public static async Task <DailyData> LoadTideData(DateTime today, Location location)
{
var cachedData = FileCache.GetDailyData(today, location);
if (cachedData != null)
{
return(cachedData);
}
List <DailyData> data = new List <DailyData>();
using (var client = new System.Net.WebClient())
{
var startDate = today;
var values = new System.Collections.Specialized.NameValueCollection();
values["site"] = String.Format("Maryland&station_number={0}", ((Int32)location));
values["month"] = String.Format("{0}&year={1}", today.Month, today.Year);
values["start_date"] = startDate.Day.ToString();
values["maximum_days"] = "14";
// get response
var response = client.UploadValues("http://www.saltwatertides.com/cgi-local/maryland.cgi", values);
HtmlAgilityPack.HtmlDocument html = new HtmlAgilityPack.HtmlDocument();
html.LoadHtml(Encoding.Default.GetString(response));
var root = html.DocumentNode;
var content = root.Descendants("PRE");
System.IO.StringReader reader = new StringReader(content.First().InnerText);
var line = string.Empty;
while (line != null)
{
line = reader.ReadLine();
if (String.IsNullOrWhiteSpace(line))
{
continue;
}
if (line.StartsWith("Day"))
{
continue;
}
if (line.Contains("Sunset"))
{
continue;
}
int day = 0;
if (!int.TryParse(line.Substring(4, 2), out day))
{
throw new ApplicationException("Cannot parse day");
}
DailyData.TideType type = DailyData.TideType.Low;
if (!Enum.TryParse <DailyData.TideType>(line.Substring(11, 4), out type))
{
throw new ApplicationException("Cannot parse tide type");
}
DateTime timeOfTide = new DateTime();
if (!DateTime.TryParse(line.Substring(17, 8), out timeOfTide))
{
throw new ApplicationException("Cannot parse time of tide");
}
DateTime?timeOfSun = null;
if (line.Length > 42)
{
DateTime sun;
if (!DateTime.TryParse(line.Substring(35, 8), out sun))
{
throw new ApplicationException("Cannot parse time of sun");
}
timeOfSun = sun;
}
DailyData dailyData;
//First Record
if (!data.Any(x => x.DayOfMonth == day))
{
data.Add(new DailyData(day, startDate));
}
dailyData = data.First(x => x.DayOfMonth == day);
if (type == DailyData.TideType.Low)
{
if (dailyData.FirstLowTide.HasValue)
{
dailyData.SecondLowTide = timeOfTide;
}
else
{
dailyData.FirstLowTide = timeOfTide;
}
}
else
{
if (dailyData.FirstHighTide.HasValue)
{
dailyData.SecondHighTide = timeOfTide;
}
else
{
dailyData.FirstHighTide = timeOfTide;
}
}
if (timeOfSun.HasValue)
{
if (!dailyData.SunRise.HasValue)
{
dailyData.SunRise = timeOfSun;
}
else
{
dailyData.SunSet = timeOfSun;
}
}
}
Data = data;
}
if (data.Any())
{
foreach (var d in data)
{
FileCache.StoreDailyData(d, d.Date, location);
}
}
return(data.First());
}
public static async Task<DailyData> LoadTideData(DateTime today, Location location)
{
var cachedData = Cache.GetDailyData(today, location);
if (cachedData != null)
return cachedData;
List<DailyData> data = new List<DailyData>();
//var responseJson = await httpClient.GetStringAsync(url);
using (var client = HttpClientFactory.Create())
{
var startDate = today;
IList<KeyValuePair<string, string>> nameValueCollection = new List<KeyValuePair<string, string>>();
nameValueCollection.Add(new KeyValuePair<string, string>("site", String.Format("Maryland&station_number={0}", ((Int32)location))));
nameValueCollection.Add(new KeyValuePair<string, string>("month", String.Format("{0}&year={1}", today.Month, today.Year)));
nameValueCollection.Add(new KeyValuePair<string, string>("start_date", startDate.Day.ToString()));
nameValueCollection.Add(new KeyValuePair<string, string>("maximum_days", "2"));
// get response
var response = await client.PostAsync("https://www.saltwatertides.com/cgi-local/maryland.cgi", new FormUrlEncodedContent(nameValueCollection));
var contents = await response.Content.ReadAsStringAsync();
HtmlAgilityPack.HtmlDocument html = new HtmlAgilityPack.HtmlDocument();
html.LoadHtml(contents);
var root = html.DocumentNode;
var content = root.Descendants("PRE");
System.IO.StringReader reader = new StringReader(content.First().InnerText);
var line = string.Empty;
while (line != null)
{
line = reader.ReadLine();
if (String.IsNullOrWhiteSpace(line))
continue;
if (line.StartsWith("Day"))
continue;
if (line.Contains("Sunset"))
continue;
int day = 0;
if (!int.TryParse(line.Substring(4, 2), out day))
throw new Exception("Cannot parse day");
DailyData.TideType type = DailyData.TideType.Low;
if (!Enum.TryParse<DailyData.TideType>(line.Substring(11, 4), out type))
throw new Exception("Cannot parse tide type");
DateTime timeOfTide = new DateTime();
if (!DateTime.TryParse(line.Substring(17, 8), out timeOfTide))
throw new Exception("Cannot parse time of tide");
DateTime? timeOfSun = null;
if (line.Length > 42)
{
DateTime sun;
if (!DateTime.TryParse(line.Substring(35, 8), out sun))
throw new Exception("Cannot parse time of sun");
timeOfSun = sun;
}
DailyData dailyData;
//First Record
if (!data.Any(x => x.DayOfMonth == day))
data.Add(new DailyData(day, startDate));
dailyData = data.First(x => x.DayOfMonth == day);
if (type == DailyData.TideType.Low)
{
if (dailyData.FirstLowTide.HasValue)
dailyData.SecondLowTide = timeOfTide;
else
dailyData.FirstLowTide = timeOfTide;
}
else
{
if (dailyData.FirstHighTide.HasValue)
dailyData.SecondHighTide = timeOfTide;
else
dailyData.FirstHighTide = timeOfTide;
}
if (timeOfSun.HasValue)
{
if (!dailyData.SunRise.HasValue)
dailyData.SunRise = timeOfSun;
else
dailyData.SunSet = timeOfSun;
}
}
Data = data;
}
if (data.Any())
foreach (var d in data)
Cache.StoreDailyData(d, d.Date, location);
return data.First();
}
