mirror of https://github.com/lukechilds/damus.git
Terry Yiu
2 years ago
committed by
William Casarin
William Casarin
5 changed files with 163 additions and 1 deletions
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// |
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// RepostsModel.swift |
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// damus |
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// |
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// Created by Terry Yiu on 1/22/23. |
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// |
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import Foundation |
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class RepostsModel: ObservableObject { |
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let state: DamusState |
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let target: String |
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let sub_id: String |
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let profiles_id: String |
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@Published var reposts: [NostrEvent] |
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init (state: DamusState, target: String) { |
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self.state = state |
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self.target = target |
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self.sub_id = UUID().description |
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self.profiles_id = UUID().description |
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self.reposts = [] |
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} |
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func get_filter() -> NostrFilter { |
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var filter = NostrFilter.filter_kinds([NostrKind.boost.rawValue]) |
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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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let filter = get_filter() |
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let filters = [filter] |
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self.state.pool.subscribe(sub_id: sub_id, filters: filters, handler: handle_nostr_event) |
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} |
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func unsubscribe() { |
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self.state.pool.unsubscribe(sub_id: sub_id) |
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} |
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func handle_event(relay_id: String, ev: NostrEvent) { |
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guard ev.kind == NostrKind.boost.rawValue else { |
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return |
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} |
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guard let reposted_event = last_etag(tags: ev.tags) else { |
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return |
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} |
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guard reposted_event == self.target else { |
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return |
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} |
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if insert_uniq_sorted_event(events: &self.reposts, 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 .eose(_): |
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load_profiles(profiles_subid: profiles_id, relay_id: relay_id, events: reposts, damus_state: state) |
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break |
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} |
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} |
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} |
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@ -0,0 +1,24 @@ |
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// |
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// RepostView.swift |
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// damus |
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// |
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// Created by Terry Yiu on 1/22/23. |
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// |
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import SwiftUI |
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struct RepostView: View { |
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let damus_state: DamusState |
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let repost: NostrEvent |
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var body: some View { |
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FollowUserView(target: .pubkey(repost.pubkey), damus_state: damus_state) |
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} |
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} |
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struct RepostView_Previews: PreviewProvider { |
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static var previews: some View { |
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RepostView(damus_state: test_damus_state(), repost: NostrEvent(id: "", content: "", pubkey: "")) |
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} |
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} |
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@ -0,0 +1,38 @@ |
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// |
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// RepostsView.swift |
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// damus |
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// |
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// Created by Terry Yiu on 1/22/23. |
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// |
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import SwiftUI |
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struct RepostsView: View { |
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let damus_state: DamusState |
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@StateObject var model: RepostsModel |
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var body: some View { |
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ScrollView { |
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LazyVStack { |
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ForEach(model.reposts, id: \.id) { ev in |
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RepostView(damus_state: damus_state, repost: ev) |
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} |
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} |
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.padding() |
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} |
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.navigationBarTitle(NSLocalizedString("Reposts", comment: "Navigation bar title for Reposts view.")) |
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.onAppear { |
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model.subscribe() |
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} |
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.onDisappear { |
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model.unsubscribe() |
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} |
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} |
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} |
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struct RepostsView_Previews: PreviewProvider { |
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static var previews: some View { |
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let state = test_damus_state() |
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RepostsView(damus_state: state, model: RepostsModel(state: state, target: "pubkey")) |
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} |
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} |
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