public async void RunWatsonService(ScaleItem scaleItem)
{
var uri = new Uri(string.Format("http://smartshelf.mybluemix.net/prediction/user/demouser/shelf/{0}/scale/{1}", scaleItem.ShelfId, scaleItem.ScaleId));
try
{
var response = await client.GetAsync(uri);
if (response.IsSuccessStatusCode)
{
var content = await response.Content.ReadAsStringAsync();
var prediction = JsonConvert.DeserializeObject <WatsonNotification>(content);
if (prediction.showNotification)
{
lblPredication.TextColor = Color.Red;
lblPredication.Text = "Product is almost out, click on cart to order more!";
}
else
{
lblPredication.TextColor = Color.Blue;
lblPredication.Text = "Product supply is ok.";
}
var seconds = TimeSpan.FromSeconds(10);
Device.StartTimer(seconds, () =>
{
lblPredication.Text = "";
return(false);
});
}
else
{
}
}
catch (Exception ex)
{
// do nothing
return;
}
}
public ScaleItemContentView(ScaleItem scaleItem)
{
try
{
client = new HttpClient();
this.BindingContext = scaleItem;
this.Item = scaleItem;
InitializeComponent();
double percent = 0;
if (scaleItem.CurrentWeight > 0 && scaleItem.StartingWeight > 0)
{
percent = 100 * (scaleItem.CurrentWeight / scaleItem.StartingWeight);
}
Color pieColor = Color.Green;
if (percent < 15)
{
pieColor = Color.Red;
}
else if (percent < 50)
{
pieColor = Color.Yellow;
}
var pie = new Cross.Pie.Forms.CrossPie();
pie.Title = string.Empty;
pie.HeightRequest = 150;
pie.WidthRequest = 150;
pie.IsPercentVisible = false;
pie.IsTitleOnTop = false;
pie.IsValueVisible = false;
pie.StartAngle = -90;
pie.Add(new Cross.Pie.Forms.PieItem {
Title = string.Empty, Value = scaleItem.CurrentWeight, Color = pieColor
});
pie.Add(new Cross.Pie.Forms.PieItem {
Title = string.Empty, Value = (scaleItem.StartingWeight - scaleItem.CurrentWeight), Color = Color.Gray
});
pie.Update();
pieGraphContentView.Content = pie;
var infoImage = new Image();
infoImage.Source = "info_circle_18_36.png";
var tapGestureRecognizer1 = new TapGestureRecognizer();
tapGestureRecognizer1.Tapped += (s, e) =>
{
startTimer = false;
if (cts != null)
{
cts.Cancel();
}
var editScalePage = new EditScalePage();
editScalePage.ScaleItem = scaleItem;
App.MasterDetail.Detail = new NavigationPage(editScalePage);
};
infoImage.GestureRecognizers.Add(tapGestureRecognizer1);
AbsoluteLayout.SetLayoutBounds(infoImage, new Rectangle(1f, 0f, AbsoluteLayout.AutoSize, AbsoluteLayout.AutoSize));
AbsoluteLayout.SetLayoutFlags(infoImage, AbsoluteLayoutFlags.PositionProportional);
topAbsoluteLayout.Children.Add(infoImage);
// Watson predictive service
var watsonImage = new Image();
watsonImage.Source = "watson_36.png";
var tapGestureRecognizerWatson = new TapGestureRecognizer();
tapGestureRecognizerWatson.Tapped += (s, e) =>
{
RunWatsonService(scaleItem);
};
watsonImage.GestureRecognizers.Add(tapGestureRecognizerWatson);
AbsoluteLayout.SetLayoutBounds(watsonImage, new Rectangle(1f, 1f, AbsoluteLayout.AutoSize, AbsoluteLayout.AutoSize));
watsonImage.Margin = new Thickness(0, 0, 105, 5);
AbsoluteLayout.SetLayoutFlags(watsonImage, AbsoluteLayoutFlags.PositionProportional);
topAbsoluteLayout.Children.Add(watsonImage);
var shoppingCartImage = new Image();
shoppingCartImage.Source = "shopping_cart_plus_36.png";
var tapGestureRecognizer = new TapGestureRecognizer();
tapGestureRecognizer.Tapped += (s, e) =>
{
startTimer = false;
if (cts != null)
{
cts.Cancel();
}
Device.OpenUri(new Uri(scaleItem.url));
};
shoppingCartImage.GestureRecognizers.Add(tapGestureRecognizer);
shoppingCartImage.Margin = new Thickness(0, 0, 5, 5);
AbsoluteLayout.SetLayoutBounds(shoppingCartImage, new Rectangle(1f, 1f, AbsoluteLayout.AutoSize, AbsoluteLayout.AutoSize));
AbsoluteLayout.SetLayoutFlags(shoppingCartImage, AbsoluteLayoutFlags.PositionProportional);
topAbsoluteLayout.Children.Add(shoppingCartImage);
var seconds = TimeSpan.FromSeconds(5);
Device.StartTimer(seconds, () =>
{
if (startTimer)
{
cts = new CancellationTokenSource();
try
{
ReloadScale(scaleItem, scaleItem.ShelfId);
