#include "TestTriangle.h"
#include "modules/ImguiModule/ImguiModule.h"

#define GLEW_STATIC
#include <GL/glew.h>

TestTriangle::TestTriangle(Archimedes::App* a, void* h) : Archimedes::Module(a, h) {

    name = "TestTriangle";

    WindowModule* wm = new WindowModule(a, h);
    deps[*wm] = wm;
}

TestTriangle::~TestTriangle() {
    
    if(app) {
        WindowModule* wm; { wm = (WindowModule*) moduleInstances[WindowModule()]; }


        wm->getRenderer()->getCmdList().erase(rcmd_it);

        wm->releaseWindow(window);
    }
}

void TestTriangle::onLoad() {
    
    WindowModule* wm; { wm = (WindowModule*) moduleInstances[WindowModule()]; }
    
    if(!wm) {
        std::cout << "No WindowModule for TestTriangle!\n";
        std::abort();
    }

    window = wm->aquireWindow();

    wm->getRenderer()->getCmdList().push_back([this](){
            // 0. copy our vertices array in a buffer for OpenGL to use
            glBindBuffer(GL_ARRAY_BUFFER, vbo);
            glBufferData(GL_ARRAY_BUFFER, sizeof(vertices), vertices, GL_STATIC_DRAW);
            // 1. then set the vertex attributes pointers
            glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, 3 * sizeof(float), (void*)0);
            glEnableVertexAttribArray(0);  
            // 2. use our shader program when we want to render an object
            glUseProgram(program);
            glBindVertexArray(vao);
            // 3. now draw the object 
            glDrawArrays(GL_TRIANGLES, 0, 3);
    });

    rcmd_it = --wm->getRenderer()->getCmdList().end()++;

    ////////////////////////

    glGenBuffers(1, &vbo);
    glBindBuffer(GL_ARRAY_BUFFER, vbo);
    glBufferData(GL_ARRAY_BUFFER, sizeof(vertices), vertices, GL_STATIC_DRAW);

    glGenVertexArrays(1, &vao);

    vs = glCreateShader(GL_VERTEX_SHADER);
    glShaderSource(vs, 1, &vertexShaderSource, NULL);
    glCompileShader(vs);

    fs = glCreateShader(GL_FRAGMENT_SHADER);
    glShaderSource(fs, 1, &fragShaderSource, NULL);
    glCompileShader(fs);

    program = glCreateProgram();

    glAttachShader(program, vs);
    glAttachShader(program, fs);
    glLinkProgram(program);

    glDeleteShader(vs);
    glDeleteShader(fs);
    
}

void TestTriangle::run() {
}