Files
damus/nostrdb/Ndb+.swift
Daniel D’Aquino 2f7a40bd50 Remove typed throws in some Ndb functions
Those are unused and it causes awkward implementations when different
error types need to be used.

Signed-off-by: Daniel D’Aquino <daniel@daquino.me>
2025-12-07 11:02:45 -08:00

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//
// Ndb+.swift
// damus
//
// Created by Daniel DAquino on 2025-04-04.
//
/// ## Implementation notes
///
/// 1. This was created as a separate file because it contains dependencies to damus-specific structures such as `NostrFilter`, which is not yet available inside the NostrDB codebase.
import Foundation
extension Ndb {
/// Subscribe to events matching the provided NostrFilters
/// - Parameters:
/// - filters: Array of NostrFilter objects
/// - maxSimultaneousResults: Maximum number of initial results to return
/// - Returns: AsyncStream of StreamItem events
/// - Throws: NdbStreamError if subscription fails
func subscribe(filters: [NostrFilter], maxSimultaneousResults: Int = 1000) throws -> AsyncStream<StreamItem> {
let ndbFilters: [NdbFilter]
do {
ndbFilters = try filters.toNdbFilters()
} catch {
throw NdbStreamError.cannotConvertFilter(error)
}
return try self.subscribe(filters: ndbFilters, maxSimultaneousResults: maxSimultaneousResults)
}
/// Determines if a given note was seen on any of the listed relay URLs
func was(noteKey: NoteKey, seenOnAnyOf relayUrls: [RelayURL], txn: SafeNdbTxn<()>? = nil) throws -> Bool {
return try self.was(noteKey: noteKey, seenOnAnyOf: relayUrls.map({ $0.absoluteString }), txn: txn)
}
func processEvent(_ str: String, originRelayURL: RelayURL? = nil) -> Bool {
self.process_event(str, originRelayURL: originRelayURL?.absoluteString)
}
}