72 lines
1.8 KiB
Swift
72 lines
1.8 KiB
Swift
//
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// BookmarksManager.swift
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// damus
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//
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// Created by Joel Klabo on 2/18/23.
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//
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import Foundation
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fileprivate func get_bookmarks_key(pubkey: String) -> String {
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pk_setting_key(pubkey, key: "bookmarks")
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}
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func load_bookmarks(pubkey: String) -> [NostrEvent] {
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let key = get_bookmarks_key(pubkey: pubkey)
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return (UserDefaults.standard.stringArray(forKey: key) ?? []).compactMap {
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event_from_json(dat: $0)
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}
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}
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func save_bookmarks(pubkey: String, current_value: [NostrEvent], value: [NostrEvent]) -> Bool {
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let uniq_bookmarks = Array(Set(value))
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if uniq_bookmarks != current_value {
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let encoded = uniq_bookmarks.map(event_to_json)
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UserDefaults.standard.set(encoded, forKey: get_bookmarks_key(pubkey: pubkey))
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return true
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}
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return false
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}
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class BookmarksManager: ObservableObject {
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private let userDefaults = UserDefaults.standard
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private let pubkey: String
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private var _bookmarks: [NostrEvent]
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var bookmarks: [NostrEvent] {
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get {
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return _bookmarks
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}
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set {
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if save_bookmarks(pubkey: pubkey, current_value: _bookmarks, value: newValue) {
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self._bookmarks = newValue
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self.objectWillChange.send()
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}
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}
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}
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init(pubkey: String) {
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self._bookmarks = load_bookmarks(pubkey: pubkey)
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self.pubkey = pubkey
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}
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func isBookmarked(_ ev: NostrEvent) -> Bool {
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return bookmarks.contains(ev)
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}
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func updateBookmark(_ ev: NostrEvent) {
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if isBookmarked(ev) {
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bookmarks = bookmarks.filter { $0 != ev }
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} else {
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bookmarks.insert(ev, at: 0)
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}
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}
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func clearAll() {
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bookmarks = []
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}
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}
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