// Std. Includes
#include <iostream>
#include <map>
#include <string>
// GLAD
#include <glad/glad.h>
// GLFW
#include <GLFW/glfw3.h>
// GLM
#include <glm/glm.hpp>
#include <glm/gtc/matrix_transform.hpp>
#include <glm/gtc/type_ptr.hpp>
// Font
#include "font.h"

// Properties
const GLuint WIDTH = 800, HEIGHT = 600;

// The MAIN function, from here we start our application and run the Game loop
int main()
{
    // Init GLFW
    glfwInit();
    glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3);
    glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 3);
    glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);
    //glfwWindowHint(GLFW_RESIZABLE, GL_FALSE);

    GLFWwindow* window = glfwCreateWindow(WIDTH, HEIGHT, "Font Packer", nullptr, nullptr); // Windowed
    glfwMakeContextCurrent(window);

    if (!gladLoadGLLoader((GLADloadproc)glfwGetProcAddress))
    {
        std::cout << "Failed to initialize GLAD" << std::endl;
        return -1;
    }

    // Define the viewport dimensions
    glViewport(0, 0, WIDTH, HEIGHT);

    // Set OpenGL options
    glEnable(GL_CULL_FACE);
    glEnable(GL_BLEND);
    glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);

    Shader shader("shaders/font.vert", "shaders/font.frag");
    Font arial("fonts/arial.ttf", 96);
    //std::cout << "Po font" << glGetError() << std::endl;
    glm::mat4 projection = glm::ortho(0.0f, (float)WIDTH, 0.0f, (float)HEIGHT);
    shader.use();
    shader.setMat4("projection", projection);
    shader.setVec3("textColor", glm::vec3(1.0f));
    shader.setInt("text", 0);
    //glPolygonMode(GL_FRONT_AND_BACK, GL_LINE);
    // Game loop
    //std::cout << "Przed petla: " << glGetError() << std::endl;
    while (!glfwWindowShouldClose(window))
    {
        // Check and call events
        glfwPollEvents();

        // Clear the colorbuffer
        glClearColor(0.2f, 0.3f, 0.3f, 1.0f);
        glClear(GL_COLOR_BUFFER_BIT);
        arial.renderBitmap(shader);
        arial.renderText(shader, "qwertyuiopasdfghjklzxcmcvnQWERTYUIOPPASSDSALADJJHKMXZ,NBXC/.';[']31", 25.0, 25.0, 1.0, glm::vec3(1.0f, 1.0f, 1.0f));
        // Swap the buffers
        glfwSwapBuffers(window);
    }
    glfwTerminate();
    return 0;
}