public GlucoseFetchResult GetLatestReading()
{
var fetchResult = new GlucoseFetchResult();
try
{
if (_config.FetchMethod == FetchMethod.DexcomShare)
{
GetFetchResultFromDexcom(fetchResult);
}
else if (_config.FetchMethod == FetchMethod.NightscoutApi)
{
GetFetchResultFromNightscout(fetchResult);
}
else
{
_logger.LogError("Invalid fetch method specified.");
throw new InvalidOperationException("Fetch Method either not specified or invalid specification.");
}
}
catch (Exception ex)
{
_logger.LogError("Failed to get data. {0}", ex);
fetchResult = GetDefaultFetchResult();
}
return(fetchResult);
}
private GlucoseFetchResult GetFetchResultFromNightscout(GlucoseFetchResult fetchResult)
{
var request = new HttpRequestMessage
{
RequestUri = new Uri($"{_config.NightscoutUrl}/api/v1/entries/sgv?count=1" + (!string.IsNullOrWhiteSpace(_config.NightscoutAccessToken) ? $"&token={_config.NightscoutAccessToken}" : "")),
Method = HttpMethod.Get,
};
try
{
var response = new HttpClient().SendAsync(request).Result;
var content = response.Content.ReadAsStringAsync().Result.Split('\t');
Regex rgx = new Regex("[^a-zA-Z]");
var time = content[0].ParseNightscoutDate();
var trendString = rgx.Replace(content[3], "");
var val = int.Parse(content[2]);
fetchResult.Value = val;
fetchResult.Time = time;
fetchResult.TrendIcon = trendString.GetTrendArrowFromNightscout();
}
catch (Exception ex)
{
_logger.LogError("Nightscout fetching failed or received incorrect format. {0}", ex);
fetchResult = GetDefaultFetchResult();
}
return(fetchResult);
}
public async Task <GlucoseFetchResult> GetLatestReading()
{
var fetchResult = new GlucoseFetchResult();
try
{
if (_config.FetchMethod == FetchMethod.DexcomShare)
{
await GetFetchResultFromDexcom(fetchResult).ConfigureAwait(false);
}
else if (_config.FetchMethod == FetchMethod.NightscoutApi)
{
await GetFetchResultFromNightscout(fetchResult).ConfigureAwait(false);
}
else
{
_logger.LogError("Invalid fetch method specified.");
throw new InvalidOperationException("Fetch Method either not specified or invalid specification.");
}
}
catch (Exception ex)
{
_logger.LogError("Failed to get data. {0}", ex);
fetchResult = GetDefaultFetchResult();
}
fetchResult.UnitDisplayType = _config.UnitDisplayType;
if (fetchResult.UnitDisplayType == GlucoseUnitType.MMOL && !fetchResult.Value.ToString().Contains(".")) // If decimal value, then it is already MMOL
{
fetchResult.Value /= 18;
}
return(fetchResult);
}
private void ConvertMGtoMMOL(GlucoseFetchResult fetchResult)
{
if (!fetchResult.Value.ToString().Contains(".")) // If decimal value, then it is already MMOL
{
fetchResult.Value /= 18;
}
}
private void CreateIcon()
{
IsCriticalLow = false;
var service = new GlucoseFetchService(new GlucoseFetchConfiguration
{
DexcomUsername = Constants.DexcomUsername,
DexcomPassword = Constants.DexcomPassword,
FetchMethod = Constants.FetchMethod,
NightscoutUrl = Constants.NightscoutUrl,
NightscoutAccessToken = Constants.AccessToken,
UnitDisplayType = Constants.GlucoseUnitType
}, _logger);
FetchResult = service.GetLatestReading();
var value = FetchResult.Value.ToString();
if (value.Contains("."))
{
value = FetchResult.Value.ToString("0.0");
}
trayIcon.Text = $"{value} {FetchResult.Time.ToLongTimeString()} {FetchResult.TrendIcon}";
if (FetchResult.Value <= Constants.CriticalLowBg)
{
IsCriticalLow = true;
}
_iconService.CreateTextIcon(FetchResult.Value, IsCriticalLow, trayIcon);
}
public static string GetFormattedStringValue(this GlucoseFetchResult fetchResult)
{
var value = fetchResult.Value.ToString();
if (value.Contains("."))