//lblWeight.Text = lblWeight.Text + ".";
// call your method to check for notifications here
//LoadScales();
// Returning true means you want to repeat this timer
cts = null;
return(true);
}
catch (Exception ex)
{
return(true);
}
}
else
{
return(false);
}
});
}
catch (Exception ex)
{
//do nothing
}
}
public async void ReloadScale(ScaleItem scaleItem, string shelfID)
{
var uri = new Uri(string.Format("http://smartshelf.mybluemix.net/main/shelf/{0}", shelfID));
try
{
var response = await client.GetAsync(uri);
if (response.IsSuccessStatusCode)
{
var content = await response.Content.ReadAsStringAsync();
var shelf = JsonConvert.DeserializeObject <Shelf>(content);
for (int i = 0; i < shelf.scales.Count; i++)
{
Scale s = shelf.scales[i];
if (s.id.ToString() == scaleItem.ScaleId)
{
this.BindingContext = scaleItem;
this.Item = scaleItem;
double tempDouble = 0;
double weight1 = 0;
if (double.TryParse(s.weight, out tempDouble))
{
weight1 = tempDouble;
}
double percent = 0;
if (weight1 > 0 && scaleItem.StartingWeight > 0)
{
percent = 100 * (weight1 / scaleItem.StartingWeight);
}
Color pieColor = Color.Green;
if (percent < 15)
{
pieColor = Color.Red;
}
else if (percent < 50)
{
pieColor = Color.Yellow;
}
lblWeight.Text = string.Format("Current Weight: {0}g", s.weight);
var pie = new Cross.Pie.Forms.CrossPie();
pie.Title = string.Empty;
pie.HeightRequest = 150;
pie.WidthRequest = 150;
pie.IsPercentVisible = false;
pie.IsTitleOnTop = false;
pie.IsValueVisible = false;
pie.StartAngle = -90;
pie.Add(new Cross.Pie.Forms.PieItem {
Title = string.Empty, Value = weight1, Color = pieColor
});
pie.Add(new Cross.Pie.Forms.PieItem {
Title = string.Empty, Value = (scaleItem.StartingWeight - weight1), Color = Color.Gray
});
pie.Update();
pieGraphContentView.Content = pie;
}
}
}
}
catch (Exception ex)
{
// do nothing
return;
}
}
public static async Task <bool> Authenticate(string userName, string password, HttpClient client)
{
try
{
var uri = new Uri(string.Format("http://smartshelf.mybluemix.net/main/loginGetDoc?username={0}&password={1}", userName, password));
var response = await client.GetAsync(uri);
if (response.IsSuccessStatusCode)
{
var content = await response.Content.ReadAsStringAsync();
userDoc = JsonConvert.DeserializeObject <SmartShelfDoc>(content);
string perc = "";
long tempPerc = 0;
ShelfItem tempShelf;
ScaleItem tempScale;
double tmpDouble;
DateTime tmpDate;
shelfItems.Clear();
foreach (var shelf in userDoc.shelfs)
{
tempShelf = new ShelfItem();
tempShelf.Id = shelf.id;
tempShelf.Name = shelf.name;
tempShelf.Scales = new List <ScaleItem>();
foreach (var scale in shelf.scales)
{
tempScale = new ScaleItem();
tempScale.ScaleId = scale.id.ToString();
tempScale.Name = scale.id.ToString();
tmpDouble = 0;
if (double.TryParse(scale.weight, out tmpDouble))
{
tempScale.CurrentWeight = tmpDouble;
}
else
{
tempScale.CurrentWeight = 0;
}
tmpDate = DateTime.Now.AddDays(7);
if (DateTime.TryParse(scale.estimatedDate, out tmpDate))
{
tempScale.EstimateRefillDate = tmpDate;
}
else
{
tempScale.EstimateRefillDate = DateTime.Now.AddDays(7);
}
if (DateTime.TryParse(scale.registerDate, out tmpDate))
{
tempScale.StartingDate = tmpDate;
}
else
{
tempScale.StartingDate = DateTime.Now;
}
double calcPerc = 0;
double temp;
await LoadProducts(client);
if (!string.IsNullOrEmpty(scale.productId))
{
var product = products.Where(p => p.id == scale.productId).FirstOrDefault();
if (product != null)
{
if (double.TryParse(product.weight, out temp))
{
tempScale.StartingWeight = temp;
}
if (temp != 0)
{
calcPerc = tempScale.CurrentWeight * 100 / temp;
perc = string.Format("{0:0.00}", calcPerc) + "%";
}
tempScale.Name = product.name;
tempScale.url = product.url;
}
}
tempScale.ScaleName = scale.id.ToString();
tempScale.ShelfName = tempShelf.Name;
tempScale.ShelfId = tempShelf.Id;
tempShelf.Scales.Add(tempScale);
}
shelfItems.Add(tempShelf);
}
return(true);
}
else
{
return(false);
}
}
catch (Exception ex)
{
return(false);
}
}