feat: Zambretti forecast with trend classification

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-07-17 19:59:17 +07:00
parent 2d52fcd851
commit 5819739fcb
3 changed files with 127 additions and 0 deletions
@@ -0,0 +1,15 @@
+#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);