{
value = fetchResult.Value.ToString("0.0");
}
return(value);
}
private GlucoseFetchResult GetFetchResultFromDexcom(GlucoseFetchResult fetchResult)
{
// Get Session Id
var request = new HttpRequestMessage
{
RequestUri = new Uri("https://share1.dexcom.com/ShareWebServices/Services/General/LoginPublisherAccountByName"),
Method = HttpMethod.Post,
Content = new StringContent("{\"accountName\":\"" + _config.DexcomUsername + "\"," +
"\"applicationId\":\"d8665ade-9673-4e27-9ff6-92db4ce13d13\"," +
"\"password\":\"" + _config.DexcomPassword + "\"}", Encoding.UTF8, "application/json")
};
try
{
var client = new HttpClient();
var response = client.SendAsync(request).Result;
var sessionId = response.Content.ReadAsStringAsync().Result.Replace("\"", "");
request = new HttpRequestMessage
{
RequestUri = new Uri($"https://share1.dexcom.com/ShareWebServices/Services/Publisher/ReadPublisherLatestGlucoseValues?sessionId={sessionId}&minutes=1440&maxCount=1"),
Method = HttpMethod.Post
};
var result = client.SendAsync(request).Result.Content.ReadAsStringAsync().Result.RemoveUnnecessaryCharacters().Split(',');
// Get raw data seperated
var unixTime = result[1].Split('e')[1];
var trend = result[2].Split(':')[1];
var stringVal = result[3].Split(':')[1];
// Convert raw to correct data
DateTime localTime = DateTime.MinValue;
if (!string.IsNullOrWhiteSpace(unixTime))
{
localTime = DateTimeOffset.FromUnixTimeMilliseconds(long.Parse(unixTime)).LocalDateTime;
}
int.TryParse(stringVal, out int val);
var trendIcon = trend.GetTrendArrowFromDexcom();
fetchResult.Value = val;
fetchResult.Time = localTime;
fetchResult.TrendIcon = trendIcon;
}
catch (Exception ex)
{
_logger.LogError("Dexcom fetching failed or received incorrect format. {0}", ex);
fetchResult = GetDefaultFetchResult();
}
return(fetchResult);
}
private async Task CreateIcon()
{
IsCriticalLow = false;
var service = new GlucoseFetchService(new GlucoseFetchConfiguration
{
DexcomUsername = Constants.DexcomUsername,
DexcomPassword = Constants.DexcomPassword,
FetchMethod = Constants.FetchMethod,
NightscoutUrl = Constants.NightscoutUrl,
NightscoutAccessToken = Constants.AccessToken,
UnitDisplayType = Constants.GlucoseUnitType
}, _logger);
PreviousFetchResult = FetchResult;
FetchResult = await service.GetLatestReading().ConfigureAwait(false);
trayIcon.Text = GetGlucoseMessage();
if (FetchResult.Value <= Constants.CriticalLowBg)
{
IsCriticalLow = true;
}
_iconService.CreateTextIcon(FetchResult, IsCriticalLow, trayIcon);
if (PreviousFetchResult != null &&
PreviousFetchResult.TrendIcon != "⮅" && PreviousFetchResult.TrendIcon != "⮇" &&
(FetchResult.TrendIcon == "⮅" || FetchResult.TrendIcon == "⮇"))
{
// Show balloon when the trend changes to double arrow
trayIcon.ShowBalloonTip(3000, "Glucose", $"{FetchResult.TrendIcon} {FetchResult.Value}", ToolTipIcon.Warning);
}
if (PreviousFetchResult != null &&
PreviousFetchResult.Value < Constants.HighBg && FetchResult.Value >= Constants.HighBg)
{
// Show balloon when it crosses the HighBG threshold
trayIcon.ShowBalloonTip(3000, "Glucose", $"{FetchResult.TrendIcon} {FetchResult.Value}", ToolTipIcon.Warning);
}
if (PreviousFetchResult != null &&
PreviousFetchResult.Value > Constants.LowBg && FetchResult.Value <= Constants.LowBg)
{
// Show balloon when it crosses the LowBG threshold
trayIcon.ShowBalloonTip(3000, "Glucose", $"{FetchResult.TrendIcon} {FetchResult.Value}", ToolTipIcon.Warning);
}
}
private async Task <GlucoseFetchResult> GetFetchResultFromDexcom(GlucoseFetchResult fetchResult)
{
// Get Session Id
var request = new HttpRequestMessage(HttpMethod.Post, new Uri($"https://{_dexcomShareHost}/ShareWebServices/Services/General/LoginPublisherAccountByName"))
{
