#ifndef LCDDISPLAY_HPP
#define LCDDISPLAY_HPP

#define LCD_LINES 4
#define LCD_COLS 40

#include <array>
#include <cstdint>
#include <string>

class LCDDisplay {
   private:
    int _lcd = -1;
    std::string _dev;
    char writebuf[LCD_LINES * LCD_COLS + 8];                       // 4x40 chars + 2x4 setcursor commands
    static constexpr bool dualDisp = (LCD_LINES * LCD_COLS > 80);  // is it dual display device or not, evauluated from the size at compile time
    void writeLines(std::array<std::string, 4> lines);             // do not use
    // we avoid using these, use buffer (even if these are faster for small writes, perhaps a rewrite is in order)
    void writeStr(std::string str);
    void writeStr(uint8_t row, uint8_t col, std::string str);

   public:
    LCDDisplay(std::string dev, uint32_t baud = 0010002);  // from termios-baud.h, B115200
    ~LCDDisplay();
    void open();
    void close();

    void clear();
    void setContrast(uint8_t contrast);
    void setBacklight(bool enabled);
    void setBacklight(uint8_t brightness);
    void setCursor(uint8_t row, uint8_t col);
    void setCustomChar(uint8_t index, std::array<uint8_t, 8> cchar);

    void writeBuf(uint8_t row, uint8_t col, std::string str);
    void clearBuf();
    void flushBuf();

    // returns custom char no. c, small enough to define in header
    constexpr char cc(uint8_t c) { return c % 8; }

    char bar(uint8_t char_id, double value);
};

#endif