`extractNostrRefs` function should add the event's author to `pubkeys`

[TheAwiteb]

The Nostr nevent can contain the event's author, which should be added after verification. For URIs that don't contain the event author, wisp should search for the event author and add it if found.

https://github.com/barrydeen/wisp/blob/fd81e8f/app/src/main/kotlin/com/wisp/app/viewmodel/ComposeViewModel.kt#L453-L468

    private fun extractNostrRefs(content: String): Pair<Set<String>, Set<String>> {
        val pubkeys = mutableSetOf<String>()
        val eventIds = mutableSetOf<String>()
        for (match in NOSTR_URI_REGEX.findAll(content)) {
            val bech32 = match.groupValues[1]
            try {
                when (val data = Nip19.decodeNostrUri("nostr:$bech32")) {
                    is com.wisp.app.nostr.NostrUriData.ProfileRef -> pubkeys.add(data.pubkey)
                    is com.wisp.app.nostr.NostrUriData.NoteRef -> eventIds.add(data.eventId)
                    is com.wisp.app.nostr.NostrUriData.AddressRef -> {}
                    null -> {}
                }
            } catch (_: Exception) {}
        }
        return pubkeys to eventIds
    }

[barrydeen]

that would slow down the app considerably as this is called often

[TheAwiteb]

that would slow down the app considerably as this is called often

I thought it only called when we post a note, I didn't dig enough in the code.

Should we have one for posting? or another function that handle the event IDs and extend the public keys?