#ifndef LED_DISPLAY_CONTROLLER
#define LED_DISPLAY_CONTROLLER

#include <Arduino.h>
#include <Adafruit_GFX.h>
#include <Adafruit_NeoMatrix.h>
#include <Adafruit_NeoPixel.h>
#include <EEPROM.h>
#include "esp_task_wdt.h"

class LedDisplayController
{
public:
    explicit LedDisplayController(Adafruit_NeoMatrix *matrix);
    ~LedDisplayController();

    enum text_align_t
    {
        AlignLeft,
        AlignCenter,
        AlignRight
    };

    enum DisplayTextSetParameter
    {
        TextParameter = 0,
        ActiveParameter,
        RuntimeParameter,
        ColorParameter,
        AlignmentParameter,
        ScrollParameter,
        ScrollSpeedParameter,
        ScrollCountParameter,
        IndexParameter,
        DisplayTextSetParameterCount    /*!< Just for helping purposes */
    };

    enum GetSetTextSetParameterExitCode
    {
        Success,
        InvalidParameterError,
        ParameterNotWritableError,
        ValueOutOfRangeError,
        IndexOutOfRangeError,
        ValueIsNullptrError,
        InternalError
    };

    static const uint16_t maximumTextSets = 6;
    static const uint16_t maximumTextLength = 256;

    void loop();

    // modifiers for the internal text sets
    String getTextSetParameter(int index, DisplayTextSetParameter parameter);
    GetSetTextSetParameterExitCode setTextSetParameter(int index, DisplayTextSetParameter parameter, String value);

    // brightness control
    int getBrightness();
    bool setBrightness(int brightness);

private:
    // matrix objects
    TaskHandle_t displayUpdateTask;
    Adafruit_NeoMatrix *matrix;

    // matrix variables
    uint16_t text_curr_nr;
    uint32_t text_set_starttime;

    int text_pos;
    unsigned int text_pass;
    unsigned int textpixel;
    int disp_brightness;
    bool disp_show;

    // matrix control
    void disp_init();
    void disp_start_set();
    void disp_scroll_text();
    void show_matrix(const char *text, int pos, const char *color);
    uint16_t colorFromHex(String hex);

    // storage structs
    typedef struct text_set_t
    {
        char text[maximumTextLength];
        bool active;
        uint16_t runtime;
        char color[7];
        text_align_t alignment;
        bool scroll;
        int scrollSpeed;                /*!< Between 0 and 10 */
        uint16_t scrollCount;
    } text_set_t;

    typedef struct sets_t
    {
        text_set_t sets[maximumTextSets];
        char valid[3];
    } sets_t;

    // storage variables
    sets_t text_sets;

    // storage control
    GetSetTextSetParameterExitCode getSetTextSetParameter(int index, DisplayTextSetParameter parameter, String *value, bool set = false);
    void storeTextSets();
    bool loadTextSets();
};

// function for updater task on core 0
void updateDisplayGlobal(void *);
extern LedDisplayController *ledDisplayControllerGlobal;

#endif // LED_DISPLAY_CONTROLLER