private async static Task <int> Weather(Predictions predictions)
{
var querycount = 0;
predictions.OnQuery += () =>
{
querycount++;
};
// this should cause a query
var weather = await predictions.CurrentWeather();
foreach (var w in weather)
{
Console.WriteLine($"{w.Date} {w.Type} {w.StrValue} {w.Value}");
}
if (weather.Count == 0 || querycount != 2)
{
throw new Exception($"Invalid query : {weather.Count} {querycount}");
}
var previousquerycount = querycount;
// this round should not cause a query
weather = await predictions.CurrentWeather();
if (weather.Count == 0 || querycount != previousquerycount)
{
throw new Exception($"Invalid query : {weather.Count} {querycount}");
}
return(0);
}
private async void FrameUpdate(object state)
{
if (Canvas == null)
{
throw new Exception("must have a valid canvas to draw too");
}
// the timer is reentrant, so only allow one instance to run
if (System.Threading.Interlocked.CompareExchange(ref FrameLock, 1, 0) != 0)
{
return;
}
// grab predictions
var weather = await Prediction.CurrentWeather();
var weatherStation = await Prediction.CurrentWeatherStation();
var rowheight = 26f * Ratio;
var fontsize = 18f * Ratio;
var fontname = "Courier New";
var point = new Point()
{
X = 0f, Y = 0f
};
var avoiddups = new HashSet <string>();
try
{
await Canvas.SuspendLayout();
// clear
Canvas.Clear(RGBA.Black);
// current weather
point.Y = (rowheight * 0);
Canvas.Text(RGBA.White, point, "Local weather", fontsize, fontname);
foreach (var w in weather.OrderByDescending(wr => wr.Date))
{
if (avoiddups.Contains(w.Type))
{
continue;
}
switch (w.Type)
{
case "temperature":
point.X = 0f;
point.Y = (rowheight * 1);
Canvas.Text(RGBA.White, point, $"current: {w.Value}°", fontsize, fontname);
break;
case "temperaturetrend":
point.X = (rowheight * 6);
point.Y = (rowheight * 1);
Canvas.Text(RGBA.White, point, $"[{w.StrValue.ToLower()}]", fontsize, fontname);
break;
case "temperaturelow":
point.X = 0f;
point.Y = (rowheight * 2);
Canvas.Text(RGBA.White, point, $"low: {w.Value}°", fontsize, fontname);
break;
case "temperaturehigh":
point.X = 0f;
point.Y = (rowheight * 3);
Canvas.Text(RGBA.White, point, $"high: {w.Value}°", fontsize, fontname);
break;
case "winddirection":
point.X = 0f;
point.Y = (rowheight * 4);
Canvas.Text(RGBA.White, point, $"wind: {w.StrValue}", fontsize, fontname);
break;
case "windspeed":
point.X = (rowheight * 6);
point.Y = (rowheight * 4);
Canvas.Text(RGBA.White, point, $"{w.StrValue.ToLower()}", fontsize, fontname);
break;
case "shortforecast":
point.X = 0f;
point.Y = (rowheight * 5);
var description = SplitString(w.StrValue, maxlength: 23);
Canvas.Text(RGBA.White, point, $"{description.Item1}", fontsize, fontname);
point.Y = (rowheight * 6);
Canvas.Text(RGBA.White, point, $"{description.Item2}", fontsize, fontname);
// debug
if (true)
{
point.X = 0f;
point.Y = (rowheight * 7);
Canvas.Text(RGBA.White, point, $"{w.Date.ToLocalTime():yyyy/MM/dd hh:mm}", fontsize * 0.5f, fontname);
}
break;
}
avoiddups.Add(w.Type);
}
// weather station
if (weatherStation.Count > 0)
{
var padding = (rowheight * 10);
point.Y = (rowheight * 0);
point.X = padding;
Canvas.Text(RGBA.White, point, $"Weather Station", fontsize, fontname);
// capture all the values
var data = new AcuriteData();
foreach (var w in weatherStation.OrderByDescending(s => s.Date))
{
if (data.utcDate == default(DateTime))
{
data.utcDate = w.Date;
}
switch (w.Type)
{
case "outtemperature": if (!data.outTemperature.HasValue)
{
data.outTemperature = w.Value;
}
break;
case "outhumidity": if (!data.outHumidity.HasValue)
{
data.outHumidity = w.Value;
}
break;
case "pressure": if (!data.pressure.HasValue)
{
data.pressure = w.Value;
}
break;
case "pressuretrend": if (data.pressureTrend == null)
{
data.pressureTrend = w.Values;
}
break;
case "winddirection": if (!data.windDirection.HasValue)
{
data.windDirection = w.Value;
}
break;
case "windspeed": if (!data.windSpeed.HasValue)
{
data.windSpeed = w.Value;
}
break;
case "raintotal": if (!data.rainTotal.HasValue)
{
data.rainTotal = w.Value;
}
break;
case "raintotaltrend": if (data.rainTotalTrend == null)
{
data.rainTotalTrend = w.Values;
}
break;
}
}
// display the data
if (data.outTemperature.HasValue)
{
point.X = padding;
point.Y = (rowheight * 1);
Canvas.Text(RGBA.White, point, $"current: {data.outTemperature:f0}°", fontsize, fontname);
}
if (data.outHumidity.HasValue)
{
point.X = padding;
point.Y = (rowheight * 2);
Canvas.Text(RGBA.White, point, $"humidity: {data.outHumidity:f0}%", fontsize, fontname);
}
if (data.pressure.HasValue)
{
point.X = padding;
point.Y = (rowheight * 3);
Canvas.Text(RGBA.White, point, $"pressure: {data.pressure:f2} inHg", fontsize, fontname);
if (data.pressureTrend != null)
{
point.X = padding;
point.Y = (rowheight * 4);
var trend = ReadPressureTrend(data.pressure.Value, data.pressureTrend);
var change = trend.Item2 == PressureChange.Failing ? "↓" : (trend.Item2 == PressureChange.Rising ? "↑" : "-");
Canvas.Text(RGBA.White, point, $" {trend.Item3} {change}", fontsize, fontname);
}
}
if (data.windDirection.HasValue)
{
point.X = padding;
point.Y = (rowheight * 5);
Canvas.Text(RGBA.White, point, $"wind: {DegreesToCompass(data.windDirection.Value)}", fontsize, fontname);
}
if (data.windSpeed.HasValue)
{
point.X = padding + (rowheight * 6);
point.Y = (rowheight * 5);
Canvas.Text(RGBA.White, point, $"{data.windSpeed:f0} mph", fontsize, fontname);
}
if (data.rainTotal.HasValue)
{
point.X = padding;
point.Y = (rowheight * 6);
var rainTotal = data.rainTotal;
if (data.rainTotalTrend != null && data.rainTotalTrend.Length >= 1)
{
rainTotal -= data.rainTotalTrend[data.rainTotalTrend.Length - 1];
}
Canvas.Text(RGBA.White, point, $"rain: {rainTotal:f2} in", fontsize, fontname);
// debug
if (true)
{
point.X = padding;
point.Y = (rowheight * 7);
Canvas.Text(RGBA.White, point, $"{data.utcDate.ToLocalTime():yyyy/MM/dd hh:mm}", fontsize * 0.5f, fontname);
}
}
}
}
finally
{
await Canvas.ResumeLayout();
}
// fire that the frame is done
if (OnRendered != null)
{
OnRendered();
}
// set state back to not running
System.Threading.Volatile.Write(ref FrameLock, 0);
}