77f5268336
This adds private zaps, which have messages and authors encrypted to the target. Keys are deterministically generated so that both the receiver and sender can decrypt. Changelog-Added: Private Zaps
84 lines
2.3 KiB
Swift
84 lines
2.3 KiB
Swift
//
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// ZapsModel.swift
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// damus
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//
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// Created by William Casarin on 2023-02-10.
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//
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import Foundation
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class ZapsModel: ObservableObject {
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let state: DamusState
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let target: ZapTarget
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var zaps: [Zap]
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let zaps_subid = UUID().description
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let profiles_subid = UUID().description
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init(state: DamusState, target: ZapTarget) {
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self.state = state
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self.target = target
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self.zaps = []
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}
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func subscribe() {
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var filter = NostrFilter.filter_kinds([9735])
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switch target {
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case .profile(let profile_id):
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filter.pubkeys = [profile_id]
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case .note(let note_target):
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filter.referenced_ids = [note_target.note_id]
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}
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state.pool.subscribe(sub_id: zaps_subid, filters: [filter], handler: handle_event)
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}
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func unsubscribe() {
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state.pool.unsubscribe(sub_id: zaps_subid)
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}
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func handle_event(relay_id: String, conn_ev: NostrConnectionEvent) {
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guard case .nostr_event(let resp) = conn_ev else {
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return
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}
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guard resp.subid == zaps_subid else {
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return
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}
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switch resp {
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case .notice:
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break
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case .eose:
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let events = self.zaps.map { $0.request.ev }
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load_profiles(profiles_subid: profiles_subid, relay_id: relay_id, load: .from_events(events), damus_state: state)
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case .event(_, let ev):
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guard ev.kind == 9735 else {
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return
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}
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if let zap = state.zaps.zaps[ev.id] {
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if insert_uniq_sorted_zap_by_amount(zaps: &zaps, new_zap: zap) {
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objectWillChange.send()
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}
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} else {
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guard let zapper = state.profiles.lookup_zapper(pubkey: target.pubkey) else {
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return
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}
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guard let zap = Zap.from_zap_event(zap_ev: ev, zapper: zapper, our_privkey: state.keypair.privkey) else {
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return
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}
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state.zaps.add_zap(zap: zap)
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if insert_uniq_sorted_zap_by_amount(zaps: &zaps, new_zap: zap) {
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objectWillChange.send()
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}
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}
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}
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}
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}
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