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Add indication of followers you know in a profile

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Changelog-Added: Add indication of followers you know in a profile
This commit is contained in:
Terry Yiu
2023-06-20 00:54:26 -04:00
committed by William Casarin
parent de84456a57
commit 422167f7aa
8 changed files with 158 additions and 5 deletions
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20
damus/Models/Contacts.swift
View File

@@ -11,6 +11,8 @@ import Foundation
class Contacts {
private var friends: Set<String> = Set()
private var friend_of_friends: Set<String> = Set()
/// Tracks which friends are friends of a given pubkey.
private var pubkey_to_our_friends = [String : Set<String>]()
private var muted: Set<String> = Set()
let our_pubkey: String
@@ -58,6 +60,10 @@ class Contacts {
func remove_friend(_ pubkey: String) {
friends.remove(pubkey)
pubkey_to_our_friends.forEach {
pubkey_to_our_friends[$0.key]?.remove(pubkey)
}
}
func get_friend_list() -> [String] {
@@ -73,6 +79,15 @@ class Contacts {
for tag in contact.tags {
if tag.count >= 2 && tag[0] == "p" {
friend_of_friends.insert(tag[1])
// Exclude themself and us.
if contact.pubkey != our_pubkey && contact.pubkey != tag[1] {
if pubkey_to_our_friends[tag[1]] == nil {
pubkey_to_our_friends[tag[1]] = Set<String>()
}
pubkey_to_our_friends[tag[1]]?.insert(contact.pubkey)
}
}
}
}
@@ -96,6 +111,11 @@ class Contacts {
func follow_state(_ pubkey: String) -> FollowState {
return is_friend(pubkey) ? .follows : .unfollows
}
/// Gets the list of pubkeys of our friends who follow the given pubkey.
func get_friended_followers(_ pubkey: String) -> [String] {
return Array((pubkey_to_our_friends[pubkey] ?? Set()))
}
}
func follow_user(pool: RelayPool, our_contacts: NostrEvent?, pubkey: String, privkey: String, follow: ReferencedId) -> NostrEvent? {

2
damus/Models/HomeModel.swift
View File

@@ -386,7 +386,7 @@ class HomeModel {
var contacts_filter = NostrFilter(kinds: [.metadata])
contacts_filter.authors = friends
var our_contacts_filter = NostrFilter(kinds: [.contacts, .metadata])
our_contacts_filter.authors = [damus_state.pubkey]

21
damus/Views/FollowingView.swift
View File

@@ -29,9 +29,27 @@ struct FollowUserView: View {
}
}
struct FollowersYouKnowView: View {
let damus_state: DamusState
let friended_followers: [String]
@EnvironmentObject var followers: FollowersModel
var body: some View {
ScrollView {
LazyVStack(alignment: .leading) {
ForEach(friended_followers, id: \.self) { pk in
FollowUserView(target: .pubkey(pk), damus_state: damus_state)
}
}
.padding(.horizontal)
}
.navigationBarTitle(NSLocalizedString("Followers You Know", comment: "Navigation bar title for view that shows who is following a user."))
}
}
struct FollowersView: View {
let damus_state: DamusState
let whos: String
@EnvironmentObject var followers: FollowersModel
@@ -58,7 +76,6 @@ struct FollowingView: View {
let damus_state: DamusState
let following: FollowingModel
let whos: String
var body: some View {
ScrollView {

38
damus/Views/Profile/CondensedProfilePicturesView.swift Normal file
View File

@@ -0,0 +1,38 @@
//
// CondensedProfilePicturesView.swift
// damus
//
// Created by Terry Yiu on 6/19/23.
//
import SwiftUI
struct CondensedProfilePicturesView: View {
let state: DamusState
let pubkeys: [String]
let maxPictures: Int
init(state: DamusState, pubkeys: [String], maxPictures: Int) {
self.state = state
self.pubkeys = pubkeys
self.maxPictures = min(maxPictures, pubkeys.count)
}
var body: some View {
// Using ZStack to make profile pictures floating and stacked on top of each other.
ZStack {
ForEach((0..<maxPictures).reversed(), id: \.self) { index in
ProfilePicView(pubkey: pubkeys[index], size: 32.0, highlight: .none, profiles: state.profiles, disable_animation: state.settings.disable_animation)
.offset(x: CGFloat(index) * 20)
}
}
// Padding is needed so that other components drawn adjacent to this view don't get drawn on top.
.padding(.trailing, CGFloat((maxPictures - 1) * 20))
}
}
struct CondensedProfilePicturesView_Previews: PreviewProvider {
static var previews: some View {
CondensedProfilePicturesView(state: test_damus_state(), pubkeys: ["a", "b", "c", "d"], maxPictures: 3)
}
}

