Isolated Apps / Dynamic Budgets followup tasks

[rolznz]

From #226

• mixing DB transactions with "payment transactions" is not so good
• Enable Roman's cleanup task for old request and response events
• isolated app possible follow-ups (in case we wish to spend more time on isolated apps)
  • internal payments should trigger NIP-47 notifications (this can be done by the transactions service publishing its own notifications rather than the notifier subscribing to LNClient notifications - this would simplify things too)
  • restrict isolated balance to not receive more than a certain budget (it's hard to do?)
  • prevent hub not spending balance that is set aside for other apps
  • prevent paying more than actual balance from main wallet into isolated wallets (you can send an infinite amount)
  • cashu isolated app payments does not work and causes money to be "lost" - disabled for now
• currently there are no DB indexes. I am not sure how this will perform when the number of payments grow
• ListTransactions on LNClients that support notifications should actually just throw an error (they should never be used)
• fee reserve calculation could be per-LNClient to completely match what the node sets
• Extra nip-47 controller tests
  • multi_pay_keysend (partial success)
  • list_transactions (paging params)
• onboard your friend/family flow with Dynamic Budgets and Alby Mobile
• undo LDK database changes in Alby fork (probably by undoing changes and then deleting old payments in a migration as they will be unused after we have our own payment DB)
• Blog post

[on4r]

prevent hub not spending balance that is set aside for other apps

this seems very important if you want to share your hub with friends and family

[max-peter]

prevent hub not spending balance that is set aside for other apps

this seems very important if you want to share your hub with friends and family

Yes, I second that. Should be a high priority. At least it would be helpfull show it if this happens. Right now I have to watch this myself and that is tricky without the exact balances from each isolated / family wallets!