Content = new StringContent("{\"accountName\":\"" + _config.DexcomUsername + "\"," +
"\"applicationId\":\"d8665ade-9673-4e27-9ff6-92db4ce13d13\"," +
"\"password\":\"" + _config.DexcomPassword + "\"}", Encoding.UTF8, "application/json")
};
var client = new HttpClient();
try
{
var response = await client.SendAsync(request).ConfigureAwait(false);
var sessionId = (await response.Content.ReadAsStringAsync().ConfigureAwait(false)).Replace("\"", "");
request = new HttpRequestMessage(HttpMethod.Post, new Uri($"https://{_dexcomShareHost}/ShareWebServices/Services/Publisher/ReadPublisherLatestGlucoseValues?sessionId={sessionId}&minutes=1440&maxCount=1"));
var result = JsonConvert.DeserializeObject <List <DexcomResult> >(await(await client.SendAsync(request).ConfigureAwait(false)).Content.ReadAsStringAsync().ConfigureAwait(false)).First();
var unixTime = string.Join("", result.ST.Where(char.IsDigit));
var trend = result.Trend;
fetchResult.Value = result.Value;
fetchResult.Time = !string.IsNullOrWhiteSpace(unixTime) ? DateTimeOffset.FromUnixTimeMilliseconds(long.Parse(unixTime)).LocalDateTime : DateTime.MinValue;
fetchResult.TrendIcon = trend.GetTrendArrow();
response.Dispose();
}
catch (Exception ex)
{
_logger.LogError("Dexcom fetching failed or received incorrect format. {0}", ex);
fetchResult = GetDefaultFetchResult();
}
finally
{
client.Dispose();
request.Dispose();
}
return(fetchResult);
}
private async Task CreateIcon()
{
IsCriticalLow = false;
var service = new GlucoseFetchService(new GlucoseFetchConfiguration
{
DexcomUsername = Constants.DexcomUsername,
DexcomPassword = Constants.DexcomPassword,
FetchMethod = Constants.FetchMethod,
NightscoutUrl = Constants.NightscoutUrl,
NightscoutAccessToken = Constants.AccessToken,
UnitDisplayType = Constants.GlucoseUnitType
}, _logger);
FetchResult = await service.GetLatestReading().ConfigureAwait(false);
trayIcon.Text = GetGlucoseMessage();
if (FetchResult.Value <= Constants.CriticalLowBg)
{
IsCriticalLow = true;
}
_iconService.CreateTextIcon(FetchResult, IsCriticalLow, trayIcon);
}
private async Task <GlucoseFetchResult> GetFetchResultFromNightscout(GlucoseFetchResult fetchResult)
{
var request = new HttpRequestMessage(HttpMethod.Get, new Uri($"{_config.NightscoutUrl}/api/v1/entries/sgv?count=1" + (!string.IsNullOrWhiteSpace(_config.NightscoutAccessToken) ? $"&token={_config.NightscoutAccessToken}" : "")));
request.Headers.Accept.Add(new System.Net.Http.Headers.MediaTypeWithQualityHeaderValue("application/json"));
var client = new HttpClient();
try
{
var response = await client.SendAsync(request).ConfigureAwait(false);
var result = await response.Content.ReadAsStringAsync().ConfigureAwait(false);
var content = JsonConvert.DeserializeObject <List <NightScoutResult> >(result).FirstOrDefault();
fetchResult.Value = content.sgv;
fetchResult.Time = DateTime.Parse(content.dateString);
fetchResult.TrendIcon = content.direction.GetTrendArrow();
if (fetchResult.TrendIcon.Length > 1)
{
_logger.LogWarning($"Un-expected value for direction/Trend {content.direction}");
}
response.Dispose();
}
catch (Exception ex)
{
_logger.LogError("Nightscout fetching failed or received incorrect format. {0}", ex);
fetchResult = GetDefaultFetchResult();
}
finally
{
client.Dispose();
request.Dispose();
}
return(fetchResult);
}
public static string StaleMessage(this GlucoseFetchResult fetchResult, int minutes)
{
var ts = System.DateTime.Now - fetchResult.Time;
return(ts.TotalMinutes > minutes ? $"\r\n{ts.TotalMinutes:#} minutes ago" : "");
}
public static bool IsStale(this GlucoseFetchResult fetchResult, int minutes)
{
var ts = System.DateTime.Now - fetchResult.Time;
return(ts.TotalMinutes > minutes);
}
private void ConvertMGtoMMOL(GlucoseFetchResult fetchResult) => fetchResult.Value /= 18;
