private async void AddContact(object sender, EventArgs e)
{
var result = new List <UserModel>();
var documents = await CrossCloudFirestore.Current
.Instance
.GetCollection("users")
.WhereEqualsTo("email", dataClass.loggedInUser.email)
.WhereArrayContains("contacts", tempemail.uid)
.GetDocumentsAsync();
foreach (var documentChange in documents.DocumentChanges)
{
var json = JsonConvert.SerializeObject(documentChange.Document.Data);
var obj = JsonConvert.DeserializeObject <UserModel>(json);
result.Add(obj);
}
if (dataClass.loggedInUser.email == tempemail.email)
{
await DisplayAlert("Failed", "You cannot add yourself.", "Okay");
}
else if (result.Count != 0)
{
await DisplayAlert("Failed", "You both already have a connection.", "Okay");
}
else
{
bool res = await DisplayAlert("Add Contact", "Would you like to add " + tempemail.name + "?", "Yes", "No");
if (res)
{
ContactModel contact = new ContactModel()
{
id = IDGenerator.generateID(),
contactID = new string[] { DataClass.GetInstance.loggedInUser.uid, tempemail.uid },
contactEmail = new string[] { DataClass.GetInstance.loggedInUser.email, tempemail.email },
contactName = new string[] { DataClass.GetInstance.loggedInUser.name, tempemail.name },
created_at = DateTime.UtcNow
};
await CrossCloudFirestore.Current
.Instance
.GetCollection("contacts")
.GetDocument(contact.id)
.SetDataAsync(contact);
if (dataClass.loggedInUser.contacts == null)
{
dataClass.loggedInUser.contacts = new List <string>();
}
dataClass.loggedInUser.contacts.Add(tempemail.uid);
await CrossCloudFirestore.Current
.Instance
.GetCollection("users")
.GetDocument(dataClass.loggedInUser.uid)
.UpdateDataAsync(new { contacts = dataClass.loggedInUser.contacts });
if (tempemail.contacts == null)
{
tempemail.contacts = new List <string>();
}
tempemail.contacts.Add(dataClass.loggedInUser.uid);
await CrossCloudFirestore.Current
.Instance
.GetCollection("users")
.GetDocument(tempemail.uid)
.UpdateDataAsync(new { contacts = tempemail.contacts });
await Navigation.PushModalAsync(new TabPage());
await DisplayAlert("Success", "Contact added!", "Okay");
}
}
}