#ifndef Pudding_h_
#define Pudding_h_

#include <stdlib.h>
#include <string>
#include <iostream>
#include <algorithm>
#include <memory>
#include <type_traits>
#include <filesystem>
#include <curl/curl.h>
#include "SDL.h"
#include "json/json.hpp"
#include "glm/vec2.hpp"
#include "opencv2/core.hpp"
#include "opencv2/videoio.hpp"
#include "opencv2/highgui.hpp"
#include "opencv2/imgproc.hpp"
#include "zbar.h"
#include "Game.hpp"
#include "Color.hpp"
#include "extension.hpp"
#include "Item.hpp"

class Pudding : public Game
{

private:

    typedef Game super;
    const std::string OPEN_FOOD_API_URL = "https://world.openfoodfacts.org/api/v0/product/";
    const std::string NUTRONIX_API_URL = "https://trackapi.nutritionix.com/v2/search/item?upc=";
    const std::string BARCODE_MONSTER_API_URL = "https://barcode.monster/api/";
    const std::string BEST_BUY_API_URL_1 = "https://api.bestbuy.com/v1/products(upc=";
    const std::string BEST_BUY_API_URL_2 = ")?format=json&apiKey=";
    const std::string NUTRONIX_NOT_FOUND = "resource not found";
    const std::string GIANTBOMB_API_URL = "https://www.giantbomb.com/api/release/?api_key=";
    const glm::vec3 ZERO_VECTOR_3D = glm::vec3(0, 0, 0);
    const glm::vec3 Y_UNIT_NORMAL_3D = glm::vec3(0, 1, 0);
    const glm::mat4 VIEW_MATRIX = glm::lookAt(glm::vec3(4, 2, 1), glm::vec3(0, -0.325, 0), Y_UNIT_NORMAL_3D);
    const glm::vec3 PUDDING_BROWN = glm::vec3(0.713f, 0.359f, 0.224f);
    const glm::vec3 PUDDING_YELLOW = glm::vec3(0.878f, 0.859f, 0.122f);
    std::string current_barcode, previous_barcode, current_config_barcode, current_camera_barcode;
    std::vector<Item> items;
    int current_item_index = 0;
    cv::VideoCapture capture;
    cv::Mat capture_frame;
    zbar::ImageScanner image_scanner;
    GLuint flat_program, mvp_program, video_capture_texture_id, mvp_id, background_texture_id;
    glm::mat4 projection, model = glm::mat4(1.0f), mvp;
    std::vector<glm::vec3> pudding_vertices, pudding_colors;
    std::vector<glm::vec2> pudding_uv;

    void set_pudding_model(float, float, int, int = 1, float = -1, float = 1, float = 0.3f);
    void load_gl_context();
    void initialize_camera();
    void incorporate_open_food_api(Item&);
    void incorporate_nutronix_api(Item&);
    void incorporate_edamam_api(Item&);
    void incorporate_best_buy_api(Item&);
    void save_item_json(const nlohmann::json&, const Item&, const std::string&) const;
    nlohmann::json json_from_url(const std::string&, const std::vector<std::string>& = {});
    void curl_get_bytes(const std::string& url, std::vector<std::uint8_t>&, const std::vector<std::string>& = {});
    static size_t curl_write_response(std::uint8_t*, size_t, size_t, std::vector<std::uint8_t>*);
    std::shared_ptr<GLuint> texture_from_image_url(const std::string&);
    static void destroy_texture(GLuint*);

public:

    Pudding();
    void respond(SDL_Event&);
    void add_item(const std::string&);
    void increment_item_index(int = 1);
    Item& get_current_item();
    void update();
    virtual std::string class_name() const { return "Pudding"; }

};

#endif