#pragma warning(disable:4996)

#include "imgui/imgui.h"
#include "imgui/imgui_impl_sdl_gl3.h"
#include <glew.h>
#include <SDL_opengl.h>
#include <steam_api.h>
#include <SDL.h>
#include <iostream>
#include <string>


int main(int argc, char *argv[]) {

    if (SteamAPI_Init() == false) {
        std::cout << "cant init steamAPI" << std::endl;
    }

    SDL_Init(SDL_INIT_VIDEO);
    SDL_Init(SDL_INIT_EVENTS);

    // gl attributes

    SDL_GL_SetAttribute(SDL_GL_CONTEXT_FLAGS, SDL_GL_CONTEXT_FORWARD_COMPATIBLE_FLAG);
    SDL_GL_SetAttribute(SDL_GL_CONTEXT_PROFILE_MASK, SDL_GL_CONTEXT_PROFILE_CORE);
    SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1);
    SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, 3);
    SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, 3);
    SDL_GL_SetAttribute(SDL_GL_DEPTH_SIZE, 24);
    SDL_GL_SetAttribute(SDL_GL_STENCIL_SIZE, 8);


    SDL_Window *window = SDL_CreateWindow("Window", SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED, 800, 600, SDL_WINDOW_OPENGL | SDL_WINDOW_RESIZABLE);
    SDL_GLContext glcontext = SDL_GL_CreateContext(window);

    SDL_GL_SetSwapInterval(1);

    glewExperimental = GL_TRUE;

    if (GLEW_OK != glewInit()) {
        std::cout << "Cant init glew!" << std::endl;
    }

    glViewport(0, 0, 800, 600);

    // ImGui binding setup

    IMGUI_CHECKVERSION();
    ImGui::CreateContext();
    ImGuiIO& io = ImGui::GetIO(); (void)io;
    io.ConfigFlags = ImGuiConfigFlags_NavEnableKeyboard;
    ImGui_ImplSdlGL3_Init(window);


    // Style setup
    ImGui::StyleColorsDark();

    float col[3] = { 0.2f, 0.3f, 0.3f };


    bool isRunning = true;
    SDL_Event ev;

    while (isRunning) {



        while (SDL_PollEvent(&ev) != 0) {

            ImGui_ImplSdlGL3_ProcessEvent(&ev);

            if (ev.type == SDL_QUIT) {
                isRunning = false;
            }
        }

        ImGui_ImplSdlGL3_NewFrame(window);

        {
            static float f = 0.0f;
            static int counter = 0;
            ImGui::Text("Hello, world!");

            if (ImGui::Button("Button"))
                counter++;
            ImGui::SameLine();
            ImGui::Text("counter = %d", counter);

            ImGui::Text("Application average %.3f ms/frame (%.1f FPS)", 1000.0f / ImGui::GetIO().Framerate, ImGui::GetIO().Framerate);
        }


        glClearColor(0.2f, 0.3f, 0.3f, 1.0f);
        glClear(GL_COLOR_BUFFER_BIT);


        ImGui::Render();
        ImGui_ImplSdlGL3_RenderDrawData(ImGui::GetDrawData());


        // draw here

        SDL_GL_SwapWindow(window);

    }


    ImGui_ImplSdlGL3_Shutdown();
    ImGui::DestroyContext();

    SDL_DestroyWindow(window);
    SDL_GL_DeleteContext(glcontext);
    SDL_Quit();


    return 0;

}