#include <Wire.h>
#include <hd44780.h>                       // main hd44780 header
#include <hd44780ioClass/hd44780_I2Cexp.h> // i2c expander i/o class header

hd44780_I2Cexp lcd;

const int nbCols = 20;
const int nbLignes = 4;

#include <OneButton.h>
OneButton question(2);
OneButton reponse(3);

enum Etat : uint8_t {INCONNU, SOLIDE, GAZEUX, LIQUIDE };
const char* EtatText[] = {"Inconu", "Solide", "Gazeux", "Liquide"};

struct Element {
  char nom[20];
  char symbole[3];
  Etat etat;
  float masse_atomique;
};

static const Element tablePeriodique[] PROGMEM = {
  {"Hydrogène", "H", GAZEUX, 1.008},
  {"Hélium", "He", GAZEUX, 4.0026},
  {"Lithium", "Li", SOLIDE, 6.94},
  {"Béryllium", "Be", SOLIDE, 9.0122},
  {"Bore", "B", SOLIDE, 10.81},
  {"Carbone", "C", SOLIDE, 12.011},
  {"Azote", "N", GAZEUX, 14.007},
  {"Oxygène", "O", GAZEUX, 15.999},
  {"Fluor", "F", GAZEUX, 18.998},
  {"Néon", "Ne", GAZEUX, 20.18},
  {"Sodium", "Na", SOLIDE, 22.99},
  {"Magnésium", "Mg", SOLIDE, 24.305},
  {"Aluminium", "Al", SOLIDE, 26.982},
  {"Silicium", "Si", SOLIDE, 28.085},
  {"Phosphore", "P", SOLIDE, 30.974},
  {"Soufre", "S", SOLIDE, 32.06},
  {"Chlore", "Cl", GAZEUX, 35.45},
  {"Argon", "Ar", GAZEUX, 39.95},
  {"Potassium", "K", SOLIDE, 39.098},
  {"Calcium", "Ca", SOLIDE, 40.078},
  {"Scandium", "Sc", SOLIDE, 44.956},
  {"Titane", "Ti", SOLIDE, 47.867},
  {"Vanadium", "V", SOLIDE, 50.942},
  {"Chrome", "Cr", SOLIDE, 51.996},
  {"Manganèse", "Mn", SOLIDE, 54.938},
  {"Fer", "Fe", SOLIDE, 55.845},
  {"Cobalt", "Co", SOLIDE, 58.933},
  {"Nickel", "Ni", SOLIDE, 58.693},
  {"Cuivre", "Cu", SOLIDE, 63.546},
  {"Zinc", "Zn", SOLIDE, 65.38},
  {"Gallium", "Ga", SOLIDE, 69.723},
  {"Germanium", "Ge", SOLIDE, 72.63},
  {"Arsenic", "As", SOLIDE, 74.922},
  {"Sélénium", "Se", SOLIDE, 78.971},
  {"Brome", "Br", LIQUIDE, 79.904},
  {"Krypton", "Kr", GAZEUX, 83.798},
  {"Rubidium", "Rb", SOLIDE, 85.468},
  {"Strontium", "Sr", SOLIDE, 87.62},
  {"Yttrium", "Y", SOLIDE, 88.906},
  {"Zirconium", "Zr", SOLIDE, 91.224},
  {"Niobium", "Nb", SOLIDE, 92.906},
  {"Molybdène", "Mo", SOLIDE, 95.95},
  {"Technétium", "Tc", SOLIDE, 98.0},
  {"Ruthénium", "Ru", SOLIDE, 101.07},
  {"Rhodium", "Rh", SOLIDE, 102.91},
  {"Palladium", "Pd", SOLIDE, 106.42},
  {"Argent", "Ag", SOLIDE, 107.87},
  {"Cadmium", "Cd", SOLIDE, 112.41},
  {"Indium", "In", SOLIDE, 114.82},
  {"Étain", "Sn", SOLIDE, 118.71},
  {"Antimoine", "Sb", SOLIDE, 121.76},
  {"Tellure", "Te", SOLIDE, 127.6},
  {"Iode", "I", SOLIDE, 126.9},
  {"Xénon", "Xe", GAZEUX, 131.29},
  {"Césium", "Cs", SOLIDE, 132.91},
  {"Baryum", "Ba", SOLIDE, 137.33},
  {"Lanthane", "La", SOLIDE, 138.91},
  {"Cérium", "Ce", SOLIDE, 140.12},
  {"Praséodyme", "Pr", SOLIDE, 140.91},
  {"Néodyme", "Nd", SOLIDE, 144.24},
  {"Prométhium", "Pm", SOLIDE, 145.0},
  {"Samarium", "Sm", SOLIDE, 150.36},
  {"Europium", "Eu", SOLIDE, 152.0},
  {"Gadolinium", "Gd", SOLIDE, 157.25},
  {"Terbium", "Tb", SOLIDE, 158.93},
  {"Dysprosium", "Dy", SOLIDE, 162.50},
  {"Holmium", "Ho", SOLIDE, 164.93},
  {"Erbium", "Er", SOLIDE, 167.26},
  {"Thulium", "Tm", SOLIDE, 168.93},
  {"Ytterbium", "Yb", SOLIDE, 173.05},
  {"Lutécium", "Lu", SOLIDE, 175.00},
  {"Hafnium", "Hf", SOLIDE, 178.49},
  {"Tantale", "Ta", SOLIDE, 180.95},
  {"Tungstène", "W", SOLIDE, 183.84},
  {"Rhénium", "Re", SOLIDE, 186.21},
  {"Osmium", "Os", SOLIDE, 190.23},
  {"Iridium", "Ir", SOLIDE, 192.22},
  {"Platine", "Pt", SOLIDE, 195.08},
  {"Or", "Au", SOLIDE, 196.97},
  {"Mercure", "Hg", LIQUIDE, 200.59},
  {"Thallium", "Tl", SOLIDE, 204.38},
  {"Plomb", "Pb", SOLIDE, 207.2},
  {"Bismuth", "Bi", SOLIDE, 208.98},
  {"Polonium", "Po", SOLIDE, 209.98},
  {"Astate", "At", SOLIDE, 210.0},
  {"Radon", "Rn", GAZEUX, 222.0},
  {"Francium", "Fr", SOLIDE, 223.0},
  {"Radium", "Ra", SOLIDE, 226.0},
  {"Actinium", "Ac", SOLIDE, 227.0},
  {"Thorium", "Th", SOLIDE, 232.04},
  {"Protactinium", "Pa", SOLIDE, 231.04},
  {"Uranium", "U", SOLIDE, 238.03},
  {"Neptunium", "Np", SOLIDE, 237.0},
  {"Plutonium", "Pu", SOLIDE, 244.0},
  {"Américium", "Am", SOLIDE, 243.0},
  {"Curium", "Cm", SOLIDE, 247.0},
  {"Berkélium", "Bk", SOLIDE, 247.0},
  {"Californium", "Cf", SOLIDE, 251.0},
  {"Einsteinium", "Es", SOLIDE, 252.0},
  {"Fermium", "Fm", SOLIDE, 257.0},
  {"Mendélévium", "Md", SOLIDE, 258.0},
  {"Nobelium", "No", SOLIDE, 259.0},
  {"Lawrencium", "Lr", SOLIDE, 262.0},
  {"Rutherfordium", "Rf", INCONNU, 267.0},
  {"Dubnium", "Db", INCONNU, 270.0},
  {"Seaborgium", "Sg", INCONNU, 271.0},
  {"Bohrium", "Bh", INCONNU, 270.0},
  {"Hassium", "Hs", INCONNU, 277.0},
  {"Meitnérium", "Mt", INCONNU, 278.0},
  {"Darmstadtium", "Ds", INCONNU, 281.0},
  {"Roentgenium", "Rg", INCONNU, 282.0},
  {"Copernicium", "Cn", INCONNU, 285.0},
  {"Nihonium", "Nh", INCONNU, 286.0},
  {"Flerovium", "Fl", INCONNU, 289.0},
  {"Moscovium", "Mc", INCONNU, 289.0},
  {"Livermorium", "Lv", INCONNU, 293.0},
  {"Tennessine", "Ts", INCONNU, 294.0},
  {"Oganesson", "Og", INCONNU, 294.0}
};