45
damus/Views/Profile/ProfileView.swift
View File

@@ -46,6 +46,31 @@ func relaysCountString(_ count: Int, locale: Locale = Locale.current) -> String
return String(format: format, locale: locale, count)
}
func followedByString(_ friend_intersection: [String], profiles: Profiles, locale: Locale = Locale.current) -> String {
let bundle = bundleForLocale(locale: locale)
let names: [String] = friend_intersection.prefix(3).map {
let profile = profiles.lookup(id: $0)
return Profile.displayName(profile: profile, pubkey: $0).username.truncate(maxLength: 20)
}
switch friend_intersection.count {
case 0:
return ""
case 1:
let format = NSLocalizedString("Followed by %@", bundle: bundle, comment: "Text to indicate that the user is followed by one of our follows.")
return String(format: format, locale: locale, names[0])
case 2:
let format = NSLocalizedString("Followed by %@ & %@", bundle: bundle, comment: "Text to indicate that the user is followed by two of our follows.")
return String(format: format, locale: locale, names[0], names[1])
case 3:
let format = NSLocalizedString("Followed by %@, %@ & %@", bundle: bundle, comment: "Text to indicate that the user is followed by three of our follows.")
return String(format: format, locale: locale, names[0], names[1], names[2])
default:
let format = localizedStringFormat(key: "followed_by_three_and_others", locale: locale)
return String(format: format, locale: locale, friend_intersection.count - 3, names[0], names[1], names[2])
}
}
struct EditButton: View {
let damus_state: DamusState
@@ -379,7 +404,7 @@ struct ProfileView: View {
if let contact = profile.contacts {
let contacts = contact.referenced_pubkeys.map { $0.ref_id }
let following_model = FollowingModel(damus_state: damus_state, contacts: contacts)
NavigationLink(destination: FollowingView(damus_state: damus_state, following: following_model, whos: profile.pubkey)) {
NavigationLink(destination: FollowingView(damus_state: damus_state, following: following_model)) {
HStack {
let noun_text = Text(verbatim: "\(followingCountString(profile.following))").font(.subheadline).foregroundColor(.gray)
Text("\(Text(verbatim: profile.following.formatted()).font(.subheadline.weight(.medium))) \(noun_text)", comment: "Sentence composed of 2 variables to describe how many profiles a user is following. In source English, the first variable is the number of profiles being followed, and the second variable is 'Following'.")
@@ -387,7 +412,7 @@ struct ProfileView: View {
}
.buttonStyle(PlainButtonStyle())
}
let fview = FollowersView(damus_state: damus_state, whos: profile.pubkey)
let fview = FollowersView(damus_state: damus_state)
.environmentObject(followers)
if followers.contacts != nil {
NavigationLink(destination: fview) {
@@ -420,6 +445,22 @@ struct ProfileView: View {
}
}
}
if profile.pubkey != damus_state.pubkey {
let friended_followers = damus_state.contacts.get_friended_followers(profile.pubkey)
if !friended_followers.isEmpty {
Spacer()
NavigationLink(destination: FollowersYouKnowView(damus_state: damus_state, friended_followers: friended_followers)) {
HStack {
CondensedProfilePicturesView(state: damus_state, pubkeys: friended_followers, maxPictures: 3)
Text(followedByString(friended_followers, profiles: damus_state.profiles))
.font(.subheadline).foregroundColor(.gray)
.multilineTextAlignment(.leading)
}
}
}
}
}
.padding(.horizontal)
}

16
damus/en-US.lproj/Localizable.stringsdict
View File

@@ -18,6 +18,22 @@
<string>... %d other notes ...</string>
</dict>
</dict>
<key>followed_by_three_and_others</key>
<dict>
<key>NSStringLocalizedFormatKey</key>
<string>%#@OTHERS@</string>
<key>OTHERS</key>
<dict>
<key>NSStringFormatSpecTypeKey</key>
<string>NSStringPluralRuleType</string>
<key>NSStringFormatValueTypeKey</key>
<string>d</string>
<key>one</key>
<string>Followed by %2$@, %3$@, %4$@ &amp; %1$d other</string>
<key>other</key>
<string>Followed by %2$@, %3$@, %4$@ &amp; %1$d others</string>
</dict>
</dict>
<key>followers_count</key>
<dict>
<key>NSStringLocalizedFormatKey</key>