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include/menu.h

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+#pragma once
+#define _LCD_TYPE 1
+#include <LCD_1602_RUS_ALL.h>
+#include <EncButton.h>
+
+#include "pizzas.h"
+#include "config.h"
+
+
+class Menu {
+public:
+    static Menu& getInstance() {
+        static Menu instance;
+        return instance;
+    }
+
+    enum Page {
+        WIFI_CONNECT,
+        PRELOAD,
+        PIZZA_SELECT,
+        DOUGH_SELECT,
+        SIZE_SELECT,
+        CONFIRMATION,
+        PLACING_ORDER,
+        TRACKING
+    };
+
+    enum TrackingStatus {
+        UNKNOWN = -1,
+        PROCESSING,
+        ACCEPTED,
+        COOKING,
+        COURIER_WAIT,
+        DELIVERY,
+        FINISHED,
+        CANCELLED
+    };
+
+    void tick();
+    void setMenuPage(Page page);
+    uint8_t getMenuPage() {return menuPage;}
+    void setTrackingStatus(TrackingStatus status);
+    void updateIndex();
+    uint32_t getSelectedPizzaId() {return selectedPizzaId;}
+private:
+    LCD_1602_RUS lcd;
+    EncButton enc;
+    void animation();
+    void scroll(int8_t direction);
+    void initVariations();
+    void drawSizes();
+    void drawSizeSelectUpdate();
+    void drawTrackingStatus();
+    void drawPizzaName(char* name);
+    void drawVariation(Pizzas::Variation var);
+    void draw();
+    void drawPrice(uint16_t price);
+    void drawPriceShort(uint16_t price);
+    void drawIndex();
+    void drawDough(Pizzas::Dough dough);
+    const char* trackingStatusStrings[7] = {
+        "Обработка",
+        "Принят",
+        "Готовится",
+        "Ожидание курьера",
+        "Курьер в пути",
+        "Доставлено",
+        "Отменён"
+    };
+    boolean brbflag;
+    uint32_t animationTick;
+    boolean animationState;
+    Pizzas& pizzas = Pizzas::getInstance();
+    uint8_t curentPizzaIndex;
+    Page menuPage;
+    Pizzas::Dough selectedDough;
+    Pizzas::Variation pizzaSizes[4];
+    uint8_t pizzaSizesIndex;
+    uint32_t selectedPizzaId;
+    TrackingStatus trackingStatus = UNKNOWN;
+
+    Menu();
+
+};

include/parser.h

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+#pragma once
+
+#include "JsonHandler.h"
+#include "pizzas.h"
+#include "menu.h"
+
+class PizzaHandler: public JsonHandler {
+  public:
+    virtual void startDocument();
+
+    virtual void startArray(ElementPath path);
+
+    virtual void startObject(ElementPath path);
+
+    virtual void endArray(ElementPath path);
+
+    virtual void endObject(ElementPath path);
+
+    virtual void endDocument();
+
+    virtual void value(ElementPath path, ElementValue value);
+  
+    virtual void whitespace(char c);
+  private:
+    Pizzas& pizzas = Pizzas::getInstance();
+    Pizzas::Pizza last_pizza;
+    Pizzas::Variation new_variation;
+};

include/pizzas.h

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+#pragma once
+
+
+class Pizzas {
+  public:
+    static Pizzas& getInstance() {
+        static Pizzas instance;
+        return instance;
+    }
+    enum Dough {
+        THIN = 1,
+        TRADITIONAL = 3
+    };
+
+    struct Variation {
+      uint32_t id;
+      uint16_t price;
+      Dough dough;
+      uint8_t size;
+    };
+
+    struct Pizza {
+      uint16_t id;
+      char name[100];
+      uint16_t price;
+      Variation variations[20];
+      uint8_t variations_count = 0;
+    };
+
+    Pizza* get_all() {
+      return pizzas;
+    }
+    Pizza get(uint8_t index) {
+      return pizzas[index];
+    }
+    uint8_t get_count() {
+      return pizzas_count;
+    }
+
+    void add_pizza(Pizza pizza) {
+      pizzas[pizzas_count] = pizza;
+      pizzas_count++;
+    }
+  private:
+    Pizzas() {};
+    Pizza pizzas[100];
+    uint8_t pizzas_count = 0;
+};

include/requests.h

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+#pragma once
+#include <HTTPClient.h>
+#include <config.h>
+#include <ArduinoStreamParser.h>
+
+class Request {
+  public:
+    char* request(const char* method, const char* path);
+    char* request(const char* method, const char* path, const char* payload);
+    void request(const char* method, char* path, ArudinoStreamParser& parser);
+  private:
+    HTTPClient* _get_client(const char* method, char* path);
+    char* _get_url(const char* path);
+};
+