const size_t nombreElements = sizeof tablePeriodique / sizeof * tablePeriodique;

size_t questionChoisie;

void nouveauChoix() {
  questionChoisie = random(0, nombreElements);
  lcd.clear();
  lcd.print("Nom de ");
  lcd.print((__FlashStringHelper*) tablePeriodique[questionChoisie].symbole);
}

void afficheReponse() {
  lcd.clear();
  lcd.setCursor(0, 0); lcd.print("Symbole:"); lcd.print((__FlashStringHelper*) tablePeriodique[questionChoisie].symbole);
  lcd.setCursor(0, 1); lcd.print("nom:"); lcd.print((__FlashStringHelper*) tablePeriodique[questionChoisie].nom);
  lcd.setCursor(0, 2); lcd.print("Etat:"); lcd.print(EtatText[pgm_read_byte(&tablePeriodique[questionChoisie].etat)]);
  lcd.setCursor(0, 3); lcd.print("Masse:"); lcd.print(pgm_read_float(&tablePeriodique[questionChoisie].masse_atomique), 3);
}


void setup() {

  question.attachClick(nouveauChoix);
  reponse.attachClick(afficheReponse);

  int result = lcd.begin(nbCols, nbLignes);
  if (result) {
    Serial.print("erreur LCD");
    Serial.println(result);
    hd44780::fatalError(result);
  }

  randomSeed(analogRead(A0));

  nouveauChoix();
}

void loop() {
  question.tick();
  reponse.tick();
}