#include <glad/glad.h>
#include <MyGraphicsEngine/Shader.h>
#include <MyGraphicsEngine/Window.h>
#include <MyGraphicsEngine/Mesh.h>

#include <string>

/*
* extern "C"
 {
    #include "lauxlib.h"
    #include "lua.h"
    #include "lualib.h"
}
*/

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

    Mesh mesh;

    mesh.vertices = {
         0.5f, 0.5f, 0.0f, // top, right
          0.5f, -0.5f, 0.0f, // bottom right
          -0.5f, -0.5f, 0.0f, // bottom left
          -0.5f, 0.5f, 0.0f // top left
    };


    mesh.elements = {
        0,1,3,
        1,2,3
    };

    BarinkWindow GameWindow(800, 600);
   
    std::string vertexShaderSource = "build/SandboxApplication/Debug/test.vs";
    std::string fragmentShaderSource = "build/SandboxApplication/Debug/test.fs";
    Shader shader (vertexShaderSource, fragmentShaderSource);

    spdlog::info("Working directory: {}", argv[0]);

    /*
    *   lua_State* L = luaL_newstate();
    luaL_openlibs(L);
    luaL_dostring(L, "print('BarinkEngine')");
    luaL_dofile(L,"./script.lua");
    */

  


    unsigned int VBO, VAO, EBO;

    glGenVertexArrays(1, &VAO);
    glGenBuffers(1, &VBO);
    glGenBuffers(1, &EBO);

    spdlog::info("Vertices: {}", mesh.vertices.size());
    glBindVertexArray(VAO);

    glBindBuffer(GL_ARRAY_BUFFER, VBO);
    glBufferData(GL_ARRAY_BUFFER, sizeof(float) * mesh.vertices.size() , &mesh.vertices[0], GL_STATIC_DRAW);

    glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, EBO);
    glBufferData(GL_ELEMENT_ARRAY_BUFFER, sizeof(int) * mesh.elements.size(), &mesh.elements[0], GL_STATIC_DRAW);

    glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, 3 * sizeof(float), (void*)0);
    glEnableVertexAttribArray(0);

    glBindBuffer(GL_ARRAY_BUFFER, 0);

    glBindVertexArray(0);




    while (!GameWindow.WindowShouldClose()) {
        glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT) ;

        shader.Use();
        glBindVertexArray(VAO);
        glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, EBO);
        glDrawElements(GL_TRIANGLES, 6, GL_UNSIGNED_INT, 0);
        glBindVertexArray(0);

        GameWindow.Poll();
    }


    glDeleteVertexArrays(1, &VAO);
    glDeleteBuffers(1, &EBO);
    

}