# Welcome Back. So you were playing around with a DVM and announced it to the world, but now you rather would like
# to remove it, because you don't want to run it anymore or you did it by accident. In this tutorial we look at how to
# remove NIP89 announcements, so our DVM doesn't appear in clients anymore.
# Check the main function for more instructions.



import asyncio
from datetime import timedelta

from nostr_sdk import Keys, Client, NostrSigner, Filter

from nostr_dvm.utils.definitions import EventDefinitions
from nostr_dvm.utils.dvmconfig import DVMConfig
from nostr_dvm.utils.nip89_utils import fetch_nip89_parameters_for_deletion

# Method to delete the NIP89, don't worry, you don't have to touch this, take a look in the main function.
async def delete_nip_89(private_key, relay_list, pow=True):
    keys = Keys.parse(private_key)
    dvm_config = DVMConfig()
    dvm_config.RELAY_LIST = relay_list
    client = Client(NostrSigner.keys(keys))
    for relay in dvm_config.RELAY_LIST:
        await client.add_relay(relay)
    await client.connect()
    filter = Filter().kind(EventDefinitions.KIND_ANNOUNCEMENT).author(keys.public_key())
    events = await client.fetch_events([filter], timedelta(seconds=5))
    
    if len(events.to_vec()) == 0:
        print("Couldn't find note on relays. Seems they are gone.")
        return
    
    for event in events.to_vec():
        print(event)
        await fetch_nip89_parameters_for_deletion(keys, event.id().to_hex(), client, dvm_config, pow)



if __name__ == '__main__':

    # What do you need to delete an event?

    # The first thing you need is the private key of the DVM the announcement was made for.
    # NostrDVM stores all your keys in the .env file. Open the .env file and search for
    # DVM_PRIVATE_KEY_{IDENTIFIER_OF_YOUR_DVM}. Enter it below in the field private_key:

    private_key = "83274234123..."

    # You can either use Proof of Work to send the delete event or not. Some relays require you to use POW in order to write.
    # Sending a POW event might take up to a couple of minutes, so if you decide to use it, have some patience in the progress.
    # If you know the relays you published your announcements to do not require POW, you can also set it to False which speeds up the progress.
    pow = False

    # And finally set the relay list you want to send the deletion request to. Ideally, you use the same relays that you use
    # in your DVM's config. Maybe announcements also got propagated to other relays, so you might need to play around a bit until it's gone everywhere.
    RELAY_LIST = ["wss://relay.primal.net",
                  "wss://relay.damus.io",
                  "wss://relay.nostrplebs.com",
                  "wss://promenade.fiatjaf.com",
                  "wss://nostr.mom",
                  "wss://nostr.oxtr.dev",
                  "wss://relay.nostr.band"
                  ]

    # That's it. Once you entered the info, run the script and if your private key matches the ID and the event can be found it should be deleted.
    # Otherwise you'll get a warning
    asyncio.run(delete_nip_89(private_key, RELAY_LIST, pow))