yuge overhaul, threads, hass, rewrote display, hwmons, bunc of shit

src/sys.cpp

@@ -0,0 +1,26 @@
+#include <sys.hpp>
+
+std::string getAvgs() {
+    std::string ret;
+    double avgs[3];
+    getloadavg(avgs, 3);
+    for (uint8_t i = 0; i < 3; i++)
+        ret += pNum(avgs[i], avgs[i] > 10 ? 1 : 2) + " ";
+    ret.pop_back();  // remove trailing space
+    return ret;
+}
+
+std::array<std::string, 2> getTimeDate() {
+    std::array months = {"sty", "lut", "mar", "kwi", "maj", "cze", "lip", "sie", "wrz", "paz", "lis", "gru"};
+    std::array wdays = {"Nie", "Pon", "Wto", "Sro", "Czw", "Pia", "Sob"};
+    // std::array wdays = {"Ni", "Pn", "Wt", "Sr", "Cz", "Pi", "So"};
+    auto now = std::time(nullptr);
+    auto tm = *std::localtime(&now);
+    std::stringstream time, date;
+    time << std::setfill('0');
+    time << std::setw(2) << tm.tm_hour << ":";
+    time << std::setw(2) << tm.tm_min << ":";
+    time << std::setw(2) << tm.tm_sec;
+    date << wdays[tm.tm_wday] << ", " << tm.tm_mday << " " << months[tm.tm_mon];
+    return {time.str(), date.str()};
+}