public async void childAdded(DataSnapshot snapshot, string previousChildName)
{
// Card metadata
string fromUserID = (string)snapshot.Child("FromUserID").GetValue(true);
string cardID = (string)snapshot.Child("CardID").GetValue(true);
string mediaNames = (string)snapshot.Child("MediaNames").GetValue(true);
string cardName = (string)snapshot.Child("Name").GetValue(true);
//Ask user if accept card
if (await AcrDialogUtilities
.promptConfirm("Do you want to accept a card from " + fromUserID + "?"))
{
downloadCard(fromUserID, cardID, mediaNames, cardName);
}
}
/// <summary>
/// Listen to OtherCards database for new shared cards
/// </summary>
public async void initialize()
{
string userID = await AcrDialogUtilities.promptInput("Input User ID");
if (userID == "")
{
return;
}
// FirebaseDatabase - get cards shared with userID
FirebaseDatabase database = FirebaseDatabase.Instance;
DatabaseReference dr_userCardListItem = database.GetReference("Users").Child(userID).Child("OthersCards");
Query sharedCardsQuery = dr_userCardListItem.LimitToFirst(100);
sharedCardsQuery.AddChildEventListener(new FirebaseChildListener(this));
}
public async void uploadCard(Card card)
{
// TODO HARDCODED USER ID
string userID = await AcrDialogUtilities.promptInput("Input User ID");
string sendToUserID = await AcrDialogUtilities.promptInput("Input Share to User ID");
if (userID == "" || sendToUserID == "")
{
return;
}
// FirebaseDatabase - Update userID with card
FirebaseDatabase database = FirebaseDatabase.Instance;
DatabaseReference dr_curUser = database.GetReference("Users").Child(userID);
DatabaseReference dr_curUserCards = dr_curUser.Child("MyCards");
DatabaseReference dr_curCard = dr_curUserCards.Push(); // Unique card ID generated
dr_curCard.Child("Name").SetValue(card.name);
dr_curCard.Child("UploadFinished").SetValue(false);
dr_curCard.Child("MediaNames").SetValue(stringifyCardMediaNames(card));
// FirebaseDatabase - Update sendToUserID with card
DatabaseReference dr_userCardListItem = database.GetReference("Users").Child(sendToUserID).Child("OthersCards").Push();
dr_userCardListItem.Child("FromUserID").SetValue(userID);
dr_userCardListItem.Child("CardID").SetValue(dr_curCard.Key);
dr_userCardListItem.Child("MediaNames").SetValue(stringifyCardMediaNames(card));
dr_userCardListItem.Child("Name").SetValue(card.name);
// FirebaseStorage - Store card
FirebaseStorage storage = FirebaseStorage.Instance;
StorageReference sr_cud = storage.GetReference("Users").Child(userID);
StorageReference sr_curCard = sr_cud.Child(dr_curCard.Key); // Use unique card ID
StorageReference sr_cardMedias = sr_curCard.Child("Media");
uploadCardMedia(sr_cardMedias, card);
// Mark upload finished
dr_curCard.Child("UploadFinished").SetValue(true);
}