL_WindowFlags window_flags = (SDL_WindowFlags)(SDL_WINDOW_VULKAN | SDL_WINDOW_RESIZABLE | SDL_WINDOW_ALLOW_HIGHDPI);
    window = SDL_CreateWindow(title.c_str(), SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED, x, y, window_flags);
    if (window == nullptr)
    {
        printf("Error: SDL_CreateWindow(): %s\n", SDL_GetError());
        error = true;
        return;
    }

    // int test = SDL_SetWindowOpacity(this->window, 0.1f);
    // float t;
    // SDL_GetWindowOpacity(this->window, &t);
    // std::cout << test << " " << t <<  std::endl;
}

void WindowSDL2::shutdown() {
    ~WindowSDL2();
}

void WindowSDL2::getSize() {

    SDL_GetWindowSize(window, &x, &y);
}

const Event* WindowSDL2::createEvent() {
    switch(event.type) {
        case SDL_KEYDOWN:
            return new KeyEvent(event.key.keysym.sym, event.key.keysym.scancode, 
                                event.key.keysym.mod, event.key.repeat, true);

        case SDL_KEYUP:
            return new KeyEvent(event.key.keysym.sym, event.key.keysym.scancode, 
                                event.key.keysym.mod, event.key.repeat, false);

        case SDL_TEXTINPUT:
            return new KeyTypedEvent(event.text.windowID, event.text.text);

        case SDL_MOUSEBUTTONDOWN:
        case SDL_MOUSEBUTTONUP:

            switch(event.button.button) {
                case SDL_BUTTON_LEFT:   return new MouseButtonEvent(0, (event.type == SDL_MOUSEBUTTONDOWN));
                case SDL_BUTTON_RIGHT:  return new MouseButtonEvent(1, (event.type == SDL_MOUSEBUTTONDOWN));
                case SDL_BUTTON_MIDDLE: return new MouseButtonEvent(2, (event.type == SDL_MOUSEBUTTONDOWN));
                case SDL_BUTTON_X1:     return new MouseButtonEvent(3, (event.type == SDL_MOUSEBUTTONDOWN));
                case SDL_BUTTON_X2:     return new MouseButtonEvent(4, (event.type == SDL_MOUSEBUTTONDOWN));
            }
            

        case SDL_MOUSEMOTION:
            return new MouseMovedEvent(event.motion.x, event.motion.y, event.motion.xrel, event.motion.yrel);

        case SDL_MOUSEWHEEL:
            return new MouseScrolledEvent(event.wheel.x, event.wheel.y);

        case SDL_WINDOWEVENT:
            return new WindowEvent(event.window.windowID, event.window.event);
    }
    return nullptr;
}


const Event* WindowSDL2::pollEvents() {

    while (SDL_PollEvent(&event)) {

        return createEvent();
    }
    return nullptr;
}