public static DistanceConfigModel GetData()
{
var model = new DistanceConfigModel();
XDocument doc = XDocument.Load(XmlPath);
var status = doc.Root.Element("status");
if (status != null)
{
model.Status = Int32.Parse(status.Value);
}
var from = doc.Root.Element("from");
if (from != null)
{
model.From = Int32.Parse(from.Value);
}
var to = doc.Root.Element("to");
if (to != null)
{
model.To = Int32.Parse(to.Value);
}
return model;
}
public static void SetData(DistanceConfigModel model)
{
XDocument doc = XDocument.Load(XmlPath);
var status = doc.Root.Element("status");
if (status != null)
{
status.Value = model.Status + "";
}
var from = doc.Root.Element("from");
if (from != null)
{
from.Value = model.From + "";
}
var to = doc.Root.Element("to");
if (to != null)
{
to.Value = model.To + "";
}
doc.Save(XmlPath);
}
public static void CalculateDistance()
{
var model = DistanceConfigHelper.GetData();
if (model.Status == (int)DistanceStatus.Finish)
{
return;
}
int i = model.From;
int j = model.To;
var math = new MathHelper();
using (var context = new SmartBuyEntities())
{
var markets = context.Markets
.Where(x => x.IsActive && x.Latitude != null && x.Longitude != null)
.ToList();
while (true)
{
var lat1 = markets[i].Latitude.Value;
var lng1 = markets[i].Longitude.Value;
var lat2 = markets[j].Latitude.Value;
var lng2 = markets[j].Longitude.Value;
var distance = math.TravelDistance(lat1, lng1, lat2, lng2);
// OK
if (distance != -1)
{
var m1 = markets[i];
var m2 = markets[j];
var tmp = context.MarketDistances
.FirstOrDefault(x => x.FromMarket == m1.Id && x.ToMarket == m2.Id);
if (tmp != null)
{
tmp.Distance = distance;
}
else
{
var mDistance = new MarketDistance
{
FromMarket = markets[i].Id,
ToMarket = markets[j].Id,
Distance = distance
};
context.MarketDistances.Add(mDistance);
}
j++;
if (j == markets.Count)
{
i++;
// Finish
if (i == markets.Count - 1)
{
DistanceConfigHelper.Finish();
context.SaveChanges();
return;
}
j = i + 1;
}
}
else
{
// Something's wrong, out of quota
var savePoint = new DistanceConfigModel
{
From = i,
To = j,
Status = (int) DistanceStatus.Going
};
// Save
DistanceConfigHelper.SetData(savePoint);
context.SaveChanges();
return;
}
}
}
}
