#pragma once
#include <Arduino.h>

enum Trend { TREND_FALLING = -1, TREND_STEADY = 0, TREND_RISING = 1 };
enum WxCategory { WX_FINE, WX_FAIR, WX_CHANGEABLE, WX_RAIN, WX_STORM, WX_UNKNOWN };

struct Forecast {
  char        letter;    // 'A'..'Z'
  const char* text;      // full Zambretti phrase
  WxCategory  category;  // for display icon + short label
};

Trend       classifyTrend(float deltaHpa3h);
Forecast    computeForecast(float mslHpa, Trend trend, int month);
const char* categoryShort(WxCategory c);
const char* forecastTextForLetter(char letter);   // full Zambretti phrase for 'A'..'Z'