public async Task <UnlockedPosts> getPostAttachmentAsync(int obsId)
{
await sem.WaitAsync();
Uri uri = new Uri(string.Format("https://saabstudent2020.azurewebsites.net/observation/" + obsId + "/attachment", string.Empty));
HttpResponseMessage response = await client.GetAsync(uri);
UnlockedPosts temp = null;
if (response.IsSuccessStatusCode)
{
string content = await response.Content.ReadAsStringAsync();
temp = MakeUnlockedPost(content);
if (temp == null)
{
switch (Device.RuntimePlatform)
{
case Device.Android:
DependencyService.Get <SnackInterface>().SnackbarShow("Post #" + obsId + " does not have an image");
break;
case Device.iOS:
CrossToastPopUp.Current.ShowToastMessage("Post #" + obsId + " does not have an image");
break;
default:
break;
}
}
else
{
temp.obsID = obsId;
}
sem.Release();
return(temp);
}
switch (Device.RuntimePlatform)
{
case Device.Android:
DependencyService.Get <SnackInterface>().SnackbarShow("Failed to unlock post #" + obsId);
break;
case Device.iOS:
CrossToastPopUp.Current.ShowToastMessage("Failed to unlock post #" + obsId);
break;
default:
break;
}
sem.Release();
return(temp);
}
public static async Task unlockTracker()
{
if (App.user != null && App.conn != null && GlobalFuncs.mvm.tracked != null && prevUnlock != GlobalFuncs.mvm.tracked.Id)
{
await Task.Run(async() => {
prevUnlock = GlobalFuncs.mvm.tracked.Id;
int temp = GlobalFuncs.mvm.tracked.Id;
if (!CrossConnectivity.Current.IsConnected)
{
switch (Device.RuntimePlatform)
{
case Device.Android:
DependencyService.Get <SnackInterface>().SnackbarShowIndefininte("Internet is not available");
break;
case Device.iOS:
CrossToastPopUp.Current.ShowToastMessage("Internet is not available");
break;
default:
break;
}
while (!CrossConnectivity.Current.IsConnected)
{
await Task.Delay(100);
}
switch (Device.RuntimePlatform)
{
case Device.Android:
DependencyService.Get <SnackInterface>().SnackbarShow("Internet connection has been established");
break;
case Device.iOS:
CrossToastPopUp.Current.ShowToastMessage("Internet connection has been established");
break;
default:
break;
}
}
UnlockedPosts attachment = await App.conn.getPostAttachmentAsync(temp);
uvm.addUnlockedPost(mvm.RemovePost(temp), attachment);
GlobalFuncs.mvm.tracked = null;
});
}
}
public void addUnlockedPost(PostListElement x, UnlockedPosts attachment)
{
App.user.unlockedSet.Add(x.Id);
images.Add(attachment.imgBytes);
Items.Add(new PostListElement()
{
Id = x.Id,
Subject = x.Subject,
Body = x.Body,
Created = x.Created,
LastUpdated = x.LastUpdated,
Position = x.Position,
Dist = "",
Img = ImageSource.FromStream(() => new MemoryStream(attachment.imgBytes))
});
App.user.saveImage(x.Id, attachment.imgBytes);
}
private UnlockedPosts MakeUnlockedPost(string content)
{
if (content.Length < 100)
{
return(null);
}
string id = "";
int counter = 7;
while (content[counter] != ',')
{
id += content[counter];
counter++;
}
counter = 23 + id.Length;
content = content.Substring(counter);
content = content.Remove(content.Length - 3, 3);
UnlockedPosts temp = new UnlockedPosts(int.Parse(id), content);
return(temp);
}
