DPL: beautify log by considering plural for amount of inverters

src/PowerLimiter.cpp

@@ -22,13 +22,13 @@ static auto sBatteryPoweredFilter = [](PowerLimiterInverter const& inv) {
     return !inv.isSolarPowered();
 };
 
-static const char sBatteryPoweredExpression[] = "battery-powered inverters";
+static const char sBatteryPoweredExpression[] = "battery-powered";
 
 static auto sSolarPoweredFilter = [](PowerLimiterInverter const& inv) {
     return inv.isSolarPowered();
 };
 
-static const char sSolarPoweredExpression[] = "solar-powered inverters";
+static const char sSolarPoweredExpression[] = "solar-powered";
 
 PowerLimiterClass PowerLimiter;
 
@@ -530,11 +530,12 @@ uint16_t PowerLimiterClass::updateInverterLimits(uint16_t powerRequested,
     auto const& config = Configuration.get();
     uint16_t hysteresis = config.PowerLimiter.TargetPowerConsumptionHysteresis;
 
+    bool plural = matchingInverters.size() != 1;
     if (_verboseLogging) {
         MessageOutput.printf("[DPL::updateInverterLimits] requested: %d W, "
-                "producing: %d W using %d %s, diff: %i W, hysteresis: %d W\r\n",
+                "producing: %d W using %d %s inverter%s, diff: %i W, hysteresis: %d W\r\n",
                 powerRequested, producing, matchingInverters.size(),
-                filterExpression.c_str(), diff, hysteresis);
+                filterExpression.c_str(), (plural?"s":""), diff, hysteresis);
     }
 
     if (matchingInverters.empty()) { return 0; }
@@ -589,7 +590,8 @@ uint16_t PowerLimiterClass::updateInverterLimits(uint16_t powerRequested,
 
     if (_verboseLogging) {
         MessageOutput.printf("[DPL::updateInverterLimits] will cover %d W using "
-                "%s\r\n", covered, filterExpression.c_str());
+                "%d %s inverter%s\r\n", covered, matchingInverters.size(),
+                filterExpression.c_str(), (plural?"s":""));
         for (auto pInv : matchingInverters) { pInv->debug(); }
     }