cebd1f48ca
This is a refactor of the codebase to use a more memory-efficient representation of notes. It should also be much faster at decoding since we're using a custom C json parser now. Changelog-Changed: Improved memory usage and performance when processing events
71 lines
1.8 KiB
Swift
71 lines
1.8 KiB
Swift
//
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// EventsModel.swift
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// damus
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//
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// Created by William Casarin on 2022-05-24.
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//
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import Foundation
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class EventsModel: ObservableObject {
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let state: DamusState
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let target: NoteId
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let kind: NostrKind
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let sub_id = UUID().uuidString
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let profiles_id = UUID().uuidString
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@Published var events: [NostrEvent] = []
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init(state: DamusState, target: NoteId, kind: NostrKind) {
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self.state = state
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self.target = target
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self.kind = kind
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}
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private func get_filter() -> NostrFilter {
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var filter = NostrFilter(kinds: [kind])
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filter.referenced_ids = [target]
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filter.limit = 500
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return filter
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}
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func subscribe() {
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state.pool.subscribe(sub_id: sub_id,
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filters: [get_filter()],
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handler: handle_nostr_event)
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}
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func unsubscribe() {
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state.pool.unsubscribe(sub_id: sub_id)
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}
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private func handle_event(relay_id: String, ev: NostrEvent) {
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guard ev.kind == kind.rawValue,
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ev.referenced_ids.last == target else {
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return
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}
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if insert_uniq_sorted_event(events: &self.events, new_ev: ev, cmp: { a, b in a.created_at < b.created_at } ) {
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objectWillChange.send()
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}
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}
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func handle_nostr_event(relay_id: String, ev: NostrConnectionEvent) {
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guard case .nostr_event(let nev) = ev else {
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return
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}
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switch nev {
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case .event(_, let ev):
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handle_event(relay_id: relay_id, ev: ev)
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case .notice:
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break
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case .ok:
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break
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case .eose:
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load_profiles(profiles_subid: profiles_id, relay_id: relay_id, load: .from_events(events), damus_state: state)
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}
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}
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}
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