public static async Task<XDocument> getAQI()
{
XDocument xd = null;
string url = "http://data.cabq.gov/airquality/aqindex/daily/";
string day = Convert.ToString(System.DateTime.Now.Day);
string year = Convert.ToString(System.DateTime.Now.Year);
string month = Convert.ToString(System.DateTime.Now.Month);
string hour = Convert.ToString(System.DateTime.Now.Hour);
year = year.Remove(0, 2);
string urlEnd = year + month + day;
//tx1.Text = hour;
string result = null;
bool except = false;
string furl = null;
string date = null;
//gets data with furl as the target url
for (int i = System.DateTime.Now.Hour; i >= 0; i--)
{
if (i < 10)
{
furl = url + urlEnd + "0" + Convert.ToString(i) + ".NM2";
date = urlEnd;
}
else
{
furl = url + urlEnd + Convert.ToString(i) + ".NM2";
date = urlEnd;
}
try
{
HttpWebRequest req = (HttpWebRequest)WebRequest.Create(furl);
req.Method = "GET";
WebResponse res = await req.GetResponseAsync();
StreamReader sr = new StreamReader(res.GetResponseStream(), System.Text.Encoding.UTF8);
result = sr.ReadToEnd();
sr.Dispose();
res.Dispose();
}
catch (Exception ex)
{
// handle error
except = true;
}
if (except == false)
break;
}
if (except == true)// nothing was recieved, return old file or create one if it doesnt exist
{
StorageFolder sfProject = Package.Current.InstalledLocation;
StorageFolder sfLocal = ApplicationData.Current.LocalFolder;
Stream sr, sw;
bool bFileExists;
try
{
sw = await sfLocal.OpenStreamForWriteAsync(filename, CreationCollisionOption.FailIfExists);
sw.Dispose();
bFileExists = false;
}
catch
{
bFileExists = true;
}
if (bFileExists == false)
{
sr = await sfProject.OpenStreamForReadAsync(filename);
sw = await sfLocal.OpenStreamForWriteAsync(filename, CreationCollisionOption.ReplaceExisting);
await sr.CopyToAsync(sw);
sr.Dispose();
sw.Dispose();
}
sr = await sfLocal.OpenStreamForReadAsync(filename);
xd = XDocument.Load(sr);
sr.Dispose();
return xd;
}
string[] param = result.Split('\n');
int ind = 0;
int ine = 0;
List<string[]> data = new List<string[]>();
while (ind != -1)
{
ind = Array.IndexOf(param, "BEGIN_GROUP");
ine = Array.IndexOf(param, "END_GROUP");
data.Add(param.Skip(ind).Take(ine - ind + 1).ToArray());
param = param.Skip(ine + 1).Take(param.Length).ToArray();
}
data.RemoveAt(data.Count - 1);
string[] final = new string[19];
int offset = 0;
for (int i = 0; i < data.Count; i++)// goes through all types, ozone, co2,ect..
{
string[] tempArray = data.ElementAt(i);
string type = tempArray[1].Remove(0, 9);
string[] tempVal = new string[50];
string[] tempVal2 = new string[50];
int count = 0;
double totalSum = 0;
for (int h = 14; h < tempArray.Length; h = h + 2)//goes through all locations, odd check ignores good/bad location values
{
if (tempArray[h].Equals("END_DATA"))
break;
tempVal = tempArray[h].Split(',').Skip(2).ToArray();
tempVal2 = tempArray[h + 1].Split(',').Skip(2).ToArray();
double sum = 0;
double cur;
int goodCount = 0;
for (int f = 0; f < tempVal.Length; f++)
{
if (tempVal2[f].Trim().Equals("G"))
{
if (double.TryParse(tempVal[f], out cur))
{
sum = sum + cur;
goodCount++;
}
}
}
totalSum = totalSum + (sum / goodCount);
count++;
}
totalSum = totalSum / count;
final[i + offset] = type;
final[i + 1 + offset] = Convert.ToString(totalSum);
final[i + 2 + offset] = null;
offset = offset + 2;
}
final[18] = date;
xd = await update(final);
return xd;
}
public async Task OpenFile(Stream stream)
{
var rope = new Rope<char>();
using (var reader = new StreamReader(stream))
using (var writer = new Editor.RopeWriter(rope))
{
await reader.CopyToAsync(writer);
}
Document.Replace(0, Document.TextLength, new RopeTextSource(rope));
}